What are the steps in applying thumb spica?

Answer 1

A thumb spica is generally of 2 types cast and splint.

Applying a cast requires Plaster of Paris rolls which are commercially available. Here the critical part is the position of the wrist and thumb after the cast application. This position is called the functional position and is assumed by holding a virtual glass or similar object with the hand.

Thumb spica splints are available in various shapes and sizes. One should always try out the comfortable ones but it should not be just upto the wrist. An ideal thumb spica splint covers atleast half of the forearm to give adequate support to the thumb. It has velcro straps to keep it snugly wrapped around the hand and forearm. So its quite easy to apply and remove.