Evidence / Sources / E49
Vasiliadis HS et al. Malalignment and cartilage lesions in the patellofemoral joint treated with ACI. KSSTA 2011
What it can tell you
The longest patellofemoral ACI horizon in print: at 12.6 years, 72% better or unchanged, good results preserved even in multiple and kissing lesions, and 93% saying they would have the operation again.
What it cannot
Modern technique performance — first-generation periosteal ACI, where realignment reduced hypertrophy but increased serious complications. The durability signal transfers; the complication profile mostly doesn't.
Everything on this site that leans on E49 — 5 claims
Stage VI · Long horizon [patellofemoral]“The patellofemoral MACI cohort's gains were achieved by year two and held flat past year ten, with 90% satisfaction. But in the second-generation ACI series, patients with patellar…”Program · Stage VI (patellofemoral)“Years two to five, on purpose — At 12.6 years, 93% of a patellofemoral ACI cohort would choose the operation again. The knees that got there were not the ones that stopped at month…”Exercise Library · Years two to five“In a second-generation implantation series, patients with patellar and multiple lesions declined between years two and five, while separate long-term patellofemoral cohorts maintai…”What we don't know · № 19“No rehabilitation protocol of any kind addresses a knee with grafts in both compartments at once.”Multifocal disease · what the long-term literature shows“At 12.6 years — the longest patellofemoral horizon in print — 72% of patients were better or unchanged and 93% said they would have the operation again, with good results preserved…”
Read it like a sceptic
Median Lysholm of 70 at 12.6 years is a modest absolute number wearing an optimistic satisfaction figure — both are true, and the gap between them is informative.
Population
ACI, patellofemoral
Selection policy
Sources enter the registry through docs/research — the evidence table records design, population, and size for every entry, and pages cannot cite anything outside it.