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VERY LONG TERM RESULTS OF ANTERIOR CRUCIATE LIGAMENT RECONSTRUCTION COMBINING A PATELLAR TENDON GRAFT WITH EXTRA-ARTICULAR TENODESIS



Abstract

Objective: To evaluate the clinical and radiological outcome of an intra-articular bone-patellar tendon-bone (B-PT-B) anterior cruciate ligament reconstruction in combination with an extra-articular tenodesis (Lemaire procedure), at very long term follow-up.

Methods: Out of a total of 148 patients, 100 were available for clinical and/or radiological evaluation in 2006. The minimum follow-up is 21 years with a mean of 24.5 years. Outcome parameters included objective (IKDC) and subjective (KOOS) clinical scores, and radiographs (standing, TELOS).

Results: 84% of the patients were very satisfied or satisfied. The objective IKDC classification was: A=17%, B=41%, C=34%, D=8%. In 2006, 27% had narrowing < 50% (C) and 27% had narrowing > 50% (D). Onset of osteoarthritis correlated with medial meniscus status and medial femoral chondral defects. Knees with a preserved (healthy or sutured) medial meniscus had a significantly (p< 0.05) better radiological outcome. 24% had narrowing < 50% (C) and 12% had narrowing > 50% (D). Risk factors for osteoarthritis were: medial meniscectomy, residual laxity, age at intervention and femoral chondral defects.

Conclusion: The outcome of anterior cruciate ligament reconstruction using a B-PT-B in combination with extra-articular tenodesis is satisfactory in the very long term, in knees with a preserved medial meniscus and normal cartilage.

Correspondence should be addressed to: EFORT Central Office, Technoparkstrasse 1, CH – 8005 Zürich, Switzerland. Email: office@efort.org