Shimizu Togo, Itoi Eiji, Minagawa Hiroshi, Pradhan Rabindra L, Wakabayashi Ikuko, Sato Kozo
Department of Orthopedic Surgery, Akita University School of Medicine, Japan.
Acta Orthop Scand. 2002 Jan;73(1):40-3. doi: 10.1080/000164702317281387.
We determined the relationship between the site of rotator cuff tears and atrophy of the cuff muscles. 28 shoulders (28 patients) had rotator cuff tears: 19 isolated tears of the supraspinatus tendon (isolated-tear group) and 9 combined tears of the supraspinatus and infraspinatus tendons (combined-tear group). The cross-sectional area of the subscapularis, supraspinatus, the infraspinatus and teres minor muscles in the coronal oblique MR images were measured before and after surgery. Although we found no difference in tear size, the cross-sectional areas of the muscles were smaller in the combined-tear group than in the isolated-tear group. We conclude that atrophy of the supraspinatus and infraspinatus muscles also depends on the site of the tear.
我们确定了肩袖撕裂部位与肩袖肌肉萎缩之间的关系。28个肩部（28例患者）存在肩袖撕裂：19例为孤立的冈上肌腱撕裂（孤立撕裂组），9例为冈上肌和冈下肌腱联合撕裂（联合撕裂组）。在冠状斜位磁共振成像中测量肩胛下肌、冈上肌、冈下肌和小圆肌在手术前后的横截面积。尽管我们发现撕裂大小没有差异，但联合撕裂组肌肉的横截面积小于孤立撕裂组。我们得出结论，冈上肌和冈下肌的萎缩也取决于撕裂部位。
