{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,20]],"date-time":"2026-10-20T12:21:33Z","timestamp":1792498893407,"version":"4.5.0"},"reference-count":37,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2022,12,26]],"date-time":"2022-12-26T00:00:00Z","timestamp":1672012800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"},{"start":{"date-parts":[[2022,12,26]],"date-time":"2022-12-26T00:00:00Z","timestamp":1672012800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"},{"start":{"date-parts":[[2022,12,26]],"date-time":"2022-12-26T00:00:00Z","timestamp":1672012800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2022,12,26]],"date-time":"2022-12-26T00:00:00Z","timestamp":1672012800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2022,11,23]],"date-time":"2022-11-23T00:00:00Z","timestamp":1669161600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100000312","name":"Joseph Rowntree Foundation","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100000312","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100001765","name":"Musculoskeletal Transplant Foundation","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100001765","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100007307","name":"Arthrex","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100007307","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["arthroscopysportsmedicineandrehabilitation.org","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Arthroscopy, Sports Medicine, and Rehabil."],"published-print":{"date-parts":[[2023,2]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To compare the clinical efficacy in the resolution of patellar instability, patient\u2010reported outcomes (PROs), and complication and reoperation rates between patients who underwent grooveplasty (proximal trochleoplasty) and patients who underwent trochleoplasty as part of a combined patellofemoral stabilization procedure.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      A retrospective chart review was performed to identify a cohort of patients who underwent grooveplasty and a cohort who underwent trochleoplasty at the time of patellar stabilization. Complications, reoperations, and PRO scores (Tegner, Kujala, and International Knee Documentation Committee scores) were collected at final follow\u2010up. The Kruskal\u2010Wallis test and Fisher exact test were performed when appropriate, and\n                      <jats:italic>P<\/jats:italic>\n                      &lt; .05 was considered significant.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Overall, 17 grooveplasty patients (18 knees) and 15 trochleoplasty patients (15 knees) were included. Seventy\u2010nine percent of patients were female, and the average follow\u2010up period was 3.9 years. The mean age at first dislocation was 11.8 years overall; most patients (65%) had more than 10 lifetime instability events and 76% of patients underwent prior knee\u2010stabilizing procedures. Trochlear dysplasia (Dejour classification) was similar between cohorts. Patients who underwent grooveplasty had a higher activity level (\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0= .007) and a higher degree of patellar facet chondromalacia (\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0= .008) at baseline. At final follow\u2010up, no patients had recurrent symptomatic instability after grooveplasty compared with 5 patients in the trochleoplasty cohort (\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0= .013). There were no differences in postoperative International Knee Documentation Committee scores (\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0= .870), Kujala scores (\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0= .059), or Tegner scores (\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0= .052). Additionally, there were no differences in complication rates (17% in grooveplasty cohort vs 13% in trochleoplasty cohort,\n                      <jats:italic>P<\/jats:italic>\n                      &gt; .999) or reoperation rates (22% vs 13%,\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0= .665).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Proximal trochlear reshaping and removal of the supratrochlear spur (grooveplasty) in patients with severe trochlear dysplasia may offer an alternative strategy to complete trochleoplasty for the treatment of trochlear dysplasia in complex cases of patellofemoral instability. Grooveplasty patients showed less recurrent instability and similar PROs and reoperation rates compared with trochleoplasty patients.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence<\/jats:title>\n                    <jats:p>Level III, retrospective comparative study.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1016\/j.asmr.2022.11.020","type":"journal-article","created":{"date-parts":[[2022,12,26]],"date-time":"2022-12-26T15:21:17Z","timestamp":1672068077000},"update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":14,"title":["Grooveplasty Compared With Trochleoplasty for the Treatment of Trochlear Dysplasia in the Setting of Patellar Instability"],"prefix":"10.1002","volume":"5","author":[{"given":"Anna K.","family":"Reinholz","sequence":"first","affiliation":[{"name":"Department of Orthopedic Surgery Mayo Clinic Rochester Minnesota U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sara E.","family":"Till","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery Mayo Clinic Rochester Minnesota U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matthew M.","family":"Crowe","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery Mayo Clinic Jacksonville Florida U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mario","family":"Hevesi","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery Mayo Clinic Rochester Minnesota U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel B.F.","family":"Saris","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery Mayo Clinic Rochester Minnesota U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael J.","family":"Stuart","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery Mayo Clinic Rochester Minnesota U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aaron J.","family":"Krych","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery Mayo Clinic Rochester Minnesota U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2022,12,26]]},"reference":[{"key":"e_1_2_3_2_2","doi-asserted-by":"publisher","DOI":"10.1177\/1941738117725055"},{"key":"e_1_2_3_3_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546519888467"},{"key":"e_1_2_3_4_2","doi-asserted-by":"publisher","DOI":"10.1177\/03635465221090644"},{"key":"e_1_2_3_5_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546503260788"},{"key":"e_1_2_3_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2018.09.017"},{"key":"e_1_2_3_7_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF01552649"},{"key":"e_1_2_3_8_2","first-page":"45","article-title":"La dysplasie de la trochl\u00e9e f\u00e9morale [Dysplasia of the femoral trochlea]","volume":"76","author":"Dejour H.","year":"1990","journal-title":"Rev Chir Orthop Reparatrice Appar Mot"},{"key":"e_1_2_3_9_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546520958423"},{"key":"e_1_2_3_10_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-012-2331-9"},{"key":"e_1_2_3_11_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.otsr.2021.103160"},{"key":"e_1_2_3_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.eats.2017.08.061"},{"key":"e_1_2_3_13_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00264-009-0933-8"},{"key":"e_1_2_3_14_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-004-0570-0"},{"key":"e_1_2_3_15_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.otsr.2011.07.013"},{"key":"e_1_2_3_16_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.eats.2020.06.009"},{"key":"e_1_2_3_17_2","doi-asserted-by":"publisher","DOI":"10.1097\/JSA.0b013e31826a1d37"},{"key":"e_1_2_3_18_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.otsr.2015.01.017"},{"key":"e_1_2_3_19_2","first-page":"130","article-title":"Patellar instability with recurrent dislocation due to patellofemoral dysplasia. Results after surgical treatment","volume":"48","author":"Peterson L.","year":"1988","journal-title":"Bull Hosp Jt Dis Orthop Inst"},{"key":"e_1_2_3_20_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-017-4584-9"},{"key":"e_1_2_3_21_2","doi-asserted-by":"crossref","unstructured":"Peterson L Vasiliades HS. Proximal open trochleoplasty (grooveplasty). In: Zaffagnini S Dejour D Arendt EA eds. Patellofemoral pain instability and arthritis: Clinical presentation imaging and treatment. Volume 1. New York: Springer 2010;213\u2010224.","DOI":"10.1007\/978-3-642-05424-2_27"},{"key":"e_1_2_3_22_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.eats.2021.05.027"},{"key":"e_1_2_3_23_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.eats.2021.10.014"},{"key":"e_1_2_3_24_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546513478579"},{"key":"e_1_2_3_25_2","doi-asserted-by":"publisher","DOI":"10.1302\/2058-5241.2.160081"},{"key":"e_1_2_3_26_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-016-4365-x"},{"key":"e_1_2_3_27_2","doi-asserted-by":"publisher","DOI":"10.1177\/03635465211063914"},{"key":"e_1_2_3_28_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2020.04.017"},{"key":"e_1_2_3_29_2","doi-asserted-by":"crossref","DOI":"10.1177\/23259671211010404","article-title":"Outcomes after deepening trochleoplasty and concomitant realignment in patients with severe trochlear dysplasia with chronic patellofemoral pain: Results at 2\u2010year follow\u2010up","volume":"9","author":"Zimmermann F.","year":"2021","journal-title":"Orthop J Sport Med"},{"key":"e_1_2_3_30_2","doi-asserted-by":"publisher","DOI":"10.1007\/s12178-022-09740-z"},{"key":"e_1_2_3_31_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-006-0148-0"},{"key":"e_1_2_3_32_2","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.88B10.17834"},{"key":"e_1_2_3_33_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-014-3013-6"},{"key":"e_1_2_3_34_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546513482302"},{"key":"e_1_2_3_35_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-018-5311-x"},{"key":"e_1_2_3_36_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-022-06954-z"},{"key":"e_1_2_3_37_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-017-4766-5"},{"key":"e_1_2_3_38_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2020.05.050"}],"container-title":["Arthroscopy, Sports Medicine, and Rehabilitation"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S2666061X22001936?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S2666061X22001936?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/arthroscopyjournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1016\/j.asmr.2022.11.020","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/arthroscopyjournals.onlinelibrary.wiley.com\/doi\/full-xml\/10.1016\/j.asmr.2022.11.020","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/arthroscopyjournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1016\/j.asmr.2022.11.020","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,3,15]],"date-time":"2026-03-15T08:50:30Z","timestamp":1773564630000},"score":1,"resource":{"primary":{"URL":"https:\/\/arthroscopyjournals.onlinelibrary.wiley.com\/doi\/10.1016\/j.asmr.2022.11.020"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,12,26]]},"references-count":37,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2023,2]]}},"alternative-id":["10.1016\/j.asmr.2022.11.020"],"URL":"https:\/\/doi.org\/10.1016\/j.asmr.2022.11.020","archive":["Portico"],"relation":{},"ISSN":["2666-061X","2666-061X"],"issn-type":[{"value":"2666-061X","type":"print"},{"value":"2666-061X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,12,26]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Grooveplasty Compared With Trochleoplasty for the Treatment of Trochlear Dysplasia in the Setting of Patellar Instability","name":"articletitle","label":"Article Title"},{"value":"Arthroscopy, Sports Medicine, and Rehabilitation","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.asmr.2022.11.020","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2022 Published by Elsevier Inc. on behalf of the Arthroscopy Association of North America.","name":"copyright","label":"Copyright"}]}}