70 歳以上に行った鏡視下腱板修復術の術後成績

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Background: The purpose of this study was to evaluate the outcomes of arthroscopic rotator cuff repair in patients aged 70 or older. Methods: We identified 20 patients aged 70 or older who had undergone arthroscopic repair of rotator cuff tears. They had a mean age of 74.1 years old and a mean follow-up of 26.1 months. Trauma was the cause of injury in 7 patients. A minimum of 1-year follow-up was performed using the Japanese Orthopaedic Association shoulder score (JOA score). Tendon healing was evaluated per Sugaya's classification using magnetic resonance imaging (MRI) obtained 6 months postoperatively. Results: The JOA score improved significantly, from 64.2 to 93.3 at final follow-up. MRI showed 7 shoulders with a Sugaya classification type I repair, 5 shoulders with a type II repair, 2 shoulders with a type III repair, 2 shoulders with a type IV repair, and 4 shoulders with a type V repair. Conclusion: The re-tear rate was 30% (6 of 20). The size of the lesion generally affects the results. It should also be noted that large tears may result in re-tear. However, a low re-tear rate was observed in this study, particularly in patients with traumatic tears. Arthroscopic rotator cuff repair provides significant improvement in pain and function in patients over 70 with symptomatic full-thickness rotator cuff tears.