Lay the arm with the thumb spica splint on a flat surface.
Remove the closures around the wrist. These are most often Velcro but some thumb spica splints have lacings which tie the splint closed.
Remove the Velcro closures around the hand.
Remove the Velcro closures around the thumb. Work carefully, as this is generally the most injured area for which thumb spica splints are used.
Remove the hand from the thumb spica splint.
Lay the arm with the thumb spica splint on a flat surface.
Cut away the bandages with bandage scissors, starting with the arm and work towards the thumb until all the bandages are cut away. Avoid any rigid parts or supports in the thumb spica splint.
Remove the hand from the thumb spica splint.