Carpal Orthosis
The carpus is one of the three main joints in the forelimb and is located just proximal to the paw.

Carpal orthoses can be used to manage a wide variety of joint abnormalities including carpal hyperextension, and
varusinward angulation of the limb segment below a joint
algus deviationsoutward angulation of the limb segment below a joint
of the joint.

This type of orthotic device may be used in place of surgery, when surgical repair is not a possible or desired option, or it may be used at some distance after surgery if the procedure did not create the desired level of stability. In some cases, carpal orthoses are used as post-operative support to replace the traditional system of bandaging with a splint.

A carpal orthosis will cross the carpal joint and extend above and below. In cases of mild angular changes, the support may end at the top of the paw, leaving the foot free to contact the ground. In more severe cases it is necessary to extend the support under the paw to properly support the joint and to spread out the pressure in the brace.

An orthosis can be made to completely immobilize the joint, or to allow a controlled range of motion such as allowing flexion but limiting extension.

Neurological deficits in the forelimb (such as those present after a
Brachial Plexusa network of nerve fibers that innervate the muscles of the forelimb
injury) may also benefit from the positional support and protection of a carpal orthosis. While waiting for the progression of any neurological recovery in the limb it is important to keep the carpus protected from skin abrasions and not to allow
flexion contracturesabnormal shortening of muscle tissue which renders it resistant to stretching
of the digits or the carpal joint. It is important to note that to use a carpal orthosis in this situation the dog must have some control of the elbow and the shoulder joint in order to advance the lower part of the limb forward.

A carpal orthosis can also be extended upwards to include a section that crosses the elbow if this joint also requires support. This combined brace is called a carpal-elbow orthosis.