Kirner Deformity: Causes and Treatment

Kirner deformity is the unsightly curving of the tip of the little finger towards the palm and thumb. The finger tip appears like a beak.

It is more common in young females (8 to 10 years of age). Both hands are usually involved.

Cause of this deformity includes

  • congenital (since birth)
  • frost bite
  • fracture and
  • infection of bone in little finger tip

It has been seen in the following syndromes

  • Turner syndrome
  • Silver syndrome
  • Cornelia de Lange syndrome

X rays can show the deformed bone.


  • no treatment for mild deformities
  • surgery for severe deformities

Frequently Asked Questions

Can the deformity recur after surgical correction?

No it can not recur after surgical correction if skeletal growth is complete.

But it can recur in skeletally immature patients after surgery, only if the finger sustains a fracture or develops an infection.

I hope the information provided was helpful. If you have any query you can ask me at the contact me page.

This page was last updated on 13th March 2009.

Other causes of finger pain...

Finger Fracture

Finger Amputation

Mallet Finger


Trigger Finger

Swan Neck Deformity

Boutonniere Deformity

Glomus Tumor


Bowlers Thumb

Thumb Dislocation

Go back from Kirner Deformity to Finger Joint Pain


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