Clinical Image of Boutonniere and Swan Neck Deformity

Abstract: Boutonniere deformity -Fixed deformity of the finger consisting of flexion of the PIP joint and extension of the DIP joint. A result of rheumatoid destruction of the extensor tendon mechanism at the PIP joint and also secondary to trauma without arthritis. Can be moderate to severe and indicates that a separate classification system exists. Swan-neck deformity consists of hyperextension of the proximal interphalangeal (PIP) joint, flexion of the distal interphalangeal (DIP) joint, and sometimes flexion of the metacarpophalangeal (MCP) joint.

Keywords: Juvenile rheumatoid arthritis, Distal interphalangeal joint, DIP, Proximal interphalangeal joint, PIP, Metacarpophalangeal joint, MCP

Edition: Volume 10 Issue 5, May 2021,

Pages: 1158 - 1158

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Clinical Image of Boutonniere and Swan Neck Deformity

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