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Periprosthetic bone density around fully hydroxyapatite coated femoral stem
- Source :
- Clinical orthopaedics and related research. (340)
- Publication Year :
- 1997
-
Abstract
- In this study, periprosthetic bone mineral density was measured at scheduled time intervals after surgery by dual energy x-ray absorptiometry in 21 patients to assess the history of bone density redistribution after femoral stem insertion. Measurements of changes in bone density with time were obtained for the regions of the greater trochanter, the lateral cortex, the tip, the medial cortex, and the calcar. In all regions, bone density decreased during the first 3 months after surgery; this was followed by a prolonged period of 18 to 30 months of bone gain, a subsequent period of steady state, and the final resumption of bone aging processes after the third postoperative year. The greatest loss was observed in the calcar region after 6 months (greater than 50%). The characteristic pattern of time related bone density changes obtained in this study may make it possible to compare other pathologic, design, or stiffness related patterns. This could have clinical relevance in the early diagnosis of pathologic processes and as a means of evaluating prosthetic designs.
- Subjects :
- Bone density
cortical bone
Dentistry
Periprosthetic
Biocompatible Materials
hip prosthesi
densitometry
Osteoarthritis, Hip
Bone remodeling
computer assisted tomography
Absorptiometry, Photon
Bone Density
hydroxyapatite, adult
Medicine
follow up
Humans
Orthopedics and Sports Medicine
Femur
human
Densitometry, X-Ray
Prospective Studies
Dual-energy X-ray absorptiometry
femur shaft
Aged
Bone mineral
bone age
Biocompatible Material
clinical article
dual energy X ray absorptiometry
medicine.diagnostic_test
business.industry
computer aided design
article
General Medicine
Middle Aged
priority journal, Aged
Postmenopause
medicine.anatomical_structure
Durapatite
bone mineral
early diagnosi
Surgery
Cortical bone
Female
Hip Prosthesis
business
Densitometry
Biomedical engineering
Subjects
Details
- ISSN :
- 0009921X
- Issue :
- 340
- Database :
- OpenAIRE
- Journal :
- Clinical orthopaedics and related research
- Accession number :
- edsair.doi.dedup.....a1624aa73e474247283ca8d5acaa90cd