Name
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Purpose1,2
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Description2
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Sensitivity, Specificity
|
DOR
|
Reliability Validity
|
Likelihood Ratio +/-
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Jerk Test
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Tests for posterior instability/ torn posterior or posteroinferior labrum.
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With the patient seated the examiner grasps the elbow with one hand and the scapular with the other and elevates the patient’s arm to 90° of adduction and internal rotation. Following this the examiner 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. A positive test is indicated by sharp pain in the shoulder with or without a clicking sound
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Sensitivity=
733
Specificity=
983
|
135.193
|
|
LR+ =
36.53
LR- =
0.273
|