Jerk test: Difference between revisions
Revision as of 11:17, 27 February 2021
Original Editor-Derek Little
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Purpose[edit|edit source]
This test is used to detect posteroinferior instability of the Glenohumeral joint.
Technique[edit|edit source]
而稳定病人的肩胛骨与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]The reported diagnostic accuracy for the jerk test was a sensitivity of 73% and specificity of 98%[3]
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
- ↑Dhir J, Willis M, Watson L, Somerville L, Sadi J. Evidence-Based Review of Clinical Diagnostic Tests and Predictive Clinical Tests That Evaluate Response to Conservative Rehabilitation for Posterior Glenohumeral Instability: A Systematic Review.Sports Health. 2018;10(2):141-145. doi:10.1177/1941738117752306