{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T21:14:09Z","timestamp":1777929249930,"version":"3.51.4"},"reference-count":29,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[2022,1,1]],"date-time":"2022-01-01T00:00:00Z","timestamp":1640995200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["J Orthop Surg (Hong Kong)"],"published-print":{"date-parts":[[2022,1]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Compared to total knee arthroplasty (TKA), patellofemoral arthroplasty (PFA) is a far less commonly performed operation. However, in carefully selected cohorts, PFA continues to be an appropriate treatment option for end-stage isolated patellofemoral joint osteoarthritis. In the later situation whereby a PFA is considered for conversion to a TKA \u2013 often due to disease progression \u2013 uncertainty remains regarding optimal management of the in situ patellar button. This review of the contemporary literature aimed to provide a summary of the current evidence to support surgeon decision-making, by evaluating the compatibility, efficacy, and survivorship of retained versus revised patellar buttons in PFA-to-TKA conversion. Specific focus was paid to implant design and technical considerations during revision, plus post-operative patient-reported outcomes and modes of secondary patellar component failure.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A review of the Embase, Cochrane and PubMed databases was performed following PRISMA search principles.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>This investigation highlights that the fate of patellar buttons in PFA-to-TKA conversion has previously been poorly studied, with scant publication data available. Most reports have been of singular cases or small cohort series. Larger formal RCTs and level 1 evidence are lacking.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The findings herein suggest that surgeons can confidently retain well-fixed, undamaged, dome-shaped all-polyethylene patellar buttons in the conversion of a PFA to TKA with the expectation of acceptable mid-term performance and survivorship, as long as congruent tracking with the new tibiofemoral components is achieved. This result is likely translatable to the majority of contemporary, all-polyethylene, dome-shaped patellar buttons, even with manufacturer mismatch.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/10225536221084147","type":"journal-article","created":{"date-parts":[[2022,3,13]],"date-time":"2022-03-13T03:19:05Z","timestamp":1647141545000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":2,"title":["Patellar button compatibility in the conversion of Patellofemoral Arthroplasty to a Total Knee Arthroplasty: A review of the contemporary literature"],"prefix":"10.1177","volume":"30","author":[{"given":"Laura K","family":"McDonald","sequence":"first","affiliation":[{"name":"Alfred Health, Melbourne, VIC, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9951-1374","authenticated-orcid":false,"given":"Andrew P","family":"Kurmis","sequence":"additional","affiliation":[{"name":"College of Medicine & Public Health, Flinders University, Bedford Park, SA, Australia."},{"name":"Discipline of Medical Specialties, University of Adelaide, Adelaide, SA, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2022,3,12]]},"reference":[{"key":"bibr1-10225536221084147","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports-2017-097515"},{"key":"bibr2-10225536221084147","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.L.00539"},{"key":"bibr3-10225536221084147","doi-asserted-by":"publisher","DOI":"10.1097\/CORR.0000000000000527"},{"key":"bibr4-10225536221084147","unstructured":"NJR. 16th annual report national joint registry for England, wales, northern Ireland and the isle of man; 2019: 115."},{"key":"bibr5-10225536221084147","unstructured":"American Joint Replacement Registry (AJRR): 2019 annual report Rosemont, IL American academy of orthopaedic surgeons (AAOS) 2019: 56."},{"key":"bibr6-10225536221084147","first-page":"1","author":"Registry AOANJR","year":"2019","journal-title":"Knee Shoulder Arthroplasty: 2019 Annu Rep AOA"},{"key":"bibr7-10225536221084147","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-200611000-00003"},{"key":"bibr8-10225536221084147","doi-asserted-by":"publisher","DOI":"10.1080\/17453670902805031"},{"key":"bibr9-10225536221084147","doi-asserted-by":"publisher","DOI":"10.1007\/s11999-014-3756-x"},{"key":"bibr10-10225536221084147","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-011-1842-0"},{"issue":"4","key":"bibr11-10225536221084147","first-page":"219","volume":"26","author":"Hutt J","year":"2013","journal-title":"J Knee Surg"},{"key":"bibr12-10225536221084147","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.328.7454.1490"},{"key":"bibr13-10225536221084147","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-200512000-00006"},{"key":"bibr14-10225536221084147","doi-asserted-by":"publisher","DOI":"10.1097\/01.blo.0000171918.24998.d1"},{"key":"bibr15-10225536221084147","doi-asserted-by":"publisher","DOI":"10.1016\/j.knee.2017.06.015"},{"key":"bibr16-10225536221084147","doi-asserted-by":"publisher","DOI":"10.1097\/CORR.0000000000000541"},{"key":"bibr17-10225536221084147","doi-asserted-by":"publisher","DOI":"10.1097\/BCO.0b013e31819baa66"},{"key":"bibr18-10225536221084147","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-200301000-00009"},{"key":"bibr19-10225536221084147","doi-asserted-by":"publisher","DOI":"10.1016\/j.arth.2011.01.016"},{"key":"bibr20-10225536221084147","doi-asserted-by":"publisher","DOI":"10.1016\/j.knee.2008.08.003"},{"key":"bibr21-10225536221084147","doi-asserted-by":"publisher","DOI":"10.1097\/01.blo.0000092982.12414.a0"},{"key":"bibr22-10225536221084147","doi-asserted-by":"publisher","DOI":"10.1016\/j.otsr.2013.06.013"},{"key":"bibr23-10225536221084147","doi-asserted-by":"publisher","DOI":"10.1055\/s-0037-1606618"},{"key":"bibr24-10225536221084147","doi-asserted-by":"publisher","DOI":"10.1016\/j.knee.2015.11.002"},{"key":"bibr25-10225536221084147","doi-asserted-by":"publisher","DOI":"10.1302\/2046-3758.712.BJR-2018-0303"},{"key":"bibr26-10225536221084147","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-198870050-00005"},{"issue":"7","key":"bibr27-10225536221084147","first-page":"303","volume":"39","author":"Chan WH","year":"1998","journal-title":"Singapore Med J"},{"key":"bibr28-10225536221084147","doi-asserted-by":"publisher","DOI":"10.1097\/00003086-200107000-00015"},{"key":"bibr29-10225536221084147","doi-asserted-by":"publisher","DOI":"10.1097\/00003086-198811000-00011"}],"container-title":["Journal of Orthopaedic Surgery"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/10225536221084147","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/10225536221084147","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/10225536221084147","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T23:28:57Z","timestamp":1777678137000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/10225536221084147"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,1]]},"references-count":29,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2022,1]]}},"alternative-id":["10.1177\/10225536221084147"],"URL":"https:\/\/doi.org\/10.1177\/10225536221084147","relation":{},"ISSN":["1022-5536","2309-4990"],"issn-type":[{"value":"1022-5536","type":"print"},{"value":"2309-4990","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,1]]},"article-number":"10225536221084147"}}