Patent ID: 7837642

Claim:
A knee immobilizer, comprising: (a) an elongate semi-rigid frame having opposed convex and concave major surfaces for being positioned along a longitudinal axis of a dorsal aspect of a leg from above to below the knee; (b) a strap cooperating with the frame for encircling and retaining the frame on the leg; (c) a spacer lining for being positioned between the frame and the leg when in use to cushion and protect the leg against direct contact with the frame; (d) a first rigid spine adapted for being positioned on the frame along an elongate axis of the frame from above to below the knee in alignment with the longitudinal axis of the leg for maintaining the frame in a first predetermined rigid medical treatment extension position on the leg; and (e) a second rigid spine adapted for being positioned on the frame along an elongate axis of the frame from above to below the knee in alignment with the longitudinal axis of the leg for maintaining the frame in a second predetermined rigid medical treatment extension position on the leg in substitution for the first rigid spine; wherein the first spine is formed to an angle whereby the knee is immobilized in a position of less than 10 degrees flexion, and the second spline is formed to an angle whereby the knee is immobilized in a position of between about 10 degrees and about 30 degrees flexion.