Clinical photographs of patient’s right knee, viewed from the medial side, depicting (A) periosteum sleeve (white asterisk) attached to the STT insertion is incised. (B) Note the proximity of the STT insertion to the sMCL insertion. (C) STT with attached periosteum of approximately 2.5 cm is released from the bone. White asterisk: Periosteal sleeve attached to the semitendinosus tendon. (JL, joint line; P, patellar; PT, patellar tendon; PTM, posterior tibial margin; sMCL, superficial medial collateral ligament; STT, semitendinosus tendon; TT, tibial tubercle.)