{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T05:20:58Z","timestamp":1782969658580,"version":"3.54.5"},"reference-count":22,"publisher":"Georg Thieme Verlag KG","issue":"07","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Knee Surg"],"published-print":{"date-parts":[[2023,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>An updated understanding of unicompartmental knee arthroplasty (UKA) utilization is needed. The purpose of this study was to evaluate temporal trends in volume and utilization of UKA among early-career surgeons and to examine the influence of fellowship training status on utilization of UKA. The American Board of Orthopaedic Surgery (ABOS) Part-II database was queried from 2010 to 2019 to identify candidates who reported \u22651 total knee arthroplasty (TKA) or UKA. Self-reported history of fellowship training experiences was recorded. \u201cHigh-volume\u201d surgeons were defined as performing \u22657 UKA over the ABOS Part-II collection period. Trends were evaluated with the Cochrane\u2013Armitage test and generalized linear models. From 2010 to 2019, a total of 2,045 candidates (28.1%) reported \u22651 TKA, while 585 candidates (8.0%) reported \u22651 UKA. The number of candidates reporting \u22651 UKA significantly increased (p\u2009=\u20090.001). An increase in UKA volume was observed over the study period (p\u2009&lt;\u20090.001). Rates of utilization of UKA relative to TKA did not change significantly over the study period (p\u2009=\u20090.11). Sixty-three (2.4%) candidates met the study definition for high-volume UKA utilization. UKA procedure volume increased among ABOS Part-II candidates over the study period; however, rates of UKA utilization relative to TKA volume remained unchanged. Increasing volume of UKA performed by early-career surgeons is likely secondary to an increased number of surgeons trained in adult reconstruction. Only 2.4% of candidates who reported performing at least one knee arthroplasty procedure met the threshold for a high-volume UKA practice. Early-career surgeons should remain conscientious of UKA volume in their practice.<\/jats:p>","DOI":"10.1055\/s-0042-1742648","type":"journal-article","created":{"date-parts":[[2022,2,3]],"date-time":"2022-02-03T23:58:40Z","timestamp":1643932720000},"page":"759-766","source":"Crossref","is-referenced-by-count":8,"title":["Unicompartmental Knee Arthroplasty Utilization among Early Career Surgeons: An Evaluation of the American Board of Orthopaedic Surgery Part-II Database"],"prefix":"10.1055","volume":"36","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3535-5584","authenticated-orcid":false,"given":"Christopher N.","family":"Carender","sequence":"additional","affiliation":[{"name":"Department of Orthopedics and Rehabilitation, University of Iowa Hospitals and Clinics, Iowa City, Iowa"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kyle R.","family":"Duchman","sequence":"additional","affiliation":[{"name":"Department of Orthopedics and Rehabilitation, University of Iowa Hospitals and Clinics, Iowa City, Iowa"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3038-3391","authenticated-orcid":false,"given":"Alan G.","family":"Shamrock","sequence":"additional","affiliation":[{"name":"Department of Orthopedics and Rehabilitation, University of Iowa Hospitals and Clinics, Iowa City, Iowa"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Natalie A.","family":"Glass","sequence":"additional","affiliation":[{"name":"Department of Orthopedics and Rehabilitation, University of Iowa Hospitals and Clinics, Iowa City, Iowa"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Timothy S.","family":"Brown","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Houston Methodist, Houston, Texas"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"194","published-online":{"date-parts":[[2022,2,3]]},"reference":[{"issue":"04","key":"ref1","first-page":"252","article-title":"Consensus statement on indications and contraindications for medial unicompartmental knee arthroplasty","volume":"24","author":"K R Berend","year":"2015","journal-title":"J Surg Orthop Adv"},{"issue":"02","key":"ref2","doi-asserted-by":"crossref","first-page":"372","DOI":"10.1016\/j.arth.2017.09.052","article-title":"Predicting the feasibility of correcting mechanical axis in large varus deformities with unicompartmental knee arthroplasty","volume":"33","author":"L J Kleeblad","year":"2018","journal-title":"J Arthroplasty"},{"issue":"10","key":"ref3","doi-asserted-by":"crossref","first-page":"1968","DOI":"10.2106\/00004623-200310000-00016","article-title":"Unicompartmental knee arthroplasty in patients sixty years of age or younger","volume":"85","author":"D W 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