Fig. 4From: Influence of the site of acromioplasty on reduction of the critical shoulder angle (CSA) – an anatomical studyLeft: The CAP (red dot) is located anteriorly on the acromion and is affected by the anterolateral acromioplasty. Thus, anterolateral acromioplasty depicted by the blue line does not influence the CSA. Right: The CAP (red dot) is located posteriorly on the acromion and is not affected by anterolateral acromioplaty. Thus, anterolateral acromioplaty depicted by the blue line does not influence the CSABack to article page