A study published in the American Journal of Sports Medicine examines the causes and risk factors for failed hip preservation surgery.
The study authors examined 147 patients who underwent previous pelvic surgery. Here were the findings:
1. Residual intra-articular femoroacetabular impingement was the most common reason for revision surgery — the reason for 74.8 percent of the revision patients.
2. Most of the revision cases — 789 percent — could be addressed with arthroscopic surgery. The exception is extra-articular impingement or residual acetabular dysplasia; both of those require open approaches.
3. Female patients were more likely to undergo revision procedures. Additional risk factors include young age and worse preoperative outcome scores.
4. There was no significant difference between the abnormal femoral version and acetabular dysplasia presence for the revision and primary cohorts.
5. Patient-reported outcome scores included short term improvements for the revision cohort at an average of 15 months after the last revision surgery.