Computer Image-Guided Precise Acromioplasty for Reducing the Critical Shoulder Angle.

Long, Yi; Hou, Jing-Yi; Chen, Jian-Fa; Xiang, Wei; Lin, Qi-Sheng; Xiang, Xiao-Bing; Yang, Rui · Arthrosc Tech · 2022

case_series · Level IV

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Abstract

The shoulders with critical shoulder angle (CSA) of greater than 33-35° are associated with rotator cuff tears, whereas a CSA of less than 30° is likely to be osteoarthritic. However, anterior acromioplasty or lateral acromioplasty could not reduce high CSAs to the desired range (30-33°), with satisfactory accuracy and efficacy. Thus, we introduce a computer image-guided precise acromioplasty (CIG-PAP) technique, an individualized treatment based on three-dimensional planning. We believe that the introduction of this technique will provide an alternative approach to reduce a large CSA to the desired range (30-33°).

Anatomy