Pre-operative clinical and radiological assessment of the patellofemoral joint in unicompartmental knee replacement and its influence on outcome.

Anterior knee pain and/or radiological evidence of degeneration of the patellofemoral joint are considered to be contraindications to unicompartmental knee replacement. The aim of this study was to determine whether this is the case. Between January 2000 and September 2003, in 100 knees (91 patients...

Full description

Bibliographic Details
Main Authors: Beard, D, Pandit, H, Ostlere, S, Jenkins, C, Dodd, C, Murray, D
Format: Journal article
Language:English
Published: 2007
_version_ 1826261640605073408
author Beard, D
Pandit, H
Ostlere, S
Jenkins, C
Dodd, C
Murray, D
author_facet Beard, D
Pandit, H
Ostlere, S
Jenkins, C
Dodd, C
Murray, D
author_sort Beard, D
collection OXFORD
description Anterior knee pain and/or radiological evidence of degeneration of the patellofemoral joint are considered to be contraindications to unicompartmental knee replacement. The aim of this study was to determine whether this is the case. Between January 2000 and September 2003, in 100 knees (91 patients) in which Oxford unicompartmental knee replacements were undertaken for anteromedial osteoarthritis, pre-operative anterior knee pain and the radiological status of the patellofemoral joint were defined using the Altman and Ahlback systems. Outcome was evaluated at two years with the Oxford knee score and the American Knee Society score. Pre-operatively 54 knees (54%) had anterior knee pain. The clinical outcome was independent of the presence or absence of pre-operative anterior knee pain. Degenerative changes of the patellofemoral joint were seen in 54 patients (54%) on the skyline radiographs, including ten knees (10%) with joint space obliteration. Patients with medial patellofemoral degeneration had a similar outcome to those without. For some outcome measures patients with lateral patellofemoral degeneration had a worse score than those without, but these patients still had a good outcome, with a mean Oxford knee score of 37.6 (SD 9.5). These results show that neither anterior knee pain nor radiologically-demonstrated medial patellofemoral joint degeneration should be considered a contraindication to Oxford unicompartmental knee replacement. With lateral patellofemoral degeneration the situation is less well defined and caution should be observed.
first_indexed 2024-03-06T19:24:33Z
format Journal article
id oxford-uuid:1b42ae9e-659d-4f29-bcc0-ed06f36e0a3e
institution University of Oxford
language English
last_indexed 2024-03-06T19:24:33Z
publishDate 2007
record_format dspace
spelling oxford-uuid:1b42ae9e-659d-4f29-bcc0-ed06f36e0a3e2022-03-26T10:59:25ZPre-operative clinical and radiological assessment of the patellofemoral joint in unicompartmental knee replacement and its influence on outcome.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:1b42ae9e-659d-4f29-bcc0-ed06f36e0a3eEnglishSymplectic Elements at Oxford2007Beard, DPandit, HOstlere, SJenkins, CDodd, CMurray, DAnterior knee pain and/or radiological evidence of degeneration of the patellofemoral joint are considered to be contraindications to unicompartmental knee replacement. The aim of this study was to determine whether this is the case. Between January 2000 and September 2003, in 100 knees (91 patients) in which Oxford unicompartmental knee replacements were undertaken for anteromedial osteoarthritis, pre-operative anterior knee pain and the radiological status of the patellofemoral joint were defined using the Altman and Ahlback systems. Outcome was evaluated at two years with the Oxford knee score and the American Knee Society score. Pre-operatively 54 knees (54%) had anterior knee pain. The clinical outcome was independent of the presence or absence of pre-operative anterior knee pain. Degenerative changes of the patellofemoral joint were seen in 54 patients (54%) on the skyline radiographs, including ten knees (10%) with joint space obliteration. Patients with medial patellofemoral degeneration had a similar outcome to those without. For some outcome measures patients with lateral patellofemoral degeneration had a worse score than those without, but these patients still had a good outcome, with a mean Oxford knee score of 37.6 (SD 9.5). These results show that neither anterior knee pain nor radiologically-demonstrated medial patellofemoral joint degeneration should be considered a contraindication to Oxford unicompartmental knee replacement. With lateral patellofemoral degeneration the situation is less well defined and caution should be observed.
spellingShingle Beard, D
Pandit, H
Ostlere, S
Jenkins, C
Dodd, C
Murray, D
Pre-operative clinical and radiological assessment of the patellofemoral joint in unicompartmental knee replacement and its influence on outcome.
title Pre-operative clinical and radiological assessment of the patellofemoral joint in unicompartmental knee replacement and its influence on outcome.
title_full Pre-operative clinical and radiological assessment of the patellofemoral joint in unicompartmental knee replacement and its influence on outcome.
title_fullStr Pre-operative clinical and radiological assessment of the patellofemoral joint in unicompartmental knee replacement and its influence on outcome.
title_full_unstemmed Pre-operative clinical and radiological assessment of the patellofemoral joint in unicompartmental knee replacement and its influence on outcome.
title_short Pre-operative clinical and radiological assessment of the patellofemoral joint in unicompartmental knee replacement and its influence on outcome.
title_sort pre operative clinical and radiological assessment of the patellofemoral joint in unicompartmental knee replacement and its influence on outcome
work_keys_str_mv AT beardd preoperativeclinicalandradiologicalassessmentofthepatellofemoraljointinunicompartmentalkneereplacementanditsinfluenceonoutcome
AT pandith preoperativeclinicalandradiologicalassessmentofthepatellofemoraljointinunicompartmentalkneereplacementanditsinfluenceonoutcome
AT ostleres preoperativeclinicalandradiologicalassessmentofthepatellofemoraljointinunicompartmentalkneereplacementanditsinfluenceonoutcome
AT jenkinsc preoperativeclinicalandradiologicalassessmentofthepatellofemoraljointinunicompartmentalkneereplacementanditsinfluenceonoutcome
AT doddc preoperativeclinicalandradiologicalassessmentofthepatellofemoraljointinunicompartmentalkneereplacementanditsinfluenceonoutcome
AT murrayd preoperativeclinicalandradiologicalassessmentofthepatellofemoraljointinunicompartmentalkneereplacementanditsinfluenceonoutcome