Jerk test: Difference between revisions
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'''Original Editor '''- [[User:Derek Little|Derek Little]] | '''Original Editor '''- [[User:Derek Little|Derek Little]] | ||
''' | '''Top Contributors''' - {{Special:Contributors/{{FULLPAGENAME}}}} | ||
</div> | </div> | ||
== Purpose == | == Purpose == | ||
test used to detect | This test is used to detect postero-inferior instability of the Glenohumeral joint. | ||
== Technique == | == Technique == | ||
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.<ref name="Kim">Kim et al. Painful Jerk Test:& | 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.<ref name="Kim">Kim et al. [https://scholar.google.com/scholar_url?url=https://journals.sagepub.com/doi/pdf/10.1177/0363546504265263&hl=en&sa=T&oi=gsb&ct=res&cd=0&d=15839534755181118423&ei=erBtZNhC3pfL1g-ZyI6gBw&scisig=AGlGAw_BMGzb9Zyx6TqHKd1nFOEU Painful Jerk Test]:& A Predictor of Success in Nonoperative Treatment of Posteroinferior Instability of the Shoulder.& Am J Sports Med 2004 32: 1849 </ref> | ||
{{#ev:youtube| | {{#ev:youtube|mn7f6KVvScE|400}}<ref>Jerk Test (CR) Available from: https://www.youtube.com/watch?v=mn7f6KVvScE [last accessed 27/2/2021]</ref> | ||
== Evidence | == Evidence == | ||
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 | 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.<ref name="Munro">Munro et al. [https://scholar.google.com/scholar_url?url=https://www.sciencedirect.com/science/article/pii/S1356689X08001422&hl=en&sa=T&oi=gsb&ct=res&cd=0&d=5796902494765572071&ei=l7BtZIrMD5OdmwGK8ImQAQ&scisig=AGlGAw-b4RjhiEm1pSNkRMxk5y4C 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</ref> The reported diagnostic accuracy for the jerk test was a sensitivity of 73% and specificity of 98%<ref>Dhir J, Willis M, Watson L, Somerville L, Sadi J. [https://scholar.google.com/scholar_url?url=https://journals.sagepub.com/doi/pdf/10.1177/1941738117752306&hl=en&sa=T&oi=gsb&ct=res&cd=0&d=1884381390624980988&ei=urBtZK6YCN6Zy9YPj4u8-Ak&scisig=AGlGAw-rAGldIc2W0o64gmx2GLI1 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. </ref> | ||
== References == | == References == | ||
<references /> | <references /> | ||
[[Category: | [[Category:Assessment]] | ||
[[Category:Musculoskeletal/Orthopaedics]] | |||
[[Category:Shoulder]] | |||
[[Category:Special_Tests]] | |||
[[Category:EIM_Residency_Project]] | |||
[[Category:Primary Contact]] | |||
[[Category:Sports Medicine]] | |||
[[Category:Sports Injuries]] | |||
[[Category:Athlete Assessment]] | |||
[[Category:Shoulder - Special Tests]] |
Latest revision as of 08:38, 24 May 2023
Original Editor - Derek Little
Top Contributors - Admin, Clinically Relevant, Scott Buxton, Fasuba Ayobami, Wanda van Niekerk, Chelsea Mclene, 127.0.0.1, Tony Lowe, Derek Little, Evan Thomas, Kai A. Sigel, WikiSysop, Kim Jackson and Claire Knott
Purpose[edit | edit source]
This test is used to detect postero-inferior 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.[3] The reported diagnostic accuracy for the jerk test was a sensitivity of 73% and specificity of 98%[4]
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
- ↑ Jerk Test (CR) Available from: https://www.youtube.com/watch?v=mn7f6KVvScE [last accessed 27/2/2021]
- ↑ 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.