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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
medicine
Variables affecting initial stability of impaction grafting for hip revision
Clinical Orthopaedics and Related Research, Volume 432, Year 2005
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Description
Impaction grafting allows restoration of bone stock in hip revision, but there are reports of massive early subsidence. The aim of this study was to determine prognostic factors for stem and cup migration in a group of 56 consecutive patients followed up from 1 to 5 years. Cup and stem migration was correlated with 13 predictors including stem design, stem positioning, femoral anatomy, patient characteristics, and bone graft density. All migration occurred mainly during the first 3 months after surgery. Stem alignment changed by an average of 4.8°. Fifty percent of the change in stem alignment was explained by four variables: age, femoral diameter, stem design, and density of the graft at the tip of the stem. Stem subsidence averaged 2.7 mm, and cup migration averaged 3.0 mm. None of the predictors explained the wide variation of migration of the cup or distal migration of the stem. It may be necessary to determine implant stability at the time of surgery. Level of Evidence: Prognostic study, Level II-1 (retrospective study). See the Guidelines for Authors for a complete description of levels of evidence. © 2005 Lippincott Williams & Wilkins.
Authors & Co-Authors
Gokhale, Satish
United Kingdom, Bridgend
Princess of Wales Hospital
Soliman, Ayman
United Kingdom, Keele
Keele University
Egypt, Alexandria
Alexandria University Hospitals
Dantas, Pedro
Portugal, Lisbon
Hospital Curry Cabral
Richardson, James Bruce
United Kingdom, Keele
Keele University
United Kingdom, Oswestry
The Robert Jones and Agnes Hunt Orthopaedic Hospital Nhs Foundation Trust
Cook, Frank
United Kingdom, Oswestry
The Robert Jones and Agnes Hunt Orthopaedic Hospital Nhs Foundation Trust
Kuiper, Jan Herman
United Kingdom, Keele
Keele University
United Kingdom, Oswestry
The Robert Jones and Agnes Hunt Orthopaedic Hospital Nhs Foundation Trust
Jones, Peter Watts
United Kingdom, Keele
Keele University
Statistics
Citations: 26
Authors: 7
Affiliations: 5
Identifiers
Doi:
10.1097/01.blo.0000150103.75134.10
ISSN:
0009921X
e-ISSN:
15281132
Research Areas
Health System And Policy
Study Design
Cohort Study