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Meniscal Allograft Survivorship and Outcomes 20 Years After Implantation
Thomas R Carter1, Matthew J Brown2
1Banner University Medical Center, Phoenix, Arizona, U.S.A.
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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