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    La relaci贸n isquiotibiales/cuadriceps como 铆ndice predictivo de gonartrosis

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    Se realiza un estudio muscular isocin茅tico en grupo de 26 mujeres afectadas de gonartrosis, antes de la intervenci贸n, a los 6 meses y al a帽o de la sustituci贸n articular, realizando un estudio evolutivo y comparativo entre ambas rodillas con el objetivo de verificar si el balance muscular se altera paralelamente a la funci贸n articular y cual es su evoluci贸n tras la artroplastia. La rodilla artr贸sica presenta un cu谩driceps m谩s d茅bil per conserva la funci贸n de la musculatura isquiotibial, con una relaci贸n isquiotibiales/cu谩driceps aumentada patol贸gicamente. Al a帽o de la artroplastia no mejora la fuerza extensora, se conserva la fuerza flexora y se mantiene el balance muscular patol贸gico. En la rodilla con menor afectaci贸n degenerativa la relaci贸n flexores/extensores se encuentra igualmente aumentada, por lo que se trata de su 铆ndice precoz de deterioro articular.An isokinetic muscular study was performed on a group of 26 women with primary gonarthrosis before surgery, six months and one year after joint replacement. An evaluative and comparative study of both knees was carried out in order to verify whether the muscular balance was altered in parallel with weaker but retained function of the ischiotibial musculature with an enhanced ischiotibial/quadriceps. One year after arthroplasty, extensor strength was not improved, though it was more efficient as revealed by reduced muscular fatigue, while flexor strength and pathological muscular balance were maintained. The flexor/extensor relation was also enhanced in the control knee, making this an early indicator of joint decoration
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