Soft splinting with neoprene: the thumb abduction supinator splint.

Thermoplastics are useful for many types of splints, but most splints made from them position the hand statically and have the disadvantage of limiting the sensory feedback that occurs during normal use and movement. Neoprene is an alternative to thermoplastics when dynamic mobility in splinting is the goal. Neoprene is soft, stretchable, lightweight, durable, nontoxic, machine-washable, and has a good memory. The TASS uses the Bobaths' key point of forearm supination and thumb abduction to position the upper extremity more functionally without the patient having to use effort. Thus sensory feedback can occur while the limb is moving within a prescribed range. The TASS can be used as an extra "hand" during the occupational therapy treatment session, or it can be applied immediately after treatment to continue to facilitate functional positioning of the limb.