Purpose: To evaluate the survivorship and clinical outcomes of meniscal allograft transplantations (MAT) and determine the impact cartilage status may have on these outcomes.
45 MATs from 42 patients were included in the survivorship analysis with a mean follow-up of 8.6 years.
There was not a significant difference in survivorship between gender, age, sidedness or medial versus lateral MAT but patients older than 35 did have a higher failure rate.
Patients with an Outerbridge Cartilage Score (OCS) of 0-2 at the time of surgery had 100% survival at an average of 10.6 years of follow-up.
Patients with an OCS 3-4 had a 74.2% survival at 7.1 years mean follow-up.
The overall survival rate was 82.2%. Four patients required a conversion to total knee arthroplasty and 4 required meniscal graft excision.
Patients with an OCS 0-2 had significant improvements in Lysholm and Tegner scores but insignificant improvement in IKDC and Oxford Knee Scores (OKS). Those with an OCS 3-4 had significant improvements in all outcome measures except the Tegner.
JRF Ortho Take Away: MAT has shown to be an effective surgical treatment with good survivorship and functional outcomes at medium to long term follow-up. Patients with lower grades of cartilage damage have better MAT survivorship but all patients benefit clinically.
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Authors: Ahmed Mahmoud, James Young, Joanne Bullock-Saxton, Peter Myers
Institution: Griffith University Brisbane Orthopaedic and Sports Medicine Centre