Compared with L-shaped lateral approach treatment of displaced intra-articular calcaneal fractures, sinus tarsi approach for the reduction and internal fixation with percutaneous plate seems to be more safe and effective, with satisfactory clinical therapeutic effects and without postoperative complications.

According to characteristic of anatomical structure of calcaneus and sinus tarsi approach, the minimally invasive plate for treatment of displaced intra-articular calcaneal fractures had been designed. Here we aimed to review the effect of this treatment. Forty intra-articular calcaneal fractures in 38 patients from September 2006 to September 2008 were treated with percutaneous plate via sinus tarsi approach under the monitoring of C-shaped arms. All calcaneal anatomical parameters, including height, width, length, Böhlers angle and Gissane angle were measured by X-ray before and after surgery. Postoperative lateral wound healing was also evaluated and clinical functional outcomes were graded using the Maryland foot score. All patients had been followed up for an average of 12 months ranged from 3 months to 24 months. X-ray indicated satisfactory restoration of the calcaneal height, width, length, Böhlers angle and Gissanes angle. Maryland foot score demonstrated that excellent result was achieved in 32 cases, good in 6 cases, fair in 2 cases, and the excellent and good rate was 95%. Postoperative complications were not found in all fractured feet. Our results suggest that this minimally invasive sinus tarsi approach with new designed plate and screw fixation technique for the treatment of intra-articular calcaneal fractures can not only obtain the satisfactory outcomes, but also can effectively prevent surgical complications.