STUDY OF ACROMIAL MORPHOLOGY IN INDIAN POPULATION. Estudio de la morfología acromial en la población India

Objetivos: El proposito del estudio era evaluar la morfologia de acromion adulto en la poblacion India y correlacionar su asociacion con varias patologias del hombro. Materiales y metodos: La evaluacion morfologica fue realizada en 200 omoplatos secos adultos obtenidos del museo de osteologia del Departamento de Anatomia, Maulana Azad Medical College, Nueva Delhi. Se calculo la altura del arco acromial, angulo anterior y posterior del arco y su indice, usando el metodo objetivo de Getz et al  (1996) para demarcar forma acromial. La presencia o la ausencia de entesofitos fue observada en la superficie inferior de la cara anterior del acromion. Resultados: 28% de los omoplatos fueron el acromion de tipo I, 67% fueron el tipo II y el 5% fueron el tipoIII. La presencia de entesofitos en la superficie inferior de la cara anterior del acromion tambien fue estudiada; los enthesofitos fueron observados en 3.5% en el tipo acromial I, 15.67% en el tipo II y el 40% en el proceso acromial de tipoIII. Conclusiones: La asociacion entre el sindrome subacromial de compresion y el tipo acromial esta bien establecida. Les asistira a los clinicos para decidir la modalidad del tratamiento: conservador o quirurgico. Se debe tener en cuenta la asociacion de entesofitos subacromiales con la morfologia acromial y los desgarros del manguito rotador al interpretar opacidades en las radiografias.  Objectives: The purpose of the study was to asses the morphology of adult acromion  processes in Indian population and correlate its association with various shoulder pathologies. Materials and methods: Morphologic evaluation was conducted on 200 adult dry scapulae obtained from osteology museum of Department of Anatomy, Maulana Azad Medical College, New Delhi. The height of the acromial arch, anterior and posterior angle of arch and their ratio were measured by using objective method of Getz et al (1996) for determining acromial shape. Presence or absence of enthesophyte was noted on the undersurface of the anterior aspect of the acromion process. Results: 28% scapulae exhibited type I acromion, 67% exhibited type II and 5% exhibited type III. The presence of enthesophytes on the anterior undersurface of the acromion was also studied; enthesophytes were observed in 3.5% in type I acromion, 15.67% in type II and 40% in type III acromion process. Conclusions: Association between subacromial impingement syndrome and acromial type is well established. This will assist the clinicians in deciding the modality of treatment: conservative or operative. Association of subacromial enthesophytes with acromial morphology and rotator cuff tears should be borne in mind when interpreting opacities on radiographs.

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