Distal femoral bone mineral density after total knee arthroplasty: a comparison with general bone mineral density.
作者： C. J. M. van Loon , W. J. G. Oyen , M. C. de Waal Malefijt , N. Verdonschot
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摘要: The bone mineral density (BMD) of the distal femur may decrease after cemented total knee arthroplasty (TKA) as a result stress shielding effect femoral component. purpose study was to determine changes in BMD compared with those necks and lumbar spine TKA. two regions interest femur, both measured dual-energy X-ray absorptiometry 10 patients (age range 41-80 years, mean 62 years) 12 TKAs preoperatively during follow-up for 1 year surgery. hip measurements were performed comparison assess if general occurred median region behind anterior flange component 22% (95% CI: 12%-33%), while average just above 8% 2%-13%). difference change between before TKA significant (p = 0.03).We found less than 1% on preoperative (not significant). A periprosthetic resorption did not differ
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