Green Classification of Trigger finger

January 8, 2021 | By : OrthoFixar | Hand Surgery
| Last updated on April 13, 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 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:

See Also: Extensor Tendon Injury of the Hand

GradeDescription
Grade IPain and tenderness at the A1 pulley.
Grade IICatching of digit.
Grade IIILocking of digit; passively correctable.
Grade IVFixed, locked digit.
Green Classification of Trigger finger


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