Abstract
Category:Hindfoot; TraumaIntroduction/Purpose:The initial management of displaced intraarticular calcaneus fractures (DIACFs) is a difficult problem. The results of open reduction internal fixation (ORIF) have been disappointing. Alternatively, ORIF with primary subtalar arthrodesis (PSTA) has gained increasing popularity. The purpose of this study is to review patient-centered and radiographic outcomes of ORIF plus PSTA using screws alone through a sinus tarsi approach.Methods:A retrospective study of all patients from 2013-2019 who underwent ORIF+PSTA for DIACFs was conducted. The same surgical technique was utilized in all cases consisting of only screws, no plates were utilized. Delayed surgeries past 8 weeks were excluded. Demographic and radiographic data was collected. Worker's compensation (WC) claims were noted and analyzed separately. Plain radiographs were assessed preoperatively and post-operatively and Sander's classification was used to characterize injuries. Patient reported outcomes (PROs), complications, and need for revision surgeries was also noted and analyzed at final follow-up.Results:In total, forty-eight DIACFs underwent PSTA with a median follow-up of 194 days. Median time to weight-bearing was 60 days post-operatively. Three fractures were documented as Sanders II, 22 as Sanders III, and 23 as Sanders IV. Seventy-five percent of the WC group returned to work compared to just 58.3% in the non-WC group (p=0.0003). Patients in the WC group were more likely to have had an abnormal pre-operative Bohler's angle (p=0.047) but the two groups did not differ significantly in postoperative Gissane or Bohler angles. Nearly 85% (N=41) achieved >=2 zones of fusion on radiographs by final follow up and 95.8% (N=46) had at least one. Four patients had a complication and 3 required a return to the operative room.Conclusion:Utilizing Screws only primary subtalar arthrodesis for the treatment of DIACFs through a sinus tarsi approach shows promising results with high rates of return to work and fusion, even in the workers' compensation population.
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