Surgical treatment of an unstable varus knee: one-stage or two-stage?

We present a case of a young female athlete with chronic knee instability and constitutional varus limb, in which the failure of an initial stabilising operation required multiple operations to correct the unstable varus knee: in particular valgus osteotomy and ligament reconstruction using contralateral patellar tendon were performed in two staged operations in order to minimise surgical aggression, optimise rehabilitation and prevent postop complications. The final result is evaluated according to the IKDC chart as normal category A.