In cemented total hip prostheses, the role of creep of the occurred with all three bonding conditions, allowing addiacrylic cement (polymethyl methacrylate, [PMMA]) in in-tional subsidence of the stem and a decrease in the stress creasing or decreasing the chance of failure of the cement components
A parametric finite-element analysis of the influence of the stem cement interface in total hip replacement
β Scribed by S.E. Clift; A.W. Miles
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 128 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0021-9290
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## Abstract A simplified threeβdimensional finite element model of the femoral component of a cemented total hip prosthesis was used to investigate whether partial debonding at the stemβcement or boneβcement interfaces propagates in a stable or unstable manner, and to assess the resultant variation
## Abstract Thirtyβeight cemented acetabular components that had been clinically implanted in clientβowned dogs were retrieved postmortem and analyzed for mechanical stability, volumetric wear, and articular surface damage. Comparison of the results from this study with similar studies on autopsyβr
Debonding of the cement-metal interface of a cemented femoral component is one mechanism associated with loosening of total hip replacement. An ultrasonic pulse-echo technique was developed to determine, nondestructively, the integrity of the cement-metal interface in vitro. The characteristics of t