FP10.8 High prevalence of acetabular rim osteophytes after hip arthroscopy for treatment of FAI

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ID: 330943
2026
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Abstract
Abstract ICLA10 - Unraveling the Failure: Diagnostic Algorithms and Why Hip Preservation Fails, Auditorium A (BMCC Level 1), October 9, 2026, 10:30 - 12:30 Background Few studies mentioned acetabular rim osteophytes (ARO) after arthroscopy for femoroacetabular impingement (FAI) in follow-up after primary hip arthroscopy. We found that many patients had postoperative ARO, which may lead to recurrent or secondary pincer-type deformity after primary hip arthroscopy for FAI and postopera- tive ARO sometimes even led to revision surgery. It is necessary to carry out related research on ARO. Methods We respectively evaluated consecutive cases who underwent hip arthroscopy in our hospital between January 2008 and January 2020. Radiographic examination was obtained for all patients preoperatively and post- operatively. Another CT scan was performed at least 6 months after surgery at final follow-up. Preoperative patient- reported outcomes (PROs) and PROs at final follow-up were obtained, including visual analog scale (VAS) for pain and modified Harris Hip Score (mHHS). The volume of ARO was calculated using mimics 21.0 software. According to the material of anchors and whether the anchors were used, patients were divided into absorbable group, non-absorba- ble group and no anchor group. Results A total of 71 patients were finally included in this study. Patients with postoperative ARO had higher VAS at final follow-up (P<0.05). Patients without postoperative ARO had higher mean mHHS at final follow-up (P = 0.08) and higher percentage of passing minimal clinical important difference. The percentage and volume of postoperative ARO was significantly higher in patients who underwent acetabuloplasty and labral repair (P<0.05). The percentage and volume of postoperative ARO in absorbable group were significantly higher than the other groups (P<0.05). Conclusion There is a high percentage of ARO after hip arthroscopy for treatment of FAI and patients who have undergone labral repair and acetabuloplasty are more likely to have postoperative ARO. Using of absorbable anchors may increase the possibility and volume of postoperative ARO. Postoperative ARO may predict a worse clinical outcome.
Reference Key
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Authors Guanying Gao, Yan Xu
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Journal Journal of hip preservation surgery
Year 2026
DOI
10.1093/jhps/hnag043.080
URL
https://doi.org/10.1093/jhps/hnag043.080
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