RESUMEN

En la actualidad, la técnica de tallos de crecimiento es uno de los métodos más empleados en el manejo de la escoliosis de aparición precoz. No obstante, requiere frecuentes intervenciones quirúrgicas para distraer los tallos, y así mantener un crecimiento adecuado de la columna y controlar la deformidad raquídea. Recientemente se han introducido los tallos de crecimiento de distracción magnética con el mismo objetivo terapéutico pero sin el inconveniente de la distracción quirúrgica repetida. Una de las limitaciones que presenta este avance técnico es el incremento en la exposición a radiaciones ionizantes a consecuencia del aumento en la frecuencia de las distracciones, en comparación con los tallos de crecimiento convencionales. Presentamos una mejora de la técnica de distracción inicial, proponiendo una solución al inconveniente de la exposición múltiple a radiaciones ionizantes, empleando la ecografía para el control del proceso de elongación de los tallos de crecimiento de distracción magnética (AU)

The growing rod technique is currently one of the most common procedures used in the management of early onset scoliosis. However, in order to preserve spine growth and control the deformity it requires frequent surgeries to distract the rods. Magnetically driven growing rods have recently been introduced with same treatment goal, but without the inconvenience of repeated surgical distractions. One of the limitations of this technical advance is an increase in radiation exposure due to the increase in distraction frequency compared to conventional growing rods. An improvement of the original technique is presented, proposing a solution to the inconvenience of multiple radiation exposure using ultrasound technology to control the distraction process of magnetically driven growing rods (AU)

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RESUMEN

The growing rod technique is currently one of the most common procedures used in the management of early onset scoliosis. However, in order to preserve spine growth and control the deformity it requires frequent surgeries to distract the rods. Magnetically driven growing rods have recently been introduced with same treatment goal, but without the inconvenience of repeated surgical distractions. One of the limitations of this technical advance is an increase in radiation exposure due to the increase in distraction frequency compared to conventional growing rods. An improvement of the original technique is presented, proposing a solution to the inconvenience of multiple radiation exposure using ultrasound technology to control the distraction process of magnetically driven growing rods.

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RESUMEN

Presentamos el caso de una paciente de 49 años de edavresentaba un estadio III, implantándose una artroplastia trapecio- metacarpiana (TPZMTC) no cementada cuyo control radiológico postoperatorio fue correcto. La evolución fue favorable hasta el segundo mes, a partir del cual empezó con episodios de dolor intenso acompañados de inflamación en la raíz del primer radio y presentando a nivel radiológico una fractura del trapecio. En la siguiente consulta de revisión postquirúrgica, se confirmó mediante una TAC la movilización de la prótesis trapecio - metacarpiana por estallido del trapecio e impactación en la base del escafoides. Debido a esto hubo que someter a la paciente a una nueva intervención para la retirada de la prótesis y realización de una artroplastia de suspensión. Palabras claves: rizartrosis, artoplastia trapecio, complicaciones prótesis trapecio - metacarpianas

We report the case of a 49 year old woman with bilateral rizarthrosis Eaton stage II . At fi rst time she was operated of the right hand on which an extension and abduction osteotomy of the fi rst metacarpal was performed successfully. One year later she had surgery on his left hand, which had worsened and had Eaton stage III, implanting an trapezium arthroplasty - metacarpal ( TPZMTC ) cementless whose postoperative radiological control was correct. The outcome was favorable until the second month, after which began with episodes of severe pain accompanied by infl ammation at the root of the fi rst ray and radiologically presenting a fracture of the trapezium. The following review of postsurgical consultation was confi rmed by a CT mobilizing prosthesis trapezium - metacarpal and the trapezium burst impaction at the base of the scaphoid. Because of this it was necessary to subject the patient to a new surgery for removing the prosthesis and performing a suspension arthroplasty

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