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
- ICD-10 G56.2
- ICD-11 8C10.1 Lesion of ulnar nerve