Finkelstein's test and the Grind Test



- Finkelstein's test:
    - ask patient to make a fist over his thumb, and ulnarly deviating wrist
    - sharp pain at this site is produced by active extension and abduction of the thumb against resistance;
- Differential Diagnosis:
     - DeQuervain's tenosynovitis must be differentiated from degenerative arthritis & trapeziometacarpal joint;
     - test to differentiate the two is the Grind test which will usually be negative in DeQuervain's but positive in degenerative arthritis;

- Grind Test:
     - it is performed by holding thumb proximal phalanx & MCPJ in examiner's hands & forcefully pushing against trapeziometacarpal joint, while also rotating it slightly, to cause grinding motion



Original Text by Clifford R. Wheeless, III, MD.

Last updated by Data Trace Staff on Wednesday, December 12, 2012 3:21 pm