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Dash AS, Billings E, Vlastaris K, Kim HJ, Cunningham ME, Raphael J, Lovecchio F, Carrino JA, Lebl D, McMahon D, Stein EM. Pre-operative bone quality deficits and risk of complications following spine fusion surgery among postmenopausal women. Osteoporos Int 2024; 35:551-560. [PMID: 37932510 DOI: 10.1007/s00198-023-06963-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 10/31/2023] [Indexed: 11/08/2023]
Abstract
Poor bone quality is a risk factor for complications after spinal fusion surgery. This study investigated pre-operative bone quality in postmenopausal women undergoing spine fusion and found that those with small bones, thinner cortices and surgeries involving more vertebral levels were at highest risk for complications. PURPOSE Spinal fusion is one of the most common surgeries performed worldwide. While skeletal complications are common, underlying skeletal deficits are often missed by pre-operative DXA due to artifact from spinal pathology. This prospective cohort study investigated pre-operative bone quality using high resolution peripheral CT (HRpQCT) and its relation to post-operative outcomes in postmenopausal women, a population that may be at particular risk for skeletal complications. We hypothesized that women with low volumetric BMD (vBMD) and abnormal microarchitecture would have higher rates of post-operative complications. METHODS Pre-operative imaging included areal BMD (aBMD) by DXA, cortical and trabecular vBMD and microarchitecture of the radius and tibia by high resolution peripheral CT. Intra-operative bone quality was subjectively graded based on resistance to pedicle screw insertion. Post-operative complications were assessed by radiographs and CTs. RESULTS Among 50 women enrolled (age 65 years), mean spine aBMD was normal and 35% had osteoporosis by DXA at any site. Low aBMD and vBMD were associated with "poor" subjective intra-operative quality. Skeletal complications occurred in 46% over a median follow-up of 15 months. In Cox proportional models, complications were associated with greater number of surgical levels (HR 1.19 95% CI 1.06-1.34), smaller tibia total area (HR 1.67 95% CI1.16-2.44) and lower tibial cortical thickness (HR 1.35 95% CI 1.05-1.75; model p < 0.01). CONCLUSION Women with smaller bones, thinner cortices and procedures involving a greater number of vertebrae were at highest risk for post-operative complications, providing insights into surgical and skeletal risk factors for complications in this population.
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Affiliation(s)
- Alexander S Dash
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
- Department of Medical Education, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Emma Billings
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
| | - Katelyn Vlastaris
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
| | - Han Jo Kim
- Spine Service, Hospital for Special Surgery, New York, NY, USA
| | | | - Joseph Raphael
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
| | | | - John A Carrino
- Department of Radiology, Hospital for Special Surgery, New York, NY, USA
| | - Darren Lebl
- Spine Service, Hospital for Special Surgery, New York, NY, USA
| | - Donald McMahon
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
| | - Emily M Stein
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA.
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2
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Kuker AP, Agarwal S, Shane E, Cohen A, Nickolas TL, Stein EM, Reid TJ, Hans D, Cremers S, Bruce JN, Freda PU. Persistent Deficits in Bone Quality in Treated Acromegaly: Evidence From Assessments of Microstructure. J Endocr Soc 2023; 7:bvad121. [PMID: 37809053 PMCID: PMC10553518 DOI: 10.1210/jendso/bvad121] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Indexed: 10/07/2023] Open
Abstract
Purpose Fractures are increased in patients with acromegaly, both before and after successful acromegaly treatment. Abnormalities of bone microstructure, which may underlie this fragility, are present in active acromegaly but to what extent these improve with acromegaly treatment or persist despite biochemical remission remains unclear. To examine these questions, we studied the effects of acromegaly treatment and remission on bone quality. Methods Sixty-five women and men with acromegaly were studied. Subgroups underwent assessments of areal bone mineral density by dual x-ray absorptiometry, trabecular bone score (TBS), and volumetric bone mineral density, microarchitecture, stiffness and failure load of the distal radius and tibia by high-resolution peripheral quantitative tomography in a longitudinal study before and after acromegaly treatment and in a cross-sectional study in which patients were compared to sex-, age-, and body mass index-matched healthy controls. Results In the longitudinal study, significant increases in total, cortical, and trabecular densities at the radius and tibia and increased stiffness and failure load of the tibia occurred with acromegaly treatment. In the cross-sectional study, patients in biochemical remission after surgery had larger bones, lower trabecular and cortical volumetric density, and disrupted trabecular microarchitecture compared to controls. TBS did not change with acromegaly treatment but correlated with some microstructural parameters. Conclusion We show, for the first time, that volumetric bone mineral density and microarchitecture of the peripheral skeleton improve with acromegaly treatment but remain abnormal in patients in remission after surgery compared to controls. These abnormalities, known to be associated with fractures in other populations, may play a role in the pathogenesis of persistent fragility in treated acromegaly.
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Affiliation(s)
- Adriana P Kuker
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
| | - Sanchita Agarwal
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
| | - Elizabeth Shane
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
| | - Adi Cohen
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
| | - Thomas L Nickolas
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
| | - Emily M Stein
- Endocrinology and Metabolic Bone Diseases, Hospital for Special Surgery, New York, NY 10032, USA
| | - Tirissa J Reid
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
| | - Didier Hans
- Center for Bone Diseases, Bone and Joint Department, Lausanne University Hospital, Lausanne 1011, Switzerland
| | - Serge Cremers
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
- Pathology and Cell Biology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
| | - Jeffrey N Bruce
- Neurosurgery, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
| | - Pamela U Freda
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
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Heilbronner AK, Koff MF, Breighner R, Kim HJ, Cunningham M, Lebl DR, Dash A, Clare S, Blumberg O, Zaworski C, McMahon DJ, Nieves JW, Stein EM. Opportunistic Evaluation of Trabecular Bone Texture by MRI Reflects Bone Mineral Density and Microarchitecture. J Clin Endocrinol Metab 2023; 108:e557-e566. [PMID: 36800234 PMCID: PMC10516518 DOI: 10.1210/clinem/dgad082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 01/13/2023] [Accepted: 02/08/2023] [Indexed: 02/18/2023]
Abstract
CONTEXT Many individuals at high risk for fracture are never evaluated for osteoporosis and subsequently do not receive necessary treatment. Utilization of magnetic resonance imaging (MRI) is burgeoning, providing an ideal opportunity to use MRI to identify individuals with skeletal deficits. We previously reported that MRI-based bone texture was more heterogeneous in postmenopausal women with a history of fracture compared to controls. OBJECTIVE The present study aimed to identify the microstructural characteristics that underlie trabecular texture features. METHODS In a prospective cohort, we measured spine volumetric bone mineral density (vBMD) by quantitative computed tomography (QCT), peripheral vBMD and microarchitecture by high-resolution peripheral QCT (HRpQCT), and areal BMD (aBMD) by dual-energy x-ray absorptiometry. Vertebral trabecular bone texture was analyzed using T1-weighted MRIs. A gray level co-occurrence matrix was used to characterize the distribution and spatial organization of voxelar intensities and derive the following texture features: contrast (variability), entropy (disorder), angular second moment (ASM; uniformity), and inverse difference moment (IDM; local homogeneity). RESULTS Among 46 patients (mean age 64, 54% women), lower peripheral vBMD and worse trabecular microarchitecture by HRpQCT were associated with greater texture heterogeneity by MRI-higher contrast and entropy (r ∼ -0.3 to 0.4, P < .05), lower ASM and IDM (r ∼ +0.3 to 0.4, P < .05). Lower spine vBMD by QCT was associated with higher contrast and entropy (r ∼ -0.5, P < .001), lower ASM and IDM (r ∼ +0.5, P < .001). Relationships with aBMD were less pronounced. CONCLUSION MRI-based measurements of trabecular bone texture relate to vBMD and microarchitecture, suggesting that this method reflects underlying microstructural properties of trabecular bone. Further investigation is required to validate this methodology, which could greatly improve identification of patients with skeletal fragility.
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Affiliation(s)
- Alison K Heilbronner
- Division of Endocrinology/Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY 10021, USA
| | - Matthew F Koff
- Department of Radiology and Imaging—MRI, Hospital for Special Surgery, New York, NY 10021, USA
| | - Ryan Breighner
- Department of Radiology and Imaging—MRI, Hospital for Special Surgery, New York, NY 10021, USA
| | - Han Jo Kim
- Spine Service, Hospital for Special Surgery, New York, NY 10021, USA
| | | | - Darren R Lebl
- Spine Service, Hospital for Special Surgery, New York, NY 10021, USA
| | - Alexander Dash
- Division of Endocrinology/Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY 10021, USA
| | - Shannon Clare
- Division of Endocrinology/Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY 10021, USA
| | - Olivia Blumberg
- Division of Endocrinology/Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY 10021, USA
| | - Caroline Zaworski
- Division of Endocrinology/Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY 10021, USA
| | - Donald J McMahon
- Division of Endocrinology/Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY 10021, USA
| | - Jeri W Nieves
- Division of Endocrinology/Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY 10021, USA
- Mailman School of Public Health and Institute of Human Nutrition, Columbia University, New York, NY 10032, USA
| | - Emily M Stein
- Division of Endocrinology/Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY 10021, USA
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4
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Heilbronner AK, Dash A, Straight BE, Snyder LJ, Ganesan S, Adu KB, Jae A, Clare S, Billings E, Kim HJ, Cunningham M, Lebl DR, Donnelly E, Stein EM. Peripheral cortical bone density predicts vertebral bone mineral properties in spine fusion surgery patients. Bone 2023; 169:116678. [PMID: 36646265 PMCID: PMC10081687 DOI: 10.1016/j.bone.2023.116678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 12/22/2022] [Accepted: 01/10/2023] [Indexed: 01/15/2023]
Abstract
Spine fusion surgery is one of the most common orthopedic procedures, with over 400,000 performed annually to correct deformities and pain. However, complications occur in approximately one third of cases. While many of these complications may be related to poor bone quality, it is difficult to detect bone abnormalities prior to surgery. Areal BMD (aBMD) assessed by DXA may be artifactually high in patients with spine pathology, leading to missed diagnosis of deficits. In this study, we related preoperative imaging characteristics of both central and peripheral sites to direct measurements of bone quality in vertebral biopsies. We hypothesized that pre-operative imaging outcomes would relate to vertebral bone mineralization and collagen properties. Pre-operative assessments included DXA measurements of aBMD of the spine, hip, and forearm, central quantitative computed tomography (QCT) of volumetric BMD (vBMD) at the lumbar spine, and high resolution peripheral quantitative computed tomography (HRpQCT; Xtreme CT2) measurements of vBMD and microarchitecture at the distal radius and tibia. Bone samples were collected intraoperatively from the lumbar vertebrae and analyzed using Fourier-transform Infrared (FTIR) spectroscopy. Bone samples were obtained from 23 postmenopausal women (mean age 67 ± 7 years, BMI 28 ± 8 kg/m2). We found that patients with more mature bone by FTIR, measured as lower acid phosphate content and carbonate to phosphate ratio, and greater collagen maturity and mineral maturity/crystallinity (MMC), had greater cortical vBMD at the tibia and greater aBMD at the lumbar spine and one-third radius. Our data suggests that bone quality at peripheral sites may predict bone quality at the spine. As bone quality at the spine is challenging to assess prior to surgery, there is a great need for additional screening tools. Pre-operative peripheral bone imaging may provide important insight into vertebral bone quality and may foster identification of patients with bone quality deficits.
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Affiliation(s)
- Alison K Heilbronner
- Division of Endocrinology, Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, United States of America
| | - Alexander Dash
- Division of Endocrinology, Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, United States of America
| | - Beth E Straight
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, United States of America
| | - Leah J Snyder
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, United States of America
| | - Sandhya Ganesan
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, United States of America
| | - Kobby B Adu
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, United States of America
| | - Andy Jae
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, United States of America
| | - Shannon Clare
- Division of Endocrinology, Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, United States of America
| | - Emma Billings
- Division of Endocrinology, Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, United States of America
| | - Han Jo Kim
- Spine Service, Hospital for Special Surgery, New York, NY, United States of America
| | - Matthew Cunningham
- Spine Service, Hospital for Special Surgery, New York, NY, United States of America
| | - Darren R Lebl
- Spine Service, Hospital for Special Surgery, New York, NY, United States of America
| | - Eve Donnelly
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, United States of America; Research Institute, Hospital for Special Surgery, New York, NY, United States of America
| | - Emily M Stein
- Division of Endocrinology, Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, United States of America.
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5
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Clare S, Dash A, Liu Y, Harrison J, Vlastaris K, Waldman S, Griffin R, Cooke P, Vad V, Casey E, Bockman RS, Lane J, McMahon D, Stein EM. Epidural Steroid Injections Acutely Suppress Bone Formation Markers in Postmenopausal Women. J Clin Endocrinol Metab 2022; 107:e3281-e3287. [PMID: 35524754 DOI: 10.1210/clinem/dgac287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Indexed: 11/19/2022]
Abstract
CONTEXT Over 9 million epidural steroid injections (ESIs) are performed annually in the United States. Although these injections effectively treat lumbar radicular pain, they may have adverse consequences, including bone loss. OBJECTIVE To investigate acute changes in bone turnover following ESI. We focused on postmenopausal women, who may be at greatest risk for adverse skeletal consequences due to the combined effects of ESIs with aging and estrogen deficiency. METHODS Single-center prospective observational study. Postmenopausal women undergoing lumbar ESIs and controls with no steroid exposure were included. Outcomes were serum cortisol, markers of bone formation, osteocalcin, and procollagen type-1 N-terminal propeptide (P1NP), and bone resorption by C-telopeptide (CTX) measured at baseline, 1, 4, 12, 26, and 52 weeks after ESIs. RESULTS Among ESI-treated women, serum cortisol declined by ~50% 1 week after injection. Bone formation markers significantly decreased 1 week following ESIs: osteocalcin by 21% and P1NP by 22%. Both markers remained suppressed at 4 and 12 weeks, but returned to baseline levels by 26 weeks. There was no significant change in bone resorption measured by CTX. Among controls, there were no significant changes in cortisol or bone turnover markers. CONCLUSION These results provide evidence of an early and substantial reduction in bone formation markers following ESIs. This effect persisted for over 12 weeks, suggesting that ESIs may have lasting skeletal consequences. Given the large population of older adults who receive ESIs, further investigation into the long-term skeletal sequelae of these injections is warranted.
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Affiliation(s)
- Shannon Clare
- Endocrinology Division, Hospital for Special Surgery, New York, NY 10021, USA
- Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY 10021, USA
| | - Alexander Dash
- Endocrinology Division, Hospital for Special Surgery, New York, NY 10021, USA
- Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY 10021, USA
| | - Yi Liu
- Endocrinology Division, Hospital for Special Surgery, New York, NY 10021, USA
- Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY 10021, USA
| | - Jonathan Harrison
- Endocrinology Division, Hospital for Special Surgery, New York, NY 10021, USA
- Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY 10021, USA
| | - Katelyn Vlastaris
- Endocrinology Division, Hospital for Special Surgery, New York, NY 10021, USA
- Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY 10021, USA
| | - Seth Waldman
- Department of Anesthesiology, Critical Care, & Pain Management, Hospital for Special Surgery, and Department of Anesthesiology, Weill Cornell Medicine, New York, NY 10021, USA
| | - Robert Griffin
- Department of Anesthesiology, Critical Care, & Pain Management, Hospital for Special Surgery, and Department of Anesthesiology, Weill Cornell Medicine, New York, NY 10021, USA
| | - Paul Cooke
- Department of Physiatry, Hospital for Special Surgery, New York, NY 10021, USA
| | - Vijay Vad
- Department of Physiatry, Hospital for Special Surgery, New York, NY 10021, USA
| | - Ellen Casey
- Department of Physiatry, Hospital for Special Surgery, New York, NY 10021, USA
| | - Richard S Bockman
- Endocrinology Division, Hospital for Special Surgery, New York, NY 10021, USA
- Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY 10021, USA
| | - Joseph Lane
- Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY 10021, USA
| | - Donald McMahon
- Endocrinology Division, Hospital for Special Surgery, New York, NY 10021, USA
- Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY 10021, USA
| | - Emily M Stein
- Endocrinology Division, Hospital for Special Surgery, New York, NY 10021, USA
- Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY 10021, USA
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6
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Sacher SE, Hunt HB, Lekkala S, Lopez KA, Potts J, Heilbronner AK, Stein EM, Hernandez CJ, Donnelly E. Distributions of Microdamage Are Altered Between Trabecular Rods and Plates in Cancellous Bone From Men With Type 2 Diabetes Mellitus. J Bone Miner Res 2022; 37:740-752. [PMID: 35064941 PMCID: PMC9833494 DOI: 10.1002/jbmr.4509] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 01/07/2022] [Accepted: 01/11/2022] [Indexed: 01/13/2023]
Abstract
Individuals with type 2 diabetes mellitus (T2DM) have an increased risk of fragility fracture despite exhibiting normal to high bone mineral density (BMD). Conditions arising from T2DM, such as reduced bone turnover and alterations in microarchitecture, may contribute to skeletal fragility by influencing bone morphology and microdamage accumulation. The objectives of this study were (i) to characterize the effect of T2DM on microdamage quantity and morphology in cancellous bone, and (ii) relate the accumulation of microdamage to the cancellous microarchitecture. Cancellous specimens from the femoral neck were collected during total hip arthroplasty (T2DM: n = 22, age = 65 ± 9 years, glycated hemoglobin [HbA1c] = 7.00% ± 0.98%; non-diabetic [non-DM]: n = 25, age = 61 ± 8 years, HbA1c = 5.50% ± 0.4%), compressed to 3% strain, stained with lead uranyl acetate to isolate microdamage, and scanned with micro-computed tomography (μCT). Individual trabeculae segmentation was used to isolate rod-like and plate-like trabeculae and their orientations with respect to the loading axis. The T2DM group trended toward a greater BV/TV (+27%, p = 0.07) and had a more plate-like trabecular architecture (+8% BVplates , p = 0.046) versus non-DM specimens. Rods were more damaged relative to their volume compared to plates in the non-DM group (DVrods /BVrods versus DVplates /BVplates : +49%, p < 0.0001), but this difference was absent in T2DM specimens. Longitudinal rods were more damaged in the non-DM group (DVlongitudinal rods /BVlongitudinal rods : +73% non-DM versus T2DM, p = 0.027). Total damage accumulation (DV/BV) and morphology (DS/DV) did not differ in T2DM versus non-DM specimens. These results provide evidence that cancellous microarchitecture does not explain fracture risk in T2DM, pointing to alterations in material matrix properties. In particular, cancellous bone from men with T2DM may have an attenuated ability to mitigate microdamage accumulation through sacrificial rods. © 2022 American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Sara E Sacher
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA
| | - Heather B Hunt
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA
| | - Sashank Lekkala
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA
| | - Kelsie A Lopez
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA
| | - Jesse Potts
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA
| | - Alison K Heilbronner
- Department of Medicine, Endocrinology and Metabolic Bone Service, Hospital for Special Surgery, New York, NY, USA
| | - Emily M Stein
- Department of Medicine, Endocrinology and Metabolic Bone Service, Hospital for Special Surgery, New York, NY, USA
| | - Christopher J Hernandez
- Research Division, Hospital for Special Surgery, New York, NY, USA.,Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, USA
| | - Eve Donnelly
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA.,Research Division, Hospital for Special Surgery, New York, NY, USA
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7
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Chukir T, Haseltine K, Do H, McMahon DJ, Russell L, Stein EM. Clinical Characteristics and Fracture Patterns Among Postmenopausal Women with Isolated Osteoporosis at the Forearm. J Clin Densitom 2022; 25:208-214. [PMID: 34511326 DOI: 10.1016/j.jocd.2021.07.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 07/22/2021] [Accepted: 07/29/2021] [Indexed: 11/28/2022]
Abstract
Patients found to have isolated osteoporosis at the 1/3 radius (1/3RO) represent a therapeutic dilemma. It is unknown whether 1/3RO is associated with an increased risk of fragility fractures, and is therefore unclear whether these patients should be treated similarly to those with osteoporosis at central sites. This retrospective study investigated the clinical significance of 1/3RO by comparing medical history, fracture prevalence, areal BMD, and Trabecular Bone Score in postmenopausal women with 1/3RO (n = 107) to age-matched women with osteoporosis at the hip and/or spine (PMO, n = 214), and to controls without osteoporosis at any site (n = 214). We then compared the clinical and densitometric characteristics among women with 1/3RO according to fracture history. The mean age of the 535 women included in the study was 71 ± 8 yr. Women with 1/3RO had BMD in the osteopenic range at all other sites (mean spine T-score = -1.0, total hip = -1.4, femoral neck = -1.7). Women with 1/3RO reported similar calcium and vitamin D intake, prevalence of primary hyperparathyroidism, chronic kidney disease, and other comorbidities compared to the other groups. The prevalence of an osteoporotic fracture of the spine, hip, wrist, or humerus tended to be higher among women with PMO compared to 1/3RO or controls (PMO: 31%, 1/3RO: 21%, Controls: 23%, p = 0.07). Among women with 1/3RO, fracture prevalence was related to older age. No other clinical characteristic distinguished women with and without fracture. Neither BMD at other sites nor TBS differed according to fracture history. Among postmenopausal women with 1/3RO, those who are older are at an increased risk of fracture, even when T-scores at other sites are well above the osteoporosis threshold. Additional research is needed to confirm our results, and to assess whether treatment should be considered to reduce fracture risk in older women with 1/3RO.
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Affiliation(s)
| | - Katherine Haseltine
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, USA.
| | - Huong Do
- Healthcare Research Institute, Hospital for Special Surgery, New York, NY 10021, USA
| | - Donald J McMahon
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, USA
| | - Linda Russell
- Rheumatology, Hospital for Special Surgery, New York, NY, USA
| | - Emily M Stein
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, USA
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8
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Krez A, Liu Y, Kanbour S, Clare S, Waldman S, Stein EM. The skeletal consequences of epidural steroid injections: a literature review. Osteoporos Int 2021; 32:2155-2162. [PMID: 34089066 DOI: 10.1007/s00198-021-05986-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 05/02/2021] [Indexed: 12/12/2022]
Abstract
UNLABELLED This literature review summarized studies that evaluated the effects of epidural steroid injections (ESIs) on skeletal health. While evidence is limited, studies suggest that ESIs may cause bone loss. Better understanding of these skeletal consequences will help foster strategies to prevent bone loss in the growing population of patients receiving ESIs. PURPOSE Approximately nine million epidural steroid injections (ESIs) are administered annually in the United States to treat radicular back pain. ESIs often provide pain relief and functional improvement. While the overall incidence of adverse events resulting from ESIs is low, their effects on the skeleton are poorly understood. This is an important consideration given the profound skeletal impact of other forms of glucocorticoids. METHODS Ovid MEDLINE and PubMed search results since 2010, including older, frequently referenced publications were reviewed. RESULTS Systemic absorption of glucocorticoids occurs after ESI, which can cause hyperglycemia and endogenous cortisol suppression. The majority of studies investigating the skeletal effects of ESIs are retrospective. Several have found a relationship between low areal bone mineral density (BMD) by dual-energy x-ray absorptiometry and ESI exposure, but this finding is not uniform. Recently a dose-response relationship between ESI exposure and low spine volumetric BMD by computed tomography has been reported. Few studies have investigated the relationship between ESI exposure and fracture risk. Results of these studies are conflicting, and most have not been adequately powered to detect fracture outcomes. CONCLUSIONS While evidence is limited, studies suggest that ESIs may cause bone loss, particularly those investigating volumetric BMD. Larger doses appear to confer greater risk. Further prospective studies are needed to investigate the relationship between ESI and fracture risk. Better understanding of the skeletal consequences of ESIs will help foster strategies to prevent bone loss in the growing population of patients receiving this treatment.
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Affiliation(s)
- A Krez
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
| | - Y Liu
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
| | - S Kanbour
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
| | - S Clare
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
| | - S Waldman
- Department of Anesthesiology, Critical Care, & Pain Management, Hospital for Special Surgery, New York, NY, USA
| | - E M Stein
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA.
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Kaneko K, Chen H, Kaufman M, Sverdlov I, Stein EM, Park‐Min K. Glucocorticoid-induced osteonecrosis in systemic lupus erythematosus patients. Clin Transl Med 2021; 11:e526. [PMID: 34709753 PMCID: PMC8506634 DOI: 10.1002/ctm2.526] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 07/21/2021] [Accepted: 07/25/2021] [Indexed: 12/24/2022] Open
Abstract
Osteonecrosis (ON) is a complex and multifactorial complication of systemic lupus erythematosus (SLE). ON is a devastating condition that causes severe pain and compromises the quality of life. The prevalence of ON in SLE patients is variable, ranging from 1.7% to 52%. However, the pathophysiology and risk factors for ON in patients with SLE have not yet been fully determined. Several mechanisms for SLE patients' propensity to develop ON have been proposed. Glucocorticoid is a widely used therapeutic option for SLE patients and high-dose glucocorticoid therapy in SLE patients is strongly associated with the development of ON. Although the hips and knees are the most commonly affected areas, it may be present at multiple anatomical locations. Clinically, ON often remains undetected until patients feel discomfort and pain at specific sites at which point the process of bone death is already advanced. However, strategies for prevention and options for treatment are limited. Here, we review the epidemiology, risk factors, diagnosis, and treatment options for glucocorticoid-induced ON, with a specific focus on patients with SLE.
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Affiliation(s)
- Kaichi Kaneko
- Arthritis and Tissue Degeneration Program, David Z. Rosensweig Genomics Research CenterHospital for Special SurgeryNew YorkNew York10021USA
| | - Hao Chen
- Arthritis and Tissue Degeneration Program, David Z. Rosensweig Genomics Research CenterHospital for Special SurgeryNew YorkNew York10021USA
- Department of OrthopedicsBeijing Friendship HospitalBeijing100050China
| | - Matthew Kaufman
- Arthritis and Tissue Degeneration Program, David Z. Rosensweig Genomics Research CenterHospital for Special SurgeryNew YorkNew York10021USA
- Case Western Reserve School of MedicineClevelandOhio44106USA
| | - Isaak Sverdlov
- Arthritis and Tissue Degeneration Program, David Z. Rosensweig Genomics Research CenterHospital for Special SurgeryNew YorkNew York10021USA
- Tuoro College of Osteopathic Medicine‐New York CampusNew YorkNew York10027USA
| | - Emily M. Stein
- Endocrinology Service, Hospital for Special SurgeryNew YorkNew YorkUSA
- Metabolic Bone Disease Service, Hospital for Special SurgeryNew YorkNew YorkUSA
| | - Kyung‐Hyun Park‐Min
- Arthritis and Tissue Degeneration Program, David Z. Rosensweig Genomics Research CenterHospital for Special SurgeryNew YorkNew York10021USA
- Department of MedicineWeill Cornell Medical CollegeNew YorkNew YorkUSA
- BCMB allied programWeill Cornell Graduate School of Medical SciencesNew YorkNew York10021USA
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10
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Krez A, Lane J, Heilbronner A, Park-Min KH, Kaneko K, Pannellini T, Mintz D, Hansen D, McMahon DJ, Kirou KA, Roboz G, Desai P, Bockman RS, Stein EM. Risk factors for multi-joint disease in patients with glucocorticoid-induced osteonecrosis. Osteoporos Int 2021; 32:2095-2103. [PMID: 33877383 PMCID: PMC8056829 DOI: 10.1007/s00198-021-05947-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Accepted: 04/01/2021] [Indexed: 12/24/2022]
Abstract
UNLABELLED This study investigated risk factors for osteonecrosis involving multiple joints (MJON) among glucocorticoid-treated patients. The best predictor of MJON was cumulative oral glucocorticoid dose. Risk of MJON was 12-fold higher in patients who had a second risk factor for osteonecrosis. Further research is needed into strategies for prevention of MJON. INTRODUCTION Osteonecrosis (ON) is a debilitating musculoskeletal condition in which bone cell death can lead to mechanical failure. When multiple joints are affected, pain and disability are compounded. Glucocorticoid treatment is one of the most common predisposing factors for ON. This study investigated risk factors for ON involving multiple joints (MJON) among glucocorticoid-treated patients. METHODS Fifty-five adults with glucocorticoid-induced ON were prospectively enrolled. MJON was defined as ON in ≥ three joints. Route, dose, duration, and timing of glucocorticoid treatment were assessed. RESULTS Mean age of enrolled subjects was 44 years, 58% were women. Half had underlying conditions associated with increased ON risk: systemic lupus erythematosus (29%), acute lymphoblastic leukemia (11%), HIV (9%), and alcohol use (4%). Mean daily oral dose of glucocorticoids was 29 mg. Average cumulative oral dose was 30 g over 5 years. The best predictor of MJON was cumulative oral glucocorticoid dose. For each increase of 1,000 mg, risk of MJON increased by 3.2% (95% CI 1.03, 1.67). Glucocorticoid exposure in the first 6 months of therapy, peak dose (oral or IV), and mean daily dose did not independently increase risk of MJON. The risk of MJON was 12-fold in patients who had a second risk factor (95% CI 3.2, 44.4). CONCLUSIONS Among patients with glucocorticoid-induced ON, cumulative oral dose was the best predictor of multi-joint disease; initial doses of IV and oral glucocorticoids did not independently increase risk. Further research is needed to better define optimal strategies for prevention and treatment of MJON.
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Affiliation(s)
- A Krez
- Endocrinology Service, Hospital for Special Surgery, 535 East 70th Street, New York, NY, USA
- Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, 10021, USA
| | - J Lane
- Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, 10021, USA
- Department of Orthopedic Surgery, Hospital for Special Surgery, New York, NY, USA
| | - A Heilbronner
- Endocrinology Service, Hospital for Special Surgery, 535 East 70th Street, New York, NY, USA
- Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, 10021, USA
| | - K-H Park-Min
- Arthritis and Tissue Degeneration Program, David Z. Rosensweig Genomic Research Center, Hospital for Special Surgery, New York, NY, USA
| | - K Kaneko
- Arthritis and Tissue Degeneration Program, David Z. Rosensweig Genomic Research Center, Hospital for Special Surgery, New York, NY, USA
| | - T Pannellini
- Research Division, Hospital for Special Surgery, New York, NY, USA
| | - D Mintz
- Department of Radiology and Imaging, Hospital for Special Surgery, New York, NY, USA
| | - D Hansen
- Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, 10021, USA
- Department of Orthopedic Surgery, Hospital for Special Surgery, New York, NY, USA
| | - D J McMahon
- Endocrinology Service, Hospital for Special Surgery, 535 East 70th Street, New York, NY, USA
- Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, 10021, USA
| | - K A Kirou
- Division of Rheumatology, Hospital for Special Surgery, New York, NY, USA
| | - G Roboz
- Department of Hematology and Oncology, Weill Cornell Medical Center, New York, NY, USA
| | - P Desai
- Department of Hematology and Oncology, Weill Cornell Medical Center, New York, NY, USA
| | - R S Bockman
- Endocrinology Service, Hospital for Special Surgery, 535 East 70th Street, New York, NY, USA
- Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, 10021, USA
| | - E M Stein
- Endocrinology Service, Hospital for Special Surgery, 535 East 70th Street, New York, NY, USA.
- Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, 10021, USA.
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11
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Zaworski C, Cheah J, Koff MF, Breighner R, Lin B, Harrison J, Donnelly E, Stein EM. MRI-based Texture Analysis of Trabecular Bone for Opportunistic Screening of Skeletal Fragility. J Clin Endocrinol Metab 2021; 106:2233-2241. [PMID: 33999148 DOI: 10.1210/clinem/dgab342] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Indexed: 11/19/2022]
Abstract
CONTEXT Many individuals at high risk for osteoporosis and fragility fracture are never screened by traditional methods. Opportunistic use of imaging obtained for other clinical purposes is required to foster identification of these patients. OBJECTIVE The aim of this pilot study was to evaluate texture features as a measure of bone fragility, by comparing clinically acquired magnetic resonance imaging (MRI) scans from individuals with and without a history of fragility fracture. METHODS This study retrospectively investigated 100 subjects who had lumbar spine MRI performed at our institution. Cases (n = 50) were postmenopausal women with osteoporosis and a confirmed history of fragility fracture. Controls (n = 50) were age- and race-matched postmenopausal women with no known fracture history. Trabecular bone from the lumbar vertebrae was segmented to create regions of interest within which a gray level co-occurrence matrix was used to quantify the distribution and spatial organization of voxel intensity. Heterogeneity in the trabecular bone texture was assessed by several features, including contrast (variability), entropy (disorder), and angular second moment (homogeneity). RESULTS Texture analysis revealed that trabecular bone was more heterogeneous in fracture patients. Specifically, fracture patients had greater texture variability (+76% contrast; P = 0.005), greater disorder (+10% entropy; P = 0.005), and less homogeneity (-50% angular second moment; P = 0.005) compared with controls. CONCLUSIONS MRI-based textural analysis of trabecular bone discriminated between patients with known osteoporotic fractures and controls. Further investigation is required to validate this promising methodology, which could greatly expand the number of patients screened for skeletal fragility.
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Affiliation(s)
- Caroline Zaworski
- Department of Medicine, Endocrinology and Metabolic Bone Service, Hospital for Special Surgery, NY, NY 10021, USA
| | - Jonathan Cheah
- Department of Medicine, Endocrinology and Metabolic Bone Service, Hospital for Special Surgery, NY, NY 10021, USA
| | - Matthew F Koff
- Department of Radiology and Imaging - MRI, Hospital for Special Surgery, NY, NY 10021, USA
| | - Ryan Breighner
- Department of Radiology and Imaging - MRI, Hospital for Special Surgery, NY, NY 10021, USA
| | - Bin Lin
- Department of Radiology and Imaging - MRI, Hospital for Special Surgery, NY, NY 10021, USA
| | - Jonathan Harrison
- Department of Medicine, Endocrinology and Metabolic Bone Service, Hospital for Special Surgery, NY, NY 10021, USA
| | - Eve Donnelly
- Materials Science and Engineering, Cornell University, Ithaca NY 14853, USA
| | - Emily M Stein
- Department of Medicine, Endocrinology and Metabolic Bone Service, Hospital for Special Surgery, NY, NY 10021, USA
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Affiliation(s)
- Christopher J Hernandez
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14853, USA
- Hospital for Special Surgery, New York, NY 10021, USA
- Correspondence: Christopher J. Hernandez, PhD, Sibley School of Mechanical and Aerospace Engineering, Cornell University, 124 Hoy Road, 355 Upson Hall, Ithaca, NY 14853, USA.
| | - Emily M Stein
- Hospital for Special Surgery, New York, NY 10021, USA
| | - Eve Donnelly
- Hospital for Special Surgery, New York, NY 10021, USA
- Materials Science and Engineering, Cornell University, Ithaca, New York, NY 14853, USA
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Krez A, Agarwal S, Bucovsky M, McMahon DJ, Hu Y, Bessler M, Schrope B, Carrelli A, Clare S, Guo XDE, Silverberg SJ, Stein EM. Long-term Bone Loss and Deterioration of Microarchitecture After Gastric Bypass in African American and Latina Women. J Clin Endocrinol Metab 2021; 106:e1868-e1879. [PMID: 33098299 PMCID: PMC8502471 DOI: 10.1210/clinem/dgaa654] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 09/14/2020] [Indexed: 01/06/2023]
Abstract
CONTEXT The prevalence of obesity is burgeoning among African American and Latina women; however, few studies investigating the skeletal effects of bariatric surgery have focused on these groups. OBJECTIVE To investigate long-term skeletal changes following Roux-en-Y gastric bypass (RYGB) in African American and Latina women. DESIGN Four-year prospective cohort study. PATIENTS African American and Latina women presenting for RYGB (n = 17, mean age 44, body mass index 44 kg/m2) were followed annually for 4 years postoperatively. MAIN OUTCOME MEASURES Dual-energy x-ray absorptiometry (DXA) measured areal bone mineral density (aBMD) at the spine, hip, and forearm, and body composition. High-resolution peripheral quantitative computed tomography measured volumetric bone mineral density (vBMD) and microarchitecture. Individual trabecula segmentation-based morphological analysis assessed trabecular morphology and connectivity. RESULTS Baseline DXA Z-Scores were normal. Weight decreased ~30% at Year 1, then stabilized. Parathyroid hormone (PTH) increased by 50% and 25-hydroxyvitamin D was stable. By Year 4, aBMD had declined at all sites, most substantially in the hip. There was significant, progressive loss of cortical and trabecular vBMD, deterioration of microarchitecture, and increased cortical porosity at both the radius and tibia over 4 years. There was loss of trabecular plates, loss of axially aligned trabeculae, and decreased trabecular connectivity. Whole bone stiffness and failure load declined. Risk factors for bone loss included greater weight loss, rise in PTH, and older age. CONCLUSIONS African American and Latina women had substantial and progressive bone loss, deterioration of microarchitecture, and trabecular morphology following RYGB. Further studies are critical to understand the long-term skeletal consequences of bariatric surgery in this population.
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Affiliation(s)
- Alexandra Krez
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, New York, New York
| | - Sanchita Agarwal
- Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York
| | - Mariana Bucovsky
- Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York
| | - Donald J McMahon
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, New York, New York
- Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York
| | - Yizhong Hu
- Bone Bioengineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, New York
| | - Marc Bessler
- Department of Surgery, Columbia University College of Physicians and Surgeons, New York, NY
| | - Beth Schrope
- Department of Surgery, Columbia University College of Physicians and Surgeons, New York, NY
| | - Angela Carrelli
- Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York
| | - Shannon Clare
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, New York, New York
| | - Xiang-Dong Edward Guo
- Bone Bioengineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, New York
| | - Shonni J Silverberg
- Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York
| | - Emily M Stein
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, New York, New York
- Correspondence and Reprint Requests: Emily M. Stein, MD, MS, Director of Research, Metabolic Bone Service, Hospital for Special Surgery, Associate Professor of Medicine, Weill Cornell Medical College, 535 East 70th Street, New York, NY 10021. E-mail:
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Kim HJ, Dash A, Cunningham M, Schwab F, Dowdell J, Harrison J, Zaworski C, Krez A, Lafage V, Agarwal S, Carlson B, McMahon DJ, Stein EM. Patients with abnormal microarchitecture have an increased risk of early complications after spinal fusion surgery. Bone 2021; 143:115731. [PMID: 33157283 PMCID: PMC9518007 DOI: 10.1016/j.bone.2020.115731] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/29/2020] [Accepted: 10/30/2020] [Indexed: 12/12/2022]
Abstract
Spine fusion is one of the most common orthopedic surgeries, with more than 400,000 cases performed annually. While these procedures correct debilitating pain and deformities, complications occur in up to 45%. As successful fusion rests upon early stability of hardware in bone, patients with structural skeletal deficits may be at particular risk for complications. Few studies have investigated this relationship, and none have used higher order imaging to evaluate microstructural mechanisms for complications. Standard DXA measurements are subject to artifact in patients with spinal disease and therefore provide limited information. The goal of this prospective study was to investigate pre-operative bone quality as a risk factor for early post-operative complications using high resolution peripheral QCT (HR-pQCT) measurements of volumetric BMD (vBMD) and microarchitecture. We hypothesized that patients with low vBMD and abnormal microarchitecture at baseline would have more skeletal complications post-operatively. Conversely, we hypothesized that pre-operative DXA measurements would not be predictive of complications. Fifty-four subjects (mean age 63 years, BMI 27 kg/m2) were enrolled pre-operatively and followed for 6 months after multi-level lumbar spine fusion. Skeletal complications occurred in 14 patients. Patients who developed complications were of similar age and BMI to those who did not. Baseline areal BMD and Trabecular Bone Score by DXA did not differ. In contrast, HR-pQCT revealed that patients who developed complications had lower trabecular vBMD, fewer and thinner trabeculae at both the radius and tibia, and thinner tibial cortices. In summary, abnormalities of both trabecular and cortical microarchitecture were associated the development of complications within the first six months following spine fusion surgery. Our results suggest a mechanism for early skeletal complications after fusion. Given the burgeoning number of fusion surgeries, further studies are necessary to investigate strategies that may improve bone quality and lower the risk of post-operative complications.
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Affiliation(s)
- Han Jo Kim
- Spine Service, Hospital for Special Surgery, New York, NY, United States of America
| | - Alexander Dash
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, United States of America
| | - Matthew Cunningham
- Spine Service, Hospital for Special Surgery, New York, NY, United States of America
| | - Frank Schwab
- Spine Service, Hospital for Special Surgery, New York, NY, United States of America
| | - James Dowdell
- Spine Service, Hospital for Special Surgery, New York, NY, United States of America
| | - Jonathan Harrison
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, United States of America
| | - Caroline Zaworski
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, United States of America
| | - Alexandra Krez
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, United States of America
| | - Virginie Lafage
- Spine Service, Hospital for Special Surgery, New York, NY, United States of America
| | - Sanchita Agarwal
- Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY, United States of America
| | - Brandon Carlson
- Department of Orthopedic Surgery, University of Kansas Medical Center, Kansas City, KS, United States of America
| | - Donald J McMahon
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, United States of America
| | - Emily M Stein
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, United States of America.
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Miller AO, Kapadia M, Kirksey MA, Sandhu M, Jannat-Khah D, Bui T, Boyle KK, Krez A, Russell L, O’Neill J, Stein EM, Henry MW, Antao VC, Padgett DE. Clinical Experience with COVID-19 at a Specialty Orthopedic Hospital Converted to a Pandemic Overflow Field Hospital. HSS J 2020; 16:3-9. [PMID: 32837415 PMCID: PMC7431310 DOI: 10.1007/s11420-020-09779-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 07/14/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND COVID-19, the illness caused by the novel coronavirus, SARS-CoV-2, has sickened millions and killed hundreds of thousands as of June 2020. New York City was affected gravely. Our hospital, a specialty orthopedic hospital unaccustomed to large volumes of patients with life-threatening respiratory infections, underwent rapid adaptation to care for COVID-19 patients in response to emergency surge conditions at neighboring hospitals. PURPOSES We sought to determine the attributes, pharmacologic and other treatments, and clinical course in the cohort of patients with COVID-19 who were admitted to our hospital at the height of the pandemic in April 2020 in New York City. METHODS We conducted a retrospective observational cohort study of all patients admitted between April 1 and April 21, 2020, who had a diagnosis of COVID-19. Data were gathered from the electronic health record and by manual chart abstraction. RESULTS Of the 148 patients admitted with COVID-19 (mean age, 62 years), ten patients died. There were no deaths among non-critically ill patients transferred from other hospitals, while 26% of those with critical illness died. A subset of COVID-19 patients was admitted for orthopedic and medical conditions other than COVID-19, and some of these patients required intensive care and ventilatory support. CONCLUSION Professional and organizational flexibility during pandemic conditions allowed a specialty orthopedic hospital to provide excellent care in a global public health emergency.
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Affiliation(s)
- Andy O. Miller
- Department of Medicine, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021 USA
| | - Milan Kapadia
- Department of Medicine, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021 USA
| | - Meghan A. Kirksey
- Department of Anesthesiology, Critical Care, and Pain Management, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021 USA
| | | | - Deanna Jannat-Khah
- Department of Medicine, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021 USA
| | - Trang Bui
- Department of Medicine, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021 USA
| | - K. Keely Boyle
- Department of Orthopedic Surgery, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021 USA
| | - Alexandra Krez
- Department of Medicine, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021 USA
| | - Linda Russell
- Department of Medicine, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021 USA
| | - Jennifer O’Neill
- Department of Nursing, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021 USA
| | - Emily M. Stein
- Department of Medicine, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021 USA
| | - Michael W. Henry
- Department of Medicine, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021 USA
| | - Vinicius C. Antao
- Department of Value, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021 USA
| | - Douglas E. Padgett
- Department of Orthopedic Surgery, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021 USA
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Abstract
PURPOSE OF REVIEW This review outlines the recent findings regarding the impact of bariatric surgery on bone. It explores potential mechanisms for skeletal changes following bariatric surgery and strategies for management. RECENT FINDINGS Bone loss following bariatric surgery is multifactorial. Probable mechanisms include skeletal unloading, abnormalities in calciotropic hormones, and changes in gut hormones. Skeletal changes that occur after bariatric surgery are specific to procedure type and persist for several years post-operatively. Studies suggest that while bone loss begins early, fracture risk may be increased later in the post-operative course, particularly after Roux-en-Y gastric bypass (RYGB). Further research is needed to assess the extent to which skeletal changes following bariatric surgery result in fragility. Current management should be geared toward prevention of bone loss, correction of nutritional deficiencies, and incorporation of weight bearing exercise. Pharmacologic treatment should be considered for high-risk patients.
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Affiliation(s)
- Alexandra N Krez
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery New York, New York, USA
| | - Emily M Stein
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery New York, New York, USA.
- Weill Cornell Medical College, 535 East 70th Street, New York, NY, 10021, USA.
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17
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Liu Y, Dash A, Krez A, Kim HJ, Cunningham M, Schwab F, Hughes A, Carlson B, Samuel A, Marty E, Moore H, McMahon DJ, Carrino JA, Bockman RS, Stein EM. Low volumetric bone density is a risk factor for early complications after spine fusion surgery. Osteoporos Int 2020; 31:647-654. [PMID: 31919536 DOI: 10.1007/s00198-019-05245-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 11/20/2019] [Indexed: 12/17/2022]
Abstract
UNLABELLED This study aims to investigate lumbar spine (LS) volumetric bone density (vBMD) as a risk factor for complications (pseudoarthrosis, instrumentation failure, adjacent fractures), re-operation, and time to complication after fusion. INTRODUCTION Lumbar spine (LS) fusion surgery is increasingly performed worldwide. Complications after fusion result in significant morbidity and healthcare costs. Multiple factors, including osteoporosis, have been suggested to contribute to risk of complications and re-operation. However, most studies have used DXA, which is subject to artifact in patients with spine pathology, and none have investigated the relationship between BMD and timing of post-operative complications. This study aims to investigate LS volumetric bone density (vBMD) as a risk factor for complications (pseudoarthrosis, instrumentation failure, adjacent fractures), re-operation, and time to complication after fusion. METHODS We evaluated a cohort of 359 patients who had initial LS fusion surgery at our institution, had pre-operative LS CTs and post-operative imaging available for review. Demographic factors, smoking status, vBMD, and details of surgical procedure were related to likelihood and timing of post-operative complications. RESULTS Mean age was 60 ± 14 years, vBMD 122 ± 37 g/cm3. Median follow-up was 11 months. Skeletal complications occurred in 47 patients (13%); 34 patients (10%) required re-operation. Low vBMD (directly measured and estimated using HU) and smoking were associated with increased risk of skeletal complications. Each increase in baseline vBMD of 10 g/cm3 decreased the complication hazard and increased the complication-free duration in time-to-event analysis (hazard ratio 0.91, 95% CI 0.83-0.98, p < 0.02). CONCLUSIONS Low vBMD was a significant risk factor for early post-operative complications in patients undergoing LS fusion. Prospective studies are needed to confirm these findings and to elucidate the optimal timing for follow-up and strategies for prevention of post-operative complications in this population.
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Affiliation(s)
- Y Liu
- Division of Endocrinology and Metabolic Bone Disease, Hospital for Special Surgery, 535 East 70th Street, New York, NY, USA
- Department of Medicine, Lahey Clinic, Burlington, MA, USA
| | - A Dash
- Division of Endocrinology and Metabolic Bone Disease, Hospital for Special Surgery, 535 East 70th Street, New York, NY, USA
| | - A Krez
- Division of Endocrinology and Metabolic Bone Disease, Hospital for Special Surgery, 535 East 70th Street, New York, NY, USA
| | - H J Kim
- Department of Orthopedics, Hospital for Special Surgery, New York, NY, USA
| | - M Cunningham
- Department of Orthopedics, Hospital for Special Surgery, New York, NY, USA
| | - F Schwab
- Department of Orthopedics, Hospital for Special Surgery, New York, NY, USA
| | - A Hughes
- Department of Orthopedics, Hospital for Special Surgery, New York, NY, USA
| | - B Carlson
- Department of Orthopedics, Hospital for Special Surgery, New York, NY, USA
- Department of Orthopedics, University of Kansas Medical Center, Kansas City, KS, USA
| | - A Samuel
- Department of Orthopedics, Hospital for Special Surgery, New York, NY, USA
| | - E Marty
- Department of Orthopedics, Hospital for Special Surgery, New York, NY, USA
| | - H Moore
- Weill Cornell Medical College, New York, NY, USA
| | - D J McMahon
- Division of Endocrinology and Metabolic Bone Disease, Hospital for Special Surgery, 535 East 70th Street, New York, NY, USA
| | - J A Carrino
- Department of Radiology, Hospital for Special Surgery, New York, NY, USA
| | - R S Bockman
- Division of Endocrinology and Metabolic Bone Disease, Hospital for Special Surgery, 535 East 70th Street, New York, NY, USA
| | - E M Stein
- Division of Endocrinology and Metabolic Bone Disease, Hospital for Special Surgery, 535 East 70th Street, New York, NY, USA.
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Dash AS, Agarwal S, McMahon DJ, Cosman F, Nieves J, Bucovsky M, Guo XE, Shane E, Stein EM. Abnormal microarchitecture and stiffness in postmenopausal women with isolated osteoporosis at the 1/3 radius. Bone 2020; 132:115211. [PMID: 31870633 PMCID: PMC8853460 DOI: 10.1016/j.bone.2019.115211] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 12/18/2019] [Accepted: 12/18/2019] [Indexed: 11/19/2022]
Abstract
BACKGROUND Postmenopausal women with isolated osteoporosis at the 1/3 radius (1/3RO) present a therapeutic dilemma. Little is known about whether these patients have generalized skeletal fragility, and whether this finding warrants treatment. The aim of this study was to investigate the biochemical and microarchitectural phenotype of women with 1/3RO compared to women with classic postmenopausal osteoporosis by DXA at the spine and hip (PMO), and controls without osteoporosis at any site. METHODS This cross-sectional study enrolled 266 postmenopausal women, who were grouped according to densitometric pattern. Subjects had serum biochemistries, areal BMD (aBMD) measured by DXA, trabecular and cortical vBMD, microarchitecture, and stiffness by high resolution peripheral QCT (HR-pQCT, voxel size ~82 μm) of the distal radius and tibia. RESULTS Mean age was 68 ± 7 years. DXA T-Scores reflected study design. By HR-pQCT, 1/3RO had abnormalities at both radius and tibia compared to controls: lower total, cortical and trabecular vBMD, cortical thickness and trabecular number, higher trabecular separation and heterogeneity, and lower whole bone stiffness. In contrast, the magnitude and pattern of abnormalities in vBMD, microarchitecture and stiffness in 1/3RO were similar to those in PMO; the difference compared to controls was similar among the two groups. Serum calcium, creatinine, parathyroid hormone, 25-hydroxyvitamin D, and 24-hour urine calcium did not differ. CONCLUSIONS Although aBMD appeared relatively preserved at the spine and hip by DXA, women with 1/3RO had significant microarchitectural and biomechanical deficits comparable to those in women with typical PMO. Further study is required to guide treatment decisions in this population.
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Affiliation(s)
- Alexander S Dash
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, United States of America
| | - Sanchita Agarwal
- Division of Endocrinology, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY, United States of America
| | - Donald J McMahon
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, United States of America; Division of Endocrinology, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY, United States of America
| | - Felicia Cosman
- Division of Endocrinology, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY, United States of America
| | - Jeri Nieves
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, United States of America; Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, United States of America
| | - Mariana Bucovsky
- Division of Endocrinology, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY, United States of America
| | - X Edward Guo
- Bone Bioengineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, NY, United States of America
| | - Elizabeth Shane
- Division of Endocrinology, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY, United States of America
| | - Emily M Stein
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, New York, NY, United States of America.
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19
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Cohen A, Kamanda-Kosseh M, Dempster DW, Zhou H, Müller R, Goff E, Colon I, Bucovsky M, Stubby J, Nickolas TL, Stein EM, Recker RR, Lappe JM, Shane E. Women With Pregnancy and Lactation-Associated Osteoporosis (PLO) Have Low Bone Remodeling Rates at the Tissue Level. J Bone Miner Res 2019; 34:1552-1561. [PMID: 31348548 PMCID: PMC6744311 DOI: 10.1002/jbmr.3750] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 03/19/2019] [Accepted: 04/21/2019] [Indexed: 01/19/2023]
Abstract
Pregnancy and lactation-associated osteoporosis (PLO) is a rare, severe, early form of osteoporosis in which young women present with fractures, usually multiple vertebral fractures, during late pregnancy or lactation. In studies of idiopathic osteoporosis (IOP) in premenopausal women, we enrolled 78 women with low-trauma fractures and 40 healthy controls, all with normal menses and no secondary cause of bone loss. In 15 of the affected women, the PLO subgroup, fractures had occurred during late pregnancy or lactation. We hypothesized that clinical, bone structural, and metabolic characteristics would differ between women with PLO and those with (non-PLO) IOP and controls. All were evaluated > 12 months postpartum, when structural and remodeling characteristics would be expected to reflect baseline premenopausal status rather than transient postpartum changes. As previously reported, affected subjects (PLO and IOP) had BMD and microarchitectural deficiencies compared to controls. Women with PLO did not differ from those with IOP in terms of age, BMI, body fat, menarcheal age, parity, or age at first pregnancy. However, women with PLO had a more severe clinical presentation than those with IOP: more fractures (5.5 ± 3.3 versus 2.6 ± 2.1; p = 0.005); more vertebral fractures (80% versus 17%; p < 0.001); and higher prevalence of multiple fractures. BMD deficits were more profound and cortical width tended to be lower in PLO. PLO subjects also had significantly lower tissue-level mineral apposition rate and bone formation rates (0.005 ± 0.005 versus 0.011 ± 0.010 mm2 /mm/year; p = 0.006), as well as lower serum P1NP (33 ± 12 versus 44 ± 18 µg/L; p = 0.02) and CTX (257 ± 102 versus 355 ± 193 pg/mL; p = 0.01) than IOP. The finding that women with PLO have a low bone remodeling state assessed more than a year postpartum increases our understanding of the pathogenic mechanism of PLO. We conclude that women with PLO may have underlying osteoblast functional deficits which could affect their therapeutic response to osteoanabolic medications. © 2019 American Society for Bone and Mineral Research.
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Affiliation(s)
- Adi Cohen
- Department of Medicine, Division of Endocrinology, Columbia University Irving Medical Center, New York, NY, USA
| | - Mafo Kamanda-Kosseh
- Department of Medicine, Division of Endocrinology, Columbia University Irving Medical Center, New York, NY, USA
| | - David W Dempster
- Department of Clinical Pathology and Cell Biology, Columbia University, New York, NY, USA.,Regional Bone Center, Helen Hayes Hospital, West Haverstraw, NY, USA
| | - Hua Zhou
- Regional Bone Center, Helen Hayes Hospital, West Haverstraw, NY, USA
| | - Ralph Müller
- Institute for Biomechanics, ETH Zurich, Zurich, Switzerland
| | - Elliott Goff
- Institute for Biomechanics, ETH Zurich, Zurich, Switzerland
| | - Ivelisse Colon
- Department of Medicine, Division of Endocrinology, Columbia University Irving Medical Center, New York, NY, USA
| | - Mariana Bucovsky
- Department of Medicine, Division of Endocrinology, Columbia University Irving Medical Center, New York, NY, USA
| | - Julie Stubby
- Department of Clinical Pathology and Cell Biology, Columbia University, New York, NY, USA
| | - Thomas L Nickolas
- Department of Medicine, Division of Nephrology, Columbia University Irving Medical Center, New York, NY, USA
| | - Emily M Stein
- Division of Endocrinology, Hospital for Special Surgery, New York, NY, USA
| | - Robert R Recker
- Department of Medicine, Division of Endocrinology, Creighton University school of Medicine, Omaha, NE, USA
| | - Joan M Lappe
- Department of Medicine and College of Nursing, Creighton University school of Medicine, Omaha, NE, USA
| | - Elizabeth Shane
- Department of Medicine, Division of Endocrinology, Columbia University Irving Medical Center, New York, NY, USA
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20
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Stein EM, Dash A, Bucovsky M, Agarwal S, Fu J, Lentzsch S, Shane E. Disrupted radial and tibial microarchitecture in patients with monoclonal gammopathy of undetermined significance. Osteoporos Int 2019; 30:629-635. [PMID: 30488275 PMCID: PMC10081445 DOI: 10.1007/s00198-018-4787-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 11/12/2018] [Accepted: 11/18/2018] [Indexed: 02/06/2023]
Abstract
UNLABELLED Patients with monoclonal gammopathy of undetermined significance (MGUS) had abnormalities in volumetric BMD (vBMD), microarchitecture, and stiffness at both the radius and tibia by high-resolution peripheral quantitative CT compared to matched controls. This is the first report demonstrating that patients with MGUS have microarchitectural deficits at multiple skeletal sites. INTRODUCTION Fracture risk is elevated in patients with monoclonal gammopathy of undetermined significance (MGUS). However, the pathogenesis of bone disease in these patients is poorly understood. Prior work using high-resolution peripheral CT (HRpQCT) demonstrated abnormal microarchitecture at the radius, with predominantly cortical abnormalities. We hypothesized that patients with MGUS have abnormal microarchitecture at both radius and tibia compared to controls, reflecting global skeletal effects of the disease. METHODS This case-control study enrolled 36 subjects; patients with MGUS (n = 12) were matched 1:2 by age, sex, and race to controls (n = 24). Areal BMD (aBMD) was measured by DXA, vBMD, and microarchitecture by HRpQCT, and whole bone stiffness by finite element analysis. Serum was drawn for markers of bone metabolism and inflammation. RESULTS By DXA, MGUS patients had lower aBMD at the lumbar spine, femoral neck, and 1/3 radius. Markers of bone metabolism and inflammation did not differ. By HRpQCT at the radius, MGUS patients had lower total, trabecular and cortical density, lower trabecular number, and greater trabecular separation and heterogeneity. At the tibia, MGUS patients had lower total and trabecular density, lower trabecular number, greater separation and heterogeneity, and lower whole bone stiffness. CONCLUSIONS Patients with MGUS had lower vBMD, cortical, and trabecular abnormalities at the radius compared to matched controls. At the tibia, trabecular abnormalities predominated. These results suggest that in addition to previously described cortical deficits, deterioration of trabecular bone may contribute to a generalized skeletal fragility in patients with MGUS.
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Affiliation(s)
- E M Stein
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA.
| | - A Dash
- Endocrinology and Metabolic Bone Disease Service, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
| | - M Bucovsky
- Division of Endocrinology, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - S Agarwal
- Division of Endocrinology, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - J Fu
- Multiple Myeloma and Amyloidosis Service, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - S Lentzsch
- Multiple Myeloma and Amyloidosis Service, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - E Shane
- Division of Endocrinology, Columbia University College of Physicians and Surgeons, New York, NY, USA
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21
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Liu Y, Carrino JA, Dash AS, Chukir T, Do H, Bockman RS, Hughes AP, Press JM, Stein EM. Lower Spine Volumetric Bone Density in Patients With a History of Epidural Steroid Injections. J Clin Endocrinol Metab 2018; 103:3405-3410. [PMID: 29982535 DOI: 10.1210/jc.2018-00558] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 06/27/2018] [Indexed: 01/22/2023]
Abstract
CONTEXT Epidural steroid injections (ESIs) are a common, effective treatment of lumbar radiculopathy and sciatica. Although the negative skeletal effects of oral glucocorticoids are well established, little is known about the impact of ESI on bone quality. OBJECTIVE To investigate the relationship between ESI exposure and volumetric bone mineral density (vBMD) at the lumbar spine (LS) using central quantitative CT. DESIGN Retrospective study. SETTING University hospital outpatient facility. PATIENTS All patients had CT scans of the LS between 2011 and 2016. Cases received at least three ESIs prior to the date of CT (n = 121). Controls were matched for age and sex (n = 121). MAIN OUTCOME MEASURES Cumulative ESI dose was calculated. vBMD was measured at T12 through L5 using QCT Pro phantomless software (MindWays). RESULTS Mean age of subjects was 65 ± 14 years, and 49% were women. Median number of ESIs was 4 (range: 3 to 16). Median cumulative ESI dosage was 340 mg of triamcinolone or equivalent (range: 150 to 1400 mg). Compared with controls, ESI subjects had lower vBMD at each vertebral level. Higher cumulative dose was associated with lower mean vBMD at T12 to L5 (r = -0.22, P = 0.02). CONCLUSIONS Greater cumulative ESI dose was related to lower vBMD at the LS. To our knowledge, this is the first study to measure vBMD in patients treated with ESIs. Prospective studies are needed to confirm these findings and to help identify the best strategies for preventing bone loss in this population.
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Affiliation(s)
- Yi Liu
- Division of Endocrinology and Metabolic Bone Disease, Hospital for Special Surgery, New York, New York
| | - John A Carrino
- Department of Radiology, Hospital for Special Surgery, New York, New York
| | - Alexander S Dash
- Division of Endocrinology and Metabolic Bone Disease, Hospital for Special Surgery, New York, New York
| | - Tariq Chukir
- Department of Medicine, New York Presbyterian Hospital, Weill Cornell Medical College, New York, New York
| | - Huong Do
- Clinical Data Core, Healthcare Research Institute, Hospital for Special Surgery, New York, New York
| | - Richard S Bockman
- Division of Endocrinology and Metabolic Bone Disease, Hospital for Special Surgery, New York, New York
| | - Alexander P Hughes
- Department of Orthopedics, Hospital for Special Surgery, New York, New York
| | - Joel M Press
- Department of Physiatry, Hospital for Special Surgery, New York, New York
| | - Emily M Stein
- Division of Endocrinology and Metabolic Bone Disease, Hospital for Special Surgery, New York, New York
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22
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Liu Y, Dimango E, Bucovsky M, Agarwal S, Nishiyama K, Guo XE, Shane E, Stein EM. Abnormal microarchitecture and stiffness in postmenopausal women using chronic inhaled glucocorticoids. Osteoporos Int 2018; 29:2121-2127. [PMID: 29947865 PMCID: PMC6138454 DOI: 10.1007/s00198-018-4591-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 05/27/2018] [Indexed: 12/19/2022]
Abstract
UNLABELLED Postmenopausal (PM) women using inhaled glucocorticoids (IGCs) had substantial abnormalities in volumetric BMD (vBMD), microarchitecture, and stiffness using high resolution peripheral computed tomography (HRpQCT) compared to age- and race-matched controls. Abnormalities were most severe at the radius. These preliminary results suggest that there may be major, heretofore unrecognized, skeletal deficits in PM women using IGCs. INTRODUCTION While oral glucocorticoids are well recognized to have destructive skeletal effects, less is known about the effects of IGCs. The detrimental skeletal effects of IGCs may be greatest in PM women, in whom they compound negative effects of estrogen loss and aging. The goal of this study was to evaluate microarchitecture and stiffness in PM women using chronic IGCs. METHODS This case-control study compared PM women using IGCs for ≥ 6 months (n = 20) and controls matched for age and race/ethnicity (n = 60). Skeletal parameters assessed included areal BMD (aBMD) by DXA, trabecular and cortical vBMD and microarchitecture by HRpQCT of the radius and tibia, and whole bone stiffness by finite element analysis. RESULTS By DXA, mean values in both groups were in the osteopenic range; hip aBMD was lower in IGC users (P < 0.04). By HRpQCT, IGC users had lower total, cortical, and trabecular vBMD at both radius and tibia (all P < 0.05). IGC users had lower cortical thickness, lower trabecular number, greater trabecular separation and heterogeneity at the radius (all P < 0.03), and greater heterogeneity at the tibia (P < 0.04). Whole bone stiffness was lower in IGC users at radius (P < 0.03) and tended to be lower at the tibia (P = 0.09). CONCLUSIONS PM women using IGCs had substantial abnormalities in vBMD, microarchitecture, and stiffness compared to controls. These abnormalities were most severe at the radius. These preliminary results suggest that there may be major, heretofore unrecognized, skeletal deficits in PM women using IGCs.
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Affiliation(s)
- Y Liu
- Division of Endocrinology and Metabolic Bone Disease, Hospital for Special Surgery, Weill Cornell Medical College, 535 East 70th Street, New York, NY, 10021, USA
| | - E Dimango
- Division of Pulmonology, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - M Bucovsky
- Division of Endocrinology, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - S Agarwal
- Division of Endocrinology, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - K Nishiyama
- Division of Endocrinology, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - X E Guo
- Bone Bioengineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - E Shane
- Division of Endocrinology, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - E M Stein
- Division of Endocrinology and Metabolic Bone Disease, Hospital for Special Surgery, Weill Cornell Medical College, 535 East 70th Street, New York, NY, 10021, USA.
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23
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Okeke FC, Raja S, Lynch KL, Dhalla S, Nandwani M, Stein EM, Chander Roland B, Khashab MA, Saxena P, Kumbhari V, Ahuja NK, Clarke JO. What is the clinical significance of esophagogastric junction outflow obstruction? evaluation of 60 patients at a tertiary referral center. Neurogastroenterol Motil 2017; 29. [PMID: 28393437 DOI: 10.1111/nmo.13061] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 02/15/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND Esophagogastric junction (EGJ) outflow obstruction (EGJOO) is characterized by impaired EGJ relaxation with intact or weak peristalsis. Our aims were to evaluate: (i) prevalence, (ii) yield of fluoroscopy, endoscopy, and endoscopic ultrasound (EUS), (iii) outcomes, and (iv) whether this data differed based on quantitative EGJ relaxation. METHODS Studies that met criteria for EGJOO were identified. Demographics, encounters, endoscopy, radiology, treatment decisions, and outcomes were extracted. KEY RESULTS Sixty studies were identified. Dysphagia was the most common symptom. Forty patients underwent barium esophagram (BE): normal (11), hiatal hernia (20), spasm/dysmotility (17), EGJ narrowing (10), compression (2), Schatzki's ring (5), malrotation (1), gastric volvulus (1), mass (1). Esophagogastroduodenoscopy (EGD) was performed in 41 patients: normal (19), hiatal hernia (13), Schatzki's ring (6), esophagitis (3), esophageal candidiasis (3), mass (1). EUS was performed in 20 patients and was frequently normal. Twenty-two patients underwent intervention. While transient improvement was noted in the majority, persistent improvement was seen in only one of nine patients (dilatation), four of six patients (botulinum toxin), and three patients who underwent per-oral endoscopic myotomy. No patients treated with medical therapy alone had improvement in dysphagia. There was no difference in symptoms or outcomes based on quantitative EGJ relaxation. CONCLUSIONS & INFERENCES The manometric criterion EGJOO defines a heterogeneous clinical group. While BE, EGD, and EUS all provide complementary information, a significant percentage of these studies will be normal. For patients with dysphagia, outcome may depend on EGJ disruption. There were no differences in symptoms our outcomes based on quantitative EGJ relaxation.
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Affiliation(s)
- F C Okeke
- Division of Hospital Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - S Raja
- Division of Gastroenterology & Hepatology, Emory University School of Medicine, Atlanta, GA, USA
| | - K L Lynch
- Division of Gastroenterology & Hepatology, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - S Dhalla
- Division of Gastroenterology & Hepatology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - M Nandwani
- Division of Gastroenterology & Hepatology, Stanford University School of Medicine, Stanford, CA, USA
| | - E M Stein
- Division of Gastroenterology & Hepatology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - B Chander Roland
- Division of Gastroenterology & Hepatology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - M A Khashab
- Division of Gastroenterology & Hepatology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - P Saxena
- Division of Gastroenterology & Hepatology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.,Division of Gastroenterology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - V Kumbhari
- Division of Gastroenterology & Hepatology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - N K Ahuja
- Division of Gastroenterology & Hepatology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - J O Clarke
- Division of Gastroenterology & Hepatology, Stanford University School of Medicine, Stanford, CA, USA
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24
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Carrelli A, Bucovsky M, Horst R, Cremers S, Zhang C, Bessler M, Schrope B, Evanko J, Blanco J, Silverberg SJ, Stein EM. Vitamin D Storage in Adipose Tissue of Obese and Normal Weight Women. J Bone Miner Res 2017; 32:237-242. [PMID: 27542960 PMCID: PMC5577589 DOI: 10.1002/jbmr.2979] [Citation(s) in RCA: 116] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 08/08/2016] [Accepted: 08/17/2016] [Indexed: 11/10/2022]
Abstract
Although vitamin D deficiency is prevalent among obese individuals, its cause is poorly understood. Few studies have measured vitamin D concentrations in adipose of obese (OB) subjects, and none have included normal weight controls (C). The goal of this study was to investigate whether the relationship between body composition, serum 25-hydroxyvitamin D (25OHD), vitamin D in subcutaneous (SQ) and omental (OM) adipose, and total adipose stores of vitamin D differ among OB and C. Obese women undergoing bariatric surgery and normal-weight women undergoing abdominal surgery for benign gynecologic conditions were enrolled. Subjects had measurements of serum 25OHD by high-performance liquid chromatography (HPLC) and body composition by dual-energy X-ray absorptiometry (DXA). Vitamin D concentrations in SQ and OM adipose were measured by mass spectroscopy. Thirty-six women were enrolled. Serum 25OHD was similar between groups (OB 27 ± 2 versus C 26 ± 2 ng/mL; p = 0.71). Adipose vitamin D concentrations were not significantly different in either SQ (OB 34 ± 9 versus C 26 ± 12 ng/g; p = 0.63) or OM compartments (OB 51 ± 13 versus C 30 ± 18 ng/g; p = 0.37). The distribution of vitamin D between SQ and OM compartments was similar between groups. Serum 25OHD was directly related to adipose vitamin D in both groups. Total body vitamin D stores were significantly greater in OB than in C (2.3 ± 0.6 versus 0.4 ± 0.8 mg, respectively; p < 0.01). In summary, although OB had significantly greater total vitamin D stores than C, the relationship between serum 25OHD and fat vitamin D and the overall pattern of distribution of vitamin D between the OM and SQ fat compartments was similar. Our data demonstrate that obese subjects have greater adipose stores of vitamin D. They support the hypotheses that the enlarged adipose mass in obese individuals serves as a reservoir for vitamin D and that the increased amount of vitamin D required to saturate this depot may predispose obese individuals to inadequate serum 25OHD. © 2016 American Society for Bone and Mineral Research.
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Affiliation(s)
- Angela Carrelli
- Division of Endocrinology, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - Mariana Bucovsky
- Division of Endocrinology, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | | | - Serge Cremers
- Departments of Pathology & Cell Biology and Medicine, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - Chengchen Zhang
- Division of Endocrinology, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - Marc Bessler
- Division of Endocrinology, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - Beth Schrope
- Division of Endocrinology, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - John Evanko
- Division of Endocrinology, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - Jody Blanco
- Division of Endocrinology, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - Shonni J Silverberg
- Division of Endocrinology, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - Emily M Stein
- Division of Endocrinology, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY, USA
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25
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Wang J, Stein EM, Zhou B, Nishiyama KK, Yu YE, Shane E, Guo XE. Deterioration of trabecular plate-rod and cortical microarchitecture and reduced bone stiffness at distal radius and tibia in postmenopausal women with vertebral fractures. Bone 2016; 88:39-46. [PMID: 27083398 PMCID: PMC4899124 DOI: 10.1016/j.bone.2016.04.003] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 03/07/2016] [Accepted: 04/04/2016] [Indexed: 10/21/2022]
Abstract
Postmenopausal women with vertebral fractures have abnormal bone microarchitecture at the distal radius and tibia by HR-pQCT, independent of areal BMD. However, whether trabecular plate and rod microarchitecture is altered in women with vertebral fractures is unknown. This study aims to characterize the abnormalities of trabecular plate and rod microarchitecture, cortex, and bone stiffness in postmenopausal women with vertebral fractures. HR-pQCT images of distal radius and tibia were acquired from 45 women with vertebral fractures and 45 control subjects without fractures. Trabecular and cortical compartments were separated by an automatic segmentation algorithm and subjected to individual trabecula segmentation (ITS) analysis for measuring trabecular plate and rod morphology and cortical bone evaluation for measuring cortical thickness and porosity, respectively. Whole bone and trabecular bone stiffness were estimated by finite element analysis. Fracture and control subjects did not differ according to age, race, body mass index, osteoporosis risk factors, or medication use. Women with vertebral fractures had thinner cortices, and larger trabecular area compared to the control group. By ITS analysis, fracture subjects had fewer trabecular plates, less axially aligned trabeculae and less trabecular connectivity at both the radius and the tibia. Fewer trabecular rods were observed at the radius. Whole bone stiffness and trabecular bone stiffness were 18% and 22% lower in women with vertebral fractures at the radius, and 19% and 16% lower at the tibia, compared with controls. The estimated failure load of the radius and tibia were also reduced in the fracture subjects by 13% and 14%, respectively. In summary, postmenopausal women with vertebral fractures had both trabecular and cortical microstructural deterioration at the peripheral skeleton, with a preferential loss of trabecular plates and cortical thinning. These microstructural deficits translated into lower whole bone and trabecular bone stiffness at the radius and tibia. Our results suggest that abnormalities in trabecular plate and rod microstructure may be important mechanisms of vertebral fracture in postmenopausal women.
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Affiliation(s)
- Ji Wang
- Bone Bioengineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, NY, USA.
| | - Emily M Stein
- Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, NY, USA.
| | - Bin Zhou
- Bone Bioengineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, NY, USA.
| | - Kyle K Nishiyama
- Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, NY, USA.
| | - Y Eric Yu
- Bone Bioengineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, NY, USA.
| | - Elizabeth Shane
- Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, NY, USA.
| | - X Edward Guo
- Bone Bioengineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, NY, USA.
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Wang K, Sanchez-Martin M, Wang X, Knapp KM, Koche R, Vu L, Nahas MK, He J, Hadler M, Stein EM, Tallman MS, Donahue AL, Frampton GM, Lipson D, Roels S, Stephens PJ, Sanford EM, Brennan T, Otto GA, Yelensky R, Miller VA, Kharas MG, Levine RL, Ferrando A, Armstrong SA, Krivtsov AV. Patient-derived xenotransplants can recapitulate the genetic driver landscape of acute leukemias. Leukemia 2016; 31:151-158. [PMID: 27363283 PMCID: PMC5203983 DOI: 10.1038/leu.2016.166] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 05/25/2016] [Accepted: 05/31/2016] [Indexed: 12/20/2022]
Abstract
Genomic studies have identified recurrent somatic mutations in acute leukemias. However, current murine models do not sufficiently encompass the genomic complexity of human leukemias. To develop pre-clinical models, we transplanted 160 samples from patients with acute leukemia (AML, MLL, B-ALL and T-ALL) into immunodeficient mice. Of these, 119 engrafted with expected immunophenotype. Targeted sequencing of 374 genes and 265 frequently rearranged RNAs detected recurrent and novel genetic lesions in 48 paired primary tumor (PT) and patient-derived xenotransplant (PDX) samples. Overall, the frequencies of 274 somatic variant alleles correlated between PT and PDX samples, although the data were highly variable for variant alleles present at 0-10%. 17% of variant alleles were detected in either PT or PDX samples only. Based on variant allele frequency changes, 24 PT-PDX pairs were classified as concordant while the other 24 pairs showed various degree of clonal discordance. There was no correlation of clonal concordance with clinical parameters of diseases. Significantly more bone marrow samples than peripheral blood samples engrafted discordantly. These data demonstrate the utility of developing PDX banks for modeling human leukemia, and emphasize the importance of genomic profiling of PDX and patient samples to ensure concordance before performing mechanistic or therapeutic studies.
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Affiliation(s)
- K Wang
- Foundation Medicine, Cambridge, MA, USA
| | - M Sanchez-Martin
- Institute for Cancer Genetics Columbia University, New York, NY, USA
| | - X Wang
- Center for Epigenetic Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - K M Knapp
- Center for Epigenetic Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - R Koche
- Center for Epigenetic Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - L Vu
- Center for Epigenetic Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - M K Nahas
- Foundation Medicine, Cambridge, MA, USA
| | - J He
- Foundation Medicine, Cambridge, MA, USA
| | - M Hadler
- Foundation Medicine, Cambridge, MA, USA
| | - E M Stein
- Center for Epigenetic Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - M S Tallman
- Center for Epigenetic Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | | | | | - D Lipson
- Foundation Medicine, Cambridge, MA, USA
| | - S Roels
- Foundation Medicine, Cambridge, MA, USA
| | | | | | - T Brennan
- Foundation Medicine, Cambridge, MA, USA
| | - G A Otto
- Foundation Medicine, Cambridge, MA, USA
| | | | | | - M G Kharas
- Center for Epigenetic Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - R L Levine
- Center for Epigenetic Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - A Ferrando
- Institute for Cancer Genetics Columbia University, New York, NY, USA
| | - S A Armstrong
- Center for Epigenetic Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - A V Krivtsov
- Center for Epigenetic Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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Abstract
The skeletal effects of inhaled glucocorticoids are poorly understood. Children with asthma treated with inhaled glucocorticoids have lower growth velocity, bone density, and adult height. Studies of adults with asthma have reported variable effects on BMD, although prospective studies have demonstrated bone loss after initiation of inhaled glucocorticoids in premenopausal women. There is a dose-response relationship between inhaled glucocorticoids and fracture risk in asthmatics; the risk of vertebral and non-vertebral fractures is greater in subjects treated with the highest doses in the majority of studies. Patients with COPD have lower BMD and higher fracture rates compared to controls, however, the majority of studies have not found an additional detrimental effect of inhaled glucocorticoids on bone. While the evidence is not conclusive, it supports using the lowest possible dose of inhaled glucocorticoids to treat patients with asthma and COPD and highlights the need for further research on this topic.
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Affiliation(s)
| | - Emily M. Stein
- Division of Endocrinology, Columbia University College of Physicians & Surgeons, 630 West 168 Street, PH8 West 864, New York, NY 10032, Phone (212) 305-0220, Fax (212) 305-6486
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Boutroy S, Khosla S, Sornay-Rendu E, Zanchetta MB, McMahon DJ, Zhang CA, Chapurlat RD, Zanchetta J, Stein EM, Bogado C, Majumdar S, Burghardt AJ, Shane E. Microarchitecture and Peripheral BMD are Impaired in Postmenopausal White Women With Fracture Independently of Total Hip T-Score: An International Multicenter Study. J Bone Miner Res 2016; 31:1158-66. [PMID: 26818785 PMCID: PMC4891284 DOI: 10.1002/jbmr.2796] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 12/23/2015] [Accepted: 12/29/2015] [Indexed: 11/06/2022]
Abstract
Because single-center studies have reported conflicting associations between microarchitecture and fracture prevalence, we included high-resolution peripheral quantitative computed tomography (HR-pQCT) data from five centers worldwide into a large multicenter analysis of postmenopausal women with and without fracture. Volumetric BMD (vBMD) and microarchitecture were assessed at the distal radius and tibia in 1379 white postmenopausal women (age 67 ± 8 years); 470 (34%) had at least one fracture including 349 with a major fragility fracture. Age, height, weight, and total hip T-score differed across centers and were employed as covariates in analyses. Women with fracture had higher BMI, were older, and had lower total hip T-score, but lumbar spine T-score was similar between groups. At the radius, total and trabecular vBMD and cortical thickness were significantly lower in fractured women in three out of five centers, and trabecular number in two centers. Similar results were found at the tibia. When data from five centers were combined, however, women with fracture had significantly lower total, trabecular, and cortical vBMD (2% to 7%), lower trabecular number (4% to 5%), and thinner cortices (5% to 6%) than women without fracture after adjustment for covariates. Results were similar at the radius and tibia. Similar results were observed with analysis restricted to major fragility fracture, vertebral and hip fractures, and peripheral fracture (at the radius). When focusing on osteopenic women, each SD decrease of total and trabecular vBMD was associated with a significantly increased risk of major fragility fracture (OR = 1.55 to 1.88, p < 0.01) after adjustment for covariates. Moreover, trabecular architecture modestly improved fracture discrimination beyond peripheral total vBMD. In conclusion, we observed differences by center in the magnitude of fracture/nonfracture differences at both the distal radius and tibia. However, when data were pooled across centers and the sample size increased, we observed significant and consistent deficits in vBMD and microarchitecture independent of total hip T-score in all postmenopausal white women with fracture and in the subgroup of osteopenic women, compared to women who never had a fracture. © 2016 American Society for Bone and Mineral Research.
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Affiliation(s)
- Stephanie Boutroy
- College of Physicians and Surgeons, Columbia University Medical Center, New York, NY, USA.,INSERM UMR1033, Université de Lyon, Hospices Civils de Lyon, Lyon, France
| | - Sundeep Khosla
- Endocrine Research Unit, College of Medicine, Mayo Clinic, Rochester, MN, USA
| | | | - Maria Belen Zanchetta
- Instituto de Diagnóstico e Investigaciones Metabolicas (IDIM), Universidad del Salvador, Buenos Aires, Argentina
| | - Donald J McMahon
- College of Physicians and Surgeons, Columbia University Medical Center, New York, NY, USA
| | - Chiyuan A Zhang
- College of Physicians and Surgeons, Columbia University Medical Center, New York, NY, USA
| | - Roland D Chapurlat
- INSERM UMR1033, Université de Lyon, Hospices Civils de Lyon, Lyon, France
| | - Jose Zanchetta
- Instituto de Diagnóstico e Investigaciones Metabolicas (IDIM), Universidad del Salvador, Buenos Aires, Argentina
| | - Emily M Stein
- College of Physicians and Surgeons, Columbia University Medical Center, New York, NY, USA
| | - Cesar Bogado
- Instituto de Diagnóstico e Investigaciones Metabolicas (IDIM), Universidad del Salvador, Buenos Aires, Argentina
| | - Sharmila Majumdar
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA, USA
| | - Andrew J Burghardt
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA, USA
| | - Elizabeth Shane
- College of Physicians and Surgeons, Columbia University Medical Center, New York, NY, USA
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Cohen A, Shen W, Dempster DW, Zhou H, Recker RR, Lappe JM, Kepley A, Kamanda-Kosseh M, Bucovsky M, Stein EM, Nickolas TL, Shane E. Marrow adiposity assessed on transiliac crest biopsy samples correlates with noninvasive measurement of marrow adiposity by proton magnetic resonance spectroscopy ((1)H-MRS) at the spine but not the femur. Osteoporos Int 2015; 26:2471-8. [PMID: 25986383 PMCID: PMC5206911 DOI: 10.1007/s00198-015-3161-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Accepted: 04/29/2015] [Indexed: 01/29/2023]
Abstract
UNLABELLED Measurement of marrow fat (MF) is important to the study of bone fragility. We measured MF on iliac biopsies and by spine/hip magnetic resonance spectroscopy in the same subjects. Noninvasively assessed spine MF and histomorphometrically assessed MF correlated well. MF quantity and relationships with bone volume differed by measurement site. INTRODUCTION Excess marrow fat has been implicated in the pathogenesis of osteoporosis in several populations. In the bone marrow, adipocytes and osteoblasts share a common precursor and are reciprocally regulated. In addition, adipocytes may secrete toxic fatty acids and adipokines that adversely affect osteoblasts. Measurement of marrow fat is important to the study of mechanisms of bone fragility. Marrow fat can be quantified on bone biopsy samples by histomorphometry and noninvasively by proton magnetic resonance spectroscopy ((1)H-MRS). In this study, we evaluate relationships between marrow fat assessed using both methods in the same subjects for the first time. METHODS Sixteen premenopausal women, nine with idiopathic osteoporosis and seven normal controls, had marrow fat measured at the iliac crest by bone biopsy and at the lumbar spine (L3) and proximal femur by (1)H-MRS. RESULTS At L3, fat fraction by (1)H-MRS correlated directly and significantly with marrow fat variables on iliac crest biopsies (r = 0.5-0.8). In contrast, there were no significant correlations between fat fraction at the femur and marrow fat on biopsies. Marrow fat quantity (%) was greater at the femur than at L3 and the iliac crest and correlated inversely with total hip and femoral neck BMD by DXA. CONCLUSIONS In summary, measurement of marrow fat in transiliac crest biopsies correlates with marrow fat at the spine but not the proximal femur by (1)H-MRS. There were site-specific differences in marrow fat quantity and in the relationships between marrow fat and bone volume.
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Affiliation(s)
- A Cohen
- Department of Medicine, College of Physicians and Surgeons, Columbia University, PH8-864, 630 West 168th Street, New York, NY, 10032, USA.
| | - W Shen
- Department of Medicine, College of Physicians and Surgeons, Columbia University, PH8-864, 630 West 168th Street, New York, NY, 10032, USA
| | | | - H Zhou
- Helen Hayes Hospital, West Haverstraw, NY, USA
| | | | - J M Lappe
- Creighton University, Omaha, NE, USA
| | - A Kepley
- Department of Medicine, College of Physicians and Surgeons, Columbia University, PH8-864, 630 West 168th Street, New York, NY, 10032, USA
| | - M Kamanda-Kosseh
- Department of Medicine, College of Physicians and Surgeons, Columbia University, PH8-864, 630 West 168th Street, New York, NY, 10032, USA
| | - M Bucovsky
- Department of Medicine, College of Physicians and Surgeons, Columbia University, PH8-864, 630 West 168th Street, New York, NY, 10032, USA
| | - E M Stein
- Department of Medicine, College of Physicians and Surgeons, Columbia University, PH8-864, 630 West 168th Street, New York, NY, 10032, USA
| | - T L Nickolas
- Department of Medicine, College of Physicians and Surgeons, Columbia University, PH8-864, 630 West 168th Street, New York, NY, 10032, USA
| | - E Shane
- Department of Medicine, College of Physicians and Surgeons, Columbia University, PH8-864, 630 West 168th Street, New York, NY, 10032, USA
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Gregory NS, Kumar R, Stein EM, Alexander E, Christos P, Bockman RS, Rodman JS. POTASSIUM CITRATE DECREASES BONE RESORPTION IN POSTMENOPAUSAL WOMEN WITH OSTEOPENIA: A RANDOMIZED, DOUBLE-BLIND CLINICAL TRIAL. Endocr Pract 2015; 21:1380-6. [PMID: 26401577 DOI: 10.4158/ep15738.or] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE Diets rich in animal protein, such as the typical American diet, are thought to create a high acid load. An association between acid load and bone loss has led to the idea that providing positive alkaline salt therapy could have beneficial effects on bone metabolism. The objective of this study was to investigate the effects of potassium citrate (K-citrate), 40 mEq daily, over 1 year on bone resorption and formation. METHODS A randomized, double-blind, placebo-controlled trial of 83 women with postmenopausal osteopenia. Levels of bone turnover markers, specifically urinary N-telopeptide of collagen type 1 (u-NTX), amino-terminal propeptide of type 1 procollagen (P1NP), bone-specific alkaline phosphatase (BSAP), and osteocalcin (OC) were compared. Changes in bone mineral density (BMD) were also examined. RESULTS K-citrate decreased both u-NTX (P = .005) and serum P1NP (P<.001) starting at month 1 and continuing through month 12. No significant change was seen in BSAP or OC. No significant change was seen in lumbar or hip BMD between the 2 groups. CONCLUSION In women with postmenopausal osteopenia, treatment with K-citrate for 1 year resulted in a significant decrease in markers of turnover. The effect on markers of bone formation was not consistent. K-citrate may serve as a potential treatment for bone loss that is well tolerated and without any significant known long-term consequences.
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Stein EM, Rogers H, Leib A, McMahon DJ, Young P, Nishiyama K, Guo XE, Lewis S, Green PH, Shane E. Abnormal Skeletal Strength and Microarchitecture in Women With Celiac Disease. J Clin Endocrinol Metab 2015; 100:2347-53. [PMID: 25867815 PMCID: PMC4454795 DOI: 10.1210/jc.2015-1392] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
CONTEXT Osteoporosis is often a presenting sign of celiac disease (CD). Whether skeletal fragility in CD is associated with microarchitectural abnormalities is not known. OBJECTIVE The objective of the study was to evaluate microarchitecture and biomechanical properties of bone in CD. DESIGN This was a case-control study. SETTING The study was conducted at a university hospital outpatient facility. PATIENTS Patients included premenopausal women with newly diagnosed CD (n = 33) and healthy controls (n = 33). MAIN OUTCOME MEASURES Areal bone mineral density by dual-energy x-ray absorptiometry was measured as was trabecular and cortical volumetric bone mineral density (vBMD) and microarchitecture by high-resolution peripheral computed tomography of the distal radius and tibia. Whole-bone stiffness estimated by finite element analysis. PTH, 25-hydroxyvitamin D, and bone turnover markers were also measured. RESULTS Groups had similar age, race, and body mass index. Both groups had sufficient 25-hydroxyvitamin D and normal calcium and PTH. Areal bone mineral density was lower in CD. By high-resolution peripheral computed tomography, CD had lower trabecular vBMD, fewer, more widely, and irregularly spaced trabeculae at both the radius and tibia (8%-33%). At the tibia, they also had lower total density (8%) and thinner cortices (10%). Whole-bone stiffness and failure load were lower (11%-21%) in CD at both sites. Biomechanical deficits were associated with trabecular abnormalities. CONCLUSIONS Women with CD had abnormal vBMD and microarchitecture at both the radius and tibia. Trabecular bone was preferentially affected. These deficits were associated with lower estimates of skeletal strength. These findings suggest a potential structural mechanism for skeletal fragility in CD and support further research into the pathogenesis of fracture in this population.
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Affiliation(s)
- Emily M Stein
- Divisions of Endocrinology and Gastroenterology (E.M.S., H.R., A.L., D.J.M., P.Y., K.N.,S.L., P.H.G., E.S.), Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York 10032; and Bone Bioengineering Laboratory (X.E.G.), Department of Biomedical Engineering, Columbia University, New York, New York 10027
| | - Halley Rogers
- Divisions of Endocrinology and Gastroenterology (E.M.S., H.R., A.L., D.J.M., P.Y., K.N.,S.L., P.H.G., E.S.), Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York 10032; and Bone Bioengineering Laboratory (X.E.G.), Department of Biomedical Engineering, Columbia University, New York, New York 10027
| | - Alexa Leib
- Divisions of Endocrinology and Gastroenterology (E.M.S., H.R., A.L., D.J.M., P.Y., K.N.,S.L., P.H.G., E.S.), Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York 10032; and Bone Bioengineering Laboratory (X.E.G.), Department of Biomedical Engineering, Columbia University, New York, New York 10027
| | - Donald J McMahon
- Divisions of Endocrinology and Gastroenterology (E.M.S., H.R., A.L., D.J.M., P.Y., K.N.,S.L., P.H.G., E.S.), Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York 10032; and Bone Bioengineering Laboratory (X.E.G.), Department of Biomedical Engineering, Columbia University, New York, New York 10027
| | - Polly Young
- Divisions of Endocrinology and Gastroenterology (E.M.S., H.R., A.L., D.J.M., P.Y., K.N.,S.L., P.H.G., E.S.), Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York 10032; and Bone Bioengineering Laboratory (X.E.G.), Department of Biomedical Engineering, Columbia University, New York, New York 10027
| | - Kyle Nishiyama
- Divisions of Endocrinology and Gastroenterology (E.M.S., H.R., A.L., D.J.M., P.Y., K.N.,S.L., P.H.G., E.S.), Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York 10032; and Bone Bioengineering Laboratory (X.E.G.), Department of Biomedical Engineering, Columbia University, New York, New York 10027
| | - X Edward Guo
- Divisions of Endocrinology and Gastroenterology (E.M.S., H.R., A.L., D.J.M., P.Y., K.N.,S.L., P.H.G., E.S.), Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York 10032; and Bone Bioengineering Laboratory (X.E.G.), Department of Biomedical Engineering, Columbia University, New York, New York 10027
| | - Suzanne Lewis
- Divisions of Endocrinology and Gastroenterology (E.M.S., H.R., A.L., D.J.M., P.Y., K.N.,S.L., P.H.G., E.S.), Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York 10032; and Bone Bioengineering Laboratory (X.E.G.), Department of Biomedical Engineering, Columbia University, New York, New York 10027
| | - Peter H Green
- Divisions of Endocrinology and Gastroenterology (E.M.S., H.R., A.L., D.J.M., P.Y., K.N.,S.L., P.H.G., E.S.), Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York 10032; and Bone Bioengineering Laboratory (X.E.G.), Department of Biomedical Engineering, Columbia University, New York, New York 10027
| | - Elizabeth Shane
- Divisions of Endocrinology and Gastroenterology (E.M.S., H.R., A.L., D.J.M., P.Y., K.N.,S.L., P.H.G., E.S.), Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York 10032; and Bone Bioengineering Laboratory (X.E.G.), Department of Biomedical Engineering, Columbia University, New York, New York 10027
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Lynch KL, Dhalla S, Chedid V, Ravich WJ, Stein EM, Montgomery EA, Bochner BS, Clarke JO. Gender is a determinative factor in the initial clinical presentation of eosinophilic esophagitis. Dis Esophagus 2015; 29:174-8. [PMID: 25626069 DOI: 10.1111/dote.12307] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Eosinophilic esophagitis (EoE) is a chronic, immune-mediated disease resulting in symptoms of esophageal dysmotility. Abnormalities include dysphagia, food impaction and reflux. Although men appear to comprise a majority of the EoE population, few studies have directly assessed gender-associated clinical differences. The aim of this study is to identify the effect of gender on the initial clinical presentation of adult-onset EoE patients. We reviewed our electronic medical record database from January 2008 to December 2011 for adults diagnosed with EoE per the 2011 updated consensus guidelines. Patient demographics, presenting symptoms, endoscopy findings and complications were recorded. Proportions were compared using chi-squared analysis, and means were compared using the Student's t-test. A total of 162 patients met the inclusion criteria and 71 (44%) were women. Women were more likely to report chest pain (P = 0.03) and heartburn (P = 0.06), whereas men more commonly reported dysphagia (P = 0.04) and a history of food impaction (P = 0.05). Endoscopic findings were similar between groups. No patients suffered esophageal perforations. These data suggest that men report more fibrostenotic symptoms and women report more inflammatory symptoms at the time of diagnosis. There was no difference in endoscopic findings between genders. This is one of the only reviews comparing differences in clinical presentation, endoscopic findings and complications between gender for EoE. The current recommended guidelines state that any patient with symptoms of esophageal dysfunction should be biopsied for EoE. Our findings support biopsying patients with typical and atypical symptoms of dysmotility including heartburn and chest pain.
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Affiliation(s)
- K L Lynch
- Division of Gastroenterology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - S Dhalla
- Division of Gastroenterology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - V Chedid
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - W J Ravich
- Division of Gastroenterology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - E M Stein
- Division of Gastroenterology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - E A Montgomery
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - B S Bochner
- Division of Allergy & Immunology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - J O Clarke
- Division of Gastroenterology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Sutter S, Nishiyama KK, Kepley A, Zhou B, Wang J, McMahon DJ, Guo XE, Stein EM. Abnormalities in cortical bone, trabecular plates, and stiffness in postmenopausal women treated with glucocorticoids. J Clin Endocrinol Metab 2014; 99:4231-40. [PMID: 25127089 PMCID: PMC4223438 DOI: 10.1210/jc.2014-2177] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT The mechanisms by which glucocorticoids (GCs) increase skeletal fragility are not well understood. OBJECTIVE The objective of the study was to evaluate the microarchitecture, trabecular morphology, and biomechanical properties of bone in postmenopausal women treated with GCs. DESIGN This was a case-control study. SETTING The study was conducted at a university hospital outpatient facility. PATIENTS Postmenopausal women treated with oral GCs for longer than 3 months (n = 30) and age/race-matched controls (n = 60) participated in the study. MAIN OUTCOME MEASURES Areal bone mineral density aBMD (BMD) by dual-energy x-ray absorptiometry (DXA) was measured. Trabecular and cortical volumetric BMD (vBMD) and microarchitecture by high-resolution peripheral computed tomography of the distal radius and tibia were also measured. Whole-bone stiffness was estimated by finite element analysis. A novel technique, individual trabecula segmentation, was used to evaluate trabecular type (as plate or rod), orientation, and connectivity. RESULTS DXA T-scores did not differ significantly at any site. GC subjects had significantly lower total, cortical, and trabecular vBMD and thinner cortices, fewer, thinner, more widely, and irregularly spaced trabeculae. They had fewer trabecular plates, fewer axially aligned trabeculae, and lower trabecular connectivity. Differences ranged from 4% to 65% for these trabecular measures and 5% to 17% for the cortical measures. Whole-bone stiffness was significantly lower (11%-16%) in GC subjects. Markers of bone formation (osteocalcin and amino-terminal propeptide of type I procollagen) and resorption (C-telopeptide) were lower in the GC subjects. CONCLUSIONS Despite similar areal BMD by DXA, GC-treated women had abnormal cortical and trabecular vBMD and microarchitecture at both the radius and tibia, including fewer trabecular plates, a less axially aligned trabecular network, lower trabecular connectivity, thinner cortices, and lower whole-bone stiffness. Further research into these abnormalities as mechanisms for fracture in GC-treated women is warranted.
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Affiliation(s)
- Stephanie Sutter
- Department of Medicine (S.S., K.K.N., A.K., D.J.M., E.M.S.), Columbia University College of Physicians and Surgeons, New York, New York 10032; and Bone Bioengineering Laboratory (B.Z., J.W., X.E.G.), Department of Biomedical Engineering, Columbia University, New York, New York 10027
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Zhou B, Wang J, Stein EM, Zhang Z, Nishiyama KK, Zhang CA, Nickolas TL, Shane E, Guo XE. Bone density, microarchitecture and stiffness in Caucasian and Caribbean Hispanic postmenopausal American women. Bone Res 2014; 2:14016. [PMID: 26273525 PMCID: PMC4472134 DOI: 10.1038/boneres.2014.16] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Revised: 07/30/2014] [Accepted: 07/30/2014] [Indexed: 12/24/2022] Open
Abstract
Hispanic Americans of Caribbean origin are a fast-growing subset of the US population, but there are no studies on bone density, microstructure and biomechanical integrity in this minority group. In this study, we aimed to compare Caucasian and Caribbean Hispanic postmenopausal American women with respect to these characteristics. Thirty-three Caribbean Hispanics were age-matched to thirty-three Caucasian postmenopausal women. At the lumbar spine, the Hispanic women had significantly lower areal bone mineral density (aBMD). At the radius by high-resolution peripheral quantitative computed tomography (HR-pQCT), there were minimal differences between Hispanic and Caucasian women. At the tibia, Hispanic women had lower trabecular volumetric bone density and trabecular number, and higher trabecular separation. Individual trabecula segmentation (ITS) analyses indicated that at the tibia, Hispanic women not only had significantly lower bone volume fraction, but also had significantly lower rod bone volume fraction, plate trabecular number, rod trabecular number and lower plate–plate, plate–rod and rod–rod junction densities compared to Caucasian women. The differences in bone quantity and quality contributed to lower whole bone stiffness at the radius, and both whole bone and trabecular bone stiffness at the tibia in Hispanic women. In conclusion, Hispanic women had poorer bone mechanical and microarchitectural properties than Caucasian women, especially at the load-bearing distal tibia.
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Affiliation(s)
- Bin Zhou
- Bone Bioengineering Laboratory, Department of Biomedical Engineering, Columbia University , New York, USA
| | - Ji Wang
- Bone Bioengineering Laboratory, Department of Biomedical Engineering, Columbia University , New York, USA
| | - Emily M Stein
- Division of Endocrinology, Department of Medicine, Columbia University , New York, USA
| | - Zhendong Zhang
- Bone Bioengineering Laboratory, Department of Biomedical Engineering, Columbia University , New York, USA ; Department of Orthopedic Surgery, First Affiliated Hospital, School of Medicine Shihezi University , Shihezi, Xinjiang, China
| | - Kyle K Nishiyama
- Division of Endocrinology, Department of Medicine, Columbia University , New York, USA
| | - Chiyuan A Zhang
- Division of Endocrinology, Department of Medicine, Columbia University , New York, USA
| | - Thomas L Nickolas
- Division of Endocrinology, Department of Medicine, Columbia University , New York, USA
| | - Elizabeth Shane
- Division of Endocrinology, Department of Medicine, Columbia University , New York, USA
| | - X Edward Guo
- Bone Bioengineering Laboratory, Department of Biomedical Engineering, Columbia University , New York, USA
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Abstract
Bariatric surgery is an effective and increasingly common treatment for severe obesity and its many comorbidities. The side-effects of bariatric surgery can include detrimental effects on bone and mineral metabolism. Bone disease in patients who have had bariatric surgery is affected by preoperative abnormalities in bone and mineral metabolism related to severe obesity. Changes that arise after bariatric surgery are specific to procedure type: the most pronounced abnormalities in calciotropic hormones and bone loss are noted after procedures that result in the most malabsorption. The most consistent site for bone loss after all bariatric procedures is at the hip. There are limitations of dual-energy x-ray absorptiometry technology in this population, including artefact introduced by adipose tissue itself. Bone loss after bariatric surgery is probably multifactorial. Proposed mechanisms include skeletal unloading, abnormalities in calciotropic hormones, and changes in gut hormones. Few data for fracture risk in the bariatric population are available, and this is a crucial area for additional research. Treatment should be geared toward correction of nutritional deficiencies and study of bone mineral density in high-risk patients. We explore the skeletal response to bariatric surgery, potential mechanisms for changes, and strategies for management.
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Affiliation(s)
- Emily M Stein
- Columbia University College of Physicians and Surgeons, Columbia University, New York 10032, USA.
| | - Shonni J Silverberg
- Columbia University College of Physicians and Surgeons, Columbia University, New York 10032, USA
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Stein EM, Kepley A, Walker M, Nickolas TL, Nishiyama K, Zhou B, Liu XS, McMahon DJ, Zhang C, Boutroy S, Cosman F, Nieves J, Guo XE, Shane E. Skeletal structure in postmenopausal women with osteopenia and fractures is characterized by abnormal trabecular plates and cortical thinning. J Bone Miner Res 2014; 29:1101-9. [PMID: 24877245 PMCID: PMC4084559 DOI: 10.1002/jbmr.2144] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The majority of fragility fractures occur in women with osteopenia rather than osteoporosis as determined by dual‐energy X‐ray absorptiometry (DXA). However, it is difficult to identify which women with osteopenia are at greatest risk. We performed this study to determine whether osteopenic women with and without fractures had differences in trabecular morphology and biomechanical properties of bone. We hypothesized that women with fractures would have fewer trabecular plates, less trabecular connectivity, and lower stiffness. We enrolled 117 postmenopausal women with osteopenia by DXA (mean age 66 years; 58 with fragility fractures and 59 nonfractured controls). All had areal bone mineral density (aBMD) measured by DXA. Trabecular and cortical volumetric bone mineral density (vBMD), trabecular microarchitecture, and cortical porosity were measured by high‐resolution peripheral computed tomography (HR‐pQCT) of the distal radius and tibia. HR‐pQCT scans were subjected to finite element analysis to estimate whole bone stiffness and individual trabecula segmentation (ITS) to evaluate trabecular type (as plate or rod), orientation, and connectivity.Groups had similar age, race, body mass index (BMI), and mean T‐scores. Fracture subjects had lower cortical and trabecular vBMD, thinner cortices, and thinner, more widely separated trabeculae. By ITS, fracture subjects had fewer trabecular plates, less axially aligned trabeculae, and less trabecular connectivity. Whole bone stiffness was lower in women with fractures. Cortical porosity did not differ. Differences in cortical bone were found at both sites, whereas trabecular differences were more pronounced at the radius.In summary, postmenopausal women with osteopenia and fractures had lower cortical and trabecular vBMD; thinner, more widely separated and rodlike trabecular structure; less trabecular connectivity; and lower whole bone stiffness compared with controls,despite similar aBMD by DXA. Our results suggest that in addition to trabecular and cortical bone loss, changes in plate and rod structure may be important mechanisms of fracture in postmenopausal women with osteopenia.
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Affiliation(s)
- Emily M Stein
- Department of Medicine; Columbia University College of Physicians and Surgeons; New York NY USA
| | - Anna Kepley
- Department of Medicine; Columbia University College of Physicians and Surgeons; New York NY USA
| | - Marcella Walker
- Department of Medicine; Columbia University College of Physicians and Surgeons; New York NY USA
| | - Thomas L Nickolas
- Department of Medicine; Columbia University College of Physicians and Surgeons; New York NY USA
| | - Kyle Nishiyama
- Department of Medicine; Columbia University College of Physicians and Surgeons; New York NY USA
| | - Bin Zhou
- Bone Bioengineering Laboratory, Department of Biomedical Engineering; Columbia University; New York NY USA
| | - X Sherry Liu
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery; University of Pennsylvania; Philadelphia PA USA
| | - Donald J McMahon
- Department of Medicine; Columbia University College of Physicians and Surgeons; New York NY USA
| | - Chiyuan Zhang
- Department of Medicine; Columbia University College of Physicians and Surgeons; New York NY USA
| | | | - Felicia Cosman
- Department of Medicine; Columbia University College of Physicians and Surgeons; New York NY USA
- Helen Hayes Hospital; West Haverstraw; NY USA
| | - Jeri Nieves
- Department of Medicine; Columbia University College of Physicians and Surgeons; New York NY USA
- Helen Hayes Hospital; West Haverstraw; NY USA
| | - X Edward Guo
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery; University of Pennsylvania; Philadelphia PA USA
| | - Elizabeth Shane
- Department of Medicine; Columbia University College of Physicians and Surgeons; New York NY USA
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Nickolas TL, Stein EM, Dworakowski E, Nishiyama KK, Komandah-Kosseh M, Zhang CA, McMahon DJ, Liu XS, Boutroy S, Cremers S, Shane E. Rapid cortical bone loss in patients with chronic kidney disease. J Bone Miner Res 2013; 28:1811-20. [PMID: 23456850 PMCID: PMC3720694 DOI: 10.1002/jbmr.1916] [Citation(s) in RCA: 207] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Revised: 02/06/2013] [Accepted: 02/13/2013] [Indexed: 11/12/2022]
Abstract
Chronic kidney disease (CKD) patients may have high rates of bone loss and fractures, but microarchitectural and biochemical mechanisms of bone loss in CKD patients have not been fully described. In this longitudinal study of 53 patients with CKD Stages 2 to 5D, we used dual-energy X-ray absorptiometry (DXA), high-resolution peripheral quantitative computed tomography (HRpQCT), and biochemical markers of bone metabolism to elucidate effects of CKD on the skeleton. Median follow-up was 1.5 years (range 0.9 to 4.3 years); bone changes were annualized and compared with baseline. By DXA, there were significant declines in areal bone mineral density (BMD) of the total hip and ultradistal radius: -1.3% (95% confidence interval [CI] -2.1 to -0.6) and -2.4% (95% CI -4.0 to -0.9), respectively. By HRpQCT at the distal radius, there were significant declines in cortical area, density, and thickness and increases in porosity: -2.9% (95% CI -3.7 to -2.2), -1.3% (95% CI -1.6 to -0.6), -2.8% (95% CI -3.6 to -1.9), and +4.2% (95% CI 2.0 to 6.4), respectively. Radius trabecular area increased significantly: +0.4% (95% CI 0.2 to 0.6), without significant changes in trabecular density or microarchitecture. Elevated time-averaged levels of parathyroid hormone (PTH) and bone turnover markers predicted cortical deterioration. Higher levels of serum 25-hydroxyvitamin D predicted decreases in trabecular network heterogeneity. These data suggest that significant cortical loss occurs with CKD, which is mediated by hyperparathyroidism and elevated turnover. Future investigations are required to determine whether these cortical losses can be attenuated by treatments that reduce PTH levels and remodeling rates.
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Affiliation(s)
- Thomas L Nickolas
- Columbia University Medical Center, Department of Medicine, Division of Nephrology, New York, NY, USA.
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Cohen A, Dempster DW, Recker RR, Lappe JM, Zhou H, Zwahlen A, Müller R, Zhao B, Guo X, Lang T, Saeed I, Liu XS, Guo XE, Cremers S, Rosen CJ, Stein EM, Nickolas TL, McMahon DJ, Young P, Shane E. Abdominal fat is associated with lower bone formation and inferior bone quality in healthy premenopausal women: a transiliac bone biopsy study. J Clin Endocrinol Metab 2013; 98:2562-72. [PMID: 23515452 PMCID: PMC3667251 DOI: 10.1210/jc.2013-1047] [Citation(s) in RCA: 147] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
CONTEXT The conventional view that obesity is beneficial for bone strength has recently been challenged by studies that link obesity, particularly visceral obesity, to low bone mass and fractures. It is controversial whether effects of obesity on bone are mediated by increased bone resorption or decreased bone formation. OBJECTIVE The objective of the study was to evaluate bone microarchitecture and remodeling in healthy premenopausal women of varying weights. DESIGN We measured bone density and trunk fat by dual-energy x-ray absorptiometry in 40 women and by computed tomography in a subset. Bone microarchitecture, stiffness, remodeling, and marrow fat were assessed in labeled transiliac bone biopsies. RESULTS Body mass index (BMI) ranged from 20.1 to 39.2 kg/m(2). Dual-energy x-ray absorptiometry-trunk fat was directly associated with BMI (r = 0.78, P < .001) and visceral fat by computed tomography (r = 0.79, P < .001). Compared with women in the lowest tertile of trunk fat, those in the highest tertile had inferior bone quality: lower trabecular bone volume (20.4 ± 5.8 vs 29.1 ± 6.1%; P = .001) and stiffness (433 ± 264 vs 782 ± 349 MPa; P = .01) and higher cortical porosity (8.8 ± 3.5 vs 6.3 ± 2.4%; P = .049). Bone formation rate (0.004 ± 0.002 vs 0.011 ± 0.008 mm(2)/mm · year; P = .006) was 64% lower in the highest tertile. Trunk fat was inversely associated with trabecular bone volume (r = -0.50; P < .01) and bone formation rate (r = -0.50; P < .001). The relationship between trunk fat and bone volume remained significant after controlling for age and BMI. CONCLUSIONS At the tissue level, premenopausal women with more central adiposity had inferior bone quality and stiffness and markedly lower bone formation. Given the rising levels of obesity, these observations require further investigation.
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Affiliation(s)
- Adi Cohen
- Department of Medicine, Columbia University, College of Physicians and Surgeons, PH8-864 630 West 168th Street, New York, New York 10032, USA.
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Stein EM, Silva BC, Boutroy S, Zhou B, Wang J, Udesky J, Zhang C, McMahon DJ, Romano M, Dworakowski E, Costa AG, Cusano N, Irani D, Cremers S, Shane E, Guo XE, Bilezikian JP. Primary hyperparathyroidism is associated with abnormal cortical and trabecular microstructure and reduced bone stiffness in postmenopausal women. J Bone Miner Res 2013; 28:1029-40. [PMID: 23225022 PMCID: PMC3631282 DOI: 10.1002/jbmr.1841] [Citation(s) in RCA: 130] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Revised: 11/09/2012] [Accepted: 11/26/2012] [Indexed: 12/24/2022]
Abstract
Typically, in the milder form of primary hyperparathyroidism (PHPT), now seen in most countries, bone density by dual-energy X-ray absorptiometry (DXA) and detailed analyses of iliac crest bone biopsies by histomorphometry and micro-computed tomography (µCT) show detrimental effects in cortical bone, whereas the trabecular site (lumbar spine by DXA) and the trabecular compartment (by bone biopsy) appear to be relatively well preserved. Despite these findings, fracture risk at both vertebral and nonvertebral sites is increased in PHPT. Emerging technologies, such as high-resolution peripheral quantitative computed tomography (HRpQCT), may provide additional insight into microstructural features at sites such as the forearm and tibia that have heretofore not been easily accessible. Using HRpQCT, we determined cortical and trabecular microstructure at the radius and tibia in 51 postmenopausal women with PHPT and 120 controls. Individual trabecula segmentation (ITS) and micro-finite element (µFE) analyses of the HRpQCT images were also performed to further understand how the abnormalities seen by HRpQCT might translate into effects on bone strength. Women with PHPT showed, at both sites, decreased volumetric densities at trabecular and cortical compartments, thinner cortices, and more widely spaced and heterogeneously distributed trabeculae. At the radius, trabeculae were thinner and fewer in PHPT. The radius was affected to a greater extent in the trabecular compartment than the tibia. ITS analyses revealed, at both sites, that plate-like trabeculae were depleted, with a resultant reduction in the plate/rod ratio. Microarchitectural abnormalities were evident by decreased plate-rod and plate-plate junctions at the radius and tibia, and rod-rod junctions at the radius. These trabecular and cortical abnormalities resulted in decreased whole-bone stiffness and trabecular stiffness. These results provide evidence that in PHPT, microstructural abnormalities are pervasive and not limited to the cortical compartment, which may help to account for increased global fracture risk in PHPT.
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Affiliation(s)
- Emily M Stein
- Metabolic Bone Diseases Unit, Division of Endocrinology, Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
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Cohen A, Stein EM, Recker RR, Lappe JM, Dempster DW, Zhou H, Cremers S, McMahon DJ, Nickolas TL, Müller R, Zwahlen A, Young P, Stubby J, Shane E. Teriparatide for idiopathic osteoporosis in premenopausal women: a pilot study. J Clin Endocrinol Metab 2013; 98:1971-81. [PMID: 23543660 PMCID: PMC3644608 DOI: 10.1210/jc.2013-1172] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
CONTEXT Premenopausal women with idiopathic osteoporosis (IOP) have abnormal cortical and trabecular bone microarchitecture. OBJECTIVE The purpose of this study was to test the hypotheses that teriparatide increases bone mineral density (BMD) and bone formation and improves trabecular microarchitecture and stiffness in women with IOP. DESIGN This was an open-label pilot study. SETTING The setting was a tertiary care referral center. PATIENTS Participants were 21 premenopausal women with unexplained fragility fractures or low BMD. INTERVENTION Teriparatide was administered at 20 μg daily for 18 to 24 months. MAIN OUTCOME MEASURES The primary endpoint was within-subject percent change in lumbar spine BMD. Secondary endpoints included percent change in hip and forearm BMD, transiliac biopsy parameters (trabecular bone volume, microarchitecture, stiffness, and adipocytes), serum N-terminal propeptide of procollagen type 1 (P1NP), and C-telopeptide. RESULTS BMD increased at the spine (10.8 ± 8.3% [SD]), total hip (6.2 ± 5.6%), and femoral neck (7.6 ± 3.4%) (all P < .001). Serum P1NP doubled by 1 month, peaked at 6 months, and returned to baseline by 18 to 24 months. Transiliac biopsies demonstrated significant increases in cortical width and porosity and trabecular bone volume and number increased, mirrored by a 71% increase in trabecular bone stiffness (P < .02-.001). Adipocyte area, perimeter, and volume/marrow volume decreased, with no change in adipocyte number. Four women had no increase in BMD and a blunted, delayed increase in serum P1NP. Nonresponders had markedly lower baseline bone formation rate (0.002 ± 0.001 vs 0.011 ± 0.006 mm²/mm/y; P < .001) and higher serum IGF-1 (208 ± 54 vs 157± 44 ng/mL; P = .03). CONCLUSIONS Teriparatide was associated with increased spine and hip BMD and improved trabecular microarchitecture and stiffness at the iliac crest in the majority of women with IOP.
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Affiliation(s)
- Adi Cohen
- Department of Medicine, Columbia University Medical Center, New York, New York 10032, USA
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Stein EM, Rosete F, Young P, Kamanda-Kosseh M, McMahon DJ, Luo G, Kaufman JJ, Shane E, Siffert RS. Clinical assessment of the 1/3 radius using a new desktop ultrasonic bone densitometer. Ultrasound Med Biol 2013; 39:388-95. [PMID: 23312957 PMCID: PMC3570600 DOI: 10.1016/j.ultrasmedbio.2012.09.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2012] [Revised: 09/20/2012] [Accepted: 09/27/2012] [Indexed: 05/23/2023]
Abstract
The objectives of this study were to evaluate the capability of a novel ultrasound device to clinically estimate bone mineral density (BMD) at the 1/3 radius. The device rests on a desktop and is portable, and permits real-time evaluation of the radial BMD. The device measures two net time delay (NTD) parameters, NTD(DW) and NTD(CW). NTD(DW) is defined as the difference between the transit time of an ultrasound pulse to travel through soft-tissue, cortex and medullary cavity, and the transit time through soft tissue only of equal overall distance. NTD(CW) is defined as the difference between the transit time of an ultrasound pulse to travel through soft-tissue and cortex only, and the transit time through soft tissue only again of equal overall distance. The square root of the product of these two parameters is a measure of the radial BMD at the 1/3 location as measured by dual-energy X-ray absorptiometry (DXA). A clinical IRB-approved study measured ultrasonically 60 adults at the 1/3 radius. BMD was also measured at the same anatomic site and time using DXA. A linear regression using NTD produced a linear correlation coefficient of 0.93 (p < 0.001). These results are consistent with previously reported simulation and in vitro studies. In conclusion, although X-ray methods are effective in bone mass assessment, osteoporosis remains one of the largest undiagnosed and under-diagnosed diseases in the world today. The research described here should enable significant expansion of diagnosis and monitoring of osteoporosis through a desktop device that ultrasonically assesses bone mass at the 1/3 radius.
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Affiliation(s)
- Emily M Stein
- Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY, USA
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Stein EM, Carrelli A, Young P, Bucovsky M, Zhang C, Schrope B, Bessler M, Zhou B, Wang J, Guo XE, McMahon DJ, Silverberg SJ. Bariatric surgery results in cortical bone loss. J Clin Endocrinol Metab 2013; 98:541-9. [PMID: 23295461 PMCID: PMC3565117 DOI: 10.1210/jc.2012-2394] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND Bariatric surgery results in bone loss at weight-bearing sites, the mechanism of which is unknown. METHODS Twenty-two women (mean body mass index 44 kg/m(2); aged 45 years) who underwent Roux-en-Y gastric bypass (n = 14) and restrictive procedures (n = 8) had measurements of areal bone mineral density by dual-energy x-ray absorptiometry at the lumbar spine, total hip (TH), femoral neck (FN), and one third radius and trabecular and cortical volumetric bone mineral density and microstructure at the distal radius and tibia by high-resolution peripheral quantitative computed tomography (HR-pQCT) at baseline and 12 months postoperatively. RESULTS Mean weight loss was 28 ± 3 kg (P < .0001). PTH rose 23% (P < .02) and 25-hydroxyvitamin D was stable. C-telopeptide increased by 144% (P < .001). Bone-specific alkaline phosphatase did not change. Areal bone mineral density declined at TH (-5.2%; P < .005) and FN (-4.5%; P < .005). By HR-pQCT, trabecular parameters were stable, whereas cortical bone deteriorated, particularly at the tibia: cortical area (-2.7%; P < .01); cortical thickness (-2.1%; P < .01); total density (-1.3%; P = .059); cortical density (-1.7%; P < .01). In multivariate regression, bone loss at the TH and FN were predicted by weight loss. In contrast, only PTH increase predicted cortical deterioration at the tibia. Roux-en-Y gastric bypass patients lost more weight, had more bone loss by dual-energy x-ray absorptiometry and HR-pQCT than those with restrictive procedures, and had declines in cortical load share estimated by finite element analysis. CONCLUSIONS After bariatric surgery, hip bone loss reflects skeletal unloading and cortical bone loss reflects secondary hyperparathyroidism. This study highlights deterioration of cortical bone loss as a novel mechanism for bone loss after bariatric surgery.
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Affiliation(s)
- Emily M Stein
- Department of Medicine/Endocrinology, Columbia University of Physicians and Surgeons, New York, New York 10032, USA.
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Shane E, Cohen A, Stein EM, McMahon DJ, Zhang C, Young P, Pandit K, Staron RB, Verna EC, Brown R, Restaino S, Mancini D. Zoledronic acid versus alendronate for the prevention of bone loss after heart or liver transplantation. J Clin Endocrinol Metab 2012; 97:4481-90. [PMID: 23024190 PMCID: PMC3591679 DOI: 10.1210/jc.2012-2804] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT The first year after transplantation is characterized by rapid bone loss. OBJECTIVE The aim of this study was to compare zoledronic acid (zoledronate) and alendronate for prevention of transplantation bone loss. DESIGN AND SETTING A randomized clinical trial was conducted at a transplantation center. PATIENTS The study included 84 adults undergoing heart or liver transplantation and a concurrently transplanted, nonrandomized reference group of 27 adults with T scores greater than -1.5. INTERVENTIONS Alendronate (70 mg weekly for 12 months) or one 5-mg infusion of zoledronate were both initiated 26 ± 8 d after transplantation. MAIN OUTCOME MEASURES The primary outcome was total hip bone mineral density (BMD) 1 yr after transplantation. Secondary outcomes included femoral neck and lumbar spine BMD and serum C-telopeptide, a bone resorption marker. RESULTS In the reference group, BMD declined at the spine and hip (P < 0.001). In the randomized groups, hip BMD remained stable. Spine BMD increased in the zoledronate group and did not change in the alendronate group; at 12 months, the 2.2% difference between groups (95% confidence interval, 0.6 to 3.9%; P = 0.009) favored zoledronate. In heart transplant patients, spine BMD declined in the alendronate and increased in the zoledronate group (-3.0 vs. +1.6%, respectively; between-group difference, 4.2%; 95% confidence interval, 2.1 to 6.3%; P < 0.001). In liver transplant patients, spine BMD increased comparably in both groups. Twelve-month C-telopeptide was lower in the zoledronate group than in the alendronate group (79 vs. 49%; P = 0.04). CONCLUSIONS One 5-mg infusion of zoledronate and weekly alendronate prevent bone loss at the hip and, in liver transplant patients, increase spine BMD. In heart transplant patients, spine bone BMD remained stable with zoledronate but decreased with alendronate.
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Affiliation(s)
- Elizabeth Shane
- Department of Medicine, Columbia University Medical Center, Columbia University, New York, New York 10032, USA.
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Cohen A, Lang TF, McMahon DJ, Liu XS, Guo XE, Zhang C, Stein EM, Dempster DW, Young P, Saeed I, Lappe JM, Recker RR, Shane E. Central QCT reveals lower volumetric BMD and stiffness in premenopausal women with idiopathic osteoporosis, regardless of fracture history. J Clin Endocrinol Metab 2012; 97:4244-52. [PMID: 22962425 PMCID: PMC3485589 DOI: 10.1210/jc.2012-2099] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT Idiopathic osteoporosis (IOP) affects otherwise healthy young individuals with intact gonadal function and no secondary cause of bone fragility. In premenopausal women with IOP, a low trauma fracture is evidence of impaired bone quality and strength. The extent to which low bone mineral density (BMD) by dual-energy x-ray absorptiometry (DXA) reflects low volumetric BMD, bone microstructure, and strength is uncertain in the absence of low trauma fracture. OBJECTIVE The objective of the study was to compare three-dimensional volumetric BMD and bone stiffness in premenopausal women with IOP based on fracture history, those with idiopathic low BMD (Z score ≤ -2.0) and no low trauma fracture, and normal age-matched controls. DESIGN We measured volumetric BMD and bone geometry by central quantitative computed tomography (cQCT) scans of the spine and hip and estimated bone stiffness by finite element analysis of cQCT data sets in 32 premenopausal women with IOP, 12 with idiopathic low BMD, and 34 controls. RESULTS Subjects had comparable decreases in total and trabecular volumetric BMD, cortical thickness, and whole-bone stiffness compared with controls, regardless of fracture history. These differences remained significant after controlling for age, body mass index, and bone size. The positive predictive values of a DXA Z score of -2.0 or less for a cQCT volumetric BMD Z score of -2.0 or less were 95% at the lumbar spine, 90% at the total hip, and 86% at the femoral neck. CONCLUSION Women with idiopathic low BMD alone and those with low trauma fractures had comparable deficits in bone mass, structure, and stiffness. Low areal BMD by DXA is fairly accurate for predicting low volumetric BMD by cQCT. These results are consistent with three-dimensional bone imaging at the iliac crest, radius, and tibia in premenopausal IOP and suggest that the term osteoporosis may be appropriate in women with Z scores below -2.0, whether or not there is a history of fracture.
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Affiliation(s)
- Adi Cohen
- Department of Medicine, PH8-864, Columbia University, College of Physicians and Surgeons, 630 West 168th Street, New York, New York 10032, USA.
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Stein EM, Tallman MS. Novel and emerging drugs for acute myeloid leukemia. Curr Cancer Drug Targets 2012; 12:522-30. [PMID: 22483153 DOI: 10.2174/156800912800673248] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2011] [Revised: 10/03/2011] [Accepted: 01/13/2012] [Indexed: 01/30/2023]
Abstract
Acute myeloid leukemia (AML) is a challenging disease to treat with the majority of patients dying from their illness. While overall survival has been markedly prolonged in acute promyelocytic leukemia (APL), survival in younger adults with other subtypes of AML has only modestly improved over the last twenty years. Physicians who treat AML eagerly await drugs like Imatinib for chronic myeloid leukemia, Cladribine for hairy cell leukemia, and Rituximab for non-Hodgkin Lymphoma which have had an important impact on improving outcome. Recent research efforts have focused on refining traditional chemotherapeutic agents to make them more active in AML, targeting specific genetic mutations in myeloid leukemia cells, and utilizing novel agents such as Lenalidomide that have shown activity in other hematologic malignancies. Here, we focus on reviewing the recent literature on agents that may assume a role in clinical practice for patients with AML over the next five years.
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Affiliation(s)
- E M Stein
- Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA
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Stein EM, Liu XS, Nickolas TL, Cohen A, McMahon DJ, Zhou B, Zhang C, Kamanda-Kosseh M, Cosman F, Nieves J, Guo XE, Shane E. Microarchitectural abnormalities are more severe in postmenopausal women with vertebral compared to nonvertebral fractures. J Clin Endocrinol Metab 2012; 97:E1918-26. [PMID: 22821893 PMCID: PMC3674300 DOI: 10.1210/jc.2012-1968] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND Abnormal bone microarchitecture predisposes postmenopausal women to fragility fractures. Whether women with vertebral fractures have worse microarchitecture than those with nonvertebral fractures is unknown. METHODS Postmenopausal women with a history of low trauma vertebral fracture (n=30) and nonvertebral fracture (n=73) and controls (n=120) had areal bone mineral density of lumbar spine, total hip, femoral neck, 1/3 radius, and ultradistal radius measured by dual-energy x-ray absorptiometry. Trabecular and cortical volumetric bone mineral density and microarchitecture were measured by high-resolution peripheral quantitative computed tomography of the distal radius and tibia. Finite element analysis estimated whole bone stiffness. RESULTS Mean age of subjects was 68±7 yr. Groups were similar with respect to age, race, and body mass index. Mean T-scores did not differ from controls at any site except the ultradistal radius (vertebral fracture, 0.6 sd lower; nonvertebral fracture, 0.4 sd lower). Compared to controls, women with vertebral fractures had lower total, cortical, and trabecular volumetric density, lower cortical thickness, trabecular number and thickness, greater trabecular separation and network heterogeneity, and lower stiffness at both radius and tibia. Differences between women with nonvertebral fractures and controls were similar but less pronounced. Compared to women with nonvertebral fractures, women with vertebral fractures had lower total and trabecular density, lower cortical thickness and trabecular number, and greater trabecular separation and heterogeneity at the tibia. Whole bone stiffness tended to be lower (P=0.06). Differences between fracture groups at the radius were not statistically significant. CONCLUSION Women with vertebral fractures have more severe trabecular and cortical microarchitectural deterioration than those with nonvertebral fractures, particularly at the tibia.
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Affiliation(s)
- Emily M Stein
- Department of Medicine, Columbia University College of Physicians and Surgeons, 630 West 168th Street, PH8 West 864, New York, New York 10032, USA
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Cohen A, Dempster DW, Stein EM, Nickolas TL, Zhou H, McMahon DJ, Müller R, Kohler T, Zwahlen A, Lappe JM, Young P, Recker RR, Shane E. Increased marrow adiposity in premenopausal women with idiopathic osteoporosis. J Clin Endocrinol Metab 2012; 97:2782-91. [PMID: 22701013 PMCID: PMC3410269 DOI: 10.1210/jc.2012-1477] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
CONTEXT We have previously reported that premenopausal women with idiopathic osteoporosis based on fractures (IOP) or idiopathic low bone mineral density (ILBMD) exhibit markedly reduced bone mass, profoundly abnormal trabecular microstructure, and significant deficits in trabecular bone stiffness. Bone remodeling was heterogeneous. Those with low bone turnover had evidence of osteoblast dysfunction and the most marked deficits in microstructure and stiffness. OBJECTIVE Because osteoblasts and marrow adipocytes derive from a common mesenchymal precursor and excess marrow fat has been implicated in the pathogenesis of bone fragility in anorexia nervosa, glucocorticoid excess, and thiazolidinedione exposure, we hypothesized that marrow adiposity would be higher in affected women and inversely related to bone mass, microarchitecture, bone formation rate, and osteoblast number. DESIGN We analyzed tetracycline-labeled transiliac biopsy specimens in 64 premenopausal women with IOP or ILBMD and 40 controls by three-dimensional micro-computed tomography and two-dimensional quantitative histomorphometry to assess marrow adipocyte number, perimeter, and area. RESULTS IOP and ILBMD subjects did not differ with regard to any adipocyte parameter, and thus results were combined. Subjects had substantially higher adipocyte number (by 22%), size (by 24%), and volume (by 26%) than controls (P < 0.0001 for all). Results remained significant after adjusting for age, body mass index, and bone volume. Controls demonstrated expected direct associations between marrow adiposity and age and inverse relationships between marrow adiposity and bone formation, volume, and microstructure measures. No such relationships were observed in the subjects. CONCLUSIONS Higher marrow adiposity and the absence of expected relationships between marrow adiposity and bone microstructure and remodeling in women with IOP or ILBMD suggest that the relationships between fat and bone are abnormal; excess marrow fat may not arise from a switch from the osteoblast to the adipocyte lineage in this disorder. Whether excess marrow fat contributes to the pathogenesis of this disorder remains unclear.
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Affiliation(s)
- Adi Cohen
- Columbia University, New York, New York 10032, USA.
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Affiliation(s)
- C D Kemp
- Department of General Surgery, The Johns Hopkins Hospital, Baltimore, MD 21205, USA
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Liu XS, Stein EM, Zhou B, Zhang CA, Nickolas TL, Cohen A, Thomas V, McMahon DJ, Cosman F, Nieves J, Shane E, Guo XE. Individual trabecula segmentation (ITS)-based morphological analyses and microfinite element analysis of HR-pQCT images discriminate postmenopausal fragility fractures independent of DXA measurements. J Bone Miner Res 2012; 27:263-72. [PMID: 22072446 PMCID: PMC3290758 DOI: 10.1002/jbmr.562] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Osteoporosis is typically diagnosed by dual-energy X-ray absorptiometry (DXA) measurements of areal bone mineral density (aBMD). Emerging technologies, such as high-resolution peripheral quantitative computed tomography (HR-pQCT), may increase the diagnostic accuracy of DXA and enhance our mechanistic understanding of decreased bone strength in osteoporosis. Women with (n = 68) and without (n = 101) a history of postmenopausal fragility fracture had aBMD measured by DXA, trabecular plate and rod microarchitecture measured by HR-pQCT image-based individual trabecula segmentation (ITS) analysis, and whole bone and trabecular bone stiffness by microfinite element analysis (µFEA) of HR-pQCT images at the radius and tibia. DXA T-scores were similar in women with and without fractures at the spine, hip, and 1/3 radius, but lower in fracture subjects at the ultradistal radius. Trabecular microarchitecture of fracture subjects was characterized by preferential reductions in trabecular plate bone volume, number, and connectivity over rod trabecular parameters, loss of axially aligned trabeculae, and a more rod-like trabecular network. In addition, decreased thickness and size of trabecular plates were observed at the tibia. The differences between groups were greater at the radius than the tibia for plate number, rod bone volume fraction and number, and plate-rod and rod-rod junction densities. Most differences between groups remained after adjustment for T-score by DXA. At a fixed bone volume fraction, trabecular plate volume, number, and connectivity were directly associated with bone stiffness. In contrast, rod volume, number, and connectivity were inversely associated with bone stiffness. In summary, HR-pQCT-based ITS and µFEA measurements discriminate fracture status in postmenopausal women independent of DXA measurements. Moreover, these results suggest that preferential loss of plate-like trabeculae contribute to lower trabecular bone and whole bone stiffness in women with fractures. We conclude that HR-pQCT-based ITS and µFEA measurements increase our understanding of the microstructural pathogenesis of fragility fracture in postmenopausal women.
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Affiliation(s)
- X. Sherry Liu
- Division of Endocrinology, Department of Medicine, College of Physicians and Surgeons, Columbia University New York, New York, U.S.A
| | - Emily M. Stein
- Division of Endocrinology, Department of Medicine, College of Physicians and Surgeons, Columbia University New York, New York, U.S.A
| | - Bin Zhou
- Helen Hayes Hospital, Clinical Research Center, West Haverstraw, New York, U.S.A
| | - Chiyuan A. Zhang
- Division of Endocrinology, Department of Medicine, College of Physicians and Surgeons, Columbia University New York, New York, U.S.A
| | - Thomas L. Nickolas
- Division of Endocrinology, Department of Medicine, College of Physicians and Surgeons, Columbia University New York, New York, U.S.A
| | - Adi Cohen
- Division of Endocrinology, Department of Medicine, College of Physicians and Surgeons, Columbia University New York, New York, U.S.A
| | - Valerie Thomas
- Division of Endocrinology, Department of Medicine, College of Physicians and Surgeons, Columbia University New York, New York, U.S.A
| | - Donald J. McMahon
- Division of Endocrinology, Department of Medicine, College of Physicians and Surgeons, Columbia University New York, New York, U.S.A
| | - Felicia Cosman
- Helen Hayes Hospital, Clinical Research Center, West Haverstraw, New York, U.S.A
| | - Jeri Nieves
- Helen Hayes Hospital, Clinical Research Center, West Haverstraw, New York, U.S.A
| | - Elizabeth Shane
- Division of Endocrinology, Department of Medicine, College of Physicians and Surgeons, Columbia University New York, New York, U.S.A
| | - X. Edward Guo
- Bone Bioengineering Laboratory, Department of Biomedical Engineering, Columbia University New York, New York, U.S.A
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Cohen A, Recker RR, Lappe J, Dempster DW, Cremers S, McMahon DJ, Stein EM, Fleischer J, Rosen CJ, Rogers H, Staron RB, Lemaster J, Shane E. Premenopausal women with idiopathic low-trauma fractures and/or low bone mineral density. Osteoporos Int 2012; 23:171-82. [PMID: 21365462 PMCID: PMC3206165 DOI: 10.1007/s00198-011-1560-y] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2010] [Accepted: 12/17/2010] [Indexed: 11/30/2022]
Abstract
INTRODUCTION In men, idiopathic osteoporosis (IOP) is often associated with low serum insulin-like growth factor (IGF-1) and reduced bone formation. The characteristics of premenopausal women with IOP are not well defined. We aimed to define the clinical, reproductive, and biochemical characteristics of premenopausal women with unexplained osteoporosis. METHODS This is a cross-sectional study of 64 women with unexplained osteoporosis, 45 with fragility fractures, 19 with low bone mineral density (BMD; Z-score less than or equal to -2.0) and 40 normal controls. The following are the main outcome measures: clinical and anthropometric characteristics, reproductive history, BMD, gonadal and calciotropic hormones, IGF-1, and bone turnover markers (BTMs). RESULTS Subjects had lower BMI and BMD than controls, but serum and urinary calcium, serum estradiol, vitamin D metabolites, IGF-1, and most BTMs were similar. Serum parathyroid hormone (PTH) and the resorption marker, tartrate-resistant acid phosphatase (TRAP5b), were significantly higher in both groups of subjects than controls and directly associated in all groups. Serum IGF-1 and all BTMs were directly associated in controls, but the association was not significant after controlling for age. There was no relationship between serum IGF-1 and BTMs in subjects. There were few differences between women with fractures and low BMD. CONCLUSIONS Higher serum TRAP5b and PTH suggest that increased bone turnover, possibly related to subclinical secondary hyperparathyroidism could contribute to the pathogenesis of IOP. The absence of differences between women with fractures and those with very low BMD indicates that this distinction may not be clinically useful to categorize young women with osteoporosis.
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Affiliation(s)
- A Cohen
- Columbia University, New York, NY, USA.
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