Incidencia y factores de riesgo de luxación tras artroplastias totales de cadera con sistema acetabular de cerámica
Revista Española de Cirugía Ortopédica y Traumatología, ISSN: 1888-4415, Vol: 55, Issue: 6, Page: 437-445
2011
- 3Citations
- 16Captures
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Article Description
Este estudio analiza retrospectivamente la incidencia de luxación y sus factores de riesgo en una serie multicéntrica de artroplastias totales de cadera (ATC) con sistema acetabular Trident ® de cerámica. Se analizan frente a un grupo control los casos de luxación encontrados en una serie de 401 ATC llevadas a cabo con el sistema acetabular Trident ® de cerámica en 10 hospitales españoles entre los años 1998 y 2004, con un seguimiento medio de 5,08 años. Se evaluó la influencia de diferentes variables, generales, clínicas y quirúrgicas, y se realizó un análisis asistido por ordenador de las variables radiográficas posiblemente implicadas en el riesgo de luxación. La incidencia de luxación en el total de la serie fue del 1,75%, por debajo de las tasas de incidencia en series analizadas en las que se usan otro tipo de pares protésicos. Los factores de riesgo de luxación más importantes encontrados han sido los ángulos de abducción e inclinación acetabular (p = 0,016), aunque también se ha apreciado una tendencia a la luxación a medida que aumenta la edad del paciente y el grado ASA. A la hora de realizar una ATC de par cerámica-cerámica el ángulo de abducción acetabular parece ser el factor más importante a tener en cuenta para prevenir la luxación. Tamaños de cabeza femoral mayores de 32 mm podrían actuar como factor limitante del riesgo de luxación protésica. Variables clínicas como la edad del sujeto o el grado ASA muestran su tendencia como factores de riesgo de luxación protésica. This study retrospectively analysed the incidence of dislocation and its risk factors in a multicentre series of total hip replacement with a Trident ® ceramic acetabular system. Cases of dislocation in a series of 401 total hip replacements performed using a Trident ® ceramic acetabular system in 10 Spanish hospitals between the years 1998 and 2004, with a mean follow-up of 5.08 years, were analysed and compared to a control group. The influence of different variables, general, clinical and surgical was evaluated and a computer assisted analysis was made of the radiographic variables possibly involved in the risk of dislocation. The incidence of dislocation in the whole series was 1.75%, lower than incidence rates in series analysed that used other types of artificial joints. The most important dislocation risk factors found were the abduction angles and acetabular inclination ( P =.016), although there was also tendency to dislocation as the patient age and the ASA level increased. When performing a ceramic-ceramic joint total hip replacement, the angle of acetabular abduction appears to be the most important factor to take into account to prevent dislocation. Femur head sizes greater than 32 mm could act as a limiting factor of the risk of artificial joint dislocation. Clinical variables, such as the age of the subject or ASA level show a tendency as a risk of artificial joint dislocation.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S1888441511002098; http://dx.doi.org/10.1016/j.recot.2011.06.005; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=80855123712&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S1888441511002098; https://dx.doi.org/10.1016/j.recot.2011.06.005
Elsevier BV
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