Promising short-term clinical results of the cementless Oxford phase III medial unicondylar knee prosthesis

Dorp, Karin B. van; Breugem, Stefan J. M.; Bruijn, Daniël J; Driessen, Marcel J. M.

doi:10.5312/wjo.v7.i4.251

Cited by 4 publications

(3 citation statements)

References 15 publications

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“…These results are consistent with findings in the literature: van Dorp et al described OKS results of 43.3 and AKSS of 94.5, with a mean follow-up of 19.5 months [11]. Blaney et al described a five year follow-up with a mean OKS of 42.0 [10].…”

Section: Discussionsupporting

confidence: 91%

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Cementless Oxford Medial Unicompartmental Knee Replacement—Clinical and Radiological Results of 228 Knees with a Minimum 2-Year Follow-Up

Panzram

Mandery

Reiner

et al. 2020

JCM

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(1) Background: Studies show several advantages of unicompartmental knee replacement (UKR) over total knee replacements (TKR), whereas registry based revision rates of UKR are significantly higher than for TKA. Registry data report lower revision rates for cementless UKR compared to cemented UKR. The aim of this study was to assess clinical and radiological results of cementless Oxford UKR (OUKR) in an independent cohort. (2) Methods: This retrospective cohort study examines a consecutive series of 228 cementless OUKR. Clinical outcome was measured using functional scores (Oxford Knee Score (OKS), American Knee Society Score (AKSS), Hannover Functional Ability Questionnaire for Osteoarthritis (FFbH-OA), range of motion (ROM)), pain and satisfaction. Radiographs were analyzed regarding the incidence of radiolucent lines (RL), implant positioning, and their possible impact on clinical outcome. (3) Results: At a mean follow-up of 37.1 months, the two and three year revision free survival-rates were 97.5% and 96.9%. Reasons for revision surgery were progression of osteoarthritis, inlay dislocation and pain. All clinical outcome scores showed a significant improvement from pre- to postoperative. The incidence of RL around the implant was highest within the first year postoperatively (36%), and decreased (5%) within the second year. Their presence was not correlated with inferior clinical outcome. Implant positioning showed no influence on clinical outcome. (4) Conclusion: Cementless OUKR showed excellent clinical outcome and survival rates, with reliable osteointegration. Neither the incidence of radiolucent lines nor implant positioning were associated with inferior clinical outcome.

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Section: Discussionsupporting

confidence: 91%

“…While a few studies demonstrate excellent clinical outcome for cementless UKR [6,[9][10][11][12], there is a lack of independent studies investigating the clinical impact of radiolucent lines (RL), that occur early and particularly at the tibial bone-implant interface.…”

Section: Introductionmentioning

confidence: 99%

Cementless Oxford Medial Unicompartmental Knee Replacement—Clinical and Radiological Results of 228 Knees with a Minimum 2-Year Follow-Up

Panzram

Mandery

Reiner

et al. 2020

JCM

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“…A modified titanium porous-coated and hydroxyapatite-coated implant enabled the excellent results of cementless Oxford UKA [ 11 , 14 , 15 , 22 , 23 ]. Several published papers reflect the increased interest in these implants [ 11 , 15 , 24 , 25 ].…”

Section: Discussionmentioning

confidence: 99%

Midterm Results of Cementless and Cemented Unicondylar Knee Arthroplasty with Mobile Meniscal Bearing: A Prospective Cohort Study

Stempin¹,

Kaczmarek²,

Stempin³

et al. 2017

TOORTHJ

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Background:Cemented unicompartmental knee arthroplasty (UKA) yields good clinical outcome but common revision reasons are loosening and pain. Cementless UKA may reduce the revision rate.Objective:The current study was designed to assess clinical and radiographic outcome of cemented and cementless UKA, using bone quality as determined by the Bone Hardness Test (BHT) as selection criterion for cementless implantation. Methods:In this prospective comparative cohort study we analyzed 50 cementless and 29 Oxford consecutive UKA cases. Patients with sufficient bone quality were eligible for cementless UKA. Bone quality was assessed with the BHT, which consisted of exercising pressure with the thumb on the bone surface created after resection of the tibia.Results:The average surgical times were 62.5 ± 12.6 and 78 ± 16 minutes in the cementless and the cemented group, respectively (p < 0.01). The average thickness of the polyethylene insert was 4.3 ± 1.2 (range, 3 – 9) and 3.7 ± 0.8 (range, 3 – 6) mm, respectively (p = 0.02). Both types of implants yielded excellent clinical and functional results. At an average follow-up time of seven years, we found non-significant differences between clinical results of cementless versus cemented implants.Conclusion:Shorter surgical time makes cementless implantation more attractive to surgeons when considering UKA options for their patients. The average thickness of the polyethylene insert in cementless group was 0.6 mm thinner than in the cemented group. The BHT is a simple and useful test to assess whether patients are eligible for cementless UKA.

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Cemented versus cementless Oxford unicompartmental knee arthroplasty for the treatment of medial knee osteoarthritis: an updated systematic review and meta-analysis

Liu,

Li,

Wang

et al. 2024

Arch Orthop Trauma Surg

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Promising short-term clinical results of the cementless Oxford phase III medial unicondylar knee prosthesis

Abstract: The cementless Oxford phase III medial UKP shows good short-term clinical results, when used in a specialist clinic by an experienced surgeon.

Cited by 4 publications

References 15 publications

Cementless Oxford Medial Unicompartmental Knee Replacement—Clinical and Radiological Results of 228 Knees with a Minimum 2-Year Follow-Up

Cementless Oxford Medial Unicompartmental Knee Replacement—Clinical and Radiological Results of 228 Knees with a Minimum 2-Year Follow-Up

Midterm Results of Cementless and Cemented Unicondylar Knee Arthroplasty with Mobile Meniscal Bearing: A Prospective Cohort Study

Cemented versus cementless Oxford unicompartmental knee arthroplasty for the treatment of medial knee osteoarthritis: an updated systematic review and meta-analysis

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