1-15
Section V. CASTS
1-15. INTRODUCTION
a. A cast is a device used for immobilization. Cast materials include plaster of Paris, fiberglass, and plastic. All come in rolls that can be applied in a manner similar to using an Ace bandage. Plaster casts are heavy, dry slowly, and lose strength and integrity if they become wet. Fiberglass and plastic casts are light in weight, dry quickly, and can be immersed in water and redried; however, they are expensive and may macerate underlying skin. Casts are usually applied by a trained orthopedic specialist under the supervision and direction of a physician.
b. Casts are used for several purposes.
(1) To immobilize fractures and hold bone fragments in reduction (placement for healing).
(2) To prevent movement in soft tissue injuries.
(3) To maintain proper alignment and correct deformities.
(4) To permit early mobilization.
