A plaster spreader is a heavy-duty orthopedic instrument used to gently and safely widen plaster or synthetic casts during application, adjustment, or removal. It works like a pair of pliers, with thin, serrated jaws that fit into a cut made by a cast saw, allowing for controlled separation of the cast edges without harming the underlying skin.
- Henning Plaster Spreader: The most common design, featuring a plier-style handle and thin, flat, grooved jaws with horizontal serrations. It is used to facilitate cast removal after an initial cut has been made with a saw.
- Beeson Plaster Spreader: Another popular variant that shares the same function of safely spreading the cast material.
- Bohler's Plaster Bender: While not strictly a spreader for removal, this instrument is used to shape and contour casts during the application process to ensure a proper fit.
- Electric/Oscillating Plaster Saws: These are often used in conjunction with a spreader. The saw makes the initial cut, and the spreader then provides the leverage to widen the breach in the cast.