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摘要
The aim of this research was to evaluate the risk factors related to condylar resorption (CR) after orthognathic surgery. Was realized a systematic review with a search of the literature performed in the electronic databases PubMed, MedLine, Ovid, Cochrane Library for current evidence in the world literature as conducted, and relevant articles were selected in according to inclusion and exclusion criteria and the findings were compared. Eight papers, (follow-up 12 months to 69 months) were including. A sample of 2567 patient with mandible or bi maxillary surgery with an age range from 14 to 46 year old was observed. In 137 patients (5.3%) CR was observed , with a 97.6% (122) female. CR was related to 118 cases with mandibular deficiencies with high mandibular plane (advancement surgery). CR were present principally in bi maxillary surgery with a 103 cases (75.2%) and only two papers show any analysis to the relation with TMJ dysfunction. Current evidence in CR is poor but supports those female patients with mandibular deficiency and high mandibular plane angle submitted to bi maxillary surgery with change in occlusal plane (counterclockwise) are associated with condylar resorption after orthognathic surgery. El objetivo de esta investigaci車n fue evaluar los factores de riesgo asociados a reabsorci車n condilar (RC) posterior a cirug赤a ortogn芍tica. Fue realizada una revisi車n sistem芍tica con una b迆squeda de la literatura realizada en bases de dato electr車nicos como PubMed, MedLine, Ovid, Cochrane Library buscando actual evidencia en la literatura mundial; art赤culos relevantes fueron seleccionados seg迆n los criterios de inclusi車n y exclusi車n, comparando sus resultados. Ocho art赤culos (tiempo de seguimiento de 12 a 69 meses) fueron incluidos. Se observ車 una muestra de 2567 pacientes con cirug赤a mandibular o bimaxilar con una edad de entre 14 y 46 a os. En 137 pacientes (5,3%) se observ車 reabsorci車n condilar, siendo el 97,6% (122 casos) de sexo femenino. La RC fue observada n 118 casos de deficiencia mandibular con un plano mandibular alto (cirug赤a de avance mandibular). La RC estuvo presente principalmente en cirug赤as bimaxilares con 103 casos afectados (75,2%) y solo dos art赤culos evidenciaron an芍lisis previo de disfunci車n de ATM. Actualmente la evidencia en RC es limitada pero fundamenta que mujeres con deficiencia mandibular y alto plano mandibular sometidas a cirug赤a bimaxilar con alteraci車n del plano oclusal (giro horario) son asociadas a la reabsorci車n condilar despu谷s de la cirug赤a ortogn芍tica.
