Glossary Condition
Boutonnière deformity
Polski: Deformacja butonierkowata (palec butonierkowaty) Czytaj po polsku →
Also known as buttonhole deformity
The boutonnière deformity develops over one to three weeks following acute central-slip disruption. As the lateral bands migrate volar to the PIP joint axis they lose their extensor effect at the PIP and exert hyperextension force at the DIP via the terminal tendon. The PIP fixes in flexion while the DIP is pulled into hyperextension. Acute closed central-slip injury is managed with full PIP extension splinting for six weeks; an established deformity is more difficult to address surgically because correction of PIP extension reliably trades extension for a flexion deficit.
Articles mentioning this term
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Proximal interphalangeal (PIP) joint arthritis: fusion or joint replacement
PIP joint arthritis (the middle joint of a finger): fusion or replacement, silicone or surface implants, complications, failed implants and recovery.
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Clinical examination of the hand and wrist
Hand and wrist examination for FESSH candidates: how accurate the Phalen, Tinel, scratch collapse, Elson, Watson, grind, fovea and Allen tests really are.
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Extensor tendon injuries: zone-based diagnosis and management
Diagnosis, classification, splinting and surgical management of extensor tendon injuries, with contemporary rehabilitation evidence.