Ulnar Nerve Compression Syndromes

Ulnar neuropathies caused by mechanical compression of the nerve at any location from its origin at the BRACHIAL PLEXUS to its terminations in the hand. Common sites of compression include the retroepicondylar groove, cubital tunnel at the elbow (CUBITAL TUNNEL SYNDROME), and Guyon's canal at the wrist. Clinical features depend on the site of injury, but may include weakness or paralysis of wrist flexion, finger flexion, and ulnar innervated intrinsic hand muscles, and impaired sensation over the ulnar aspect of the hand, fifth finger, and ulnar half of the ring finger. (Joynt, Clinical Neurology, 1995, Ch51, p43)

Also Known As:

Ulnar Nerve Entrapment; Ulnar Nerve Compression; Entrapment Syndrome, Ulnar Nerve; External Compression Syndrome, Ulnar Nerve; Ulnar Nerve Entrapment Syndrome; Ulnar Nerve Entrapment at the Wrist; Ulnar Nerve External Compression Syndrome; Compression, Ulnar Nerve; Entrapment, Ulnar Nerve; Entrapments, Ulnar Nerve; Guyon Syndromes; Nerve Compression, Ulnar; Nerve Entrapment, Ulnar; Syndrome, Guyon; Syndromes, Guyon; Ulnar Nerve Compressions; Ulnar Nerve Entrapments; Guyon Syndrome

Nervous System Diseases: 14178
- Neuromuscular Diseases: 2005
  - Peripheral Nervous System Diseases: 11383
    - Mononeuropathies: 552
      - Ulnar Neuropathies: 216
        Ulnar Nerve Compression Syndromes: 68
    - Nerve Compression Syndromes: 269
      - Ulnar Nerve Compression Syndromes: 68
Wounds and Injuries: 176426
- Sprains and Strains: 444
  - Cumulative Trauma Disorders: 257
    - Ulnar Nerve Compression Syndromes: 68

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