RESUMEN
Twenty-eight patients with chronic anterior cruciate ligament [ACL] insufficiency were evaluated after arthroscopic bone-tendon-bone [BTB] patellar ligament reconstruction. All patients had operated for ACL insufficiency after more than three months, but less than one year of the injury. The average follow up was 20 months. Twenty-two patients had normal or near normal stability in the operated knees when compared with the contralateral joints and the Lysholm knee score showed satisfactory results [>82 points]. There was one traumatic and one spontaneous rupture. It was found that arthroscopic reconstruction of ACL insufficient knee with a bone-patellar ligament- bone [BTB] graft lead to good stability and improved function often allowed the patient to resume the ordinary activities