Hybrid 型人工腱板による広範囲腱板断裂の治療成績

概要

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Background: We previously reported the poor clinical results of the five layers polyglycolic acid(PGA) sheets patch graft for massive rotator cuff repair. We developed a hybrid type artificial rotator cuff material (Hybrid RC). We clinically used the Hybrid RC for repair of massive rotator cuff injuries and reported the clinical results. Methods: In total, 62 cases were included in this study. The patch graft using Hybrid RC was performed in 32 cases (Hybrid RC group). The patch graft using five layers PGA sheets (5PGA group) was performed in thirty two cases. 36 cases were male, and 26 cases were female. The average age was 60.5 years. We evaluated the clinical results using JOA score. The MRI findings were evaluated by using Spielmann criteria and Sugaya criteria. The clinical results were analyzed statistically. Results: The average JOA score improved from 55.9 points to 92.7 points postoperatively in the Hybrid RC group and from 51.3 points to 74.8 points postoperatively in the 5PGA group. From the MRI findings, the Hybrid RC group showed the lower re-rupture ratio of 12.5% (4 cases) compared with 37.5% (12 cases) in the 5PGA group. Discussion and conclusion: We developed a hybrid type artificial rotator cuff material. We clinically used the Hybrid RC for the repair of massive rotator cuff injuries and reported good clinical results. Long term follow-up would be necessary.
日本肩関節学会の論文