{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T14:00:40Z","timestamp":1785765640539,"version":"3.56.0"},"reference-count":18,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2023,4,14]],"date-time":"2023-04-14T00:00:00Z","timestamp":1681430400000},"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":["82002357"],"award-info":[{"award-number":["82002357"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100005230","name":"Natural Science Foundation of Chongqing","doi-asserted-by":"publisher","award":["cstc2021jcyj\u2010msxmX0703"],"award-info":[{"award-number":["cstc2021jcyj\u2010msxmX0703"]}],"id":[{"id":"10.13039\/501100005230","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Orthopaedic Surgery"],"published-print":{"date-parts":[[2023,6]]},"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>Increased torsional deformity of femur is one of the most important factors in recurrent patellofemoral instability. And distal femoral derotational osteotomy is an effective treatment option in patients with increased femoral torsional deformity. However, groin pain is a rare complication after femoral derotational osteotomy.<\/jats:p><\/jats:sec><jats:sec><jats:title>Case presentation<\/jats:title><jats:p>The patient was a 23\u2010year\u2010old female suffering from anterior knee pain and patellar instability in her left leg. Continuous CT scans of the hip, knee, and ankle were performed and the femoral anteversion was 44.99\u00b0. Considering the significant enlargement of the femoral internal torsion which may contribute most for dislocation of patella, we did a derotational osteotomy of distal femur. The anterior knee pain and patellar instability were resolved after surgery. The femoral internal torsion angle was corrected to 21.47\u00b0. But she developed left hip pain in the groin area which she had never encountered before 1\u2009year after the surgery. We believed that the hip pain was closely related to the surgery. And the imaging and follow\u2010up partly confirmed this.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The situation of the hip joint should be carefully evaluated before doing derotational osteotomy in recurrent patellofemoral instability and patient should be informed that derotational osteotomy may cause hip pain. Clinical studies are needed to further clarify the impact of derotational osteotomy on the hip.<\/jats:p><\/jats:sec>","DOI":"10.1111\/os.13740","type":"journal-article","created":{"date-parts":[[2023,4,14]],"date-time":"2023-04-14T09:00:58Z","timestamp":1681462858000},"page":"1702-1706","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Hip Pain after Distal Femoral Derotational Osteotomy for a Patient with Patellar Instability: A Case Report"],"prefix":"10.1111","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8439-3483","authenticated-orcid":false,"given":"De\u2010Jie","family":"Fu","sequence":"first","affiliation":[{"name":"Center for Joint Surgery Southwest Hospital, Third Military Medical University  No. 30 Gaotanyan Street, Shapingba District Chongqing 400038 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6861-7291","authenticated-orcid":false,"given":"Kai","family":"Lei","sequence":"additional","affiliation":[{"name":"Center for Joint Surgery Southwest Hospital, Third Military Medical University  No. 30 Gaotanyan Street, Shapingba District Chongqing 400038 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4334-2695","authenticated-orcid":false,"given":"Li\u2010Ming","family":"Liu","sequence":"additional","affiliation":[{"name":"Center for Joint Surgery Southwest Hospital, Third Military Medical University  No. 30 Gaotanyan Street, Shapingba District Chongqing 400038 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4718-6706","authenticated-orcid":false,"given":"Lin","family":"Guo","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics, Sports Medicine Center Southwest Hospital, Third Military Medical University  No. 30 Gaotanyan Street, Shapingba District Chongqing 400038 China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2023,4,14]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.O.00354"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1007\/s002640050053"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.clinbiomech.2017.06.007"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00402-020-03598-x"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00402-011-1303-8"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-019-05561-9"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1097\/01241398-198505000-00007"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1097\/JSA.0b013e31803035ae"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-197355080-00017"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1007\/s12178-020-09688-y"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1007\/s12178-018-9483-2"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00402-011-1303-8"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-018-5212-z"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00402-020-03598-x"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-018-5065-5"},{"key":"e_1_2_7_17_1","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-199912000-00014"},{"key":"e_1_2_7_18_1","doi-asserted-by":"publisher","DOI":"10.1097\/BPO.0b013e3181c1e961"},{"key":"e_1_2_7_19_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2016.09.015"}],"container-title":["Orthopaedic Surgery"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/os.13740","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,8,19]],"date-time":"2023-08-19T20:28:10Z","timestamp":1692476890000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/os.13740"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,4,14]]},"references-count":18,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2023,6]]}},"alternative-id":["10.1111\/os.13740"],"URL":"https:\/\/doi.org\/10.1111\/os.13740","archive":["Portico"],"relation":{},"ISSN":["1757-7853","1757-7861"],"issn-type":[{"value":"1757-7853","type":"print"},{"value":"1757-7861","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,4,14]]},"assertion":[{"value":"2022-11-16","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2023-03-21","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2023-04-14","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}