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Meniscal Allograft Survivorship and Outcomes 20 Years After Implantation

      Purpose

      To evaluate meniscal allograft survivorship and outcomes 20 years after implantation.

      Methods

      Fifty-six meniscal allograft patients at a minimum 20 years following implantation comprised the study group. Forty-eight (85.7%) were able to be contacted regarding the function of their knee and if any additional surgeries were performed.

      Results

      Of the 48 patients, 21 required surgical treatment of the graft. Thirteen patients had isolated partial meniscectomy. Eight patients had knee arthroplasty with 1 having prior partial graft removal and one also had a high tibial osteotomy. The average time to arthroplasty was 12.7 years. The graft survivorship was 56.2%. The activity levels at follow-up varied widely, but in general did not deteriorate compared to those preoperatively. Only 1 patient stated they would not have undergone the procedure.

      Conclusions

      Meniscal allografts were able to provide subjective improvement at 20 years after surgery and while not as durable as the native meniscus, the overall graft survivorship was 56.2% after implantation.

      Level of Evidence

      Retrospective case series, Level of evidence IV.
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