A Retrospective Comparative Analysis of Demographics and Patient-Reported Outcomes in Patients With Progressive Collapsing Foot Deformity and Ankle Instability or Hindfoot Arthritis.

Background: Progressive collapsing flatfoot deformity (PCFD) is a complex pathophysiologic condition, with many different treatment options. The complexity of the condition and variety of treatments can greatly impact patient-reported outcomes (PROs), along with individual patient characteristics. The purpose of this study was to examine PROs in patients receiving surgical treatment for PCFD and compare those outcomes with patients with ankle instability or hindfoot arthritis. Methods: The Orthopaedic Foot and Ankle Outcomes Research (OFAR) Network database was queried to identify all patients with flexible PCFD, ankle instability, or hindfoot arthritis procedures from October 2017 to October 2019 with at least 12 months of follow-up. Patient satisfaction was also measured at both 6 months and 12 months. Changes in PROs and satisfaction were assessed over time and compared between those with PCFD and those with ankle instability or hindfoot arthritis using generalized logistic regression and estimating equations. Results: After adjusting for age, sex, body mass index, hypertension, autoimmune conditions, and type 2 diabetes, there were significant improvements in average Global Physical Health ( Conclusion: This study found that patients who underwent surgical management of PCFD demonstrated significant improvements in their PROs and postoperative satisfaction; however, there were lower odds of satisfaction at 12 months compared with 6 months. Additionally, PCFD patients showed greater improvement in Pain Intensity from baseline to follow-up, whereas other PROMIS domains improved similarly between groups.