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Cubital tunnel syndrome

Syndroma canalis cubitalis · Syndrom kubitálního tunelu

What it is

The ulnar nerve — the 'funny bone' — squeezed at the elbow, often by long hours with the elbow bent; the second commonest trapped nerve after carpal tunnel.

Symptoms & signs

  • Numbness and tingling in the ring and little fingers
  • worse at night with the elbow bent
  • clumsy grip
  • weak pinch
  • wasting of the hand muscles in late cases

🚩 Get help if…

  • see a doctor soon Wasting of the hand muscles or a clawed ring and little finger
  • see a doctor soon Constant numbness of the little finger
  • see a doctor soon Weak grip or clumsy fingers
  • see a doctor soon Symptoms after an elbow injury

Where it strikes

Medical treatment

  • Nerve conduction studies
  • night splint keeping the elbow straighter
  • stop leaning on the elbow
  • surgical decompression or transposition of the nerve

Natural & lifestyle

  • Nerve-gliding exercises
  • ergonomic phone and desk use
  • elbow pad

Emerging & experimental

  • Ultrasound-guided hydrodissection
  • endoscopic release

Alternative, off-label & anecdotal

Approaches used outside the guidelines, with what their supporters report and what testing has found so far.

  • Vitamins B6 and B12 — used for nerve symptoms; trials in entrapment disagree mixed evidence
  • Acupuncture — small studies early / small studies
  • Kinesio taping — anecdotal anecdotal / traditional

ICD codes