The purpose of the present study was to evaluate the effectiveness of a nighttime positioning hand splint in patients with RA in terms of pain, grip and pinch strength, upper limb function, quality of life, and patient satisfaction. The hypothesis is that the stabilization of hand during nighttime could decrease pain and consequently improve quality of life.

The involvment of wrist and fingers is very common in RA and it could affect hand function and, consequently, affect activities of daily living (ADL). Some authors suggest that the rest of hand could decrease pain and inflammation. Splints are external appliances that used in a specific body part provides the best alignment and rest in correct functional position. The goal of a hand, fingers and thumb in RA is stabilize the hand while the patients are not making theirs ADL and try to decrease the pain.

Inclusion Criteria:

• Rheumatoid arthritis classified according to the ACR criteria.
• Use of the same remissive drugs for at least 6 months before the intervention and the same doses of the same corticosteroids and nonsteroidal anti-inflammatory drugs for at least one month before the study.
• A score ≥ 3 and ≤ 7 on a visual analog scale (VAS) for pain in the more aching hand.
• Agreement to participate in the study, and signing of a free informed consent form.

Exclusion Criteria:

• Presented deformities in the more aching hand that did not permit fabrication of the splint.
• Patients using any other type of upper limb splint.
• Patients with a surgery scheduled within 6 months after the study.
• Patients allergic to the splint material.
• Patients with mental deficiency.
• Patients who lived in inaccessible areas.