Augmented Broström and Improved Functional Outcomes as Measured by PROMIS Scores Compared With Broström Without Augmentation

Background: No study has compared functional outcomes measured by validated Patient-Reported Outcomes Measurement Information System (PROMIS) measures of physical function (PF) and pain interference (PI) between augmented and nonaugmented Broström procedures. Purpose: To determine whether the augmented Broström procedure is associated with improved PROMIS scores compared with the nonaugmented procedure. Study Design: Cohort study; Level of evidence, 3. Methods: tests. A weighted linear regression model with robust standard errors was fitted to examine associations between PROMIS and the Broström technique, adjusting for clinically relevant covariates. Type-3 analysis of variance was performed to assess the significance of each predictor. Inverse probability of treatment was used to balance the distribution of covariates across techniques. Results: = .37, respectively). Conclusion: Our study showed that the augmented Broström procedure was associated with significantly improved PROMIS scores compared with the nonaugmented Broström procedure to a degree that reaches the minimal clinically important difference for PROMIS. The augmented Broström procedure, therefore, may serve as an effective surgical option to maximize functional outcomes for patients suffering from chronic lateral ankle instability.