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Supraspinatus Test
Aka: Supraspinatus Test, Empty Cans Test, Full Cans Test, Shoulder Abduction
- See Also
- Shoulder Strength Exam
- Shoulder Anatomy
- Shoulder Exam
- Shoulder History
- Shoulder Pain
- Indication
- Shoulder Impingement
- Technique: Start Position
- Patient forward flexes Shoulder 90 degrees (directly in front or 30 degrees abducted to side)
- Hand position (pronation or supination isolates different muscles)
- Empty Cans Test (isolates supraspinatus muscle)
- Wrists pronated as if emptying cans
- Full Cans Test (isolates biceps muscle)
- Wrists supinated as if holding cans upright
- May be more specific for Supraspinatus impingement
- Technique: Provocative Maneuver
- Patient tries to maintain forward flexion against the examiner's downward pressure
- Interpretation
- Arm weakness is specific to Supraspinatus impingement
- Efficacy
- Test Sensitivity: 44%
- Test Specificity: 90%