Leg braces configured to assist in straightening of a users leg are shown and described. Each of the leg braces includes an anterior brace configured to be braced against an anterior portion of the leg proximal to the knee joint, having a selectively expandable and contractible bladder and an anterior brace attachment mechanism for attaching the anterior brace to a posterior brace. In some examples, each of the leg braces further includes the posterior brace configured to be braced against a posterior portion of the leg, the posterior brace having a rigid elongate base, an upper posterior brace attachment mechanism, and a lower posterior brace attachment mechanism for attaching the posterior brace to the leg below the knee joint.
