Journal
JOURNAL OF SHOULDER AND ELBOW SURGERY
Volume 15, Issue 6, Pages 691-696Publisher
MOSBY-ELSEVIER
DOI: 10.1016/j.jse.2006.03.004
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There is a high rate of recurrent and residual tears after rotator cuff repair surgery. Recent cadaveric studies have provided surgeons with new knowledge about the anatomy of the supraspinatus tendon insertion. Traditional repair techniques fail to reproduce the area of the supraspinatus insertion, or footprint, on the greater tuberosity anatomically. Double-row suture anchor (DRSA) fixation is a new technique that has been developed to restore the supraspinatus footprint better. In this study, 3-dimensional mapping was used to determine the area of the footprint recreated with 3 different repair methods: a transosseous simple suture technique, fixation with a single row of suture anchors, and DRSA fixation. The DRSA fixation technique consistently reproduced 100% of the original supraspinatus footprint, whereas the single-row suture anchor fixation and transosseous simple suture techniques reproduced only 46% and 71% of the insertion site, respectively. Therefore, the footprint area of the DRSA fixation technique was significantly larger (P < .05) than that of the other 2 techniques. Furthermore, double-row fixation may provide a tendon-bone interface better suited for biologic healing and restoring normal anatomy.
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