J Korean Orthop Assoc.  2024 Apr;59(2):90-100. 10.4055/jkoa.2024.59.2.90.

Scapular Dyskinesis

• Kim TS
• Park HK
• Park JY

• KMID: 2555508
• DOI: http://doi.org/10.4055/jkoa.2024.59.2.90

Abstract

Overhead motion is achieved by efficiently transferring kinetic energy from the trunk to the hands through a kinetic chain. Among the kinetic chains, the scapula is located between the center of the body and the arms and becomes a critical link. In particular, a change or dysfunction of the scapular muscles may cause injury in athletes who overuse the shoulder. Scapular dyskinesis can be evaluated using three-dimensional wing computed tomography (3-D Wing CT). 3-D Wing CT was used to examine a patient in the prone position by measuring five angles (upward rotation; superior translation; anterior tilting; protraction; internal rotation). This method can provide objective information to diagnose scapular dyskinesis. Functional recovery exercises to restore the stability and strength of the scapula and overhead motion training that can utilize the correct kinetic chain can yield positive clinical results in patients with scapular dyskinesis.

Keyword

scapula; scapular dyskinesis; kinetic chain; overhead athletic function; shoulder stability