Orthoses
Orthoses, depending on the particular model, are aimed at immobilising, supporting or partially controlling the movement of a joint. Hence, they help to fight against instability and enable the joint to rest to reduce the excessive stress at the root of osteoarthritis.
There are currently three types of orthoses:
Simple orthoses are used in the treatment of osteoarthritis of the knee and fingers. They do not enable straightening the joint, but they bring stability to the joint and may offer some relief. Hence, they can be useful for people who cannot undergo surgery and who suffer from severe osteoarthritis.
An example of a simple orthosis: reinforced or elastic knee support for the knee.
Dynamic orthoses or splints come from orthoses used in the sports world. They are mainly used for osteoarthritis of the knee and are aimed at straightening up the joint. However, even if in some cases a reduction of the varus movement has been observed, these results have yet to be confirmed.
Splints for immobilisation or rest are used for the knee, wrist and especially the hand (osteoarthritis of the fingers and base of the thumb) and place the joint in a position that relieves the stress on it and fights against deformation. They appear to be really beneficial as 40% of patients using a hand orthosis are still wearing it 5 years after the prescription.