PRIMARY SUBTALAR RECONSTRUCTION AND ARTHRODESIS USING THE VIRA SYSTEM FOR THE TREATMENT OF SEVERE CALCANEAL FRACTURES

Abstract

Introduction and purpose: The VIRA system allows reconstruction of the fractured bone and its arthrodesis with the talar bone eliminating all movement of the subtalar joint by means of a minimally invasive approach. The aim is to restore the shape of the foot and prevent joint degenerative changes in the long term without the complications and sequelae of open surgery.

Material and methods: Between November 2004 and June 2006, 30 intraarticular calcaneal fractures in 25 patients were treated surgically by means of the Vira System. Using Sanders’ classification 6 cases were classified as type II, 13 as type III and 11 as type IV. Five patients had open fractures. There was a mean period of 8.7 days between the accident and surgery. Seven cases had associated lesions and fractures in other locations. Only 2 cases required iliac crest grafts in the operated area.

Results: All patients except 10 have returned to their usual occupations. Eight cases evolved favorably but have had a short follow-up. Two cases experienced a delayed healing of the subtalar arthrodesis and had to be reoperated; they required an autologous graft. The mean period of temporary disability in patients discharged from hospital was 163.7 days. Clinical assessment using the AOFAS scale reached a mean value of 76.6 points. No surgical or post-surgical complications were seen in the group studied.

Conclusions: The VIRA System seems capable of achieving its purpose in the first series of patients operated. It allows a quick recovery both postoperatively and in the subsequent evolution without any associated complications. It accelerates the patients’ return to work by decreasing convalescence and minimizing sequelae.