Ape hand deformity

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Ape hand deformity is a deformity in humans who cannot move the thumb outside of the plane of the palm. It is caused by inability to oppose the thumb and the limited abduction of the thumb.^[1] It is also caused by damage to the median nerve.

It can occur with an injury of the median nerve either at the elbow or the wrist, impairing the thenar muscles.^[2]

Ape hand deformity is closely related to Median Nerve Palsy, which is usually caused by deep injuries to the arm, forearm and wrist area.

Ape Hand Deformity

[edit] See also

[edit] References

^ "Anatomy Tables - Hand". http://anatomy.med.umich.edu/musculoskeletal_system/hand_tables.html. Retrieved 2009-11-02.
^ "Gross Anatomy: THE BRACHIAL PLEXUS". http://www.upstate.edu/cdb/grossanat/limbs2.shtml. Retrieved 2009-11-02.

Nervous system pathology, PNS, somatic (G50–G64, 350–357)

Nerve, nerve root, plexus

Cranial nerve
disease

V (Trigeminal neuralgia, Anesthesia dolorosa) · VII (Facial nerve paralysis, Bell's palsy, Melkersson–Rosenthal syndrome, Parry–Romberg syndrome, Central seven) · XI (Accessory nerve disorder)

Radiculopathy,
plexopathy

brachial plexus (Brachial plexus lesion, Thoracic outlet syndrome) · Phantom limb

Mono-
neuropathy

Upper limb	median nerve (Carpal tunnel syndrome, Ape hand deformity) ulnar nerve (Ulnar nerve entrapment, Froment's sign, Guyon's canal syndrome, Ulnar claw) radial nerve (Radial neuropathy, Wrist drop, Cheiralgia paresthetica) long thoracic nerve (Winged scapula)

Lower limb	lateral cutaneous nerve of thigh (Meralgia paraesthetica) tibial nerve (Tarsal tunnel syndrome) plantar nerve (Morton's neuroma) superior gluteal nerve (Trendelenburg's sign) sciatic nerve (Piriformis syndrome)

General	Causalgia · Mononeuritis multiplex · Neuropathy (Neuralgia/Neuritis) · Nerve compression syndrome

Polyneuropathies/Polyradiculoneuropathy

HMSN	Charcot–Marie–Tooth disease · Dejerine–Sottas disease · Refsum's disease · Hereditary spastic paraplegia

Autoimmune/demyelinating	Guillain–Barré syndrome · Chronic inflammatory demyelinating polyneuropathy

Other	Alcoholic polyneuropathy