Subtalar Joint Malunion Treated with U Osteotomy

This 45-year-old female patient had rheumatoid arthritis and significant varus deformity (the entire foot was twisted outward) because of a malunited subtalar fusion. U osteotomy was performed under fluoroscopy. Then an external fixation device was applied and used to gradually correct the varus deformity during a 3-month period. The successful correction allowed the foot to be flat on the ground and the heel to be positioned directly under the ankle. The patient is now able to walk without pain or assistive devices (e.g., cane, walker).