The purpose of this study was to document the longterm clinical, radiograph
ic, and magnetic resonance imaging results after open meniscal repair. Twen
ty-two patients, with 23 open meniscal repairs, were evaluated after a mean
follow-up of 12.9 years using patient history, physical examination, KT-10
00 arthrometer testing, the "Orthopaedische Arbeitsgemeinschaft Knie" knee
evaluation scheme, Tegner activity score, weightbearing radiographs, and ma
gnetic resonance imaging. Two of the 22 patients had retears and both occur
red in unstable knees. Radiographs revealed no degenerative changes in 17 o
f the 23 compartments. Grade III and IV signal alterations were present on
magnetic resonance imaging scans in more than 50% of the repaired menisci.
We concluded that the longterm survival rate of repaired menisci was 91%, a
nd that magnetic resonance imaging is unsuitable for diagnosis of the heali
ng process of a repaired meniscus.