Posterior cruciate ligament avulsion associated with ipsilateral femur fracture in a 10-year-old child.

Ligamentous injuries to the knee do occur in children with open physes. Rarely, the posterior cruciate ligament may be involved and prompt attention to repair when recognized is encouraged. While avulsion occurs, more commonly, from the femoral insertion of the posterior cruciate, the tibial origin may be the site of injury, as in this case report. Complete examination of fractured femurs in children is therefore necessary. Early ligamentous repair is superior to later reconstruction.