Abstract:[Objective]To introduce a surgical methodforrapid recovery of Hoffa fracture with an avulsion fracture of the medial collateral ligament and the preliminary clinical outcomes.[Methods]:Three patients with medial Hoffa fracturecombined with an avulsion fracture of the origin of the medial collateral ligamentwere admitted between May 2016 and March 2021, all of whom were treated with open reduction and rigid fixation with steel plate-screw and fully threaded hollow screw through a medial incision, hollow lag screw fixation at the insertion of medial collateral ligament, usingETHIBOND suture for enhanced fixation. Postoperatively,the knee joint was placed at 110-120° of flexion, an analgesic pump was used to relieve pain, and functional exercise of the ankle joint and isometric contraction training was performed.Twenty-four hours later, extension and flexion functional exercise of the knee joint was conducted three times per day for 30 minutes each time, after which the knee remained flexed at 110-120° for three days. Knee placement position was determined according to knee extension and flexion function after three days.[Results]The range of motion of the knee joint reached 0° extension and 120° flexion within two weeks and further reached 0° extension and 150° flexion after two months of surgery.The fracture line was blurred, and the patients walked with full weight-bearingafter three months of surgery, and the knee joint function recovered satisfactorily six months later.[Conclusion] For Hoffa fracture combined withanavulsion fracture of the origin of the medial collateral ligament, open reduction and rigid fixation, as well as knee fixation in 110-120°flexion with early functional exercise, can accelerate the rehabilitation of knee joint function and reduce the occurrence of complications.