Execution:
- The patient is in sitting position with the hand on the examination table
- The test is done using a single-handed technique
- The examiner applies longitudinal traction to the thumb and then alternates dorsal and plantar pressure over the base of the metacarpal to provoke subluxation and then relocation of the joint
Positive Outcome: Pain within the joint
| Study | Reliability | Sn | Sp | LR+ | LR- |
| Choa et al. (2014) | NA | 66.7 | 100 | ∞ | 0.33 |
| Comment: The traction-shift test both confirms the diagnosis of CMC osteoarthritis and may distinguish those who do not have it. A negative test, however, does not always imply negative radiographic evidence of thumb CMC osteoarthritis | |||||
