If a patient presents with a positive Circumduction Test, what type of GH subluxation would the therapist note?

A positive Circumduction Test typically indicates that there may be a posterior glenohumeral (GH) subluxation. During this test, a therapist would note a loss of normal joint play or abnormal movement of the humeral head within the glenoid cavity, particularly during circular arm movements. This abnormality is often associated with posterior instability, which manifests as a subluxation of the humeral head moving posteriorly.

In the context of a posterior GH subluxation, the patient's ability to perform a full range of motion might be impeded, and they may experience discomfort or a feeling of instability as the humeral head shifts backward. Understanding this association between the Circumduction Test and posterior subluxation allows therapists to better evaluate and treat shoulder instability issues effectively.

Different types of GH subluxations present with distinct symptoms and may impact movement in various ways, but the positive Circumduction Test is most closely linked to the phenomenon of posterior subluxation.