Jerk Test
Other Names
- Jerk Test
- Jahnke Jerk Test
- Painful Jerk Test
- Anterior Shoulder Jerk Test
- Jahnke Test
- Posterior Jerk Test
- Shoulder Jerk Test
- Posterior Shoulder Jerk Test
- Posterior Instability Jerk Test
- Posterior Labral Jerk Test
Purpose
- Evaluate the integrity of the Glenoid Labrum
- Specifically, it stresses the posterior and inferior components
Description
- The patient is seated
- Examiner grasps the elbow with one hand, scapula with the other and
- The arm is elevated to 90° of adduction and internal rotation
- The examiner then provides an axial compression load to the humerus through the elbow maintaining the horizontally abducted position
- The compression force is maintained as the examiner moves the arm into horizontal adduction.
- Positive test
- Pain ± clicking sound
Pathology
Evidence
- Kim et al[4]
- Sensitivity: 73%
- Specificity: 98%
- LR+: 36.53
- LR-: 0.273
See Also
References
- ↑ Kim, Seung-Ho, et al. "The Kim test: a novel test for posteroinferior labral lesion of the shoulder—a comparison to the jerk test." The American journal of sports medicine 33.8 (2005): 1188-1192.
- ↑ Goldenberg, Brandon T., et al. "Comprehensive review of the physical exam for glenohumeral instability." The Physician and Sportsmedicine 48.2 (2020): 142-150.
- ↑ Kovacic, Ladislav, Lennard Funk, and Pascal Gleyze. "Posterior shoulder instability." Arthroscopy: Basic to Advanced. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. 483-498.
- ↑ Kim SH, Park JS, Jeong WK, Shin SK. The Kim test: a novel test for posteroinferior labral lesion of the shoulder-a comparison to the jerk test. Am J Sports Med.2005; 33:1188-1192.
Created by:
John Kiel on 29 July 2019 16:43:38
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Last edited:
7 January 2026 23:32:42
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