Clinical Outcomes and Failure Rates of Osteochondral Allograft Transplantation in the Knee: A Systematic Review

Familiari F, Cinque ME, Chahla J, et al. · The American Journal of Sports Medicine

Weighted survivorship 78.7% at 10 years, 72.8% at 15, 67.5% at 20; reoperation 30.2%, failure 18.2%. Revisions, patellar, and bipolar lesions did worse.

Population

1,036 OCA patients across 19 studies, mean 8.7-year follow-up

Intervention

Osteochondral allograft

Comparator

None (pooled)

Limitations

Observational studies only — no RCT of OCA exists; wide survivorship range (39-93%) across centers.