Unicompartmental Knee Arthroplasty with the Oxford Prosthesis in Patients with Medial Compartment Arthritis

Emerson, Roger H.; Higgins, Linda L.

doi:10.2106/jbjs.f.00739

Cited by 164 publications

(96 citation statements)

References 8 publications

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“…Discrepancies have been observed between the survivorship reported in the United Kingdom by the Oxford Group and the survivorship reported in North American patients by independent teams [12,26,39,40], possibly related to the potential differences between the patients in the United Kingdom and in North America [7]. The survivorship reported in the Swedish and the Finnish Joint registry failed to demonstrate any difference between fixed-and mobile-bearing UKA [22-24, 34, 35].…”

Section: Discussionmentioning

confidence: 99%

No Long-term Difference Between Fixed and Mobile Medial Unicompartmental Arthroplasty

Parratte

Pauly

Aubaniac

et al. 2012

Clinical Orthopaedics &Amp; Related Research

109

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Background Early studies in the literature reported relatively high early minor reintervention rate for the mobilebearing unilateral knee arthroplasty (UKA) compared with short-and midterm survivorship after fixed-or mobilebearing UKA. However, whether the long-term function and survivorship are similar is unclear. Questions/purposes We therefore asked whether (1) mobile-or fixed-bearing UKAs have comparable function (as measured by the Knee Society scores); (2) mobile-and fixed-bearing UKA have comparable Knee Society radiographic scores; and (3) the long-term survivorship is comparable. Methods We retrospectively reviewed 75 patients (79 knees) with a fixed-bearing UKA and 72 patients (77 knees) with a mobile-bearing UKA operated on between 1989 and 1992. Mean age of the patients was 63 years; gender and body mass index (26 kg/m 2 ) were comparable in the two groups. We obtained Knee Society function and radiographic scores and determined survival. The minimum followup was 15 years (mean, 17.2 ± 4.8 years; range, 15-21.2 years).

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Section: Discussionmentioning

confidence: 99%

No Long-term Difference Between Fixed and Mobile Medial Unicompartmental Arthroplasty

Parratte

Pauly

Aubaniac

et al. 2012

Clinical Orthopaedics &Amp; Related Research

109

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“…Several retrospective studies suggest the survivorship of UKA, performed for certain indications approaches that of TKA [14,19,34,36]. There are purported advantages of a UKA over a TKA [16,30,39].…”

Section: Discussionmentioning

confidence: 99%

“…Patients who have UKAs generally have shorter hospital stays [7,30,39], and the procedure appears cost-effective when measured in units of quality-adjusted years [38,39]. Some studies of the survivorship of prostheses used in UKA, regardless of type, have reported poor survivorship rates, when compared with prostheses used in TKA [17,23,25], whereas others report 10-and 15-year survivorship rates of 85% to 95% for UKA comparable to those for TKA [14,34,36]. One report suggests the higher reported survival of UKA in some studies relates to patient selection, improved surgical technique, and better prosthetic design [34].…”

Section: Introductionmentioning

confidence: 99%

The Repicci II® Unicondylar Knee Arthroplasty: 9-year Survivorship and Function

O’Donnell

Neil

2010

Clinical Orthopaedics &Amp; Related Research

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Background Unicompartmental knee arthroplasty (UKA) is a recognized procedure for treatment of medial compartment osteoarthritis. UKA using minimally invasive surgery (MIS) has the theoretical advantage of less bone resection and quicker rehabilitation. Whether the function of patients with UKA compares with that of patients with conventional TKA is unclear. Questions/purposes We determined (1) the length of stay and complications associated with a short-stay MIS protocol; (2) whether MIS techniques allow for accurate positioning of the implant and alignment of the limb; (3) the change in functional scores; (4) the revision rate, reasons for revision, and survival of this implant. Patients and Methods We prospectively followed 100 patients who had 114 UKAs. All completed an International Knee Society (IKS) score preoperatively, at 1 year, and at last followup. We determined survivorship. Minimum followup was 5.2 years (mean, 7.4 years; range, 5.2-9 years). Results Mean length of stay was 1.2 days, with 41% discharged the same day. The perioperative complication rate was 6%. The mean IKS score improved from 77 to 93 and was 86 at last followup. The mean hip-knee-ankle axis changed from 6°varus to 1.7°varus. Twenty-two patients underwent a revision procedure at a mean 6.2 years after the index procedure. Survivorship of the prosthesis was 78% at 9 years. Conclusions The short-stay protocol was not associated with a high perioperative complication rate. This technique is associated with improvement in function and restoration of limb alignment, allowing accurate positioning of the implant. Compared with other reports of survival of UKA, this implant had a lower survivorship and increased revision rate.

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“…Estudo multicêntrico com 294 próteses de Marmor relatou 91,4% de sobrevida de 10 anos (25) . Estudos recentes, sobretudo a partir de 1996, destacam a importância da técnica cirúrgica apurada e, principalmente, da escolha correta dos pacientes, o que, junto com a melhora da biomecâ-nica dos implantes, são fatores determinantes de melhores resultados e do "renascimento" da UNI (11)(12)(13)(14) .…”

Section: Discussionunclassified

“…Revisão da literatura mais recente demonstra que atualmente a sobrevida da UNI em 10 anos é de 90-93%, o que se assemelha à da artroplastia total do joelho (11)(12)(13)(14) . Essa evolução nos resultados tem sido atribuída à melhor seleção dos pacientes, técnica cirúrgica mais apurada e aperfeiçoa-mento no desenho dos implantes (15) .…”

Section: Introductionunclassified

Tratamento da artrose unicompartimental medial do joelho com artroplastia unicompartimental tipo Repicci II: relato preliminar de 42 casos

Vaz¹,

Guarniero²,

Santana³

et al. 2008

Rev. bras. ortop.

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Unicompartmental Knee Arthroplasty with the Oxford Prosthesis in Patients with Medial Compartment Arthritis

Cited by 164 publications

References 8 publications

No Long-term Difference Between Fixed and Mobile Medial Unicompartmental Arthroplasty

No Long-term Difference Between Fixed and Mobile Medial Unicompartmental Arthroplasty

The Repicci II® Unicondylar Knee Arthroplasty: 9-year Survivorship and Function

Tratamento da artrose unicompartimental medial do joelho com artroplastia unicompartimental tipo Repicci II: relato preliminar de 42 casos

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