Up to 10-Year Follow-Up of the Oxford Medial Partial Knee Arthroplasty — 695 Cases From a Single Institution

Kristensen, Philip Trøst; Holm, Henriette A; Varnum, Claus

doi:10.1016/j.arth.2013.05.010

Cited by 42 publications

(24 citation statements)

References 15 publications

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“…Price et al, 7 Pandit et al, 8 Kort et al, 9 Rajasekhar, Das and Smith, 10 and Kim et al 11 all reported a similar improvement in clinical scores. The improvements in ROM in this study (123.4° of maximum flexion) were comparable with those in other studies (Heller et al: 12 123°, Kort et al: 9 126.1°, Price et al: 7 116°, Kristensen, Holm and Varnum: 13 127.5°).…”

Section: Discussionsupporting

confidence: 91%

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The results of Oxford unicompartmental knee arthroplasty in the United States

Emerson

Alnachoukati

Barrington

et al. 2016

The Bone & Joint Journal

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AimsApproved by the Food and Drug Administration in 2004, the Phase III Oxford Medial Partial Knee is used to treat anteromedial osteoarthritis (AMOA) in patients with an intact anterior cruciate ligament. This unicompartmental knee arthroplasty (UKA) is relatively new in the United States, and therefore long-term American results are lacking.Patients and MethodsThis is a single surgeon, retrospective study based on prospectively collected data, analysing a consecutive series of primary UKAs using the Phase III mobile-bearing Oxford Knee and Phase III instrumentation.Between July 2004 and December 2006, the senior author (RHE) carried out a medial UKA in 173 patients (213 knees) for anteromedial osteoarthritis or avascular necrosis (AVN). A total of 95 patients were men and 78 were women. Their mean age at surgery was 67 years (38 to 89) and mean body mass index 29.87 kg/m2 (17 to 62).The mean follow-up was ten years (4 to 11).ResultsSurvivorship of the Oxford UKA at ten years was 88%, using life table analysis. Implant survivorship at ten years was 95%. The most common cause for revision was the progression of osteoarthritis in the lateral compartment. The mean knee score element of the American Knee Society Score (AKSS) was 50 pre-operatively and increased to 93 post-operatively. The mean AKSS function score was 56 pre-operatively rising to 78 post-operativelyConclusionThis ten-year follow-up study of the Oxford UKA undertaken in the United States shows good survivorship and excellent function in a wide selection of patients with AMOA and AVN.Cite this article: Bone Joint J 2016;98-B(10 Suppl B):34–40.

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Section: Discussionsupporting

confidence: 91%

“…This is consistent with other reports. 9 , 13 , 15 , 16 It highlights the importance of selecting patients with a normal lateral compartment at the time of primary surgery. Often, when lateral compartment osteoarthritis supervenes, the medial implant is well-fixed and well-functioning.…”

Section: Discussionmentioning

confidence: 99%

The results of Oxford unicompartmental knee arthroplasty in the United States

Emerson

Alnachoukati

Barrington

et al. 2016

The Bone & Joint Journal

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“…Unicompartmental knee arthroplasty (UKA) using the Oxford Phase III medial mobile-bearing knee has enjoyed excellent results [1][2][3][4][5][6][7][8][9][10][11][12][13]. Price and Svard reported 91.0% all cause cumulative survival rate at 20 years in a series of 543 patients (682 knees) [12].…”

Section: Discussionmentioning

confidence: 99%

“…Multiple publications cite excellent results in terms of survivorship and functional outcomes with a medial-mobile bearing unicompartmental partial knee arthroplasty design utilizing the Phase III minimally invasive instrumentation platform (Zimmer Biomet, Warsaw, IN) (Figure 1A-D) [1][2][3][4][5][6][7][8][9][10][11][12][13]. The most recent modifications to the mobile-bearing Oxford Partial Knee Arthroplasty (Zimmer Biomet) were intended to enhance the stability and mechanics of the femoral component and improve the process of implantation and reproducibility of implant positioning.…”

Section: Introductionmentioning

confidence: 99%

New Instrumentation Reduces Operative Time in Medial Unicompartmental Knee Arthroplasty Using the Oxford Mobile Bearing Design

Berend¹,

Hurst²,

Morris³

et al. 2015

ReconRev

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Redesigned instrumentation has become available for implantation of the Oxford Mobile Bearing Medial unicompartmental knee arthroplasty. To assess the benefit of these changes, we compared operative time of 200 Phase III and 176 Microplasty UKA done 2008-2011. An average time savings of 8.6 minutes was seen with the Microplasty design. Additionally, the standard deviation in operative times, minimum and maximum operatives were lower in knees in which Microplasty instrumentation was utilized. A 15% savings in operative time was seen with the new Microplasty instrumentation.

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“…An additional 83 studies were excluded after reading their full texts showed that they did not contain usable information or included irrelevant data. Finally, 25 studies [3, 4, 6, 9, 10, 13, 15, 19, 22-24, 28-32, 36, 38, 39, 43, 44, 46, 51, 52, 54] were included in this systematic review.…”

Section: Methodsmentioning

confidence: 99%