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5.
Int Orthop ; 25(4): 253-6, 2001.
Article in English | MEDLINE | ID: mdl-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.


Subject(s)
Bone Density/physiology , Knee Prosthesis , Muscle, Skeletal/physiology , Osteoarthritis, Knee/surgery , Range of Motion, Articular/physiology , Aged , Analysis of Variance , Case-Control Studies , Densitometry/methods , Female , Follow-Up Studies , Humans , Middle Aged , Postoperative Care , Preoperative Care , Probability , Recovery of Function , Sampling Studies , Severity of Illness Index , Time Factors
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