Fig. 1

A 38-year-old male patient with a 3-day left calcaneal fracture caused by a fall from a height was treated in our hospital with subtalar arthroscopic reduction combined with cannulated screw fixation (SJACF). The appearance of the affected limb before surgery showed soft tissue swelling and obvious subcutaneous congestion. B Patient’s body position and preoperative arthroscopic incision marking. C Preoperative fluoroscopy. D The subtalar articular surface was significantly displaced and collapsed during the operation. E Length and width of the calcaneal with bilateral distraction reduction. F Arthroscopic restoration of the articular surface and temporary fixation with a Kirschner wire. G Intraoperative fluoroscopy confirmed that the calcaneal force line recovered well, and the articular surface of the posterior subtalar joint and calcaneocuboid joint were well repositioned. H Four cannulated screws were fixed, and fluoroscopy again confirmed that the reduction was good, and the length and position of the screws were appropriate. I Postoperative incision appearance