Format

Send to

Choose Destination
Bone Joint J. 2015 Oct;97-B(10):1358-63. doi: 10.1302/0301-620X.97B10.35668.

The five-year radiological results of the uncemented Oxford medial compartment knee arthroplasty.

Author information

1
University of Otago Christchurch, PO Box 4345, Christchurch 8140, New Zealand.

Abstract

This study reports on the first 150 consecutive Oxford cementless unicompartmental knee arthroplasties (UKA) performed in an independent centre (126 patients). All eligible patients had functional scores (Oxford knee score and high activity arthroplasty score) recorded pre-operatively and at two- and five-years of follow-up. Fluoroscopically aligned radiographs were taken at five years and analysed for any evidence of radiolucent lines (RLLs), subsidence or loosening. The mean age of the cohort was 63.6 years (39 to 86) with 81 (53.1%) males. Excellent functional scores were maintained at five years and there were no progressive RLLs demonstrated on radiographs. Two patients underwent revision to a total knee arthroplasty giving a revision rate of 0.23/100 (95% confidence interval 0.03 to 0.84) component years with overall component survivorship of 98.7% at five years. There were a further four patients who underwent further surgery on the same knee, two underwent bearing exchanges for dislocation and two underwent lateral UKAs for disease progression. This was a marked improvement from other UKAs reported in New Zealand Joint Registry data and supports the designing centre's early results.

KEYWORDS:

Oxford uncemented knee; radiolucent lines

PMID:
26430010
DOI:
10.1302/0301-620X.97B10.35668
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Bone and Joint Publishing
Loading ...
Support Center