Intra-articular traumatic disorders of the knee in children and adolescents.

Intra-articular knee injuries in children traditionally have been considered rarer than injuries in adults. Few studies establish the prevalence of knee injuries before skeletal maturity, but arthroscopic studies suggest an increased frequency of anterior cruciate ligament ruptures, meniscal tears, and osteochondral fractures. We report our experience with 15 anterior cruciate ligament injuries and 38 meniscus injuries treated between 1996 and 2001. The treatment of anterior cruciate ligament injuries is determined by Tanner's maturity criteria. In the three cases of Stage II injuries, surgery was delayed for up to 24 months in the 12 older patients, an immediate reconstruction was done using hamstring tendons in the three youngest patients, and patellar tendon treatment was done in the remaining cases. We had only one complication caused by the fracturing of the bone plug. The most frequent meniscus injuries were the traumatic tears (23 cases), 80% of which were peripheral and longitudinal. Whenever possible, the entire meniscus (suture in 4 cases) or the greater part of it (economic resection in 19 cases) should be conserved. Despite the satisfactory results, the average followup of the meniscal series (26.1 months) is too short a period to evaluate thoroughly the deterioration of the joint after a meniscectomy.