This thesis, comprising 5 separate studies, is concerned with fixation of prosthetic components in total hip arthroplasty. The results and conclusions of the studies fol-low;The initial stability of femoral revision components, the long cementless PCA stem and the Exeter standard stem cemented in a bed of impacted bone graft, was com-pared in an experimental study. The PCA stem was more stable than the Exeter stem. However, for both stems initial stability may not be sufficient to allow bone ingrowth. Initial fixation is especially vulnerable to torsion.Identical femoral stems with or without HA-coating were compared in a prospec-tive randomized clinical trial. The long-term stable fixation of a cementless Link RS femoral component was improved by application of hydroxyapatite coating…
Contents
Introduction
Femoral revision and allograft impaction
Total hip replacement in young patients
Hydroxyapatite coating of femoral stems
Cementless acetabular revision with allograft impaction
Prosthetic design
Radiolucent lines, migration and loosening
Aims of the investigations
Material
Patients
Implants
Methods
Results
Discussion
Conclusions
Clinical consequences of our findings
Acknowledgements
References
Author: Palm, Lars
Source: Linköping University
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