Execution:
- The patient is in sitting position with the hand on the examination table
- The examiner grasps the patient’s hand with one hand in order to stabilize the wrist and metacarpals in neutral position
- With the other hand, the examiner applies pressure over the anterior oblique ligament and creates a shearing force across the CMC joint by rocking the metacarpal across the trapezium
Positive Outcome: Pain, even a slight painful sensation in the basal region of the thumb
| Study | Reliability | Sn | Sp | LR+ | LR- |
| Sela et al (2017) | NA | 99 | 95 | 19.8 | 0.01 |
| Comment: The pressure-shear test appears to have good ability to both confirm the diagnosis of CMC osteoarthritis and to identify those who do not have it. In the study, the test was performed last in a series of 4 provocative tests, which may have sensitized the joint. | |||||
