Minagawa H, Itoi E, Konno N, Kido T, Sano A, Urayama M, Sato K
Department of Orthopaedic Surgery, Akita University School of Medicine, Hondo, Japan.
Arthroscopy. 1998 Apr;14(3):302-6. doi: 10.1016/s0749-8063(98)70147-1.
We investigated the anatomic relationship of the supraspinatus (SSP) and infraspinatus (ISP) tendons to the three facets of the greater tuberosity. After removing the superficial layer of the cuff to expose the tendon fibers in 10 embalmed shoulders, the cuff tendon attachment to the facets was examined, and the location of attachment was measured in reference to (1) the anterior margin of the greater tuberosity and (2) the superior margin of the sulcus (anatomic neck without cartilage). The SSP tendon attached to the superior facet and the superior half of the middle facet. The ISP tendon attached to the entire middle facet, covering a portion of the SSP tendon. Thus, the anterior half of the superior cuff tendon (12.6 +/- 1.1 mm) was composed of only the SSP tendon, whereas the posterior half (9.8 +/- 3.2 mm) was composed of both the SSP and ISP tendons. The sulcus was located not at the SSP-ISP interval but slightly posterior to the posterior margin of the SSP tendon (4.3 +/- 2.4 mm). We conclude that (1) there is an overlap between the SSP and ISP tendons identifiable by the facets or the distance from the anterior greater tuberosity and (2) the sulcus is located slightly posterior to the posterior margin of the SSP tendon.
我们研究了冈上肌（SSP）和冈下肌（ISP）肌腱与大结节三个小平面的解剖关系。在10具防腐处理的肩部标本中，去除袖带浅层以暴露肌腱纤维后，检查袖带肌腱在小平面上的附着情况，并参照（1）大结节前缘和（2）沟的上缘（无软骨的解剖颈）测量附着位置。SSP肌腱附着于上小平面和中平面的上半部分。ISP肌腱附着于整个中平面，覆盖了部分SSP肌腱。因此，袖带上缘肌腱的前半部分（12.6±1.1毫米）仅由SSP肌腱组成，而后半部分（9.8±3.2毫米）由SSP和ISP肌腱共同组成。沟并非位于SSP-ISP间隙处，而是位于SSP肌腱后缘稍后方（4.3±2.4毫米）。我们得出结论：（1）通过小平面或距大结节前缘的距离可确定SSP和ISP肌腱之间存在重叠；（2）沟位于SSP肌腱后缘稍后方。
