Results of conservative treatment of partial tears of the anterior cruciate ligament.

The diagnosis of an acute partial tear of the anterior cruciate ligament was made in 56 patients who did not undergo surgical repair. After a period of up to 5 years, 39 returned for follow up evaluation. They were divided into three groups according to clinical analysis of the knee and the Lysholm-Gillquist score. Our aim was to determine their long term functional limitations. 56% had progressed to anterior cruciate ligament deficiency at the time of follow up. This came about not only after resuming sporting activities, but also occurred in those who were not so active. Our results suggests that a partial tear leaves an irreversible defect which may progress to a complete tear, especially in young athletes engaged in active sport.