Full Can Test

Full can test for supraspinatus tendinopathy
Test Procedure:
• Client elevates arms in the scapular plane (30° anterior to frontal plane) to 90° with GH ER; examiner applies downward resistance.
Positive results:
• Weakness
Negative Results:
• No weakness
Implications of positive test result:
• Supraspinatus tendinopathy
Psychometric Properties for supraspinatus tear: (Cleland et al., 2022) p. 490
Sensitivity: 0.79 Specificity: 0.70
LR+: 2.6 LR-: 0.30
Pain may be a better indicator than weakness for an RC tear: (Iwata et al., 2017)
Cleland, J. A., Koppenhaver, S., & Su, J. (2022). Netter's orthopedic clinical examination: An evidence-based approach (4th ed.). Elsevier
Iwata, E., Shigematsu, H., Inoue, K., Egawa, T., Sakamoto, Y., & Tanaka, Y. (2017). Muscle Weakness in the Empty and Full Can Tests Cannot Differentiate Rotator Cuff Tear from Cervical Spondylotic Amyotrophy: Pain Provocation is a Useful Finding. The open orthopaedics journal, 11, 1081-1086. doi.org/10.2174/1874325001711...