Ulnar neuropathy at the elbow

Area of Science:

• Orthopedics
• Neurology
• Surgical Innovation

Background:

• Ulnar nerve (UN) compression at the elbow can be static or dynamic, often due to anatomical structures or nerve instability.
• Clinical diagnosis relies on identifying sensory/motor deficits, a pseudo-Tinel's sign, and provocative maneuvers.
• Electromyography and ultrasonography confirm ulnar neuropathy diagnosis.

Purpose of the Study:

• To outline the diagnostic process for ulnar neuropathy at the elbow.
• To detail conservative and surgical treatment options for ulnar nerve compression.
• To identify causes of treatment failure and indications for surgical revision.

Main Methods:

• Clinical evaluation including sensory and motor deficit assessment.
• Provocative tests and diagnostic imaging (ultrasonography, electromyography).
• Surgical interventions: in-situ decompression, anterior nerve transposition, medial epicondylectomy, and revision surgery.

Main Results:

• Conservative management (patient education, activity modification) is effective in early stages.
• Surgical treatment success depends on nerve stability; decompression for stable nerves, transposition/epicondylectomy for unstable nerves.
• Common causes of surgical failure include branch neuromas, persistent nerve instability, or residual compression, often necessitating revision surgery.

Conclusions:

• Accurate diagnosis of ulnar neuropathy is crucial for appropriate treatment selection.
• Surgical intervention, including revision, is indicated for persistent symptoms or nerve instability.
• Addressing nerve instability and compression points is key to successful surgical outcomes and preventing recurrence.