Anatomical variations of acromions in brazilian adult’s scapulas

ABSTRACT

Introduction: According to morphology, acromion can be classified into three types: I (flat), II (curved),and III (hooked) and its characteristics are related to age and rotator cuff pathology. Here we haveanalyzed acromion ́s morphology in scapulas of Brazilian human skeleton and tried to establish possiblemorphofunctional correlations to literature data.Materials and Methods:Fifty-seven scapulas from HumanAnatomy laboratories of Universidade Federal de Minas Gerais were selected and divided in groups accordingto acromion ́s tip morphology and angle.Results:We observed that distribution of acromial morphologywas 5,2% type I (flat), 57,9% type II (curved), 36,9% type III (hooked).Conclusion:Our data is importantto compare Brazilian scapula bones to those from various other regions or races and could contribute todemographic studies of shoulder disease probability in Brazilian population.