2.2. Patient Management (Intraoperative and Postoperative)

The patients were placed on a traction bed in the supine position. Closed reduction was performed under fluoroscopy. After the confirmation of good reduction quality (evaluated by the Garden alignment index), three parallel cannulated screws were inserted for internal fixation [11]. Then, fluoroscopy was used again to make sure the reduction was of high quality (Garden alignment index was within the range of 155°-180° in both AP and lateral radiographs) and the screws were in good position (three cannulated screws were placed parallel to one another and perpendicular to the fracture line with inverted triangle distribution) [11].

The patients stayed in bed after the surgery and started rehabilitation exercise on the first day postoperatively. Weight-bearing walking started after the healing of fractures were shown on the X-rays during follow-up (from 6 weeks at the earliest to 3 months after surgery). The exercise was partially weight-bearing in the early stage, and then gradually changed to full weight-bearing.