Abstract: There is provided an orthopedic device for therapy and rehabilitation of knee joints and the like which includes a flexible wraparound style boot which substantially supports a user's foot and ankle. The boot includes an interior for receiving the user's foot, heel and toe portions, and a substantially open front portion for easy insertion and withdrawal of a user's foot. An adjustable closure spans across the open front portion to help conform the boot to the user's foot without unnecessary binding, and a pair of manipulation straps extend from opposite sides of the toe portion of the boot adjacent the substantially open portion. A pair of grasping handles are attached to respective manipulation straps to provide exercise and flexion control by the patient. The device insures proper line of pull and anatomically correct splay. In a preferred embodiment, the flexion straps are adjustable in length adjacent the handles to facilitate adjustment by the patient for optimal use.