{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T10:51:51Z","timestamp":1791888711938,"version":"4.3.4"},"reference-count":33,"publisher":"Georg Thieme Verlag KG","issue":"14","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Knee Surg"],"published-print":{"date-parts":[[2022,12]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Introduction\u2003Isolated medial knee osteoarthritis can be surgically treated with either unicompartmental knee arthroplasty (UKA) or high tibial osteotomy (HTO). Proponents of UKA suggest superior survivorship, while HTO offers theoretically improved alignment and joint preservation delaying total knee arthroplasty (TKA). Therefore, we compared complications in a large population of patients undergoing UKAs or HTOs. We specifically assessed 90 days, 1 year, and 2 years: (1) periprosthetic joint infection (PJI) rates, (2) conversion to TKA rates, as well as (3) complication rates.<\/jats:p>\n                  <jats:p>Methods\u2003A review of an administrative claims database was used to identify patients undergoing primary UKA (n\u2009=\u200913,674) or HTO (n\u2009=\u20091,096) from January 1, 2010 to December 31, 2019. Complication rates at 90 days, 1 year, and 2 years were compared between groups using unadjusted odds ratios (ORs) with 95% confidence intervals. Subsequently, multivariate logistic regressions were performed for PJI and conversion to TKA rates.<\/jats:p>\n                  <jats:p>Results\u2003At all time points, patients who underwent UKA were associated with lower rates of infection compared with those who underwent HTOs (all OR \u2264 0.51, all p \u2264 0.010). After 1 year, patients who received UKAs were found to have lower risk of requiring a conversion to a TKA versus those who received HTOs (all OR \u2264 0.55, all p\u2009&lt;\u20090.001). Complications such as dislocations, periprosthetic fractures, and surgical site infections were found at lower odds in UKA compared with HTO patients.<\/jats:p>\n                  <jats:p>Conclusion\u2003This study provides large-scale analyses demonstrating that UKA is associated with lower infection rates and fewer conversions to TKA compared with patients who have undergone HTO. Dislocations, periprosthetic fractures, and surgical site infections were also found to be lower among UKA patients. However, with careful patient selection, good results and preservation of the native knee are achieved with HTOs. Therefore, UKA versus HTO may be an important discussion to have with patients in an effort to lower the incidence of postoperative infections and complications.<\/jats:p>","DOI":"10.1055\/s-0042-1757597","type":"journal-article","created":{"date-parts":[[2022,12,20]],"date-time":"2022-12-20T18:48:50Z","timestamp":1671562130000},"page":"1518-1523","source":"Crossref","is-referenced-by-count":15,"title":["Unicompartmental Knee Arthroplasty Has Lower Infection, Conversion, and Complication Rates Compared to High Tibial Osteotomy"],"prefix":"10.1055","volume":"35","author":[{"given":"Michael E.","family":"Kahan","sequence":"additional","affiliation":[{"name":"LifeBridge Health, Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, Baltimore, Maryland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9647-7193","authenticated-orcid":false,"given":"Zhongming","family":"Chen","sequence":"additional","affiliation":[{"name":"LifeBridge Health, Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, Baltimore, Maryland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nathan R.","family":"Angerett","sequence":"additional","affiliation":[{"name":"LifeBridge Health, Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, Baltimore, Maryland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Oliver C.","family":"Sax","sequence":"additional","affiliation":[{"name":"LifeBridge Health, Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, Baltimore, Maryland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sandeep S.","family":"Bains","sequence":"additional","affiliation":[{"name":"LifeBridge Health, Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, Baltimore, Maryland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael J.","family":"Assayag","sequence":"additional","affiliation":[{"name":"LifeBridge Health, Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, Baltimore, Maryland"},{"name":"LifeBridge Health, Rubin Institute for Advanced Orthopedics, International Center for Limb Lengthening, Sinai Hospital of Baltimore, Baltimore, Maryland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5651-2625","authenticated-orcid":false,"given":"Ronald E.","family":"Delanois","sequence":"additional","affiliation":[{"name":"LifeBridge Health, Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, Baltimore, Maryland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"James","family":"Nace","sequence":"additional","affiliation":[{"name":"LifeBridge Health, Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, Baltimore, Maryland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"194","published-online":{"date-parts":[[2022,12,20]]},"reference":[{"issue":"04","key":"ref1","doi-asserted-by":"crossref","first-page":"445","DOI":"10.1016\/j.joca.2020.10.011","article-title":"The compartmental distribution of knee osteoarthritis \u2013 a systematic review and meta-analysis","volume":"29","author":"J C Stoddart","year":"2021","journal-title":"Osteoarthritis Cartilage"},{"issue":"03","key":"ref2","doi-asserted-by":"crossref","first-page":"227","DOI":"10.1111\/os.12395","article-title":"Patterns of compartment involvement in end-stage knee osteoarthritis in a Chinese orthopedic center: implications for implant choice","volume":"10","author":"W J Wang","year":"2018","journal-title":"Orthop Surg"},{"issue":"08","key":"ref3","doi-asserted-by":"crossref","first-page":"1361","DOI":"10.1007\/s00402-021-03790-7","article-title":"Unicondylar knee replacement versus total knee replacement for the treatment of medial knee osteoarthritis: a systematic review and meta-analysis","volume":"141","author":"M Deng","year":"2021","journal-title":"Arch Orthop Trauma Surg"},{"key":"ref4","doi-asserted-by":"crossref","first-page":"746","DOI":"10.1016\/S0140-6736(19)31281-4","article-title":"The clinical and cost-effectiveness of total versus partial knee replacement in patients with medial compartment osteoarthritis (TOPKAT): 5-year outcomes of a randomised controlled trial","volume":"394","author":"D J Beard","year":"2019","journal-title":"Lancet"},{"issue":"11","key":"ref5","doi-asserted-by":"crossref","first-page":"721","DOI":"10.21037\/atm.2020.01.131","article-title":"Medial femorotibial osteoarthritis of the knee: total or partial knee replacement?","volume":"8","author":"J A Argenson","year":"2020","journal-title":"Ann Transl Med"},{"issue":"08","key":"ref6","doi-asserted-by":"crossref","first-page":"e94","DOI":"10.5435\/JAAOS-D-16-00160","article-title":"AAOS clinical practice guideline: surgical management of osteoarthritis of the knee: evidence-based guideline","volume":"24","author":"K L Weber","year":"2016","journal-title":"J Am Acad Orthop Surg"},{"issue":"08","key":"ref7","doi-asserted-by":"crossref","first-page":"e87","DOI":"10.5435\/JAAOS-D-16-00159","article-title":"Surgical management of osteoarthritis of the knee: evidence-based guideline","volume":"24","author":"B J McGrory","year":"2016","journal-title":"J Am Acad Orthop Surg"},{"issue":"09","key":"ref8","doi-asserted-by":"crossref","first-page":"e194","DOI":"10.5435\/JAAOS-D-17-00425","article-title":"AAOS Appropriate Use Criteria: surgical management of osteoarthritis of the knee","volume":"26","author":"P A Manner","year":"2018","journal-title":"J Am Acad Orthop Surg"},{"issue":"09","key":"ref9","doi-asserted-by":"crossref","first-page":"e191","DOI":"10.5435\/JAAOS-D-17-00424","article-title":"Surgical management of osteoarthritis of the knee","volume":"26","author":"R H Quinn","year":"2018","journal-title":"J Am Acad Orthop Surg"},{"issue":"11","key":"ref10","doi-asserted-by":"crossref","first-page":"2493","DOI":"10.1007\/s00264-018-4272-5","article-title":"Unicompartmental knee arthroplasty is superior to high tibial osteotomy in post-operative recovery and participation in recreational and sports activities","volume":"43","author":"M S Kim","year":"2019","journal-title":"Int Orthop"},{"issue":"01","key":"ref11","doi-asserted-by":"crossref","first-page":"50","DOI":"10.1186\/s13018-017-0552-9","article-title":"Unicompartmental knee arthroplasty, is it superior to high tibial osteotomy in treating unicompartmental osteoarthritis? A meta-analysis and systemic review","volume":"12","author":"M B Santoso","year":"2017","journal-title":"J Orthop Surg Res"},{"issue":"05","key":"ref12","doi-asserted-by":"crossref","first-page":"1372","DOI":"10.1177\/0363546520948861","article-title":"Return to physical activity after high tibial osteotomy or unicompartmental knee arthroplasty: a systematic review and pooling data analysis","volume":"49","author":"J Belsey","year":"2021","journal-title":"Am J Sports Med"},{"issue":"50","key":"ref13","doi-asserted-by":"crossref","first-page":"e9268","DOI":"10.1097\/MD.0000000000009268","article-title":"Better clinical outcomes after unicompartmental knee arthroplasty when comparing with high tibial osteotomy","volume":"96","author":"S B Han","year":"2017","journal-title":"Medicine (Baltimore)"},{"issue":"01","key":"ref14","doi-asserted-by":"crossref","first-page":"127","DOI":"10.1186\/s12891-022-05080-8","article-title":"A comparative study of 21,194 UKAs and 49,270 HTOs for the risk of unanticipated events in mid-age patients from the national claims data in South Korea","volume":"23","author":"S H Lee","year":"2022","journal-title":"BMC Musculoskelet Disord"},{"issue":"12","key":"ref15","doi-asserted-by":"crossref","first-page":"3878","DOI":"10.1016\/j.arth.2021.08.001","article-title":"Unicompartmental knee arthroplasty: more conversions, fewer complications than proximal tibial osteotomy in a young population","volume":"36","author":"D L Rodkey","year":"2021","journal-title":"J Arthroplasty"},{"issue":"01","key":"ref16","doi-asserted-by":"crossref","first-page":"77","DOI":"10.1016\/j.otsr.2018.11.001","article-title":"Predictive factors for satisfaction after contemporary unicompartmental knee arthroplasty and high tibial osteotomy in isolated medial femorotibial osteoarthritis","volume":"105","author":"I J Koh","year":"2019","journal-title":"Orthop Traumatol Surg Res"},{"issue":"05","key":"ref17","doi-asserted-by":"crossref","first-page":"1562","DOI":"10.1016\/j.arth.2020.11.008","article-title":"Comparison of long-term survival analysis between open-wedge high tibial osteotomy and unicompartmental knee arthroplasty","volume":"36","author":"Q H Jin","year":"2021","journal-title":"J Arthroplasty"},{"issue":"08","key":"ref18","doi-asserted-by":"crossref","first-page":"1727","DOI":"10.3390\/jcm10081727","article-title":"Risk factor analysis for infection after medial open wedge high tibial osteotomy","volume":"10","author":"T W Liu","year":"2021","journal-title":"J Clin Med"},{"key":"ref19","doi-asserted-by":"crossref","first-page":"117","DOI":"10.1016\/j.artd.2021.06.006","article-title":"Unicompartmental knee arthroplasty is associated with a lower rate of periprosthetic joint infection compared to total knee arthroplasty","volume":"10","author":"C S Lee","year":"2021","journal-title":"Arthroplast Today"},{"issue":"02","key":"ref20","doi-asserted-by":"crossref","first-page":"429","DOI":"10.1007\/s00167-020-05943-4","article-title":"Type of bone graft and primary diagnosis were associated with nosocomial surgical site infection after high tibial osteotomy: analysis of a national database","volume":"29","author":"M Kawata","year":"2021","journal-title":"Knee Surg Sport Traumatol Arthrosc"},{"issue":"05","key":"ref21","doi-asserted-by":"crossref","first-page":"999","DOI":"10.2106\/JBJS.C.00568","article-title":"Results of unicompartmental knee arthroplasty at a minimum of ten years of follow-up","volume":"87","author":"R A Berger","year":"2005","journal-title":"J Bone Joint Surg Am"},{"issue":"24","key":"ref22","doi-asserted-by":"crossref","first-page":"2195","DOI":"10.2106\/JBJS.L.01006","article-title":"Surgeon, implant, and patient variables may explain variability in early revision rates reported for unicompartmental arthroplasty","volume":"95","author":"S Bini","year":"2013","journal-title":"J Bone Joint Surg Am"},{"issue":"05","key":"ref23","doi-asserted-by":"crossref","first-page":"1016","DOI":"10.1016\/j.arth.2015.11.030","article-title":"Why do medial unicompartmental knee arthroplasties fail today?","volume":"31","author":"J P van der List","year":"2016","journal-title":"J Arthroplasty"},{"key":"ref24","doi-asserted-by":"crossref","first-page":"S219","DOI":"10.1016\/j.otsr.2013.03.004","article-title":"Medial unicompartmental knee arthroplasty: does tibial component position influence clinical outcomes and arthroplasty survival?","volume":"99","author":"R Chatellard","year":"2013","journal-title":"Orthop Traumatol Surg Res"},{"issue":"02","key":"ref25","doi-asserted-by":"crossref","first-page":"346","DOI":"10.1016\/j.joca.2012.10.014","article-title":"Chronic in vivo load alteration induces degenerative changes in the rat tibiofemoral joint","volume":"21","author":"M L Roemhildt","year":"2013","journal-title":"Osteoarthritis Cartilage"},{"issue":"06","key":"ref26","doi-asserted-by":"crossref","first-page":"621","DOI":"10.1055\/s-0039-1698769","article-title":"Comparison of patient demographics and utilization trends of robotic-assisted and non-robotic-assisted unicompartmental knee arthroplasty","volume":"34","author":"R M Vakharia","year":"2021","journal-title":"J Knee Surg"},{"issue":"02","key":"ref27","doi-asserted-by":"crossref","first-page":"188","DOI":"10.1302\/0301-620X.88B2.17220","article-title":"Hands-on robotic unicompartmental knee replacement: a prospective, randomised controlled study of the Acrobot system","volume":"88","author":"J Cobb","year":"2006","journal-title":"J Bone Joint Surg Br"},{"issue":"06","key":"ref28","doi-asserted-by":"crossref","first-page":"228","DOI":"10.1302\/2046-3758.86.BJR-2019-0037","article-title":"Robotic unicompartmental knee arthroplasty: current challenges and future perspectives","volume":"8","author":"B Kayani","year":"2019","journal-title":"Bone Joint Res"},{"key":"ref29","first-page":"275","article-title":"Robotic-assisted versus manual unicompartmental knee arthroplasty: a systematic review","volume":"37","author":"C Iturriaga","year":"2020","journal-title":"Surg Technol Int"},{"issue":"05","key":"ref30","doi-asserted-by":"crossref","first-page":"926","DOI":"10.1016\/j.arth.2019.01.018","article-title":"Revision analysis of robotic arm-assisted and manual unicompartmental knee arthroplasty","volume":"34","author":"C L Cool","year":"2019","journal-title":"J Arthroplasty"},{"key":"ref31","doi-asserted-by":"crossref","first-page":"S109","DOI":"10.1016\/j.arth.2018.02.050","article-title":"Robotic-arm-assisted vs conventional unicompartmental knee arthroplasty. The 2-year clinical outcomes of a randomized controlled trial","volume":"33","author":"A Gilmour","year":"2018","journal-title":"J Arthroplasty"},{"issue":"12","key":"ref32","doi-asserted-by":"crossref","first-page":"1765","DOI":"10.1007\/s00402-018-3042-6","article-title":"Faster return to sport after robotic-assisted lateral unicompartmental knee arthroplasty: a comparative study","volume":"138","author":"R Canetti","year":"2018","journal-title":"Arch Orthop Trauma Surg"},{"issue":"08","key":"ref33","doi-asserted-by":"crossref","first-page":"1865","DOI":"10.1007\/s00264-018-4175-5","article-title":"Robotic-assisted versus standard unicompartmental knee arthroplasty-evaluation of manuscript conflict of interests, funding, scientific quality and bibliometrics","volume":"43","author":"L Cavinatto","year":"2019","journal-title":"Int Orthop"}],"container-title":["The Journal of Knee Surgery"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/www.thieme-connect.de\/products\/ejournals\/pdf\/10.1055\/s-0042-1757597.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,12,20]],"date-time":"2022-12-20T18:49:19Z","timestamp":1671562159000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.thieme-connect.de\/DOI\/DOI?10.1055\/s-0042-1757597"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,12]]},"references-count":33,"journal-issue":{"issue":"14","published-online":{"date-parts":[[2022,12,20]]},"published-print":{"date-parts":[[2022,12]]}},"URL":"https:\/\/doi.org\/10.1055\/s-0042-1757597","archive":["Portico","CLOCKSS"],"relation":{},"ISSN":["1538-8506","1938-2480"],"issn-type":[{"value":"1538-8506","type":"print"},{"value":"1938-2480","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,12]]}}}