Bone grafts may be needed for various orthopaedic surgeries of the foot and ankle. Bone grafts provide bony support and/or fill in areas where bone is missing. Bone grafts are either taken from the patient (autograft), or taken from a bone donor (allograft). The best bone graft provides enough bone and healing with minimal problems for the patient.

Proximal tibial bone graft (PTBG) is a type of autograft. The proximal tibia is the upper portion of the leg or shin bone that is just below the knee joint. Getting bone graft from this body part usually is less painful than from other areas like the pelvis.