Anatomia da escápula aplicada à abordagem cirúrgica posterior: parâmetros de segurança durante acesso ao ângulo lateral

Abstract

ObjectiveThe objective of this paper was to identify safety parameters in the posterior surgical approach of the scapula through a cross‐sectional cadaver study. MethodsThirteen cadaver shoulders with no history or surgery or prior musculoskeletal dysfunction with mean age, weight, and height of 70.1 years, 61.5kg, and 1.64 m, respectively, were dissected. The anatomic landmark of the studied pathway (infraglenoid tubercle) and its distance to the axillary and suprascapular nerves were measured. ResultsThe mean distance between the infraglenoid tubercle and the axillary nerve (T ‐ A) was 23.8mm and the mean distance from the infraglenoid tubercle to the suprascapular nerve (TI ‐ SE) was 33.2mm. ConclusionThe posterior approach may be considered safe through the interval between the infraspinatus and teres minor. However, caution should be taken during muscle spacing because of the short distance between the fracture site and the location of the suprascapular and axillary nerves. These precautions help to avoid major postoperative complications.