{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T02:59:40Z","timestamp":1790305180587,"version":"4.1.0"},"reference-count":50,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T00:00:00Z","timestamp":1790208000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T00:00:00Z","timestamp":1790208000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100012166","name":"National Key Research and Development of China","doi-asserted-by":"publisher","award":["2023YFE0119100"],"award-info":[{"award-number":["2023YFE0119100"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100012166","name":"National Key Research and Development of China","doi-asserted-by":"publisher","award":["SQ2024YFC3600017"],"award-info":[{"award-number":["SQ2024YFC3600017"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["82372496"],"award-info":[{"award-number":["82372496"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100009399","name":"Peking University Third Hospital","doi-asserted-by":"publisher","award":["BYSYZD2023011"],"award-info":[{"award-number":["BYSYZD2023011"]}],"id":[{"id":"10.13039\/501100009399","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["arthroscopyjournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Arthroscopy"],"abstract":"\n Purpose<\/jats:title>\n To evaluate the contralateral acetabular labral changes occurring between staged bilateral hip arthroscopies in patients with femoroacetabular impingement syndrome and to explore their correlation with clinical outcomes with a minimum 2\u2010year follow\u2010up.<\/jats:p>\n <\/jats:sec>\n \n Methods<\/jats:title>\n A consecutive cohort of patients diagnosed with bilateral femoroacetabular impingement syndrome that underwent staged bilateral hip arthroscopy between 2011 and 2023 was included. Magnetic resonance imaging of the contralateral hip was obtained at the time of each staged procedure to evaluate labral size and labral tear classification. Preoperative and minimum 2\u2010year patient\u2010reported outcomes (PROs) were collected including modified Harris Hip Score, International Hip Outcome Tool\u201012, Hip Outcome Score\u2010Activity of Daily Living Scale, Hip Outcome Score\u2010Sports Specific Subscale, University of California at Los Angeles score, and visual analog scale. Rates of achieving the minimal clinically important difference and patient acceptable symptom state were calculated. The relations between acetabular labral changes, possible confounding variables, and PROs were evaluated using correlation analysis.<\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n \n A total of 46 patients were included in the study. The mean interval between staged bilateral procedures was 49.6\u2009\u00b1\u200939.7\u2009months (range, 8.5\u2010190.6\u2009months). A significant decrease in labral height at the 3:00 position of the contralateral hip was observed between the staged bilateral hip arthroscopies, decreasing from 4.0\u2009\u00b1\u20090.9 to 3.7\u2009\u00b1\u20090.9\u2009mm (\n P<\/jats:italic>\n \u2009=\u2009.032). No significant changes in labral size at the 11:30 or 1:30 positions of the contralateral hip were observed between the staged procedures (\n P<\/jats:italic>\n \u2009>\u2009.05). The labral tear classification also presented significant deterioration during the procedures (\n P<\/jats:italic>\n \u2009<\u2009.001), characterized by a decrease in type 1 to 3 tears and an increase in type 4 tears. All PROs showed significant improvements at a mean follow\u2010up of 5.3\u2009\u00b1\u20091.6\u2009years (\n P<\/jats:italic>\n \u2009<\u2009.001), with high rates of achieving the minimal clinically important difference (>64%) and patient acceptable symptom state (>71%). However, no significant correlations were observed between labral changes, patient characteristics, and PROs (\n P<\/jats:italic>\n \u2009>\u2009.05).\n <\/jats:p>\n <\/jats:sec>\n \n Conclusions<\/jats:title>\n Progressive labral deterioration occurred in the contralateral hip during staged bilateral hip arthroscopies for patients with femoroacetabular impingement syndrome, with a modest but significant reduction in labral height at the 3:00 position and worsening of labral tear classification. Alterations in labral size and labral tear classification showed no significant association with minimum 2\u2010year postoperative outcomes.<\/jats:p>\n <\/jats:sec>\n \n Level of Evidence<\/jats:title>\n Level IV, retrospective case series.<\/jats:p>\n <\/jats:sec>","DOI":"10.1002\/arj.70605","type":"journal-article","created":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T02:49:05Z","timestamp":1790304545000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Progressive Contralateral Acetabular Labral Deterioration Occurs Between Staged Bilateral Hip Arthroscopies for Femoroacetabular Impingement Syndrome Without Affecting Clinical Outcomes"],"prefix":"10.1002","author":[{"given":"Zhuohan","family":"Cao","sequence":"first","affiliation":[{"name":"Department of Sports Medicine Peking University Third Hospital, Institute of Sports Medicine of Peking University Beijing China"},{"name":"Beijing Key Laboratory of Research and Translation for Drugs and Medical Devices in Precision Diagnosis and Treatment of Sports Injuries Beijing China"},{"name":"Engineering Research Center of Sports Trauma Treatment Technology and Devices Ministry of Education Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guanying","family":"Gao","sequence":"additional","affiliation":[{"name":"Department of Sports Medicine Peking University Third Hospital, Institute of Sports Medicine of Peking University Beijing China"},{"name":"Beijing Key Laboratory of Research and Translation for Drugs and Medical Devices in Precision Diagnosis and Treatment of Sports Injuries Beijing China"},{"name":"Engineering Research Center of Sports Trauma Treatment Technology and Devices Ministry of Education Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weijie","family":"Lin","sequence":"additional","affiliation":[{"name":"Department of Sports Medicine Peking University Third Hospital, Institute of Sports Medicine of Peking University Beijing China"},{"name":"Beijing Key Laboratory of Research and Translation for Drugs and Medical Devices in Precision Diagnosis and Treatment of Sports Injuries Beijing China"},{"name":"Engineering Research Center of Sports Trauma Treatment Technology and Devices Ministry of Education Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rongge","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Sports Medicine Peking University Third Hospital, Institute of Sports Medicine of Peking University Beijing China"},{"name":"Beijing Key Laboratory of Research and Translation for Drugs and Medical Devices in Precision Diagnosis and Treatment of Sports Injuries Beijing China"},{"name":"Engineering Research Center of Sports Trauma Treatment Technology and Devices Ministry of Education Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yichuan","family":"Zhu","sequence":"additional","affiliation":[{"name":"Department of Sports Medicine Peking University Third Hospital, Institute of Sports Medicine of Peking University Beijing China"},{"name":"Beijing Key Laboratory of Research and Translation for Drugs and Medical Devices in Precision Diagnosis and Treatment of Sports Injuries Beijing China"},{"name":"Engineering Research Center of Sports Trauma Treatment Technology and Devices Ministry of Education Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiang","family":"Zhou","sequence":"additional","affiliation":[{"name":"Department of Sports Medicine Peking University Third Hospital, Institute of Sports Medicine of Peking University Beijing China"},{"name":"Beijing Key Laboratory of Research and Translation for Drugs and Medical Devices in Precision Diagnosis and Treatment of Sports Injuries Beijing China"},{"name":"Engineering Research Center of Sports Trauma Treatment Technology and Devices Ministry of Education Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0186-5834","authenticated-orcid":false,"given":"Jin\u2010Woo","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Nowon Eulji Medical Center Eulji University Seoul Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0504-7169","authenticated-orcid":false,"given":"Jianquan","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Sports Medicine Peking University Third Hospital, Institute of Sports Medicine of Peking University Beijing China"},{"name":"Beijing Key Laboratory of Research and Translation for Drugs and Medical Devices in Precision Diagnosis and Treatment of Sports Injuries Beijing China"},{"name":"Engineering Research Center of Sports Trauma Treatment Technology and Devices Ministry of Education Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2735-9542","authenticated-orcid":false,"given":"Yan","family":"Xu","sequence":"additional","affiliation":[{"name":"Department of Sports Medicine Peking University Third Hospital, Institute of Sports Medicine of Peking University Beijing China"},{"name":"Beijing Key Laboratory of Research and Translation for Drugs and Medical Devices in Precision Diagnosis and Treatment of Sports Injuries Beijing China"},{"name":"Engineering Research Center of Sports Trauma Treatment Technology and Devices Ministry of Education Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,9,24]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"crossref","first-page":"315","DOI":"10.1093\/jhps\/hnae034","article-title":"Review of femoroacetabular impingement 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