burn boutonniere
Pronunciation: /ˌbuːtəˈnɪər/
Finger deformity following dorsal hand burns where the central slip ruptures causing PIP flexion and DIP hyperextension.
Full Definition
Burn boutonniere is a specific finger deformity that develops following deep burns to the dorsal aspect of the hand and fingers. The injury damages the central slip of the extensor mechanism, resulting in the characteristic deformity of proximal interphalangeal (PIP) joint flexion with distal interphalangeal (DIP) joint hyperextension. This deformity resembles a finger poking through a buttonhole, hence the name. Prevention requires proper splinting and early range of motion, while treatment may involve tendon reconstruction or joint fusion in severe cases.
Usage
Usage note: Specify 'burn boutonniere' to distinguish from rheumatoid or traumatic causes.
In Context
- "The patient developed burn boutonniere of the index finger following inadequate splinting after dorsal hand burns." — Hand surgery consultation
- "Early recognition and treatment of central slip injury can prevent progression to burn boutonniere deformity." — Occupational therapy assessment