Predicting Outstanding Results Following Primary Total Hip Arthroplasty Using the Maximal Outcome Improvement Threshold
Authors
Maldonado DR, Padmanabhan S, Nerys-Figueroa J, Gattu N, Schinsky MF, Domb BG
Journal
Journal of Arthroplasty, 2025
Objective
To identify improvement thresholds in patient-reported outcome scores that indicate excellent results after total hip arthroplasty (THA).
Methodology
A study of 584 patients who underwent THA, with at least 2 years of follow-up. The study measured improvement in three scores: Forgotten Joint Score (FJS), Harris Hip Score (HHS), and pain (VAS).
Key Findings
- Meaningful improvement was defined as ≥54.2% for FJS, ≥65% for HHS, and ≥67.1% for pain.
- All three scores showed significant improvements after surgery.
- There were no consistent preoperative characteristics to predict who would achieve these high improvement thresholds.
Conclusion
These benchmarks help define what qualifies as "outstanding" results after THA, giving both patients and doctors a clearer idea of what to expect. They can also guide future decisions about patient counseling and surgical quality.
What Does This Mean For Patients
If you're having a hip replacement, these new improvement benchmarks can help set realistic expectations. It can also help doctors assess how well the surgery is working for you.