Rheumatoid arthritis (RA) frequently affects the hand and wrist, resulting in pain, reduced joint stability, impaired proprioception, muscle weakness, and limitations in daily activities. Although conventional rehabilitation primarily focuses on range of motion and strengthening exercises, sensorimotor impairments such as proprioceptive deficits are often underaddressed. The SMART-HAND (Sensory, Massage, Approximation, ROM, Training = Strengthening + Perturbation) protocol was developed as a structured, mechanism-based rehabilitation program to improve proprioception, joint stability, motor control, and hand function. This randomized controlled trial aims to evaluate the effectiveness of the SMART-HAND protocol in individuals with RA by comparing its effects on hand function, proprioception, pain, dexterity, muscle strength, and functional performance with conventional rehabilitation and a control group.