上腕二頭筋長頭腱腱鞘の低エコー領域

抄録

We have previously reported on the low echogenic space which existed in the biceps sheaths among the shoulders of disabled patients. The purpose of this study is to delineate if the low echogenic space in the biceps sheath results from intra-articular hydrops and to characterize the low echogenicity found in each shoulder lesion. Three healthy shoulders were examined sonogenically around the space of the biceps tendon and the space between th joint capsule and the humerus head at the axilla. After an intra-articular injection of contrast medium, a low echogenic space around the biceps tendon and an increased space at the axilla were seen. Since then we have considered the low echogenic space of the biceps tendon sheath means an intra-articular effusion of sholder. Patients with pain in the sholder had a low echogenic space with existed in 30% of tenosynvitis of the biceps tendon,17% of the rotator cuff tears and so on. The low echogenicity at the biceps tendon sheath in rotator cuff tears was larger than in other sholder lesion.