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Liphardt AM, Godonou ET, Dreiner M, Mündermann A, Tascilar K, Djalal N, Heer M, Schett G, Zaucke F, Niehoff A. Immobilization by 21 days of bed rest results in type II collagen degradation in healthy individuals. Osteoarthritis Cartilage 2024; 32:177-186. [PMID: 37989468 DOI: 10.1016/j.joca.2023.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 11/02/2023] [Accepted: 11/15/2023] [Indexed: 11/23/2023]
Abstract
OBJECTIVE To investigate the effects of 21 days of bed rest immobilization (with and without exercise and nutrition interventions) on type II collagen biomarker concentrations in healthy individuals. DESIGN Twelve healthy male participants (age 34.2 ± 8.3 years; body mass index 22.4 ± 1.7 kg/m²) were exposed to 6 days ambulatory baseline data collection (BDC), 21 days head-down-tilt bed rest (HDT, CON) + interventions (HDT + resistive vibration exercise (2 times/week, 25 minutes): RVE; HDT + RVE + whey protein (0.6 g/kg body weight/day) and bicarbonate supplementation (90 mmol KHCO3/day: NeX), and 6 days of re-ambulation (R) in a cross-over designed study. The starting HDT condition was randomized (CON-RVE-NEX, RVE-NEX-CON, NEX-CON-RVE). Blood and urine samples were collected before, during, and after HDT. Serum concentrations (s) of CPII, C2C, C1,2C, and urinary concentrations (u) of CTX-II and Coll2-1NO2 were measured. RESULTS Twenty-one days of HDT resulted in increased sCPII (p < 0.001), sC2C (p < 0.001), and sC1,2C (p = 0.001) (highest increases: sCPII (+24.2% - HDT5), sC2C (+24.4% - HDT7), sC1,2C (+13.5% - HDT2). sC2C remained elevated at R+1 (p = 0.002) and R+6 (p < 0.001) compared to baseline. NeX led to lower sCPII (p < 0.001) and sC1,2C (p = 0.003) compared to CON. uCTX-II (second void and 24-hour urine) increased during HDT (p < 0.001, highest increase on HDT21: second void +82.8% (p < 0.001); 24-hour urine + 77.8% (p < 0.001). NeX resulted in lower uCTX-II concentrations in 24-hour urine (p = 0.012) compared to CON. CONCLUSIONS Twenty-one days of bed rest immobilization results in type II collagen degradation that does not recover within 6 days of resuming ambulation. The combination of resistive vibration exercise and protein/bicarbonate supplementation minimally counteracted this effect.
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Affiliation(s)
- Anna-Maria Liphardt
- Department of Internal Medicine 3 - Rheumatology & Immunology, Universitätsklinikum Erlangen & Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Deutsches Zentrum Immuntherapie (DZI), Universitätsklinikum Erlangen & Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.
| | - Elie-Tino Godonou
- Department of Internal Medicine 3 - Rheumatology & Immunology, Universitätsklinikum Erlangen & Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Deutsches Zentrum Immuntherapie (DZI), Universitätsklinikum Erlangen & Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.
| | - Maren Dreiner
- Institute of Biomechanics and Orthopaedics, German Sport University Cologne, Köln, Germany.
| | - Annegret Mündermann
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel Switzerland; Department of Spine Surgery, University Hospital Basel, Basel, Switzerland; Department of Biomedical Engineering, University of Basel, Basel, Switzerland; Department of Clinical Research, University of Basel, Basel, Switzerland.
| | - Koray Tascilar
- Department of Internal Medicine 3 - Rheumatology & Immunology, Universitätsklinikum Erlangen & Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Deutsches Zentrum Immuntherapie (DZI), Universitätsklinikum Erlangen & Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.
| | - Nadja Djalal
- Department of Internal Medicine 3 - Rheumatology & Immunology, Universitätsklinikum Erlangen & Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Deutsches Zentrum Immuntherapie (DZI), Universitätsklinikum Erlangen & Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.
| | - Martina Heer
- IU International University of Applied Sciences, Health Sciences, Erfurt, Germany; Department of Nutrition and Food Science, Nutritional Physiology, University of Bonn, Bonn, Germany.
| | - Georg Schett
- Department of Internal Medicine 3 - Rheumatology & Immunology, Universitätsklinikum Erlangen & Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Deutsches Zentrum Immuntherapie (DZI), Universitätsklinikum Erlangen & Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.
| | - Frank Zaucke
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Department of Orthopaedics (Friedrichsheim), University Hospital Frankfurt, Goethe University, Frankfurt, Germany.
| | - Anja Niehoff
- Institute of Biomechanics and Orthopaedics, German Sport University Cologne, Köln, Germany; Cologne Center for Musculoskeletal Biomechanics, Faculty of Medicine and University Hospital Cologne, University of Cologne, Köln, Germany.
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Borić I, Hudetz D, Rod E, Jeleč Ž, Vrdoljak T, Skelin A, Polašek O, Plečko M, Trbojević-Akmačić I, Lauc G, Primorac D. A 24-Month Follow-Up Study of the Effect of Intra-Articular Injection of Autologous Microfragmented Fat Tissue on Proteoglycan Synthesis in Patients with Knee Osteoarthritis. Genes (Basel) 2019; 10:genes10121051. [PMID: 31861180 PMCID: PMC6947241 DOI: 10.3390/genes10121051] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 12/03/2019] [Accepted: 12/11/2019] [Indexed: 12/23/2022] Open
Abstract
Osteoarthritis (OA) is a widely prevalent disease worldwide, and with an increasingly ageing society, it has become a challenge for the field of regenerative medicine. OA is a disease process involving multiple joint tissues, including those not visible on radiography, and is a complex disease process with multiple phenotypes that require evaluation by a multimodality imaging assessment. The purpose of this study was to evaluate the effect of micro-fragmented fat tissue intra-articular injection 24 months after application in two ways: Indirectly using functional magnetic resonance imaging (MRI) assessment analyzing the glycosaminoglycans (GAG) content in cartilage by means of delayed gadolinium (Gd)-enhanced magnetic resonance imaging of cartilage (dGEMRIC), as well as clinical outcome on observed level of GAG using standard orthopedic physical examination including VAS assessment. In our previous study assessing comprehensive results after 12 months, the dGEMRIC results have drawn attention. The present study explores the long-term effect of intra-articular injection of autologous microfragmented adipose tissue to host chondrocytes and cartilage proteoglycans in patients with knee OA. A prospective, non-randomized, interventional, single-center, open-label clinical trial was conducted from January 2016 to April 2018. A total of 17 patients were enrolled in the study, and 32 knees were assessed in a 12-month follow-up, but only 10 patients of them with 18 knees are included in a 24-month follow-up. The rest of the seven patients dropped out of the study 12 months after follow-up: three patients underwent knee arthroplasty, and the remaining four did not fulfil the basic criteria of 24 months involvement in the study. Surgical intervention (lipoaspiration), followed by tissue processing and intra-articular injection of the final microfragmented adipose tissue product into the affected knee(s), was performed in all patients. Patients were assessed for a visual analog scale (VAS), dGEMRIC at the baseline, three, six, 12 and 24 months after the treatment. A magnetic resonance sequence in dGEMRIC due to infiltration of the anionic, negatively-charged contrast gadopentetate dimeglumine (Gd-DTPA2) into the cartilage indicated that the contents of cartilage glycosaminoglycans significantly increased in specific areas of the treated knee joint. Our results suggest that this method of single intra-articular injection of autologous microfragmented adipose tissue improves GAG content on a significant scale, with over half of the measurements suggesting relevant improvement 24 months after intra-articular injection opposed to the expected GAG decrease over the natural course of the disease.
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Affiliation(s)
- Igor Borić
- St. Catherine Specialty Hospital, 49210 Zabok/10000 Zagreb, Croatia; (D.H.); (E.R.); (Ž.J.); (A.S.)
- School of Medicine, University of Split, 21000 Split, Croatia
- Medical School, University of Rijeka, 51000 Rijeka, Croatia
- School of Medicine, University of Mostar, 88000 Mostar, Bosnia and Herzegovina
- Correspondence: (I.B.); (D.P.); Tel.: +385-98-624-266 (I.B.); +385-98-470-710 (D.P.)
| | - Damir Hudetz
- St. Catherine Specialty Hospital, 49210 Zabok/10000 Zagreb, Croatia; (D.H.); (E.R.); (Ž.J.); (A.S.)
- Clinical Hospital “Sveti Duh”, 10000 Zagreb, Croatia;
- School of Medicine, JJ Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Eduard Rod
- St. Catherine Specialty Hospital, 49210 Zabok/10000 Zagreb, Croatia; (D.H.); (E.R.); (Ž.J.); (A.S.)
- School of Medicine, JJ Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Željko Jeleč
- St. Catherine Specialty Hospital, 49210 Zabok/10000 Zagreb, Croatia; (D.H.); (E.R.); (Ž.J.); (A.S.)
- School of Medicine, JJ Strossmayer University of Osijek, 31000 Osijek, Croatia
- Department of Nursing, University North, 48 000 Varaždin, Croatia
| | - Trpimir Vrdoljak
- Clinical Hospital “Sveti Duh”, 10000 Zagreb, Croatia;
- School of Medicine, JJ Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Andrea Skelin
- St. Catherine Specialty Hospital, 49210 Zabok/10000 Zagreb, Croatia; (D.H.); (E.R.); (Ž.J.); (A.S.)
- Genos Glycoscience Research Laboratory, 10000 Zagreb, Croatia; (I.T.-A.); (G.L.)
| | - Ozren Polašek
- School of Medicine, University of Split, 21000 Split, Croatia
| | - Mihovil Plečko
- St. Catherine Specialty Hospital, 49210 Zabok/10000 Zagreb, Croatia; (D.H.); (E.R.); (Ž.J.); (A.S.)
| | | | - Gordan Lauc
- Genos Glycoscience Research Laboratory, 10000 Zagreb, Croatia; (I.T.-A.); (G.L.)
- Faculty of Pharmacy and Biochemistry, University of Zagreb, 10000 Zagreb, Croatia
| | - Dragan Primorac
- St. Catherine Specialty Hospital, 49210 Zabok/10000 Zagreb, Croatia; (D.H.); (E.R.); (Ž.J.); (A.S.)
- School of Medicine, University of Split, 21000 Split, Croatia
- Medical School, University of Rijeka, 51000 Rijeka, Croatia
- School of Medicine, University of Mostar, 88000 Mostar, Bosnia and Herzegovina
- School of Medicine, JJ Strossmayer University of Osijek, 31000 Osijek, Croatia
- Children’s Hospital Srebrnjak, 10000 Zagreb, Croatia
- Eberly College of Science, The Pennsylvania State University, University Park, State College, PA 16802, USA
- The Henry C. Lee College of Criminal Justice and Forensic Sciences, University of New Haven, West Haven, CT 06516, USA
- School of Medicine, Faculty of Dental Medicine and Health, University “Josip Juraj Strossmayer”, 31000 Osijek, Croatia
- Correspondence: (I.B.); (D.P.); Tel.: +385-98-624-266 (I.B.); +385-98-470-710 (D.P.)
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Trattnig S, Raudner M, Schreiner M, Roemer F, Bohndorf K. [Biochemical cartilage imaging-update 2019]. Radiologe 2019; 59:742-749. [PMID: 31187160 DOI: 10.1007/s00117-019-0558-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
BACKGROUND Cartilage imaging using magnetic resonance imaging (MRI) is increasingly used for early detection of cartilage damage. Biochemical MR methods to assess cartilage damage are essential for optimal treatment planning. PURPOSE The aim of this review is to provide an update on advanced cartilage imaging based on biochemical MR techniques. The clinical applications and additional benefits compared to conventional MRI are presented. MATERIALS AND METHODS A literature search of PubMed regarding the clinical applications of various biochemical MR methods and morphological MR imaging was performed. RESULTS While T2 mapping can be easily implemented on clinical routine MR scanners, the T1rho method is technically more demanding and is not available on all MR scanners. dGEMRIC, which can be performed with all field strengths, is now severely restricted due to the recent decision of the European Medical Agency (EMA) to withdraw linear gadolinium contrast agents from the market because of proven gadolinium deposition in the brain. Sodium imaging is the most sensitive MRI method for glycosaminoglycan (GAG), but is limited to 7 T. In addition to early diagnosis of cartilage degeneration before morphological changes are visible, biochemical MRI offers predictive markers, e.g., effect of lifestyle changes or assessing results of cartilage repair surgery. CONCLUSION Cartilage imaging based on biochemical MRI allows a shift from qualitative to quantitative MRI. Biochemical MRI plays an increasingly important role in the early diagnosis of cartilage degeneration for monitoring of disease-modifying drugs and as predictive imaging biomarker in clinical diagnostics. In cartilage repair, monitoring of the efficacy of different cartilage repair surgery techniques to develop hyaline-like cartilage can be performed with biochemical MRI.
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Affiliation(s)
- S Trattnig
- Exzellenzzentrum für Hochfeld MR, Universitätsklinik für Radiologie und Nuklearmedizin, Medizinische Universität Wien, Lazarettgasse 14, 1090, Wien, Österreich.
| | - M Raudner
- Exzellenzzentrum für Hochfeld MR, Universitätsklinik für Radiologie und Nuklearmedizin, Medizinische Universität Wien, Lazarettgasse 14, 1090, Wien, Österreich
| | - M Schreiner
- Universitätsklinik für Orthopädie und Unfallchirurgie, Medizinische Universität Wien, Währinger Gürtel 18-20, 1090, Wien, Österreich
| | - F Roemer
- Radiologisches Institut, Universitätsklinikum Erlangen, Maximiliansplatz 3, 91054, Erlangen, Deutschland
| | - K Bohndorf
- Exzellenzzentrum für Hochfeld MR, Universitätsklinik für Radiologie und Nuklearmedizin, Medizinische Universität Wien, Lazarettgasse 14, 1090, Wien, Österreich
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Zhang M, Zhen J, Zhang X, Yang Z, Zhang L, Hao D, Ren B. Effect of Autologous Platelet-Rich Plasma and Gelatin Sponge for Tendon-to-Bone Healing After Rabbit Anterior Cruciate Ligament Reconstruction. Arthroscopy 2019; 35:1486-1497. [PMID: 30979627 DOI: 10.1016/j.arthro.2018.11.014] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 11/05/2018] [Accepted: 11/05/2018] [Indexed: 02/02/2023]
Abstract
PURPOSE To investigate platelet-rich plasma (PRP) combined with gelatin sponge (GS) to improve tendon-bone interface healing and structure formation. METHODS Characterization of the GS scaffold was performed with a scanning electron microscope, and the release curve after loading with PRP was evaluated. A real-time reverse transcription quantitative polymerase chain reaction assay was performed to test the levels of tendon-to-bone healing-related gene expression. Finally, 18 New Zealand white rabbits were randomly divided into 3 groups and underwent semitendinosus autograft anterior cruciate ligament reconstruction: autograft group without PRP, PRP group, and PRP-GS group. All rabbits were killed 8 weeks after the operation. Magnetic resonance imaging scans, biomechanical testing, and histologic evaluation were performed. RESULTS An enzyme-linked immunosorbent assay and cell counting kit-8 assay showed that the GS could control the release of PRP and prolong its bioactivity time, as well as promote bone marrow mesenchymal stem cell proliferation. In the PRP-GS group, the levels of related genes were upregulated compared with the PRP group (P < .05). Lower signal in the magnetic resonance images indicated fibrocartilage formation in the 2 groups with PRP. In addition, histologic staining showed that the tendon-bone connection had a greater fibrocartilaginous transition region in the PRP-GS group, and the histologic scores were higher (vs the PRP group, P = .039). The maximum failure load and stiffness were higher in the PRP-GS group than in the other 2 groups. CONCLUSIONS GS loading with PRP could prolong the bioactivity time of PRP and promote bone marrow mesenchymal stem cell proliferation and osteogenic gene expression in vitro. It also promoted the early healing process at the tendon-bone junction in a rabbit anterior cruciate ligament reconstruction model. CLINICAL RELEVANCE GS is a natural material and offers satisfactory biocompatibility. Using GS as a scaffold to control the release of bioactive factors in bone tunnels may be useful, but additional studies in human subjects will be necessary to evaluate its clinical prospects.
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Affiliation(s)
- Mingyu Zhang
- Sports Medicine Center, Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Jiang Zhen
- Sports Medicine Center, Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Xian Zhang
- Sports Medicine Center, Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Zhen Yang
- Sports Medicine Center, Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Liang Zhang
- Sports Medicine Center, Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Dinjun Hao
- Sports Medicine Center, Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Bo Ren
- Sports Medicine Center, Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, China.
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Alizai H, Chang G, Regatte RR. MR Imaging of the Musculoskeletal System Using Ultrahigh Field (7T) MR Imaging. PET Clin 2019; 13:551-565. [PMID: 30219187 DOI: 10.1016/j.cpet.2018.05.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
MR imaging is an indispensable instrument for the diagnosis of musculoskeletal diseases. In vivo MR imaging at 7T offers many advantages, including increased signal-to-noise ratio, higher spatial resolution, improved spectral resolution for spectroscopy, improved sensitivity for X-nucleus imaging, and decreased image acquisition times. There are also however technical challenges of imaging at a higher field strength compared with 1.5 and 3T MR imaging systems. We discuss the many potential opportunities as well as the challenges presented by 7T MR imaging systems and highlight recent developments in in vivo research imaging of musculoskeletal applications in general and cartilage, skeletal muscle, and bone in particular.
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Affiliation(s)
- Hamza Alizai
- Department of Radiology, New York University Langone Medical Center, 660 First Avenue, New York, NY 10016, USA.
| | - Gregory Chang
- Department of Radiology, New York University Langone Medical Center, 660 First Avenue, New York, NY 10016, USA
| | - Ravinder R Regatte
- Department of Radiology, New York University Langone Medical Center, 660 First Avenue, New York, NY 10016, USA
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Rehnitz C, Klaan B, Do T, Barié A, Kauczor HU, Weber MA. Feasibility of gadoteric acid for delayed gadolinium-enhanced MRI of cartilage (dGEMRIC) at the wrist and knee and comparison with Gd-DTPA. J Magn Reson Imaging 2017; 46:1433-1440. [DOI: 10.1002/jmri.25688] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 02/10/2017] [Indexed: 12/20/2022] Open
Affiliation(s)
- Christoph Rehnitz
- Department of Diagnostic and Interventional Radiology; University Hospital Heidelberg; Germany
| | - Bastian Klaan
- Department of Diagnostic and Interventional Radiology; University Hospital Heidelberg; Germany
| | - Thuy Do
- Department of Diagnostic and Interventional Radiology; University Hospital Heidelberg; Germany
| | - Alexander Barié
- Department of Orthopedics and Trauma Surgery; University Hospital Heidelberg; Germany
| | - Hans-Ulrich Kauczor
- Department of Diagnostic and Interventional Radiology; University Hospital Heidelberg; Germany
| | - Marc-André Weber
- Department of Diagnostic and Interventional Radiology; University Hospital Heidelberg; Germany
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Miller RH, Krupenevich RL, Pruziner AL, Wolf EJ, Schnall BL. Medial knee joint contact force in the intact limb during walking in recently ambulatory service members with unilateral limb loss: a cross-sectional study. PeerJ 2017; 5:e2960. [PMID: 28168120 PMCID: PMC5292027 DOI: 10.7717/peerj.2960] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 01/05/2017] [Indexed: 01/04/2023] Open
Abstract
Background Individuals with unilateral lower limb amputation have a high risk of developing knee osteoarthritis (OA) in their intact limb as they age. This risk may be related to joint loading experienced earlier in life. We hypothesized that loading during walking would be greater in the intact limb of young US military service members with limb loss than in controls with no limb loss. Methods Cross-sectional instrumented gait analysis at self-selected walking speeds with a limb loss group (N = 10, age 27 ± 5 years, 170 ± 36 days since last surgery) including five service members with transtibial limb loss and five with transfemoral limb loss, all walking independently with their first prosthesis for approximately two months. Controls (N = 10, age 30 ± 4 years) were service members with no overt demographical risk factors for knee OA. 3D inverse dynamics modeling was performed to calculate joint moments and medial knee joint contact forces (JCF) were calculated using a reduction-based musculoskeletal modeling method and expressed relative to body weight (BW). Results Peak JCF and maximum JCF loading rate were significantly greater in limb loss (184% BW, 2,469% BW/s) vs. controls (157% BW, 1,985% BW/s), with large effect sizes. Results were robust to probabilistic perturbations to the knee model parameters. Discussion Assuming these data are reflective of joint loading experienced in daily life, they support a “mechanical overloading” hypothesis for the risk of developing knee OA in the intact limb of limb loss subjects. Examination of the evolution of gait mechanics, joint loading, and joint health over time, as well as interventions to reduce load or strengthen the ability of the joint to withstand loads, is warranted.
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Affiliation(s)
- Ross H Miller
- Department of Kinesiology, University of Maryland, College Park, MD, United States; Neuroscience & Cognitive Science Program, University of Maryland, College Park, MD, United States
| | - Rebecca L Krupenevich
- Department of Kinesiology, University of Maryland , College Park , MD , United States
| | - Alison L Pruziner
- Department of Kinesiology, University of Maryland, College Park, MD, United States; Walter Reed National Military Medical Center, Bethesda, MD, United States; DoD-VA Extremity Trauma and Amputation Center of Excellence, Bethesda, MD, United States; Department of Rehabilitation, Uniformed Services University of the Health Sciences, Bethesda, MD, United States
| | - Erik J Wolf
- Walter Reed National Military Medical Center, Bethesda, MD, United States; DoD-VA Extremity Trauma and Amputation Center of Excellence, Bethesda, MD, United States; Department of Rehabilitation, Uniformed Services University of the Health Sciences, Bethesda, MD, United States
| | - Barri L Schnall
- Walter Reed National Military Medical Center , Bethesda , MD , United States
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Hyldahl RD, Evans A, Kwon S, Ridge ST, Robinson E, Hopkins JT, Seeley MK. Running decreases knee intra-articular cytokine and cartilage oligomeric matrix concentrations: a pilot study. Eur J Appl Physiol 2016; 116:2305-2314. [PMID: 27699484 DOI: 10.1007/s00421-016-3474-z] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 09/08/2016] [Indexed: 11/27/2022]
Abstract
INTRODUCTION Regular exercise protects against degenerative joint disorders, yet the mechanisms that underlie these benefits are poorly understood. Chronic, low-grade inflammation is widely implicated in the onset and progression of degenerative joint disease. PURPOSE To examine the effect of running on knee intra-articular and circulating markers of inflammation and cartilage turnover in healthy men and women. METHODS Six recreational runners completed a running (30 min) and control (unloaded for 30 min) session in a counterbalanced order. Synovial fluid (SF) and serum samples were taken before and after each session. Cytokine concentration was measured in SF and serum using a multiplexed cytokine magnetic bead array. Ground reaction forces were measured during the run. RESULTS There were no changes in serum or SF cytokine concentration in the control condition. The cytokine GM-CSF decreased from 10.7 ± 9.8 to 6.2 ± 5.9 pg/ml pre- to post-run (p = 0.03). IL-15 showed a trend for decreasing concentration pre- (6.7 ± 7.5 pg/ml) to post-run (4.3 ± 2.7 pg/ml) (p = 0.06). Changes in IL-15 concentration negatively correlated with the mean number of foot strikes during the run (r 2 = 0.67; p = 0.047). The control condition induced a decrease in serum COMP and an increase in SF COMP, while conversely the run induced an increase in serum COMP and a decrease in SF COMP. Changes in serum and SF COMP pre- to post-intervention were inversely correlated (r 2 = 0.47; p = 0.01). CONCLUSIONS Running appears to decrease knee intra-articular pro-inflammatory cytokine concentration and facilitates the movement of COMP from the joint space to the serum.
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Affiliation(s)
- Robert D Hyldahl
- Department of Exercise Sciences, Brigham Young University, 106 SFH, Provo, 84602, UT, USA.
| | - Alyssa Evans
- Department of Exercise Sciences, Brigham Young University, 106 SFH, Provo, 84602, UT, USA
| | - Sunku Kwon
- Department of Exercise Sciences, Brigham Young University, 106 SFH, Provo, 84602, UT, USA
| | - Sarah T Ridge
- Department of Exercise Sciences, Brigham Young University, 106 SFH, Provo, 84602, UT, USA
| | - Eric Robinson
- Utah Valley Sports Medicine and Orthopedics, Provo, UT, USA
| | - J Ty Hopkins
- Department of Exercise Sciences, Brigham Young University, 106 SFH, Provo, 84602, UT, USA
| | - Matthew K Seeley
- Department of Exercise Sciences, Brigham Young University, 106 SFH, Provo, 84602, UT, USA
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Load distribution in early osteoarthritis. Knee Surg Sports Traumatol Arthrosc 2016; 24:1815-25. [PMID: 27085358 DOI: 10.1007/s00167-016-4123-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 03/29/2016] [Indexed: 01/30/2023]
Abstract
Total knee replacement is an accepted standard of care for the treatment of advanced knee osteoarthritis with good results in the vast majority of older patients. The use in younger and more active populations, however, remains controversial due to concerns over activity restrictions, implant survival, and patient satisfaction with the procedure. It is in these younger patient populations that alternatives to arthroplasty are increasingly being explored. Historically, osteotomy was utilized to address unicompartmental pain from degeneration and overload, for example, after meniscectomy. Utilization rates of osteotomy have fallen in recent years due to the increasing popularity of partial and total knee arthroplasty. This article explores the indications and outcomes of traditional unloading osteotomy, as well as newer options that are less invasive and offer faster return to function.
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Årøen A, Brøgger H, Røtterud JH, Sivertsen EA, Engebretsen L, Risberg MA. Evaluation of focal cartilage lesions of the knee using MRI T2 mapping and delayed Gadolinium Enhanced MRI of Cartilage (dGEMRIC). BMC Musculoskelet Disord 2016; 17:73. [PMID: 26868015 PMCID: PMC4751750 DOI: 10.1186/s12891-016-0941-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Accepted: 02/10/2016] [Indexed: 11/17/2022] Open
Abstract
Background Assessment of degenerative changes of the cartilage is important in knee cartilage repair surgery. Magnetic Resonance Imaging (MRI) T2 mapping and delayed Gadolinium Enhanced MRI of Cartilage (dGEMRIC) are able to detect early degenerative changes. The hypothesis of the study was that cartilage surrounding a focal cartilage lesion in the knee does not possess degenerative changes. Methods Twenty-eight consecutive patients included in a randomized controlled trial on cartilage repair were evaluated using MRI T2 mapping and dGEMRIC before cartilage treatment was initiated. Inclusion was based on disabling knee problems (Lysholm score of ≤ 75) due to an arthroscopically verified focal femoral condyle cartilage lesion. Furthermore, no major malalignments or knee ligament injuries were accepted. Mean patient age was 33 ± 9.6 years, and the mean duration of knee symptoms was 49 ± 60 months. The MRI T2 mapping and the dGEMRIC measurements were performed at three standardized regions of interest (ROIs) at the medial and lateral femoral condyle, avoiding the cartilage lesion Results The MRI T2 mapping of the cartilage did not demonstrate significant differences between condyles with or without cartilage lesions. The dGEMRIC results did not show significantly lower values of the affected condyle compared with the opposite condyle and the contra-lateral knee in any of the ROIs. The intraclass correlation coefficient (ICC) of the dGEMRIC readings was 0.882. Conclusion The MRI T2 mapping and the dGEMRIC confirmed the arthroscopic findings that normal articular cartilage surrounded the cartilage lesion, reflecting normal variation in articular cartilage quality. Study identifier NCT00885729, registered April 17 2009. Electronic supplementary material The online version of this article (doi:10.1186/s12891-016-0941-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Asbjørn Årøen
- Department of Orthopedic Surgery, Akershus University Hospital, 1478, Lørenskog, Norway. .,Oslo Sports Trauma Research Center, The Norwegian School of Sport Sciences, Pb 4014 Ullevål Stadion, Oslo, Norway. .,Institute of Clinical Medicine, Campus Ahus, University of Oslo, 1478, Lørenskog, Norway.
| | - Helga Brøgger
- Department of Radiology, Oslo University Hospital Ullevål, Kirkeveien 166, 0450, Oslo, Norway
| | - Jan Harald Røtterud
- Department of Orthopedic Surgery, Akershus University Hospital, 1478, Lørenskog, Norway
| | - Einar Andreas Sivertsen
- Department of Orthopedic Surgery, Diakonhjemmet Hospital, Pb 23, Vindern, 0319, Oslo, Norway
| | - Lars Engebretsen
- Oslo Sports Trauma Research Center, The Norwegian School of Sport Sciences, Pb 4014 Ullevål Stadion, Oslo, Norway.,Department of Orthopedic Surgery, Oslo University Hospital Ullevål, Kirkeveien 166, 0450, Oslo, Norway
| | - May Arna Risberg
- Norwegian Research Center for Active Rehabilitation, Department of Orthopedic Surgery, Oslo University Hospital Ullevål, Kirkeveien 166, 0450, Oslo, Norway
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Guermazi A, Alizai H, Crema MD, Trattnig S, Regatte RR, Roemer FW. Compositional MRI techniques for evaluation of cartilage degeneration in osteoarthritis. Osteoarthritis Cartilage 2015; 23:1639-53. [PMID: 26050864 DOI: 10.1016/j.joca.2015.05.026] [Citation(s) in RCA: 155] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 04/26/2015] [Accepted: 05/25/2015] [Indexed: 02/02/2023]
Abstract
Osteoarthritis (OA), a leading cause of disability, affects 27 million people in the United States and its prevalence is rising along with the rise in obesity. So far, biomechanical or behavioral interventions as well as attempts to develop disease-modifying OA drugs have been unsuccessful. This may be partly due to antiquated imaging outcome measures such as radiography, which are still endorsed by regulatory agencies such as the United States Food and Drug Administration (FDA) for use in clinical trials. Morphological magnetic resonance imaging (MRI) allows unparalleled multi-feature assessment of the OA joint. Furthermore, advanced MRI techniques also enable evaluation of the biochemical or ultrastructural composition of articular cartilage relevant to OA research. These compositional MRI techniques have the potential to supplement clinical MRI sequences in identifying cartilage degeneration at an earlier stage than is possible today using morphologic sequences only. The purpose of this narrative review is to describe compositional MRI techniques for cartilage evaluation, which include T2 mapping, T2* Mapping, T1 rho, dGEMRIC, gagCEST, sodium imaging and diffusion weighted imaging (DWI). We also reviewed relevant clinical studies that have utilized these techniques for the study of OA. The different techniques are complementary. Some focus on isotropy or the collagen network (e.g., T2 mapping) and others are more specific in regard to tissue composition, e.g., gagCEST or dGEMRIC that convey information on the GAG concentration. The application and feasibility of these techniques is also discussed, as they will play an important role in implementation in larger clinical trials and eventually clinical practice.
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Affiliation(s)
- A Guermazi
- Department of Radiology, Boston University School of Medicine, Boston, MA, USA; Department of Research, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar.
| | - H Alizai
- Department of Radiology, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA; Department of Radiology, New York University Langone Medical Center, New York, NY, USA
| | - M D Crema
- Department of Radiology, Boston University School of Medicine, Boston, MA, USA; Department of Research, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar; Department of Radiology, Hospital do Coração and Teleimagem, São Paulo, Brazil
| | - S Trattnig
- Department of Biomedical Imaging and Image Guided Therapy, Medical University of Vienna, Vienna, Austria
| | - R R Regatte
- Department of Radiology, New York University Langone Medical Center, New York, NY, USA
| | - F W Roemer
- Department of Radiology, Boston University School of Medicine, Boston, MA, USA; Department of Research, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar; Department of Radiology, University of Erlangen, Erlangen, Germany
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