Hi, thanks for writing to HCM.
A certain amount of pain, swelling and stiffness
is seen commonly after the removal of cast of a wrist fracture
At times it so happens that the tendons of the fingers gets torn by the fracture fragments or gets entrapped in the fracture leading to limitation of finger movements.
Generally adequate physiotherapy
will help in resolving the symptoms.
If there is no improvement in symptoms, consult your treating doctor.
Hope this information is helpful. Good day