Bilateral Congenital Knee Fusions with Lower Limb Deformities and Coxa Vara Treated with Osteotomies

This is a case of complex bilateralBilateral congenital knee fusionsOsteotomy lower limb deformities including bilateral coxa vara and severe knee flexion deformities through congenital knee fusions. The patient required combined techniques of acute and gradual deformity correction using six-axis external fixation. The patient underwent staged surgery to correct both limbs within a 6-week interval.