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Home > F. Pathology by regions > Limbs > clinodactyly


Monday 13 June 2005

Definition: Clinodactyly is a fixed abnormal deviation of the finger in the coronal or radioulnar plane. It typically affects the middle phalanx of the fifth finger and produces a radial angulation of the distal interphalangeal joint.


- familial clinodactyly

  • usually isolated
  • being inherited as an autosomal dominant trait with variable expressivity and incomplete penetrance

- otopalatodigital syndrome type 2 (OPD2)
- trisomy 21 (Down syndrome) (60%)
- normal population (18%)


- second finger clinodactyly
- fifth toe clinodactyly

Differential diagnosis

- camptodactyly
- clenched hand