annular

Flexor Pulley Ruptures

Anatomy

 

5 Annular pulleys

3 Cruciate pulleys

 

Pathology

 

A1 and A5 expendable

 

Loss of other annular pulleys can lead to bowstringing

- A2 & A4 +/- A3

 

Aetiology

 

Rock climbers

- usually when slipping

 

May hear or feel a pop

 

Develop swelling / tenderness / pain

 

Bowstringing