PMID- 36651889 OWN - NLM STAT- MEDLINE DCOM- 20230120 LR - 20230314 IS - 1535-1386 (Electronic) IS - 0021-9355 (Linking) VI - 105 IP - 2 DP - 2023 Jan 18 TI - Outcomes of Periacetabular Osteotomy for Borderline Acetabular Dysplasia. PG - 137-144 LID - 10.2106/JBJS.22.00491 [doi] AB - BACKGROUND: The optimal surgical treatment (hip arthroscopy compared with periacetabular osteotomy [PAO]) for borderline acetabular dysplasia (lateral center-edge angle [LCEA], 18 degrees to 25 degrees ) remains a topic of debate. To date, the literature has focused primarily on arthroscopy outcomes, with only a few small reports on PAO outcomes. The purpose of this study was to define PAO outcomes in a large cohort of borderline hips. In a secondary analysis, we assessed the effect of prior failed arthroscopy, concurrent hip arthroscopy, and concurrent femoral osteoplasty on PAO outcomes in this cohort. METHODS: A prospective database was retrospectively reviewed for patients who underwent PAO for symptomatic instability in the setting of borderline dysplasia (LCEA, 18 degrees to 25 degrees ). Of the 232 identified hips, 186 (80.2%) were assessed at a mean follow-up of 3.3 +/- 2.0 years postoperatively. The mean patient age was 25.2 +/- 8.5 years (range, 14 to 45 years), and 88.2% were female. Thirty hips (16.1%) had undergone a failed prior arthroscopy. Arthroscopy was performed concurrently with the PAO in 130 hips (69.9%), and femoral osteoplasty was performed concurrently in 120 hips (64.5%). The modified Harris hip score (mHHS) was assessed relative to the minimal clinically important difference (MCID) of 8 and patient acceptable symptom state (PASS) of 74. Clinical failure was defined as a reoperation for persistent symptoms or a failure to achieve either the mHHS MCID or PASS. RESULTS: Of the 156 hips undergoing a primary surgical procedure, clinical success was achieved in 148 hips (94.9% [95% confidence interval (CI), 90.2% to 97.4%]). Two hips (1.3% [95% CI, 0.4% to 4.6%]) underwent reoperation (hip arthroscopy) for persistent symptoms and an additional 6 hips (3.8% [95% CI, 1.8% to 8.1%]) failed to achieve the mHHS MCID or PASS, for a clinical failure rate of 5.1% (95% CI, 2.6% to 9.8%); 8.8% reported dissatisfaction with the surgical procedure. Clinical failure was more frequent among the 30 hips (23.3% [95% CI, 11.8% to 40.9%]; p = 0.001) that had undergone a prior failed arthroscopy. There were no outcome differences between hips that had or had not undergone concurrent hip arthroscopy or femoral osteoplasty. CONCLUSIONS: This study demonstrates excellent early outcomes of PAO for borderline acetabular dysplasia, with significant clinical improvement in 94.9% of patients undergoing a primary surgical procedure; 91.2% were satisfied with the surgical procedure. LEVEL OF EVIDENCE: Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence. CI - Copyright (c) 2022 by The Journal of Bone and Joint Surgery, Incorporated. FAU - Nepple, Jeffrey J AU - Nepple JJ AUID- ORCID: 0000-0002-7582-1415 AD - Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, Missouri. FAU - Parilla, Frank W AU - Parilla FW AUID- ORCID: 0000-0002-7462-7362 FAU - Pashos, Gail E AU - Pashos GE AUID- ORCID: 0000-0003-3549-4998 FAU - Clohisy, John C AU - Clohisy JC AUID- ORCID: 0000-0001-7040-616 LA - eng PT - Journal Article DEP - 20221129 PL - United States TA - J Bone Joint Surg Am JT - The Journal of bone and joint surgery. American volume JID - 0014030 SB - IM CIN - J Bone Joint Surg Am. 2023 Jan 18;105(2):e6. PMID: 36651893 MH - Humans MH - Female MH - Adolescent MH - Young Adult MH - Adult MH - Middle Aged MH - Male MH - Retrospective Studies MH - Treatment Outcome MH - *Hip Dislocation/surgery MH - *Hip Dislocation, Congenital/surgery MH - Osteotomy/methods MH - Arthroscopy/methods MH - Hip Joint/surgery MH - Acetabulum/surgery COIS- Disclosure: The Disclosure of Potential Conflicts of Interest forms are provided with the online version of the article (http://links.lww.com/JBJS/H332). EDAT- 2023/01/19 06:00 MHDA- 2023/01/21 06:00 CRDT- 2023/01/18 10:42 PHST- 2023/01/18 10:42 [entrez] PHST- 2023/01/19 06:00 [pubmed] PHST- 2023/01/21 06:00 [medline] AID - 00004623-202301180-00006 [pii] AID - 10.2106/JBJS.22.00491 [doi] PST - ppublish SO - J Bone Joint Surg Am. 2023 Jan 18;105(2):137-144. doi: 10.2106/JBJS.22.00491. Epub 2022 Nov 29.