Radial tunnel syndrome (RTS)
Written and reviewed by Dr Ibrahim Imam, Consultant Neurologist. Last reviewed .
Radial tunnel syndrome (RTS). It results from partial compression of the posterior interosseous nerve (PIN). Fully referenced neurology checklist.
Pathology
- It results from partial compression of the posterior interosseous nerve (PIN)
- It manifests only as pain
- This is no weakness or sensory loss
Causes of compression
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Clinical features: pain
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Assessments
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Differential diagnosis: causes of lateral elbow pain
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Magnetic resonance imaging (MRI): features
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Other investigations
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Treatment
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References
- Moradi A, Ebrahimzadeh MH, Jupiter JB. Radial tunnel syndrome, diagnostic and treatment dilemma. Arch Bone Jt Surg 2015; 3:156-162.
- Levina Y, Dantuluri PK. Radial tunnel syndrome. Curr Rev Musculoskelet Med 2021; 14:205-213.
- Ferdinand BD, Rosenberg ZS, Schweitzer ME, et al. MR imaging features of radial tunnel syndrome: initial experience. Radiology 2006; 240:161-168.
- Shim JW, Lee DH, Seo JM, et al. Magnetic resonance neurography in spontaneous radial neuropathy: an unexpectedly high rate of nerve constriction. Muscle Nerve 2026; 74:404-410.
