Tibio-fibular synostosis is a rare, limb malformation characterized by fusion of the proximal or distal tibial and fibular metaphysis and/or diaphysis. The present case was an incidental finding in the Osteology section of the Anatomy Museum. We report a rare case of tibiofibular synostosis, reported occasionally in the Indian population. The left tibia and fibula were malunited by the synostotic segment of bone at the junction of the middle and lower 1/3rd of the bones. It is imperative for orthopedic surgeons to follow up postoperative leg cases radiologically and evaluate cases with leg and ankle pain keeping this entity in mind.