Predictors of traumatic nerve injury and nerve recovery following humeral shaft fracture.

Journal of Shoulder and Elbow Surgery
Vahid EntezariHeather A Vallier

Abstract

Nerve palsy is common after humeral shaft fracture, with the radial nerve being the most commonly injured nerve. Isolated nerve injuries usually recover spontaneously, and operative intervention is rarely indicated. Our goal was to study the predictors of traumatic nerve injury and recovery in a large cohort of patients with humeral shaft fractures. A total of 376 patients with humeral shaft fracture, including 96 patients with documented traumatic nerve palsy and 280 with intact neurovascular examination on presentation, were retrospectively included in the study. The primary outcome was incidence of a traumatic nerve palsy, and the secondary outcome was nerve recovery. Nerve palsy was present in 96 patients (25.5%) at the time of injury. Radial nerve was the most commonly injured nerve (93.6%), followed by the ulnar (5.1%) and axillary (1.2%) nerves. Seventeen patients (17.7%) had multiple nerves palsies. A multivariable regression analysis revealed that the concomitant vascular injury (odds ratio [OR] 52, 95% confidence interval [CI] 5.6-480.6), distal one-third fractures (OR 6.3, 95% CI 2.7-14.7), and middle one-third (OR 2.8, 95% CI 1.2-6.5) vs. proximal fractures, open fracture (OR 2.1, 95% CI 1.1-4.4), and high-energy tr...Continue Reading

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