camptodactyly
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(Gr. Campto-: bent, dactylo-: finger)
Permanent flexion of one or more fingers.
Definition: Camptodactyly is a flexion contracture of the proximal interphalangeal joint of the finger(s). Severe camptodactyly of multiple digits is usually associated with karyotypic anomalies (trisomy 18, 13, 15) or contracture syndromes. The deformation is often asymmetrical. The deformity can also be isolated and progressive during infancy or childhood.
Etiology
chromosomal anomalies
contracture syndromes
fetal akinesia deformation sequence (FADS)