外傷性上腕二頭筋長頭腱脱臼 : 診断上の問題について The Traumatic Dislocation of the Tendon of the Long Head of the Biceps : A Characteristic Finding

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[Purpose] We wish to report traumatic dislocation of the tendon of the long head of the biceps(LHB)with a characteristic lesion.<BR>[Patients] Case 1: A 43-year-old female was injured by a direct blow on her shoulder while skiing. She was diagnosed as a dislocation of the LHB by arthroscopy. Case 2: A 32-year-old male was injured by a direct blow on his shoulder during a football match. He was diagnosed as a dislocation of LHB by the arthrography, CT arthrogram and MR arthrogram.<BR>[Results] In the operations, the LHB was incompletely dislocated from the bicipital groove (BG) in case-1 and dislocated in the tendon of the subscapularis muscle in case-2, injuries of the glenohumeral ligaments and the transverse humeral ligaments were seen. At the diagnostic arthroscopy and the operations, the cartilage-like tissue was peeled off the superior edge of the BG and the LHB lay between this tissue and the floor of the groove.<BR>[Conclusion] We consider that an avulsion of the cartilage-like tissue from the floor of the groove is a characteristic sign of a traumatic dislocation of the tendon of the long head of the biceps.

収録刊行物

  • 肩関節 = Shoulder joint

    肩関節 = Shoulder joint 23(2), 297-300, 1999-07-30

    日本肩関節学会

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