Introduction

Basilar Thumb Arthritis is a form of arthritis that causes pain at the base of the thumb. Diagnosis is made clinically with a painful CMC grind test and radiographs of the hand showing osteoarthritis of the first CMC joint. Treatment can be conservative such as bracing or injections or operative depending on the severity of symptoms and the stage of disease. Riz factors for Basilar ThumbArthritis includes female gender, Ehlers-Danlos syndrome, and increased BMI.