The Midterm Results of Arthroscopic Anterior Cruciate LigamentReconstruction with Hamstring Tendon and Ligament Anchor Screw / 대한정형외과학회잡지

ABSTRACT

PURPOSE: To evaluate the clinical and radiological results of an arthroscopic ACL reconstruction with a hamstring tendon and Ligament Anchor (LA) screw. MATERIALS AND METHODS: 48 cases among 47 patients with a minimum 5 year follow up after the ACL reconstruction were examined. The clinical results (Lysholm Knee score, Tegner activity scale, Lachmann test, Pivot-shift test, and complications) were evaluated, and the radiological results (osteoarthritis, bony tunnel enlargement, instrumented anterior laxity test with Telos?) were assessed. RESULTS: The Lysholm Knee score showed significant improvement from 65.8 to 96.7 at the final follow up. The Tegner activity scale also showed significant improvement from 3.5 preoperatively to 6.0 at the final follow-up. The Lachmann test showed that 42 cases had converted to negative. The Pivot-shift test was negative in 39 cases and mild positive in 9 cases. The side to side difference using the instrumented anterior laxity test was 12.5 mm preoperatively and 3.2 mm at the final follow-up. Degenerative osteoarthritis was observed in 9 (19%) knees. The femoral and tibial tunnel were widened by 21.6 and 20.9% in the AP view and 16.3 and 19.0% in the lateral view, respectively (p<0.05). CONCLUSION: An ACL reconstruction with a hamstring tendon and LA screw can restore the knee stability with satisfactory clinical results and few complications.