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Hand & Upper Limb
intermediate
X-Type

Clinodactyly

Congenital Hand Anomalies

A 5-year-old boy is referred with radial deviation of both small fingers present since birth. The deviation has progressively increased. On examination, there is approximately 30 degrees of radial angulation at the distal interphalangeal joint of both small fingers. Flexion and extension are normal. Radiographs show a trapezoidal middle phalanx with a C-shaped epiphysis on the radial side. Regarding clinodactyly:

Mark each as TRUE or FALSE

A

Clinodactyly is defined as deviation of a digit in the radioulnar plane (coronal plane angulation) a...

B

A delta phalanx (bracket epiphysis) has a C-shaped or longitudinally oriented epiphyseal plate that ...

C

Clinodactyly is deviation in the flexion-extension plane; the delta phalanx has a normal transverse ...

D

Treatment depends on severity and progression: observation for mild deformity (less than 10-15 degre...

E

The reverse wedge osteotomy (described by Carstam and Theander) involves removing a triangular wedge...

Answer the questions to see explanations

Click T (True) or F (False) for each option