Heterotopic tendon mineralization (ossification or calcification), which may be a feature of tendinopathy or which may develop following surgical trauma (repair or graft harvest), has not received much attention. The purpose of this article is to review the prevalence, mechanisms and consequences of heterotopic tendon mineralization and to identify the gaps in our current understanding. We focus on endochondral heterotopic ossification and draw on knowledge of the mechanisms of this process in other tissues and conditions. Finally, we introduce a novel murine Achilles tendon needle injury model, which will enable us to further study the mechanisms and biomechanical consequences of tendon mineralization.
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http://dx.doi.org/10.1111/j.1365-2613.2012.00829.x | DOI Listing |
Calcif Tissue Int
January 2025
Endocrinology Department, School of Medicine, Pontificia Universidad Católica de Chile, Av. Diagonal Paraguay 262, Cuarto Piso, Santiago, Chile.
X-linked hypophosphatemia (XLH) is a rare metabolic disorder characterized by elevated FGF23 and chronic hypophosphatemia, leading to impaired skeletal mineralization and enthesopathies that are associated with pain, stiffness, and diminished quality of life. The natural history of enthesopathies in XLH remains poorly defined, partly due to absence of a sensitive quantitative tool for assessment and monitoring. This study investigates the utility of 18F-NaF PET/CT scans in characterizing enthesopathies in XLH subjects.
View Article and Find Full Text PDFClin Rheumatol
January 2025
Center for Physical Medicine and Rehabilitation, University Clinical Center of Serbia, Belgrade, Serbia.
Ectopic calcifications occur in tendons, ligaments, entheses, muscles, and fasciae, and are often associated with pain and inflammation. In clinical settings, these calcifications are commonly treated by physical therapy and/or surgical interventions. However, there is not enough understanding of pharmacological treatments as primary cures, supportive therapy to physical or surgical treatment, or even preventive measures to avoid or diminish the development of ectopic calcifications.
View Article and Find Full Text PDFACS Biomater Sci Eng
January 2025
Department of Orthopedics, Suzhou Wujiang District Hospital of Traditional Chinese Medicine (Suzhou Wujiang District Second People's Hospital), Suzhou 215200, China.
Rotator cuff tears are the most common conditions in sports medicine and attract increasing attention. Scar tissue healing at the tendon-bone interface results in a high rate of retears, making it a major challenge to enhance the healing of the rotator cuff tendon-bone interface. Biomaterials currently employed for tendon-bone healing in rotator cuff tears still exhibit limited efficacy.
View Article and Find Full Text PDFNPJ Regen Med
January 2025
Department of Orthopedic Surgery, Columbia University, New York, NY, USA.
A high prevalence of rotator cuff tears presents a major clinical challenge. A better understanding of the molecular mechanisms underlying enthesis development and healing is needed for developing treatments. We recently identified hedgehog (Hh)-lineage cells critical for enthesis development and repair.
View Article and Find Full Text PDFArthroscopy
December 2024
Sports Medicine Center, West China Hospital, Sichuan University, Chengdu, China; Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, China. Electronic address:
Purpose: To explore the potential of growth hormone-releasing peptide 2 (GHRP-2) for tendon-bone healing in a rat rotator cuff tear (RCT) model.
Methods: The impact of GHRP-2 on M1 macrophage polarization in vitro was determined using real-time polymerase chain reaction, Western blot, and immunofluorescence staining. GHRP-2 was then applied in a rat RCT model, and the healing of the tendon-bone interface was systemically evaluated by histologic staining, radiologic assessments, gait analysis, and biomechanical tests.
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