吸収性アンカーを用いた鏡視下腱板修復術（ARCR）の臨床成績

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We have performed ARCR using bioabsorbable suture anchors. It is easy to re-operate, because the bioabsorbable anchor is resolved and absorbed. However, the difficult problems remain: loosening, dislocation and enlargement of the anchor hole. The clinical results for ARCR using bioabsorbable and metal anchors were investigated. Eighty shoulders of 76 patients were examined. They were followed up over one year, and examined by MR imaging. Only bioabsorbable anchors were used for 63 shoulders of 60 patients (group A: mean age; 58 years old, 40 males, 20 females, mean follow-up; 21 months). Metal anchors were used for 17 shoulders of 16 patients (group M: mean age 60 years old, 6 males, 10 females, mean follow-up; 22 months). The clinical results were evaluated with JOA score. The cuff integrity was evaluated with Sugaya classification on MR images. JOA scores were improved from 67.2 preoperatively to 90.6 postoperatively in group A. In group M, they were improved from 65.6 to 91.1 respectively. There are statistical differences between the preoperative score and postoperative score in both groups. Meanwhile, there is no difference of JOA score between groups A and M, pre- and postoperatively. The re-tears of repair cuffs were 4 shoulders (6.4%) in group A, and 2 shoulders (11.8%) in group M. There is no statistical difference between group A and group M. For good bone quality patients, the clinical results of ARCR using bioabsorbable anchors were as good as using metal anchors.

吸収性アンカーを用いた鏡視下腱板修復術（ARCR）の臨床成績

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