肩腱板断裂に対する鏡視下腱板修復術の治療成績 : single-row 法, dual-row 法, suture bridge 法の比較

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The purpose of this study was to compare the functional outcome and the structural outcome evaluated with postoperative MRI T2 finding based on Sugayas classification in a suture bridge (B) fixation, a single-row (S) fixation and a dual-row (D) fixation for arthroscopic rotator cuff repair using suture anchors. We studied 21 B fixation, 21 S fixation and 42 D fixation shoulders. In B, S and D fixation, the average age at operation was 58, 61 and 63 years old, the mean interval from the time of the operation to the final follow-up evaluation was 9, 16 and 16 months respectively. The size of rotator cuff tear was 2 small, 12 medium, 4 large, 3 massive in B and 11 small, 7 medium, 3 massive in S and 3 small, 17 medium, 15 large, 7 massive in D. The average postoperative JOA score in B, S and D fixation was 94.7, 98.3 and 95.6 respectively, which improved significantly compared with the pre-operation JOA score in all groups. Postoperative MRIs were 10 type I, 5 type II, 3 type III, 2 type IV, 1 type V in B and 15 type I, 4 type II, 2 type V in S and 16 type I, 10 type II, 11 type III, 5 type IV in D. The clinical outcomes of these groups treated with arthroscopic rotator cuff repair were favorable. A suture bridge fixation is easier than a dual-row fixation, because it can reduce the number of threads in an operation.
2009-07-27