The Complex Relationship Between Body Mass Index and Risk for Adverse Outcomes Following Pyrocarbon Metacarpophalangeal Arthroplasty for Rheumatoid Arthritis

Body mass index was associated with pyrocarbon MCP implant failure in a non linear fashion, with overweight patients at risk for complications leading to revisions and late reoperations. Underweight patients may be at increased risk for late reoperations. These findings should inform patient and implant selection and help guide counseling for postoperative expectations.