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Archives of Orthopaedic and Trauma Surgery

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01-09-2016 | Knee Arthroplasty

Midterm results after unicompartmental knee replacement with all-polyethylene tibial component: a single surgeon experience

Authors: Nael Hawi, Jochen Plutat, Daniel Kendoff, Eduardo M. Suero, Michael B. Cross, Thorsten Gehrke, Mustafa Citak

Published in: Archives of Orthopaedic and Trauma Surgery | Issue 9/2016

Abstract

Purpose

The aim of this study was to determine the survival rate, the causes of failure, and the functional outcomes of an all-polyethylene tibial unicompartmental knee prosthesis.

Methods

One hundred (100) nonselected, consecutive patients indicated for unicompartmental knee replacement for isolated medial knee compartment osteoarthritis by a single surgeon at a single institution from 2000 to 2004 were included in this study. Data was collected retrospectively at final follow-up from the hospital electronic database, including progress notes, demographic information, Hospital for Special Surgery (HSS) Knee Score, details on the surgical procedure, reoperations/revisions, and mortality. A survival analysis was performed to estimate the probability of survival over time.

Results

The survival probability of the all-polyethylene UKA implant was 95.4 % after a mean follow-up of 8 years, which is comparable to reports from studies using metal-backed modular designs for UKA. The causes of failure were progression of arthritis in adjacent compartments (2 %) and loosening of the tibial component (2 %). The mean preoperative HSS knee score improved from 36.6 ± 14.3 to 76.6 ± 21.6 at latest follow-up (p < 0.0001).

Conclusions

In summary, an all-polyethylene tibial component has equivalent survivorship to modular designs. Implant selection does not seem to have great influence on the outcome, but rather the success depends on appropriate indications and surgical technique.

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Title: Midterm results after unicompartmental knee replacement with all-polyethylene tibial component: a single surgeon experience
Authors: Nael Hawi
Jochen Plutat
Daniel Kendoff
Eduardo M. Suero
Michael B. Cross
Thorsten Gehrke
Mustafa Citak
Publication date: 01-09-2016
Publisher: Springer Berlin Heidelberg
Published in: Archives of Orthopaedic and Trauma Surgery / Issue 9/2016
Print ISSN: 0936-8051
Electronic ISSN: 1434-3916
DOI: https://doi.org/10.1007/s00402-016-2515-8

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Midterm results after unicompartmental knee replacement with all-polyethylene tibial component: a single surgeon experience

Abstract

Purpose

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusions

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