Partial Articular-sided Rotator Cuff Tears: In Situ Repair Versus Tear Completion Prior to Repair

作者：Sethi Paul M; Rajaram Arun^*; Obopilwe Elifho; Mazzocca Augustus D

来源：Orthopedics, 2013, 36(6): 771-777.

DOI：10.3928/01477447-20130523-23

Uncertainty exists over the ideal surgical treatment method for partial articular-sided rotator cuff tears, with options ranging from debridement to in situ repair to tear completion prior to repair. The purpose of this study was to determine whether in situ repair was a viable biomechanical treatment option compared with tear completion prior to repair of partial articular-sided rotator cuff tears. %26lt;br%26gt;Fourteen fresh-frozen cadaveric shoulders were dissected. Partial articular-sided tears were created and repaired using in situ repair or tear completion prior to the repair. Strain and displacement were measured at 45 degrees, 60 degrees, and 90 degrees of glenohumeral abduction. Testing was performed with a load of 100 N applied for 30 cycles. Data from the biomechanical testing displayed 4 conditions that showed improved characteristics of in situ repair over completion and repair: bursal-sided strain anteriorly at 45 degrees, bursal-sided strain anteriorly at 90 degrees, bursal-sided displacement anteriorly at 45 degrees, and bursal-sided displacement anteriorly at 90 degrees. %26lt;br%26gt;The data indicate that in situ repair is a viable biomechanical treatment option compared with tear completion prior to repair of partial articular-sided rotator cuff tears. When clinically appropriate, the in situ repair may offer some biomechanical advantages, with lower strain and displacement observed on the bursal side compared with tear completion prior to repair.

• 出版日期2013-6