splints are worn at night or during rest periods in the daytime. Metacarpophalangeal (MCP) arthroplasty is a surgical method of improving pain, alignment, and function in people with ulnar drift.

To address the controversy, Kevin Chung and colleagues enrolled 163 rheumatoid arthritis patients with severe metacarpophalangeal joint ulnar drift and extensor lag deformities in a NIH-funded ...