A hip spica cast application device for holding a patient's legs in a desired position while a spica cast is applied. The device includes an adjustable vertical post extending out of a base. Two extendable arms are pivotally attached to the top of the post. Each arm has a “U”-shaped leg holder at one end to receive and support a patient's thigh. A platform extends from a top of the vertical post for engagement with a table, such as a surgical table. During a hip spica casting procedure, the post length, arm length, and arm angles can be adjusted and locked in place to support and maintain the patient's legs at a desired position.
