Green Classification of Trigger finger
January 8, 2021 || By : Dr. MhmadFarooq || Hand Surgery
| Last updated on January 24, 2021
what is the Green Classification of Trigger finger?
- Trigger finger is a Stenosing tenosynovitis caused by inflammation of the flexor tendon sheath, it happened mostly at the level of the A1 pulley.
- There are 5 Annular Pulleys (A) 3 Cruciform pulleys (C).
- The most two important A pulleys are A2 and A4.
- Trigger finger is classified by Green into 4 grades:
| Grade | Description |
|---|---|
| Grade I | Pain and tenderness at the A1 pulley. |
| Grade II | Catching of digit. |
| Grade III | Locking of digit; passively correctable. |
| Grade IV | Fixed, locked digit. |
Pulley System of the finger 
Green Classification of Trigger finger
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