Physical Therapy Assistant Practice Exam

What is the most commonly limited motion in a patient diagnosed with adhesive capsulitis?

1. Lateral rotation

2. Shoulder flexion

3. Shoulder abduction

4. Medial rotation

The correct answer is: Lateral rotation

In adhesive capsulitis, also known as frozen shoulder, the most commonly limited motion is lateral rotation. This condition is characterized by inflammation and thickening of the capsule surrounding the shoulder joint, leading to restricted range of motion. Lateral rotation is particularly affected since it involves the movement of the arm away from the body and is essential for many daily activities, such as reaching behind the back. The mechanism involves the shortening and tightening of the joint capsule, which significantly restricts this specific range of motion more than others. While shoulder flexion, abduction, and medial rotation are also limited in adhesive capsulitis, the most pronounced limitation typically observed is in lateral rotation. This limitation can be particularly impactful as it hinders various functional movements and increases discomfort during the rehabilitation process, making it a key focus in both assessment and treatment strategies.