This intermediate-level course provides rehabilitation practitioners with a detailed overview of the pathophysiology and mechanics of the joints of the hand of those diagnosed with osteoarthritis (OA). Both occupational therapists (OTs) and physical therapists (PT) are trained initially as generalists in understanding the signs and symptoms of OA, the functional implications of the condition, and basic methods of intervention. An intimate knowledge of this condition and its treatment, typically reserved for those who specialize in hand therapy, will become paramount for generalists, too. With an aging American population, and based on the percentage of older adults affected, will come an increase in the number of individuals experiencing the signs, symptoms, and occupational disruptions associated with OA. The focused content on hand and wrist OA offered in this course provides the practitioner with the tools needed to assist clients in decreasing pain and deformity, while enhancing function. The course offers practitioners in-depth knowledge of several of the most common medical and evidence-based treatments, and it provides instruction for the application of techniques in evaluation and intervention. These include specific interventions, physical agent modalities, orthoses (splints), adaptive equipment, and joint protection to allow clients to engage in meaningful daily occupations.