Green Classification of Trigger finger
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 Pulley) 3 Cruciform pulleys (C Pulley).
- The most two important A pulleys are A2 and A4 pulleys.
- Trigger finger is classified by Green into 4 grades:
Extensor Tendon Injury of the Hand
- Extensor tendon injury of the Hand is among the most common presented injuries to the ER.
- The most common injured finger is the long (third) finger. Read More
| 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 
Thumb Pulleys 
Trigger finger Classification
- De Quervain Tenosynovitis is a stenosing tenosynovitis of the abductor pollicis longus and extensor pollicis brevis tendons at the 1st dorsal compartment of the wrist. It was first described by Fritz de Quervain in 1895.. Read More
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