| Objective To investigate the clinical effects of the sinus tarsi approach and plate fixation with minimal-invasive percutaneous pedicle screw technology in treating calcaneal fractures of Sanders type II&III. Methods From May 2016 to December 2017, 23 patients with calcaneal fractures(Sanders type II&III) were treated with minimal-invasive percutaneous pedicle screw using the sinus tarsi approach and plate fixation. There were 15 males and 8 females with age ranging from 22 to 61 years(mean,44.2 years). According to the classification of Sanders, 15 case were classified as Type II, and eight as Type III．The soft tissue condition after operation was recorded. Fracture reduction and healing time were measured. Record and compare the Böhler angle and Gissane angle before and after operation. Maryland foot score system was used to evaluate the clinical results. All data were statistically analyzed with SPSS 20.0 software．Results All the patients were followed up for 10 to 13 months ( mean, 11.8 months). All of the calcaneus achieved anatomic reduction or nearly anatomic reduction. There were no incision infection , necrosis or hematoma. All fractures healed and fracture healing time ranged from 3 to 6 months( mean, 4.4 months). Böhler angle and Gissane angle were significantly improved in all patients (P<0.01). According to Maryland foot score system, 13 cases were defined as excellent, 10 cases as good, and 2 cases as poor. The excellent and good rate was 91.3%．Two cases suffered from sural nerve injury. Conclusion Sinus tarsi approach and plate fixation with minimal-invasive percutaneous pedicle screw technology is an effective method for the treatment of calcaneal fractures of Sanders type II&III. It has the advantages of small trauma, safe operation, limited complicatio, table fixation. |
