In Vitro Measurement of the Interface Micromotion at the Cemented Total Hip Arthroplasty System with Different Surface Roughness / 대한정형외과연구학회지
Journal of Korean Orthopaedic Research Society
;
: 55-61, 2003.
Article
Dans Coréen
| WPRIM
| ID: wpr-147912
ABSTRACT
PURPOSE:
The relative movements of the stem-cement interface and the cement-bone interface were measured in the cadaver femur with stems of different surface roughness. MATERIALS ANDMETHODS:
A stem which have polished surface and a stem which have roughen surface were used in the experiments, and their materials and shapes were virtually same. We inserted 5 stems of each type to the cadaver femur, that is overall 10 femur, and applied cyclic load to the femoral head of the stem to mimic the walking loads. The cyclic relative motions of stem-cement interface and cement-bone interface were measured by custom-made sensors.RESULT:
Stem-cement interface motion was 13 micrometer for the stem with polished surface and 4.5 micrometer for the stem with rough stem. It showed interface motion of 5 micrometer for the bone-cement interface for overall cases.CONCLUSION:
The relative interface motion of the stem-cement interface is affected by the surface roughness of the stem. But for the bone-cement interface, it cannot be said that the surface roughness of the stem affects the interface motion.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Cadavre
/
Marche à pied
/
Arthroplastie prothétique de hanche
/
Fémur
/
Tête
langue:
Coréen
Texte intégral:
Journal of Korean Orthopaedic Research Society
Année:
2003
Type:
Article
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