The elbow joint is extremely prone to haemarthroses, and when these occur t
he elbow requires support and rest. Supporting the limb with a simple colla
r-and-cuff sling, a triangular bandage either with or without a shoulder im
mobilization device will provide an analgesic effect without adding an unne
cessary heavy orthosis. As the swelling subsides and the pain lessens a dyn
amic orthosis aids in the support and compression. When considering functio
nal bracing of the elbow joints there are a number of basic principles to b
e followed. One requires to consider problems of orthosis suspension, two d
imensional motion and stabilization in the functional range of motion. This
article provides the rationale for the special needs of persons with haemo
philia who suffer from involvement of their elbow joints.