Clinodactyly Etiology / Epidemiology / Natural History
- Angular deformity of a digit in the radioulnar plane.
- Generally bilateral
- Most commonly affects the small finger
- Autosomal dominant inheritance
- Delta Phalanx = longitudinal epiphyseal bracket = when proximal phsis of a phalanx is not perpendicular to the long axis of the phalanx.
Clinodactyly Clinical Evaluation
Clinodactyly Xray / Diagnositc Tests
Clinodactyly Classification / Treatment
- Simple (isolated bony deformity)
- Complex (with soft-tissue involvement)
- Uncomplicated (<45°)
- Complicated (45°)
- Treatment: consider splinting / stretching. Rarely related to any funcitonal limitation. Consider corrective osteotomy or physiolysis for severe deformities with funtional limitation.
Clinodactyly Associated Injuries / Differential Diagnosis
- Trisomy 21
- Rubenstain-Taybi syndrome
- Cornelia de Langle's syndrome
Clinodactyly Follow-up Care
Clinodactyly Review References