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Ulnar neuropathy — Clinical Guidelines

Overview

Ulnar neuropathy at the elbow (UNE) is a common entrapment neuropathy characterized by symptoms such as diminished sensation in the fourth and fifth digits and pain in the medial elbow region, often resulting from mechanical compression or ischemia of the ulnar nerve.

Diagnosis

Clinical Symptoms: Diminished sensation in the ulnar nerve distribution (fourth and fifth digits) and medial elbow pain 3.

Recommended Tests: Neuromuscular ultrasound to measure ulnar nerve cross-sectional area (CSA) or diameter for accurate diagnosis and localization 1.

Electrophysiological Studies: Nerve conduction studies may be used to confirm diagnosis 4.

Pressure Assessment: Consider prolonged elbow flexion pressure as a risk factor 2 4.

Management

Conservative Treatment: Rest, avoidance of elbow flexion, and ergonomic adjustments 2 4.

Physical Therapy: May include exercises to relieve nerve compression 3.

Surgical Intervention: Indicated for persistent symptoms unresponsive to conservative measures; involves exploration and decompression of the ulnar nerve 3.

Specific Interventions: No specific drug classes or doses are highlighted in the abstracts.

Special Populations

Occupational Risk: Prolonged laptop use or computer work with elbow pressure may increase risk 2 4.

Sports Activities: Nordic skiing and prolonged bicycle riding can precipitate ulnar neuropathy 5 7.

Medical Procedures: Cryotherapy near the ulnar nerve at the elbow poses a risk 6.

Key Recommendations

Offer neuromuscular ultrasound measurement of ulnar nerve CSA or diameter to confirm UNE diagnosis and localize compression in symptomatic patients (Evidence: Moderate 1).

Consider ergonomic modifications and avoidance of prolonged elbow flexion in occupational settings to prevent UNE (Evidence: Moderate 2 4).

Explore surgical decompression for patients with persistent symptoms despite conservative management (Evidence: Expert opinion 3).

References

1 Shook SJ, Ginsberg M, Narayanaswami P, Beekman R, Dubin AH, Katirji B et al.. Evidence-based guideline: Neuromuscular ultrasound for the diagnosis of ulnar neuropathy at the elbow. Muscle & nerve 2022. link 2 Kuijer PPFM, van der Pas J, van der Molen HF. Work Disabling Nerve Injury at Both Elbows Due to Laptop Use at Flexible Workplaces inside an Office: Case-Report of a Bilateral Ulnar Neuropathy. International journal of environmental research and public health 2020. link 3 Carter GT, Weiss MD, Friedman AS, Allan CH, Robinson L. Diagnosis and Treatment of Work-Related Ulnar Neuropathy at the Elbow. Physical medicine and rehabilitation clinics of North America 2015. link 4 Andersen JH, Frost P, Fuglsang-Frederiksen A, Johnson B, Wulff Svendsen S. Computer use and ulnar neuropathy: results from a case-referent study. Work (Reading, Mass.) 2012. link 5 Fulkerson JP. Transient ulnar neuropathy from Nordic skiing. Clinical orthopaedics and related research 1980. link 6 Finelli PF. Ulnar neuropathy after liquid nitrogen cryotherapy. Archives of dermatology 1975. link 7 Eckman PB, Perlstein G, Altrocchi PH. Ulnar neuropathy in bicycle riders. Archives of neurology 1975. link

Ulnar neuropathy