(Reuters Health)—People with thumb-base osteoarthritis (OA) who receive a combination of conservative treatments, including education in self-management, ergonomics and hand exercises, may experience clinically meaningful improvements in hand function, a study suggests. Researchers randomized 204 people with thumb-base OA (1:1) to receive education on self-management and ergonomics alone (comparator) or in combination with a base-of-thumb…