Sulcus sign
Sulcus sign
The Sulcus sign (/ˈsʌlkəs saɪn/) is a clinical test used in the diagnosis of glenohumeral joint instability, particularly in cases of inferior glenohumeral instability.
Etymology
The term "sulcus" is derived from the Latin word "sulcus" which means "groove" or "furrow". The "sign" in medical terminology often refers to an observable indication of a specific disease or condition.
Procedure
The Sulcus sign test is performed with the patient in a standing or sitting position. The examiner pulls the patient's arm downwards and observes for the appearance of a sulcus or depression below the acromion. The presence of a sulcus sign indicates inferior instability of the glenohumeral joint.
Related Terms
- Glenohumeral joint: The ball and socket joint of the shoulder, which allows for a wide range of motion.
- Inferior glenohumeral instability: A condition where the humeral head moves excessively downward from the glenoid fossa.
- Acromion: The highest point of the shoulder that forms the roof of the shoulder joint.
See Also
External links
- Medical encyclopedia article on Sulcus sign
- Wikipedia's article - Sulcus sign
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