What is the Thumb Brace Push Ortho? The Thumb Brace Push Ortho is a thumb splint for arthritis, ideal for those who experience pain in the CMC or basal joint due to thumb osteoarthritis. This thumb brace has a functional design, as it maintains the thumb in an arch position by stabilising the joint of the thumb and placing the metacarpal in a functional position. This supports the thumb in a stable position during activities, and ensures the thumb is able to properly grip objects. What is CMC Ostheoarthritis? The thumb carpometacarpal joint - or CMC- is the joint that attaches the metacarpal bone to your wrist. Over time, the cartilage that protects the bones can wear away, leading to friction, pain and inflammation. This is known as CMC osteoarthritis. https://www.bettercaremarket.com.au/thumb-brace-push-ortho.html