A biomechanical evaluation of three surgical techniques for subscapularis repair
| Autor: | Shantanu Patil, Gregory R. Van den Berghe, Robert Pedowitz, Darryl D. D'Lima, Heinz R. Hoenecke, Andrew Mahar, Bao Nguyen |
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| Rok vydání: | 2008 |
| Předmět: |
Adult
Male musculoskeletal diseases medicine.medical_specialty Adolescent Buttress plate Shoulders medicine.medical_treatment Tendons Random Allocation Cadaver medicine Humans Orthopedics and Sports Medicine Arthroplasty Replacement Aged Aged 80 and over Shoulder Joint business.industry Suture Techniques Biomechanics General Medicine Middle Aged musculoskeletal system Arthroplasty Biomechanical Phenomena Surgery Clamp Fatigue loading Female Cadaveric spasm business |
| Zdroj: | Journal of Shoulder and Elbow Surgery. 17:156-161 |
| ISSN: | 1058-2746 |
| DOI: | 10.1016/j.jse.2007.04.016 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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