A Nonhuman Primate Model to Evaluate Treatments for Long‐Gap Ulnar Nerve Injury

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A nonhuman primate model evaluates ulnar nerve regeneration after sural nerve autografting, suggesting significant recovery.

Ulnar nerve injury led to signs of ongoing regeneration at 6 months post-surgery, with notable functional recovery observed.
Electrophysiological assessments showed reduced nerve conduction velocity and CMAP amplitudes in injured ulnar nerves compared to controls.
Histological analyses indicated smaller axon diameters and thinner myelin sheaths in the regenerating nerves versus naïve controls.
The nonhuman primate model provides critical insights into ulnar nerve repair, emphasizing its importance in future nerve injury studies.

Shultz et al. (2025) studied this question.

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