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Hans D, Shevroja E, McDermott M, Huang S, Kim M, McClung M. Updated trabecular bone score accounting for the soft tissue thickness (TBS TT) demonstrated significantly improved bone microstructure with denosumab in the FREEDOM TBS post hoc analysis. Osteoporos Int 2022; 33:2517-2525. [PMID: 36115888 PMCID: PMC9652244 DOI: 10.1007/s00198-022-06549-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 09/01/2022] [Indexed: 11/30/2022]
Abstract
UNLABELLED TBS algorithm has been updated to account for regional soft tissue noise. In postmenopausal women with osteoporosis, denosumab improved tissue thickness-adjusted TBS vs placebo independently of bone mineral density over 3 years, with the magnitude of changes from baseline or placebo numerically greater than body mass index-adjusted TBS. INTRODUCTION To evaluate the effect of denosumab on bone microarchitecture assessed by trabecular bone score (TBS) in the FREEDOM study using the updated algorithm that accounts for regional soft tissue thickness (TBSTT) in dual-energy X-ray absorptiometry (DXA) images and to compare percent changes from baseline and placebo with classical body mass index (BMI)-adjusted TBS (TBSBMI). METHODS Postmenopausal women with lumbar spine or total hip bone mineral density (BMD) T score < - 2.5 and ≥ - 4.0 received placebo or denosumab 60 mg subcutaneously every 6 months. TBSBMI and TBSTT were assessed on lumbar spine DXA scans at baseline and months 1, 12, 24, and 36 in a subset of 279 women (129 placebo, 150 denosumab) who completed the 3-year FREEDOM DXA substudy and rolled over to open-label extension study. RESULTS Baseline characteristics were similar between groups. TBSTT in the denosumab group showed numerically greater changes from both baseline and placebo than TBSBMI at months 12, 24, and 36. Denosumab led to progressive increases in BMD (1.2, 5.6, 8.1, and 10.5%) and TBSTT (0.4, 2.3, 2.6, and 3.3%) from baseline to months 1, 12, 24, and 36, respectively. Both TBS changes were significant vs baseline and placebo from months 12 to 36 (p < 0.0001). As expected, BMD and TBSTT were poorly correlated both at baseline and for changes during treatment. CONCLUSION In postmenopausal women with osteoporosis, denosumab significantly improved bone microstructure assessed by TBSTT over 3 years. TBSTT seemed more responsive to denosumab treatment than TBSBMI and was independent of BMD.
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Affiliation(s)
- Didier Hans
- Interdisciplinary Center of Bone Diseases, Lausanne University Hospital and Lausanne University, Av. Pierre Decker 4, 1011, Lausanne, Switzerland.
| | - Enisa Shevroja
- Interdisciplinary Center of Bone Diseases, Lausanne University Hospital and Lausanne University, Av. Pierre Decker 4, 1011, Lausanne, Switzerland
| | | | | | - Min Kim
- Amgen Inc, Thousand Oaks, CA, USA
| | - Michael McClung
- Oregon Osteoporosis Center, Portland, OR, USA
- Mary MacKillop Institute for Health Research, Australian Catholic University, Melbourne, VIC, Australia
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2
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Zhao C, Kan J, Xu Z, Zhao D, Lu A, Liu Y, Ye X. Higher BMI and lower femoral neck strength in males with type 2 diabetes mellitus and normal bone mineral density. Am J Med Sci 2022; 364:631-637. [PMID: 35718124 DOI: 10.1016/j.amjms.2022.06.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 01/22/2022] [Accepted: 06/13/2022] [Indexed: 01/25/2023]
Abstract
BACKGROUND Type 2 diabetes mellitus (T2DM) and osteoporosis are two age-associated diseases. Body mass index (BMI) is positively associated with osteoporosis or osteopenia in T2DM population. Bone mineral density does not necessarily reflect the alterations in bone microarchitecture. Our aims were to investigate the relationship between BMI and femoral neck strength in males with T2DM and normal range of bone mineral density (BMD). METHODS This study enrolled 115 males (median age 53.3 years) with T2DM and normal BMD. Femoral neck strength indexes, including compression strength index (CSI), bending strength index (BSI), impact strength index (ISI), were calculated by parameters generated from Dual-energy X-ray absorptiometry software. Pearson correlation analysis was performed to evaluate the relationships between BMI and femoral neck strength variables. RESULTS Compared with T2DM-normal weight group, T2DM-overweight group and T2DM-obesity group had a higher femur neck and total femur BMDs. Cross sectional moment of inertia (CSMI), cross sectional area (CSA), section modulus (SM) were significantly higher (all p<0.05), and buckling ratio (BR) (6.35±2.08 vs 7.18±1.71) was lower in T2DM-obesity group than in T2DM-normal weight group. Compared with T2DM-normal weight group, CSI (all p<0.001), BSI (all p<0.001), ISI (all p<0.001) were significantly reduced in T2DM-obesity and T2DM-overweight groups. Pearson correlation analysis indicated that BMI was negatively correlated with CSI (r= - 0.457, p<0.001), BSI(r = -0.397, p<0.001), ISI (r = - 0.414, p<0.001). CONCLUSIONS Higher BMI is associated with lower femoral neck strength in males with T2DM and normal BMD. It implies that femoral neck fracture risk increases in obese and diabetic males, despite their high bone density.
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Affiliation(s)
- Cuiping Zhao
- Department of Geriatrics, Changzhou No.2 people's Hospital, Affiliated to Nanjing Medical University, 213000, Changzhou, China
| | - Jingbao Kan
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, 210029, Nanjing, China
| | - Zhe Xu
- Department of Laboratory, Changzhou No.2 people's Hospital, Affiliated to Nanjing Medical University, 213000, Changzhou, China
| | - Dan Zhao
- Department of Endocrine and Metabolism Research Center/ Endocrine and metabolic disease treatment center, Changzhou No.2 people's Hospital, Affiliated to Nanjing Medical University, 213000, Changzhou, China
| | - Aijiao Lu
- Department of Endocrine and Metabolism Research Center/ Endocrine and metabolic disease treatment center, Changzhou No.2 people's Hospital, Affiliated to Nanjing Medical University, 213000, Changzhou, China
| | - Yun Liu
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, 210029, Nanjing, China.
| | - Xinhua Ye
- Department of Geriatrics, Changzhou No.2 people's Hospital, Affiliated to Nanjing Medical University, 213000, Changzhou, China; Department of Endocrine and Metabolism Research Center/ Endocrine and metabolic disease treatment center, Changzhou No.2 people's Hospital, Affiliated to Nanjing Medical University, 213000, Changzhou, China.
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Khanal T, Bedecarrats GY, Kiarie EG. Cage type and mineral nutrition had independent impact on skeletal development in Lohmann LSL-Lite pullets from hatch to 16 weeks of age. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2021; 7:631-640. [PMID: 34401541 PMCID: PMC8334376 DOI: 10.1016/j.aninu.2020.11.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 11/12/2020] [Accepted: 11/18/2020] [Indexed: 12/31/2022]
Abstract
The effects of rearing cage type and dietary Ca, available P and vitamin D3 (VitD3) on body and skeletal development were studied. A total of 3,420 Lohmann LSL-Lite day-old chicks were reared in conventional (CON) or furnished cages (FUR) to 16 wk of age. Initially, 40 and 150 chicks/cage were placed in CON and FUR and transitioned to 20 and 75 chicks/cage at 8 wk of age, respectively. Three diets: Diet 1, Diet 1.5 and Diet 2 were formulated to meet nutrient specifications with Diet 1.5 and Diet 2 containing 1.5 and 2 times more Ca, P and VitD3 than Diet 1, respectively. Diets were allocated within cage type to give 6 replicates and fed in 3 feeding programs: starter, grower and developer. At 4, 12 and 16 wk of age, BW was recorded, and femur, tibia and blood samples for bone quality and related parameters. There were no interactions (P > 0.05) of cage type, diet and pullet age on BW, plasma Ca and inorganic P, femur and tibia morphometry, mineral density (MD), breaking strength (BS) and ash concentration (AC). Concentration of Ca, P and VitD3 linearly decreased BW (P < 0.001), relative femur (P = 0.010) and tibia weight (P = 0.013). A quadratic increase on femur MD (P = 0.03) and BS (P = 0.026) was observed with dietary concentration of Ca, P and VitD3. Femur (P = 0.031) was longer for CON than FUR pullets, however, femur for FUR pullets had higher (P = 0.003) AC. Cage had no effect (P ≥ 0.415) femoral MD and BS. Pullets reared in FUR cages exhibited higher tibial MD (P = 0.015), BS (P = 0.071), AC (P < 0.01) and whole-body mineral content (P < 0.01). In conclusion, cage type and diets showed independent effect on femur and tibia quality with FUR pullets exhibiting enhanced indices of mineralization. Feeding pullets twice the recommended Ca, P and VitD3 decreased BW, relative weight of leg bone but enhanced femoral strength with no effects on tibia attributes.
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Affiliation(s)
- Tanka Khanal
- Department of Animal Biosciences, University of Guelph, Guelph, N1G2W1, Canada
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Amin B, Shahzad A, Crocco L, Wang M, O'Halloran M, González-Suárez A, Elahi MA. A feasibility study on microwave imaging of bone for osteoporosis monitoring. Med Biol Eng Comput 2021; 59:925-936. [PMID: 33783696 DOI: 10.1007/s11517-021-02344-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 03/17/2021] [Indexed: 10/21/2022]
Abstract
The dielectric properties of bones are found to be influenced by the demineralisation of bones. Therefore, microwave imaging (MWI) can be used to monitor in vivo dielectric properties of human bones and hence aid in the monitoring of osteoporosis. This paper presents the feasibility analysis of the MWI device for monitoring osteoporosis. Firstly, the dielectric properties of tissues present in the human heel are analysed. Secondly, a transmission line (TL) formalism approach is adopted to examine the feasible frequency band and the matching medium for MWI of trabecular bone. Finally, simplified numerical modelling of the human heel was set to monitor the penetration of E-field, the received signal strength, and the power loss in a numerical model of the human heel. Based on the TL formalism approach, 0.6-1.9-GHz frequency band is found to feasible for bone imaging purpose. The relative permittivity of the matching medium can be chosen between 15 and 40. The average percentage difference between the received signal for feasible and inconvenient frequency band was found to be 82%. The findings based on the dielectric contrast of tissues in the heel, the feasible frequency band, and the finite difference time domain simulations support the development of an MWI prototype for monitoring osteoporosis.
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Affiliation(s)
- Bilal Amin
- Electrical and Electronic Engineering, National University of Ireland Galway, Galway, Ireland. .,Translational Medical Device Lab, National University of Ireland Galway, Galway, Ireland.
| | - Atif Shahzad
- School of Medicine, National University of Ireland Galway, Galway, Ireland.,Centre for Systems Modelling and Quantitative Biomedicine, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
| | - Lorenzo Crocco
- IREA-CNR, Institute for Electromagnetic Sensing of the Environment, National Research Council of Italy, Naples, Italy
| | - Mengchu Wang
- IREA-CNR, Institute for Electromagnetic Sensing of the Environment, National Research Council of Italy, Naples, Italy
| | - Martin O'Halloran
- Electrical and Electronic Engineering, National University of Ireland Galway, Galway, Ireland.,Translational Medical Device Lab, National University of Ireland Galway, Galway, Ireland.,School of Medicine, National University of Ireland Galway, Galway, Ireland
| | - Ana González-Suárez
- Electrical and Electronic Engineering, National University of Ireland Galway, Galway, Ireland.,Translational Medical Device Lab, National University of Ireland Galway, Galway, Ireland
| | - Muhammad Adnan Elahi
- Electrical and Electronic Engineering, National University of Ireland Galway, Galway, Ireland.,Translational Medical Device Lab, National University of Ireland Galway, Galway, Ireland
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Amin B, Shahzad A, O’Halloran M, Elahi MA. Microwave Bone Imaging: A Preliminary Investigation on Numerical Bone Phantoms for Bone Health Monitoring. SENSORS (BASEL, SWITZERLAND) 2020; 20:E6320. [PMID: 33167562 PMCID: PMC7664235 DOI: 10.3390/s20216320] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 10/31/2020] [Accepted: 11/03/2020] [Indexed: 11/30/2022]
Abstract
Microwave tomography (MWT) can be used as an alternative modality for monitoring human bone health. Studies have found a significant dielectric contrast between healthy and diseased human trabecular bones. A set of diverse bone phantoms were developed based on single-pole Debye parameters of osteoporotic and osteoarthritis human trabecular bones. The bone phantoms were designed as a two-layered circular structure, where the outer layer mimics the dielectric properties of the cortical bone and the inner layer mimics the dielectric properties of the trabecular bone. The electromagnetic (EM) inverse scattering problem was solved using a distorted Born iterative method (DBIM). A compressed sensing-based linear inversion approach referred to as iterative method with adaptive thresholding for compressed sensing (IMATCS) has been employed for solving the underdetermined set of linear equations at each DBIM iteration. To overcome the challenges posed by the ill-posedness of the EM inverse scattering problem, the L2-based regularization approach was adopted in the amalgamation of the IMATCS approach. The simulation results showed that osteoporotic and osteoarthritis bones can be differentiated based on the reconstructed dielectric properties even for low values of the signal-to-noise ratio. These results show that the adopted approach can be used to monitor bone health based on the reconstructed dielectric properties.
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Affiliation(s)
- Bilal Amin
- Electrical and Electronic Engineering, National University of Ireland Galway, H91 TK33 Galway, Ireland; (M.O.); (M.A.E.)
- Translational Medical Device Lab, National University of Ireland Galway, H91 TK33 Galway, Ireland
| | - Atif Shahzad
- School of Medicine, National University of Ireland Galway, H91 TK33 Galway, Ireland;
| | - Martin O’Halloran
- Electrical and Electronic Engineering, National University of Ireland Galway, H91 TK33 Galway, Ireland; (M.O.); (M.A.E.)
- Translational Medical Device Lab, National University of Ireland Galway, H91 TK33 Galway, Ireland
| | - Muhammad Adnan Elahi
- Electrical and Electronic Engineering, National University of Ireland Galway, H91 TK33 Galway, Ireland; (M.O.); (M.A.E.)
- Translational Medical Device Lab, National University of Ireland Galway, H91 TK33 Galway, Ireland
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de Clauser L, Santana-Varela S, Wood JN, Sikandar S. Physiologic osteoclasts are not sufficient to induce skeletal pain in mice. Eur J Pain 2020; 25:199-212. [PMID: 32955748 PMCID: PMC8436750 DOI: 10.1002/ejp.1662] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 08/21/2020] [Accepted: 09/13/2020] [Indexed: 12/18/2022]
Abstract
Background Increased bone resorption is driven by augmented osteoclast activity in pathological states of the bone, including osteoporosis, fracture and metastatic bone cancer. Pain is a frequent co‐morbidity in bone pathologies and adequate pain management is necessary for symptomatic relief. Bone cancer is associated with severe skeletal pain and dysregulated bone remodelling, while increased osteoclast activity and bone pain are also observed in osteoporosis and during fracture repair. However, the effects of altered osteoclast activity and bone resorption on nociceptive processing of bone afferents remain unclear. Methods This study investigates whether physiologic osteoclasts and resulting changes in bone resorption can induce skeletal pain. We first assessed correlation between changes in bone microarchitecture (through µCT) and skeletal pain using standardized behavioural phenotyping assays in a mouse model of metastatic bone cancer. We then investigated whether increased activity of physiologic osteoclasts, and the associated bone resorption, is sufficient to induce skeletal pain using mouse models of localized and widespread bone resorption following administration of exogenous receptor activator of nuclear factor kappa‐B ligand (RANKL). Results Our data demonstrates that mice with bone cancer exhibit progressive pain behaviours that correlate with increased bone resorption at the tumour site. Systemic RANKL injections enhance osteoclast activity and associated bone resorption, without producing any changes in motor function or pain behaviours at both early and late timepoints. Conclusion These findings suggest that activation of homeostatic osteoclasts alone is not sufficient to induce skeletal pain in mice. Significance statement The role of osteoclasts in peripheral sensitization of sensory neurones is not fully understood. This study reports on the direct link between oestrogen‐independent osteoclast activation and skeletal pain. Administration of exogenous receptor activator of nuclear factor kappa‐B ligand (RANKL) increases bone resorption, but does not produce pro‐nociceptive changes in behavioural pain thresholds. Our data demonstrates that physiologic osteoclasts are not essential for skeletal pain behaviours.
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Affiliation(s)
- Larissa de Clauser
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, University College London, London, UK.,Wolfson Centre for Age-Related Diseases, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, London, UK
| | - Sonia Santana-Varela
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, University College London, London, UK
| | - John N Wood
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, University College London, London, UK
| | - Shafaq Sikandar
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, University College London, London, UK.,William Harvey Research Institute, Barts and the London School of Medicine & Dentistry, Mary University of London, London, UK
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7
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Oliveira-Santos N, Michels M, Freitas DQ, Haiter-Neto F, Oliveira ML. Influence of phosphor plate-based radiographic image specifications on fractal analysis of alveolar bone. Oral Surg Oral Med Oral Pathol Oral Radiol 2019; 128:418-423. [PMID: 31324583 DOI: 10.1016/j.oooo.2019.06.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 05/20/2019] [Accepted: 06/23/2019] [Indexed: 10/26/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the influence of spatial resolution, bit depth, and enhancement filters on the fractal dimension (FD) of photostimulable phosphor (PSP) plate-based intraoral radiographic images of alveolar bone. STUDY DESIGN Periapical radiographs were obtained using PSP plates, which were scanned at 2 spatial resolutions: 1270 dpi and 2000 dpi. All images were subjected to 3 enhancement filters-Perio, Endo, and Fine-and exported in 8 and 16 bits. A region-of-interest was selected on alveolar bone and the FD value was calculated. The multiway analysis of variance test followed by the post hoc Tukey test compared the FD values between the different groups (α = 0.05). RESULTS No significant difference was observed in FD values between the 8- and 16-bit images. Except for the Perio filter, FD values were significantly higher for images at 1270 dpi. FD values were significantly higher for the Perio filter, followed by the Endo filter, and the Fine filter. The FD values of the Fine filter did not differ significantly from the original image. CONCLUSIONS Fractal analysis of alveolar bone obtained from PSP plate-based intraoral radiographic images is influenced by spatial resolution and some digital enhancement filters; therefore, for FD comparison purposes, images should have the same specifications.
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Affiliation(s)
- Nicolly Oliveira-Santos
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Sao Paulo, Brazil.
| | - Mariane Michels
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Sao Paulo, Brazil
| | - Deborah Queiroz Freitas
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Sao Paulo, Brazil
| | - Francisco Haiter-Neto
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Sao Paulo, Brazil
| | - Matheus Lima Oliveira
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Sao Paulo, Brazil
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Nakashima D, Ishii K, Nishiwaki Y, Kawana H, Jinzaki M, Matsumoto M, Nakamura M, Nagura T. Quantitative CT-based bone strength parameters for the prediction of novel spinal implant stability using resonance frequency analysis: a cadaveric study involving experimental micro-CT and clinical multislice CT. Eur Radiol Exp 2019; 3:1. [PMID: 30671863 PMCID: PMC6342748 DOI: 10.1186/s41747-018-0080-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 11/20/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND To predict conventional test forces (peak torque and pull-out force) and a new test force (implant stability quotient [ISQ] value of a spinal pedicle screw) from computed tomography (CT) parameters, including micro-architectural parameters, using high-resolution micro-CT and clinical multislice CT (MSCT) in human cadaveric vertebrae. METHODS Micro-CT scans before/after screw insertion (n = 68) and MSCT scans before screw insertion (n = 58) of human cadaveric vertebrae were assessed for conventional test forces and ISQ value. Three-dimensional volume position adjustment between pre-insertion micro-CT and MSCT scans and post-insertion scans (micro-CT) was performed to extract the volume of the cancellous bone surrounding the pedicle screw. The following volume bone mineral density and micro-architectural parameters were calculated: bone volume fraction, bone surface density (bone surface/total volume (BS/TV)), trabecular thickness, trabecular separation, trabecular number, structure model index, and number of nodes (branch points) of the cancellous bone network/total volume (NNd/TV) using Spearman's rank correlation coefficient with Bonferroni correction. RESULTS Conventional test forces showed the strongest correlation with BS/TV: peak torque, ρ = 0.811, p = 4.96 × 10-17(micro-CT) and ρ = 0.730, p = 7.87 × 10-11 (MSCT); pull-out force, ρ = 0.730, p = 1.64 × 10-12 (micro-CT) and ρ = 0.693, p = 1.64 × 10-9 (MSCT). ISQ value showed the strongest correlation with NNd/TV: ρ = 0.607, p = 4.01 × 10-8 (micro-CT) and ρ = 0.515, p = 3.52 × 10-5 (MSCT). CONCLUSIONS Test forces, including the ISQ value, can be predicted using micro-CT and MSCT parameters. This is useful for establishing a preoperative fixation strength evaluation system.
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Affiliation(s)
- Daisuke Nakashima
- Department of Orthopedic surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, Japan
| | - Ken Ishii
- Department of Orthopedic surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, Japan.,Department of Orthopedic surgery, International University of Health and Welfare School of Medicine, Narita, Chiba, Japan
| | - Yuji Nishiwaki
- Department of Environmental and Occupational Health, School of Medicine, Toho University, Tokyo, Japan
| | - Hiromasa Kawana
- Department of Dentistry and Oral Surgery, Keio University School of Medicine, Shinjuku, Tokyo, Japan
| | - Masahiro Jinzaki
- Department of Radiology, Keio University School of Medicine, Shinjuku, Tokyo, Japan
| | - Morio Matsumoto
- Department of Orthopedic surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, Japan
| | - Masaya Nakamura
- Department of Orthopedic surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, Japan
| | - Takeo Nagura
- Department of Orthopedic surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, Japan. .,Department of Clinical Biomechanics, Keio University School of Medicine, Shinjuku, Tokyo, Japan.
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Rabelo GD, Roux JP, Portero-Muzy N, Gineyts E, Chapurlat R, Chavassieux P. Cortical Fractal Analysis and Collagen Crosslinks Content in Femoral Neck After Osteoporotic Fracture in Postmenopausal Women: Comparison with Osteoarthritis. Calcif Tissue Int 2018; 102:644-650. [PMID: 29249023 DOI: 10.1007/s00223-017-0378-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 12/14/2017] [Indexed: 01/22/2023]
Abstract
The femoral neck (FN) has been previously characterized by thinner cortices in osteoporotic fracture (HF) when compared to hip osteoarthritis (HOA). The purposes of this study were to complete the previous investigations on FNs from HF and HOA by analyzing the complexity of the cortical structure and to approach the intrinsic properties of cortical bone by assessing the collagen crosslink contents. FN samples were obtained during arthroplasty in 35 postmenopausal women (HF; n = 17; mean age 79 ± 2 years; HOA; n = 18; mean age 66 ± 2 years). The cortical fractal dimension (Ct.FD) and lacunarity (Ct.Lac) derived from high-resolution peripheral quantitative tomography (isotropic voxel size: 82 μm) images of FN by using Ctan software and Fraclac running in ImageJ were analyzed. The collagen crosslinks content [pyridinoline, deoxypyridinoline, pentosidine (PEN)] were assessed in cortical bone. Ct.FD was significantly lower (p < 0.0001) in HF than HOA reflecting a decreased complexity and was correlated to the age and BMD. In two sub-groups, BMD- and age-matched, respectively, Ct.FD remained significantly lower in HF than HOA (p < 0.001). Ct.Lac was not different between HF and HOA. PEN content was two times higher in HF than HOA (p < 0.0001) independently of age. In conclusion, FN with HF was characterized by a less complex cortical texture and higher PEN content than HOA. In addition to the decreased bone mass and BMD previously reported, these modifications contribute to the lower bone quality in HF than HOA in postmenopausal women.
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Affiliation(s)
| | | | | | | | | | - Pascale Chavassieux
- INSERM UMR 1033, Université de Lyon, Lyon, France.
- INSERM UMR 1033, UFR de Médecine Lyon-Est, Domaine Laennec, 7-11, Rue Guillaume Paradin, 69372, Lyon Cedex 08, France.
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10
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Güngör E, Yildirim D, Çevik R. Evaluation of osteoporosis in jaw bones using cone beam CT and dual-energy X-ray absorptiometry. J Oral Sci 2016; 58:185-94. [DOI: 10.2334/josnusd.15-0609] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Enes Güngör
- Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Zirve University
| | - Derya Yildirim
- Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Süleyman Demirel University
| | - Remzi Çevik
- Department of Physical Therapy and Rehabilitation, Faculty of Medicine, Dicle University
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11
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Montoya MJ, Giner M, Miranda C, Vázquez MA, Caeiro JR, Guede D, Pérez-Cano R. Microstructural trabecular bone from patients with osteoporotic hip fracture or osteoarthritis: its relationship with bone mineral density and bone remodelling markers. Maturitas 2014; 79:299-305. [PMID: 25124531 DOI: 10.1016/j.maturitas.2014.07.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Revised: 07/02/2014] [Accepted: 07/08/2014] [Indexed: 01/28/2023]
Abstract
Osteoporosis (OP) and osteoarthritis (OA) are the most prevalent musculoskeletal disorders in the elderly but the relationship between them is unclear. The purposes of this study are to analyze the bone turnover markers (BTM), bone mineral density (BMD) and the structural and mechanical properties of trabecular bone in patients with OP and OA, and to explore the relationship between these two diseases. We studied 12 OP patients and 13 OA patients. We analyzed BTM (β-CrossLaps and PINP), BMD and microstructural and biomechanical parameters (micro-CT). Our results were: OP group has higher levels of β-CrossLaps and lower BMD at the femoral neck. Also, OP patients have a decreased volume of trabecular bone and less trabecular number, with architecture showing prevalence of rod-like trabeculae and worse connectivity than OA patients. The biomechanical parameters were worse in OP patients. BMD was correlated with almost all the structural and biomechanical parameters. Moreover, β-CrossLaps was negatively correlated with hip BMD and with bone surface density and positively with trabecular separation. BTM, BMD and bone microstructural changes in osteoporosis are opposite to those of OA. These findings justify a less resistant bone with higher risk of fragility fractures in OP patients. These histomorphometric and biomechanical changes may be suspected by measuring of BMD and β-CrossLaps levels.
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Affiliation(s)
- M José Montoya
- Medicine Department, University of Seville, Avda. Dr. Fedriani s/n, 41009 Sevilla, Spain.
| | - Mercè Giner
- Medicine Department, University of Seville, Avda. Dr. Fedriani s/n, 41009 Sevilla, Spain; Bone Metabolism Unit, Department of Internal Medicine, "Virgen Macarena" University Hospital, Seville, Spain.
| | - Cristina Miranda
- Bone Metabolism Unit, Department of Internal Medicine, "Virgen Macarena" University Hospital, Seville, Spain
| | - M Angeles Vázquez
- Medicine Department, University of Seville, Avda. Dr. Fedriani s/n, 41009 Sevilla, Spain
| | - José R Caeiro
- Department of Orthopaedic Surgery, Complexo Hospitalario Universitario de Santiago de Compostela, A Coruña, Spain; Trabeculae(®), Parque Tecnolóxico de Galicia, 32900 San Cibrao das Viñas, Ourense, Spain
| | - David Guede
- Trabeculae(®), Parque Tecnolóxico de Galicia, 32900 San Cibrao das Viñas, Ourense, Spain
| | - Ramón Pérez-Cano
- Medicine Department, University of Seville, Avda. Dr. Fedriani s/n, 41009 Sevilla, Spain; Bone Metabolism Unit, Department of Internal Medicine, "Virgen Macarena" University Hospital, Seville, Spain
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Dusad A, Thiele GM, Klassen LW, Gleason AM, Bauer C, Mikuls TR, Duryee MJ, West WW, Romberger DJ, Poole JA. Organic dust, lipopolysaccharide, and peptidoglycan inhalant exposures result in bone loss/disease. Am J Respir Cell Mol Biol 2013; 49:829-36. [PMID: 23782057 DOI: 10.1165/rcmb.2013-0178oc] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Skeletal health consequences associated with chronic inflammatory respiratory disease, and particularly chronic obstructive pulmonary disease (COPD), contribute to overall disease morbidity. Agricultural environmental exposures induce significant airway diseases, including COPD. However, animal models to understand inhalant exposure-induced lung injury and bone disease have not been described. Using micro-computed tomography (micro-CT) imaging technology and histology, bone quantity and quality measurements were investigated in mice after repetitive intranasal inhalation exposures to complex organic dust extracts (ODEs) from swine confinement facilities. Comparison experiments with LPS and peptidoglycan (PGN) alone were also performed. After 3 weeks of repetitive ODE inhalation exposure, significant loss of bone mineral density and trabecular bone volume fraction was evident, with altered morphological microarchitecture changes in the trabecular bone, compared with saline-treated control animals. Torsional resistance was also significantly reduced. Compared with saline treatment, ODE-treated mice demonstrated decreased collagen and proteoglycan content in their articular cartilage, according to histopathology. Significant bone deterioration was also evident after repetitive intranasal inhalant treatment with LPS and PGN. These findings were not secondary to animal distress, and not entirely dependent on the degree of induced lung parenchymal inflammation. Repetitive LPS treatment demonstrated the most pronounced changes in bone parameters, and PGN treatment resulted in the greatest lung parenchymal inflammatory changes. Collectively, repetitive inhalation exposures to noninfectious inflammatory agents such as complex organic dust, LPS, and PGN resulted in bone loss. This animal model may contribute to efforts toward understanding the mechanisms and evaluating the therapeutics associated with adverse skeletal health consequences after subchronic airway injury.
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