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Tendon Healing: A Review of Basic Science and Current Progress
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Young Woo Kwon, Pei Wei Wang, Jun-Ku Lee
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J Korean Fract Soc 2020;33(4):227-237. Published online October 31, 2020
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DOI: https://doi.org/10.12671/jkfs.2020.33.4.227
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 Abstract
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- The tendon connects the muscles to the bones and transmits the loads generated by the muscles to the bones to move the joints, support the joints, and provide stability to the joints. Approximately 30% of patients complaining of musculoskeletal pain are associated with tendon disease, and approximately 50% of musculoskeletal injuries are caused by a tendon injury. Despite this frequent treatment of tendon damage, studies on the basic biology that provide scientific evidence for treatment, such as development, tendon injury, and healing, are still very limited. This review first summarizes the classification and composition of the tendon identified so far, the surrounding tissue, and the blood supply to the tendon. The limitations of the tendon recovery process after a tendon injury are also discussed.
Finally, this review examines ways to improve tendon recovery and the biological approaches and tissue engineering that have been currently studied. In conclusion, innovative progress in promoting tendon healing has not been achieved despite the many advances in the basic structure of the tendon, and the cell and regulatory molecular factors involved in tendon recovery. Biological approaches and tissue engineering, which have become a recent issue, have shown many possibilities for the recovery of damaged cases, but further research will be needed until clinical application.
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Radiologic Analysis of Distal Radius Fracture Accompanying Spontaneous Extensor Pollicis Longus Rupture
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Jun Ku Lee, In Tae Hong, Young Woo Kwon, Gyu Chol Jang, Soo Hong Han
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J Korean Fract Soc 2017;30(2):63-68. Published online April 30, 2017
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DOI: https://doi.org/10.12671/jkfs.2017.30.2.63
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Abstract
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- PURPOSE
The spontaneous extensor pollicis longus (EPL) tendon rupture is a well-documented complication of non-displaced or minimally displaced distal radius fracture. Authors analyzed the radiographs of patients treated for closed EPL rupture after distal radius fracture.
MATERIALS AND METHODS
Twenty-eight patients (21 females, 7 males; average age of 58 years) with tendon transfer for spontaneous rupture of EPL after distal radius fracture were included. Wrist radiographs were taken at the first visit with EPL rupture. On the lateral view, posterior cortical displacement, distance from highest point in Lister's tubercle to fracture line, and height of the Lister's tubercle were measured. The distance from the lunate facet to the fracture line was measured on anteroposterior view. Radiologic change at the time of EPL rupture around the Lister's tubercle was evaluated by comparing it with the contra lateral wrist radiograph. Radial beak fracture pattern was also identified.
RESULTS
The interval between the injury and the spontaneous EPL rupture varied from 2 to 20 weeks, with an average of 6.7 weeks. There were 25 cases of non-displacement, 3 cases of mean 2.0 mm cortical displacement. The average distance from the lunate facet to the fracture line was 9.1 mm (3-12.1 mm), from the highest point in Lister's tubercle to the fracture line was 3.0 mm toward proximal radius (1.7-4.9 mm). The average height of the Lister's tubercle was 3.4 mm in the injured wrist and 3.1 mm in the opposite wrist. Radial beak fracture pattern was shown at 11 cases.
CONCLUSION
All cases presented no or minimal displaced fracture, and the fracture line was in the vicinity of the Lister's tubercle. Those kinds of fractures can highlight the possibility of spontaneous EPL rupture, depites its rarity.
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