COMPARATIVE STUDY
JOURNAL ARTICLE

Osteoarthritic changes after anterior cruciate ligament reconstruction using bone-patellar tendon-bone or hamstring tendon autografts: a retrospective, 7-year radiographic and clinical follow-up study

Mattias Lidén, Ninni Sernert, Lars Rostgård-Christensen, Catarina Kartus, Lars Ejerhed
Arthroscopy 2008, 24 (8): 899-908
18657738

PURPOSE: This study was undertaken to evaluate the long-term radiographic appearance and clinical outcome after anterior cruciate ligament (ACL) reconstruction by use of either bone-patellar tendon-bone (BPTB) or hamstring tendon (HT) autografts and to evaluate how associated meniscal injuries affect the prevalence of osteoarthritis (OA).

METHODS: ACL reconstruction was performed in 124 consecutive patients. Of these patients, 113 (91%) (72 BPTB and 41 HT) returned for a follow-up examination at a median of 86 months (range, 67 to 111 months) after reconstruction. The patients underwent standard weight-bearing radiographic examinations and clinical evaluation.

RESULTS: The radiographic assessments showed no significant differences between the graft types in terms of OA classified according to the Ahlbäck and Fairbank rating systems. Overall, 23% of the patients had degenerative changes according to the Ahlbäck system, and 74% had degenerative changes according to the Fairbank system. Associated meniscal injuries increased the prevalence of OA. Clinically, no significant differences were found between the graft types in terms of the Tegner activity test, 1-leg hop test, International Knee Documentation Committee evaluation system, disturbed area of sensitivity, manual Lachman test, KT-1000 laxity test (MEDmetric, San Diego, CA), and knee-walking test. The Lysholm score (P = .02) and knee-walking ability (P = .02) were significantly better in the HT group.

CONCLUSIONS: At a median of 7 years after ACL reconstruction with either BPTB or HT autografts, the prevalence of OA as seen on standard weight-bearing radiographs and the clinical outcome were comparable. The presence of meniscal injuries increased the prevalence of OA.

LEVEL OF EVIDENCE: Level III, therapeutic, retrospective comparative study.

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