Measurement of hip prostheses using image analysis. The maxima hip technique
Hardinge, K.; Porter, M.L.; Jones, P.R.; Hukins, D.W.; Taylor, C.J.
Journal of Bone and Joint Surgery. British Volume 73(5): 724-728
1991
ISSN/ISBN: 0301-620X PMID: 1894658 Document Number: 383383
A computer-based image analysis sytem has been developed as a research tool in total hip replacement. The system has been programmed to take multiple measurements from coronal plane radiographs. Poor quality radiographic images can be enhanced and standardised. The measurements which can be obtained include stem subsidence, cup migration, cup wear, and stem loosening. Reproducibility and accuracy were .+-. 0.01 mm and .+-. 0.5 mm respectively. The present application is in retrospective research, but prospective monitoring of radiographs is planned.