{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T05:57:51Z","timestamp":1787637471571,"version":"build-2736575974"},"reference-count":38,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2023,8,29]],"date-time":"2023-08-29T00:00:00Z","timestamp":1693267200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["82072517"],"award-info":[{"award-number":["82072517"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Orthopaedic Surgery"],"published-print":{"date-parts":[[2023,10]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>Hip arthroscopy for the treatment of symptomatic borderline developmental dysplasia of the hip (BDDH) has been controversial. The purpose of this study was to retrospectively analyze minimum 2\u2010year outcomes of BDDH after arthroscopic surgery and explore the criteria and thresholds of the lateral center\u2010edge angle (LCEA) in arthroscopic surgery for BDDH.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Data were retrospectively collected from patients aged 18\u201350 who underwent arthroscopic surgery for BDDH and had an LCEA 18\u201325\u00b0 between September 2016 and June 2020. The consistency of interobserver and intraobserver measurements of bone\u2010edge LCEA was analyzed. Patients were divided into two groups based on LCEA (18\u201320\u00b0and 20\u201325\u00b0) and the results of arthroscopy compared between groups. Patient\u2010reported outcome (PRO) scores, consisting of the modified Harris hip score (mHHS), the visual analogue scale (VAS) and the international hip outcome tool\u201012 (IHOT\u201012), the minimal clinically important difference (MCID) and patient acceptable symptom status (PASS) were calculated.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>In 52 patients with \u22652\u2010year follow\u2010up, female patients accounted for 71.2% and the mean age was 30.8\u2009\u00b1\u20098.4\u2009years (range: 18 to 49\u2009years). There was a high level of agreement when measuring the bone\u2010edge LCEA definition of BDDH (Kappa\u2009=\u20090.921). Interobserver repeatability (ICC\u2009=\u20090.909, 95%CI: 0.847\u20130.947) and intraobserver repeatability (ICC\u2009=\u20090.944, 95%CI: 0.905\u20130.968) were excellent for bone\u2010edge LCEA measurements. In addition to LCEA and T\u00f6nnis angle, there were no significant differences in \u03b1 angle, neck stem angle, femoral anteversion angle, medial joint space, T\u00f6nnis grade of osteoarthritis, acetabular retroversion (8 sign), Cam deformity and anterior inferior iliac spine (AIIS) morphology between the two groups (<jats:italic>p<\/jats:italic>\u2009&gt;\u20090.05). Intraoperative findings and procedures showed no statistical difference between groups (<jats:italic>p<\/jats:italic>\u2009&gt;\u20090.05). The mean follow\u2010up time was 44.4\u2009\u00b1\u200911.0\u2009months (range: 25 to 64\u2009months). Postoperative VAS, mHHS and IHOT\u201012 scores in the LCEA 18\u201320\u00b0 group and the LCEA 20\u201325\u00b0 group were significantly improved compared with those before surgery, and there was no statistically significant difference in the percentage of MCID and PASS (mHHS and iHOT\u201012) between the groups (<jats:italic>p<\/jats:italic>\u2009&gt;\u20090.05).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Patients in the LCEA 18\u201320\u00b0 group and the LCEA 20\u201325\u00b0 group achieved favorable outcomes after arthroscopic surgery. LCEA 18\u00b0 (bone\u2010edge) should be the threshold for hip arthroscopic surgery in BDDH patients without obvious hip instability.<\/jats:p><\/jats:sec>","DOI":"10.1111\/os.13877","type":"journal-article","created":{"date-parts":[[2023,8,29]],"date-time":"2023-08-29T07:21:57Z","timestamp":1693293717000},"page":"2665-2673","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Lateral Center\u2010edge Angle of 18\u00b0 (Bone\u2010Edge): Threshold for Hip Arthroscopy Treatment in Patients with Borderline Developmental Dysplasia of the Hip?"],"prefix":"10.1111","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1953-6561","authenticated-orcid":false,"given":"Jia","family":"Zhang","sequence":"first","affiliation":[{"name":"Department of Orthopedics the Fourth Medical Center of Chinese PLA General Hospital  Beijing China"},{"name":"Medical School of Chinese PLA  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6513-8946","authenticated-orcid":false,"given":"Chunbao","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Orthopedics the Fourth Medical Center of Chinese PLA General Hospital  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3045-6685","authenticated-orcid":false,"given":"Jianping","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Orthopedics 920 Hospital of Joint Logistics Support Force  Kunming China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5181-9599","authenticated-orcid":false,"given":"Gang","family":"Zhao","sequence":"additional","affiliation":[{"name":"Department of Orthopedics the Fourth Medical Center of Chinese PLA General Hospital  Beijing China"},{"name":"Medical School of Chinese PLA  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5949-9545","authenticated-orcid":false,"given":"Yujie","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Orthopedics the Fourth Medical Center of Chinese PLA General Hospital  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2023,8,29]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/os.13042"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00590-021-02997-z"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546520914942"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1177\/23259671211040455"},{"issue":"58","key":"e_1_2_8_6_1","first-page":"7","article-title":"The anatomy and roentgenographic appearance of a normal hip joint","volume":"83","author":"Wiberg G","year":"1939","journal-title":"Acta Chir Scand"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.72B2.2312554"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1093\/jhps\/hnv041"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1097\/CM9.0000000000002483"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.otsr.2022.103283"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2017.08.285"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546518803367"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2020.05.035"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1177\/03635465231161348"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2022.08.023"},{"key":"e_1_2_8_16_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-020-06147-6"},{"key":"e_1_2_8_17_1","doi-asserted-by":"publisher","DOI":"10.1111\/os.13104"},{"key":"e_1_2_8_18_1","doi-asserted-by":"publisher","DOI":"10.5435\/JAAOS-D-17-00664"},{"key":"e_1_2_8_19_1","doi-asserted-by":"publisher","DOI":"10.1177\/2325967117740121"},{"key":"e_1_2_8_20_1","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports-2016-096743"},{"key":"e_1_2_8_21_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11999-013-2847-4"},{"key":"e_1_2_8_22_1","doi-asserted-by":"publisher","DOI":"10.1097\/00003086-200101000-00031"},{"key":"e_1_2_8_23_1","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.43B4.752"},{"key":"e_1_2_8_24_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2012.07.009"},{"key":"e_1_2_8_25_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546519865919"},{"key":"e_1_2_8_26_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546520951202"},{"key":"e_1_2_8_27_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546518812859"},{"key":"e_1_2_8_28_1","doi-asserted-by":"publisher","DOI":"10.2307\/2529310"},{"key":"e_1_2_8_29_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2021.04.052"},{"key":"e_1_2_8_30_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2021.04.051"},{"key":"e_1_2_8_31_1","doi-asserted-by":"publisher","DOI":"10.1177\/23259671211007401"},{"key":"e_1_2_8_32_1","doi-asserted-by":"publisher","DOI":"10.1177\/2325967117700589"},{"key":"e_1_2_8_33_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.eats.2018.03.015"},{"key":"e_1_2_8_34_1","doi-asserted-by":"publisher","DOI":"10.1093\/jhps\/hnaa048"},{"key":"e_1_2_8_35_1","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.104B7.BJJ-2021-1767.R1"},{"key":"e_1_2_8_36_1","doi-asserted-by":"publisher","DOI":"10.5435\/JAAOS-D-17-00810"},{"key":"e_1_2_8_37_1","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.20.00087"},{"key":"e_1_2_8_38_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-022-06933-4"},{"key":"e_1_2_8_39_1","doi-asserted-by":"publisher","DOI":"10.1177\/23259671221113837"}],"container-title":["Orthopaedic Surgery"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/os.13877","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,4]],"date-time":"2023-10-04T19:25:30Z","timestamp":1696447530000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/os.13877"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,8,29]]},"references-count":38,"journal-issue":{"issue":"10","published-print":{"date-parts":[[2023,10]]}},"alternative-id":["10.1111\/os.13877"],"URL":"https:\/\/doi.org\/10.1111\/os.13877","archive":["Portico"],"relation":{},"ISSN":["1757-7853","1757-7861"],"issn-type":[{"value":"1757-7853","type":"print"},{"value":"1757-7861","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,8,29]]},"assertion":[{"value":"2023-06-13","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2023-08-07","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2023-08-29","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}