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. 2001 Jun 27;25(4):253–256. doi: 10.1007/s002640100234

Muscular function and bone mass after knee arthroplasty

J Anchuela 1, L Gomez-Pellico 2, M Ferrer-Blanco 3, M Slocker 2, R Rodriguez 2
PMCID: PMC3620828  PMID: 11561503

Abstract

We report a study of 28 women with severe primary gonarthrosis followed for 1 year. Variations in bone mineral density and in functional behaviour of knee extensors and flexors were studied before and after implantation of uncemented total knee prosthesis. A functional deficit was noted in the extensor apparatus, which increased in the first 6 months following surgery. This strength was not improved 1 year following the arthroplasty, but it was more efficient as shown by the reduction of muscle fatigue. Flexor strength was conserved and a pathological muscle balance was maintained, reaching maximum efficiency over a smaller joint range.

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