Elson Test
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The Elson test is a diagnostic test used for:
- Early detection of injuries to the central slip of the extensor tendon of the hand.
- The patient rest his hand on a table, with the proximal interphalangeal (PIP) joint of the involved finger flexed to 90 degrees over the edge of the table.
- Palpate the middle phalanx of the involved finger, then ask the patient to extend the PIP joint against resistance
- The Elson test is considered POSITIVE if the patient has a weak extension at the PIP joint while the DIP becomes rigid.
- While it is considered NEGATIVE if the PIP joint is tight in extension , while the DIP remains supple.
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