Long-Term Trajectory of Recovery Following Pilon Fracture Fixation.

OBJECTIVES:To describe the trajectory of recovery following fixation of pilon fractures from baseline to 5-year follow-up. DESIGN:Prospective cohort study. SETTING:Level-1 trauma center. PATIENTS/PARTICIPANTS:Patients with pilon fractures (OTA/AO 43.C) treated with open reduction and internal fixation. INTERVENTION:None. MAIN OUTCOMES MEASURES:Patient-reported outcome measures were measured at baseline, 6 months, 1 year, and 5 years using the Short-Form 36 Health Survey (SF-36) Physical Component Score and Mental Component Score, Short Musculoskeletal Functional Assessment, and the Foot and Ankle Outcome Score. RESULTS:One hundred two patients were enrolled: mean age was 42.6 years; 69% were males; 88% had an injury severity score of 9; 74 patients (73%) completed 1-year follow-up; 40 patients (39%) completed 5-year follow-up. Trajectory of recovery of physical function showed a significant decline between baseline and 6 months, with significant improvement between 6 months and 1 year and then ongoing but slower improvement between 1 year and 5 years. Sixty-four patients returned to baseline SF-36 Physical Component Score at 5 years. Pain was a persistent issue and remained significantly worse at 5 years when compared with baseline. Psychological well-being (SF-36 Mental Component Score) did not significantly change from baseline at 5 years. CONCLUSION:Functional recovery following open reduction and internal fixation for pilon fractures was characterized by an initial decrease in function from baseline, followed by an increase between 6 months and 1 year, and then slower but continued increases from 1 year to 5 years. Function did not return to baseline levels, pain was a persistent issue, and mental well-being showed no change from baseline at 5 years. This information may be useful when counselling patients. LEVEL OF EVIDENCE:Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.