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However, questions remain concerning long-term survival. The goal of this review article was to present the long-term results of medial and lateral UKA, PFA and combined compartmental arthroplasty for multicompartmental disease. Medium- and long-term studies suggest reasonable outcomes at ten years with survival greater than 95% in UKA performed for medial osteoarthritis or osteonecrosis, and similarly for lateral UKA, particularly when fixed-bearing implants are used. Disappointing long-term outcomes have been observed with the first generation of patellofemoral implants, as well as early Bi-Uni (ie, combined medial and lateral UKA) or Bicompartmental (combined UKA and PFA) implants due to design and fixation issues. Promising short- and med-term results with the newer generations of PFAs and bicompartmental arthroplasties will require long-term confirmation.<\/jats:p><jats:p>Cite this article: Bone Joint J 2015;97-B(10 Suppl A):9\u201315.<\/jats:p>","DOI":"10.1302\/0301-620x.97b10.36426","type":"journal-article","created":{"date-parts":[[2015,10,1]],"date-time":"2015-10-01T14:44:54Z","timestamp":1443710694000},"page":"9-15","update-policy":"https:\/\/doi.org\/10.1302\/crossmark-policy","source":"Crossref","is-referenced-by-count":86,"title":["Long-term results of compartmental arthroplasties of the knee"],"prefix":"10.1302","volume":"97-B","author":[{"given":"S.","family":"Parratte","sequence":"first","affiliation":[{"name":"Aix-Marseille University, IML Hopital Sainte Marguerite, 13008, Marseille, France."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M.","family":"Ollivier","sequence":"additional","affiliation":[{"name":"Aix-Marseille University, 270 Boulevard Sainte Marguerite, BP 29, 13274 Marseille, France."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A.","family":"Lunebourg","sequence":"additional","affiliation":[{"name":"Aix-Marseille University, 270 Boulevard Sainte Marguerite, BP 29, 13274 Marseille, France."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M. 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