RESUMEN
PURPOSE: To analyze comparatively the results of arthroscopic ACL reconstructions using autogenous hamstring tendon with (group II) and without (group I) it's tibial detachment. MATERIALS AND METHODS: A retrospective study of 22 patients (group I; 10, group II; 12) treated with arthroscopic reconstruction using autogenous hamstring tendon was performed. The average follow-up period was 18 months. Functional and clinical results were evaluated according to Clancy's criteria and the Lysholm knee scoring scale. Postoperative anterior laxity was measured using a KT-2000 arthrometer. Using the group I technique, an animal study was done to compare the tension strengths of the afferent and efferent limbs of the graft material. RESULTS: The mean Lysholm knee score was 82.5 points in group I and 87.8 points in group II at the last follow up. Anterior laxity was 2.9 mm in group I and 1.9 mm in group II at the last follow up. Functional evaluation using Clancy's criteria, showed that 7 patients (70%) in group I and 11 patients (91.6%) in group II had an excellent or a good result. In the animal study, a difference was found between the tension strengths of the the afferent and efferent limbs. CONCLUSION: The results of ACL reconstruction in group II were better than those of group I, and the group II technique had the advantage of an graft even tension.