Glossary Anatomy
Central slip
Polski: Pasmo centralne aparatu wyprostnego Czytaj po polsku →
The central slip is the central limb into which the extensor mechanism divides at the proximal interphalangeal joint. It inserts on the dorsal base of the middle phalanx and extends the PIP joint. Acute disruption — by laceration or by jamming of the flexed PIP — produces an extensor lag at the PIP and, over one to three weeks, the boutonnière deformity as the lateral bands migrate volar to the PIP axis and the unopposed terminal tendon hyperextends the distal interphalangeal joint.
Articles mentioning this term
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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.