The Ilizarov apparatus was used to carry out opening-wedge callotasis of the proximal tibia in ten patients who had suffered premature asymmetrical closure of the proximal tibial physis and subsequent genu recurvatum. In four knees, the genu recurvatum was entirely due to osseous deformity, whereas in six it was associated with capsuloligamentous abnormality. Preoperatively, the angle of recurvatum
Received 26 October 1998; Accepted after revision 9 December 1998Premature asymmetrical closure of the proximal tibial physis can result in osseous genu recurvatum. As the deformity increases it leads to pain, weakness, instability of the knee and disturbance of gait. Patella alta, impairment of the quadriceps mechanism and stretching of the posterior capsuloligamentous structure of the knee may also occur.