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Augmented Broström and Improved Functional Outcomes as Measured by PROMIS Scores Compared With Broström Without
Steven M Hadley1, Rachel Bergman1, Sarah J Westvold2
1Department of Orthopaedic Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.
Orthopaedic Journal of Sports Medicine
|April 10, 2026
Summary
The augmented Broström procedure significantly improves physical function and reduces pain interference compared to the nonaugmented approach. This surgical option enhances outcomes for chronic lateral ankle instability patients.
Area of Science:
- Orthopedic Surgery
- Sports Medicine
- Patient-Reported Outcomes
Background:
- No prior studies compared functional outcomes using Patient-Reported Outcomes Measurement Information System (PROMIS) measures between augmented and nonaugmented Broström procedures.
- Validated PROMIS measures for physical function (PF) and pain interference (PI) are crucial for assessing surgical success.
Purpose of the Study:
- To evaluate if the augmented Broström procedure yields superior PROMIS scores for PF and PI compared to the nonaugmented technique.
- To provide evidence-based insights into optimizing surgical management for lateral ankle instability.
Main Methods:
- Retrospective cohort study (Level of evidence, 3) of 97 patients undergoing lateral ankle ligament reconstruction.
- PROMIS surveys assessed functional outcomes; augmentation utilized the InternalBrace system.
- Weighted linear regression and inverse probability of treatment weighting adjusted for covariates.
Main Results:
- Augmented Broström group showed improved adjusted PROMIS PF (4.68 points higher, P < .01) and PI (3.76 points lower, P = .07) versus nonaugmented.
- Higher BMI and varus deformity were associated with worse functional outcomes.
- No significant differences in PF or PI were noted beyond 2 years post-surgery.
Conclusions:
- The augmented Broström procedure is linked to clinically significant improvements in PROMIS scores for physical function and pain interference.
- Augmentation may be an effective surgical strategy for maximizing functional recovery in chronic lateral ankle instability.
