Empty Can (Jobe's) Test
Assess for tendinosis, partial or complete tear of rotator cuff
Performing the Test
Have patient abduct their arm to 90°, angled forward by 30°(in line with plane of scapula) and then internally rotate with thumb pointing to the floor
Supraspinatus strength evaluated against examiner-applied inferiorly
Positive test: indicated by weakness in empty can position
Also note pain for impingement, tendinosis
Distinguish weakness secondary to pain from true weakness
Sensitivity: 45%; specificity: 89%
LR+ = 4.1; LR- = 0.6
Sensitivity: 76%; specificity: 89%
LR+ = 6.8; LR- = 0.3
Baxter S, ed., McScheffrey G, ed. Toronto Notes: Comprehensive Medical Reference & Review for MCCQE 1 & USMLE 2. 26th ed. Toronto: Toronto Notes for Medical Students Inc; 2010.
Essential Evidence Plus. http://www.essentialevidenceplus.com. 2011. Accessed February 2011.
Hurley K. OSCE and Clinical Skills Handbook. Halifax: Elsevier Canada; 2005.