Hand Arthritis Eased with Nighttime Finger SplintsInexpensive splints worn nightly can reduce the pain of hand osteoarthritis (OA), according to a study published in the journal Rheumatology (Feb. 2014). In the study, researchers tested custom-made splints on patients who suffered painful and deforming hand OA. Of the 23 participants who completed the study, 74 percent reported reduced pain after wearing splints for three months. Additionally, their average pain was lower three months after they stopped wearing the splints. A separate study reported hand pain was halved for patients who wore a long and rigid splint every night for a year.