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Claw hand

Definition

Claw hand is a condition that causes curved or bent fingers. This makes the hand appear like the claw of an animal.

Alternative Names

Ulnar nerve palsy - claw hand; Ulnar nerve dysfunction - claw hand; Ulnar claw

Considerations

Someone can be born with claw hand (congenital), or they can develop it because of certain disorders, such as nerve injury.

Causes

Causes may include:

When to Contact a Medical Professional

If the condition is congenital, it is usually diagnosed at birth. If you notice claw hand developing, contact your health care provider.

What to Expect at Your Office Visit

Your provider will examine you and look closely at your hands and feet. You will be asked questions about your medical history and symptoms.

The following tests may be done to check for nerve damage:

  • Electromyography (EMG) to check the health of the muscles and the nerves that control the muscles
  • Nerve conduction studies to check how fast electrical signals move through a nerve

Treatment depends on the cause. It may include:

  • Splinting
  • Surgery to fix problems that may be contributing to the claw hand, such as nerve or tendon problems, joint contractures, or scar tissue
  • Therapy to straighten the fingers

References

Davis TRC. Principles of tendon transfers of median, radial and ulnar nerves. In: Wolfe SW, Hotchkiss RN, Pederson WC, Kozin SH, Cohen MS, eds. Green's Operative Hand Surgery. 7th ed. Philadelphia, PA: Elsevier; 2017:chap 31.

Sapienza A, Green S. Correction of the claw hand. Hand Clin. 2012;28(1):53-66. PMID: 22117924 www.ncbi.nlm.nih.gov/pubmed/22117924.

Review Date:9/22/2016
Reviewed By:C. Benjamin Ma, MD, Professor, Chief, Sports Medicine and Shoulder Service, UCSF Department of Orthopaedic Surgery, San Francisco, CA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.

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Outcome Data

No data available for this condition/procedure.

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