A biomechanical evaluation of three surgical techniques for subscapularis repair

被引:42
|
作者
Van den Berghe, Gregory R. [1 ]
Nguyen, Bao [1 ]
Patil, Shantanu [1 ]
D'Lima, Darryl D. [1 ]
Mahar, Andrew [1 ]
Pedowitz, Robert [1 ]
Hoenecke, Heinz R. [1 ]
机构
[1] Scripps Clin, Shiley Ctr Othopaed Res & Educ, La Jolla, CA 92037 USA
关键词
D O I
10.1016/j.jse.2007.04.016
中图分类号
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学(修复外科学)];
学科分类号
摘要
This study was designed to determine which subscapularis repair method performs best under fatigue loading. Fresh-frozen human cadaveric shoulders were used. A standard circumferential release was performed, including a rotator interval release and separation of the subscapularis from the anterior and inferior capsules. One of 3 methods was used to repair the subscapularis tendon: tendon-to-tendon, tendon-to-bone, or bone-to-bone using a buttress plate. The shoulder was mounted on a fatigue-testing machine, and the medial end of the subscapularis tendon was attached to a soft-tissue clamp. We initially tested each specimen for fatigue at 150 N for 500 cycles, then at 300 N for 2500 cycles. The failure rate of bone-to-bone and tendon-to-tendon repairs was significantly better than that of the tendon-to-bone repair. The bone-to-bone repair exhibited the best combination of repair strength and restoration of subscapularis length.
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收藏
页码:156 / 161
页数:6
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