{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T20:07:02Z","timestamp":1774296422482,"version":"3.50.1"},"reference-count":32,"publisher":"Elsevier BV","issue":"4","license":[{"start":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T00:00:00Z","timestamp":1775001600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T00:00:00Z","timestamp":1775001600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T00:00:00Z","timestamp":1775001600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-017"},{"start":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T00:00:00Z","timestamp":1775001600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T00:00:00Z","timestamp":1775001600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-012"},{"start":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T00:00:00Z","timestamp":1775001600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T00:00:00Z","timestamp":1775001600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-004"}],"content-domain":{"domain":["arthroplastyjournal.org","clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["The Journal of Arthroplasty"],"published-print":{"date-parts":[[2026,4]]},"DOI":"10.1016\/j.arth.2025.08.008","type":"journal-article","created":{"date-parts":[[2025,8,11]],"date-time":"2025-08-11T15:18:24Z","timestamp":1754925504000},"page":"1048-1056","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":0,"title":["Medial Unicompartmental Knee Arthroplasty for Osteonecrosis: A Cohort Study Comparing Cemented and Cementless Fixation"],"prefix":"10.1016","volume":"41","author":[{"given":"Conradin","family":"Schweizer","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tatjana","family":"Krug","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joachim","family":"Herre","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter R.","family":"Aldinger","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christian","family":"Merle","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0218-1426","authenticated-orcid":false,"given":"Wenzel","family":"Waldstein","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/j.arth.2025.08.008_bib1","doi-asserted-by":"crossref","first-page":"233","DOI":"10.1007\/s00167-002-0285-z","article-title":"Prevalence of spontaneous osteonecrosis of the medial femoral condyle in elderly patients","volume":"10","author":"Pape","year":"2002","journal-title":"Knee Surg Sports Traumatol Arthrosc"},{"key":"10.1016\/j.arth.2025.08.008_bib2","doi-asserted-by":"crossref","first-page":"3254","DOI":"10.1007\/s00167-020-06132-z","article-title":"Total and unicondylar knee arthroplasty are equivalent treatment options in end-stage spontaneous osteonecrosis of the knee, and the size of the lesion has no influence on the results","volume":"29","author":"Flury","year":"2021","journal-title":"Knee Surg Sports Traumatol Arthrosc"},{"key":"10.1016\/j.arth.2025.08.008_bib3","doi-asserted-by":"crossref","first-page":"482","DOI":"10.5435\/00124635-201108000-00004","article-title":"Osteonecrosis of the knee and related conditions","volume":"19","author":"Mont","year":"2011","journal-title":"J Am Acad Orthop Surg"},{"key":"10.1016\/j.arth.2025.08.008_bib4","doi-asserted-by":"crossref","first-page":"176","DOI":"10.1016\/j.arth.2013.07.036","article-title":"Unicompartmental knee arthroplasty enables near normal gait at higher speeds, unlike total knee arthroplasty","volume":"28","author":"Wiik","year":"2013","journal-title":"J Arthroplasty"},{"key":"10.1016\/j.arth.2025.08.008_bib5","doi-asserted-by":"crossref","first-page":"1811","DOI":"10.1007\/s00167-017-4817-y","article-title":"Larger range of motion and increased return to activity, but higher revision rates following unicompartmental versus total knee arthroplasty in patients under 65: a systematic review","volume":"26","author":"Kleeblad","year":"2018","journal-title":"Knee Surg Sports Traumatol Arthrosc"},{"key":"10.1016\/j.arth.2025.08.008_bib6","doi-asserted-by":"crossref","first-page":"326","DOI":"10.1186\/s12891-021-04185-w","article-title":"Better short-term function after unicompartmental compared to total knee arthroplasty","volume":"22","author":"Tille","year":"2021","journal-title":"BMC Musculoskelet Disord"},{"key":"10.1016\/j.arth.2025.08.008_bib7","doi-asserted-by":"crossref","first-page":"590","DOI":"10.1016\/j.arth.2003.12.082","article-title":"Sagittal plane kinematics of a mobile-bearing unicompartmental knee arthroplasty at 10 years: a comparative in vivo fluoroscopic analysis","volume":"19","author":"Price","year":"2004","journal-title":"J Arthroplasty"},{"key":"10.1016\/j.arth.2025.08.008_bib8","doi-asserted-by":"crossref","first-page":"1437","DOI":"10.1016\/S0140-6736(14)60419-0","article-title":"Adverse outcomes after total and unicompartmental knee replacement in 101,330 matched patients: a study of data from the national joint registry for England and Wales","volume":"384","author":"Liddle","year":"2014","journal-title":"Lancet"},{"key":"10.1016\/j.arth.2025.08.008_bib9","doi-asserted-by":"crossref","first-page":"3229","DOI":"10.1007\/s00167-020-06091-5","article-title":"Cementless unicompartmental knee replacement achieves better ten-year clinical outcomes than cemented: a systematic review","volume":"29","author":"Mohammad","year":"2021","journal-title":"Knee Surg Sports Traumatol Arthrosc"},{"key":"10.1016\/j.arth.2025.08.008_bib10","doi-asserted-by":"crossref","first-page":"255","DOI":"10.1007\/s12306-023-00773-2","article-title":"Cementless versus cemented unicompartmental knee arthroplasty: a systematic review of comparative studies","volume":"107","author":"Mancino","year":"2023","journal-title":"Musculoskelet Surg"},{"key":"10.1016\/j.arth.2025.08.008_bib11","doi-asserted-by":"crossref","first-page":"1077","DOI":"10.2106\/JBJS.18.00913","article-title":"Medial unicompartmental knee arthroplasty for the treatment of focal femoral osteonecrosis","volume":"101","author":"Greco","year":"2019","journal-title":"J Bone Joint Surg Am"},{"key":"10.1016\/j.arth.2025.08.008_bib12","doi-asserted-by":"crossref","first-page":"1442","DOI":"10.1007\/s11999-012-2246-2","article-title":"Is unicompartmental arthroplasty an acceptable option for spontaneous osteonecrosis of the knee?","volume":"470","author":"Bruni","year":"2012","journal-title":"Clin Orthop Relat Res"},{"key":"10.1016\/j.arth.2025.08.008_bib13","doi-asserted-by":"crossref","first-page":"1111","DOI":"10.1016\/j.knee.2019.06.007","article-title":"Medium-term clinical results of unicompartmental knee arthroplasty for the treatment for spontaneous osteonecrosis of the knee with four to 15 years of follow-up","volume":"26","author":"Fukuoka","year":"2019","journal-title":"Knee"},{"key":"10.1016\/j.arth.2025.08.008_bib14","doi-asserted-by":"crossref","first-page":"119","DOI":"10.1007\/s00590-018-2296-6","article-title":"Reliable patient-reported outcome measure and survivorship of UKA for primary spontaneous osteonecrosis","volume":"29","author":"Kaneko","year":"2019","journal-title":"Eur J Orthop Surg Traumatol"},{"key":"10.1016\/j.arth.2025.08.008_bib15","doi-asserted-by":"crossref","first-page":"3175","DOI":"10.1007\/s00167-014-3444-0","article-title":"High rate of implant loosening for uncemented resurfacing-type medial unicompartmental knee arthroplasty","volume":"24","author":"Bruni","year":"2016","journal-title":"Knee Surg Sports Traumatol Arthrosc"},{"key":"10.1016\/j.arth.2025.08.008_bib16","doi-asserted-by":"crossref","first-page":"193","DOI":"10.1016\/j.ocl.2008.10.010","article-title":"Osteonecrosis of the knee: a review of three disorders","volume":"40","author":"Zywiel","year":"2009","journal-title":"Orthop Clin North Am"},{"key":"10.1016\/j.arth.2025.08.008_bib17","doi-asserted-by":"crossref","first-page":"47","DOI":"10.2106\/00004623-198264010-00008","article-title":"The treatment of spontaneous osteonecrosis of the knee by high tibial osteotomy with and without bone-grafting or drilling of the lesion","volume":"64","author":"Koshino","year":"1982","journal-title":"J Bone Joint Surg Am"},{"key":"10.1016\/j.arth.2025.08.008_bib18","doi-asserted-by":"crossref","first-page":"3","DOI":"10.1302\/0301-620X.98B10.BJJ-2016-0432.R1","article-title":"Radiological decision aid to determine suitability for medial unicompartmental knee arthroplasty: development and preliminary validation","volume":"98-B","author":"Hamilton","year":"2016","journal-title":"Bone Joint J"},{"key":"10.1016\/j.arth.2025.08.008_bib19","doi-asserted-by":"crossref","first-page":"622","DOI":"10.1302\/0301-620X.93B5.26214","article-title":"Unnecessary contraindications for mobile-bearing unicompartmental knee replacement","volume":"93","author":"Pandit","year":"2011","journal-title":"J Bone Joint Surg Br"},{"key":"10.1016\/j.arth.2025.08.008_bib20","doi-asserted-by":"crossref","first-page":"1010","DOI":"10.1302\/0301-620X.89B8.19424","article-title":"The use of the Oxford hip and knee scores","volume":"89","author":"Murray","year":"2007","journal-title":"J Bone Joint Surg Br"},{"key":"10.1016\/j.arth.2025.08.008_bib21","doi-asserted-by":"crossref","first-page":"890","DOI":"10.1016\/S0883-5403(98)90195-4","article-title":"Assessing activity in joint replacement patients","volume":"13","author":"Zahiri","year":"1998","journal-title":"J Arthroplasty"},{"key":"10.1016\/j.arth.2025.08.008_bib22","doi-asserted-by":"crossref","DOI":"10.1016\/j.jisako.2024.100334","article-title":"Unicompartmental knee arthroplasty: what is the optimal alignment correction to achieve success? The role of kinematic alignment","volume":"9","author":"McEwen","year":"2024","journal-title":"J ISAKOS"},{"key":"10.1016\/j.arth.2025.08.008_bib23","doi-asserted-by":"crossref","first-page":"1686","DOI":"10.1016\/S0140-6736(02)08594-X","article-title":"Survival plots of time-to-event outcomes in clinical trials: good practice and pitfalls","volume":"359","author":"Pocock","year":"2002","journal-title":"Lancet"},{"key":"10.1016\/j.arth.2025.08.008_bib24","doi-asserted-by":"crossref","first-page":"S125","DOI":"10.1016\/j.arth.2023.01.038","article-title":"Surgical trends for managing knee osteonecrosis: a 2010 to 2020 United States nationwide study","volume":"38","author":"Ng","year":"2023","journal-title":"J Arthroplasty"},{"key":"10.1016\/j.arth.2025.08.008_bib25","doi-asserted-by":"crossref","first-page":"450","DOI":"10.1302\/0301-620X.100B4.BJJ-2017-1041.R2","article-title":"Reliable outcomes and survivorship of unicompartmental knee arthroplasty for isolated compartment osteonecrosis","volume":"100-B","author":"Chalmers","year":"2018","journal-title":"Bone Joint J"},{"key":"10.1016\/j.arth.2025.08.008_bib26","doi-asserted-by":"crossref","first-page":"48","DOI":"10.1302\/2633-1462.21.BJO-2020-0172.R1","article-title":"Cementless knee arthroplasty: a review of recent performance","volume":"2","author":"Asokan","year":"2021","journal-title":"Bone Jt Open"},{"key":"10.1016\/j.arth.2025.08.008_bib27","doi-asserted-by":"crossref","first-page":"4391","DOI":"10.1007\/s00402-024-05539-4","article-title":"Cemented versus cementless Oxford unicompartmental knee arthroplasty for the treatment of medial knee osteoarthritis: an updated systematic review and meta-analysis","volume":"144","author":"Liu","year":"2024","journal-title":"Arch Orthop Trauma Surg"},{"key":"10.1016\/j.arth.2025.08.008_bib28","doi-asserted-by":"crossref","first-page":"76","DOI":"10.1080\/17453674.2019.1680924","article-title":"Comparison of the 10-year outcomes of cemented and cementless unicompartmental knee replacements: data from the national joint registry for England, Wales, northern Ireland and the Isle of Man","volume":"91","author":"Mohammad","year":"2020","journal-title":"Acta Orthop"},{"key":"10.1016\/j.arth.2025.08.008_bib29","doi-asserted-by":"crossref","first-page":"1220","DOI":"10.1007\/s00167-021-06553-4","article-title":"Short distance from the keel to the posterior tibial cortex is associated with fracture after cementless Oxford UKA in Asian patients","volume":"30","author":"Kamenaga","year":"2022","journal-title":"Knee Surg Sports Traumatol Arthrosc"},{"key":"10.1016\/j.arth.2025.08.008_bib30","doi-asserted-by":"crossref","first-page":"1118","DOI":"10.1302\/0301-620X.104B10.BJJ-2021-1508.R2","article-title":"Varus placement of the tibial component of Oxford unicompartmental knee arthroplasty decreases the risk of postoperative tibial fracture","volume":"104-B","author":"Suda","year":"2022","journal-title":"Bone Joint J"},{"key":"10.1016\/j.arth.2025.08.008_bib31","doi-asserted-by":"crossref","first-page":"401","DOI":"10.1302\/2633-1462.55.BJO-2024-0007.R1","article-title":"Comparison of the early postoperative outcomes of cementless and cemented medial unicompartmental knee arthroplasty","volume":"5","author":"Bayoumi","year":"2024","journal-title":"Bone Jt Open"},{"key":"10.1016\/j.arth.2025.08.008_bib32","doi-asserted-by":"crossref","first-page":"1479","DOI":"10.1007\/s00167-019-05544-w","article-title":"Ten-year clinical and radiographic results of 1000 cementless Oxford unicompartmental knee replacements","volume":"28","author":"Mohammad","year":"2020","journal-title":"Knee Surg Sports Traumatol Arthrosc"}],"container-title":["The Journal of Arthroplasty"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0883540325010137?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0883540325010137?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T19:33:06Z","timestamp":1774294386000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0883540325010137"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,4]]},"references-count":32,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2026,4]]}},"alternative-id":["S0883540325010137"],"URL":"https:\/\/doi.org\/10.1016\/j.arth.2025.08.008","relation":{},"ISSN":["0883-5403"],"issn-type":[{"value":"0883-5403","type":"print"}],"subject":[],"published":{"date-parts":[[2026,4]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Medial Unicompartmental Knee Arthroplasty for Osteonecrosis: A Cohort Study Comparing Cemented and Cementless Fixation","name":"articletitle","label":"Article Title"},{"value":"The Journal of Arthroplasty","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.arth.2025.08.008","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2025 Elsevier Inc. All rights are reserved, including those for text and data mining, AI training, and similar technologies.","name":"copyright","label":"Copyright"}]}}