Jerk test: Difference between revisions
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[[Category:Shoulder - Special Tests]] | |||
Revision as of 21:12, 31 January 2021
Original Editor - Derek Little
Top Contributors - Admin, Clinically Relevant, Fasuba Ayobami, Scott Buxton, Kai A. Sigel, WikiSysop, Kim Jackson, Claire Knott, Wanda van Niekerk, Chelsea Mclene, 127.0.0.1, Tony Lowe, Derek Little and Evan Thomas
Purpose[edit | edit source]
This test is used to detect posteroinferior instability of the Glenohumeral joint.
Technique[edit | edit source]
While stabilizing the patient’s scapula with one hand and holding the affected arm at 90° abduction and internal rotation, the examiner grasps the elbow and axially loads the humerus in a proximal direction.The arm is moved horizontally across the body. A positive result is indicated by a sudden clunk as the humeral head slides off the back of the glenoid. When the arm is returned to the original position, a second jerk may be observed, that of the humeral head returning to the glenoid.[1]
Evidence[edit | edit source]
A systematic review of the validity and accuracy of clinical tests used to detect labral pathology of the shoulder showed the +LR of the Jerk Test to be LR 34.71 and the -LR to be 0.27[2]
References[edit | edit source]
- ↑ Kim et al. Painful Jerk Test:& A Predictor of Success in Nonoperative Treatment of Posteroinferior Instability of the Shoulder.& Am J Sports Med 2004 32: 1849
- ↑ Munro et al. The validity and accuracy of clinical tests used to detect labral pathology of the shoulder--a systematic review. Man Ther. 2009 Apr;14(2):119-30
