Stepwise Percutaneous Leverage Technique to Avoid Posterior Interosseous Nerve Injury in Pediatric Radial Neck Fracture

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Abstract

Objectives:

To introduce a stepwise percutaneous leverage technique to avoid posterior interosseous nerve (PIN) injury in pediatric patients with radial neck fractures and to evaluate the clinical outcome and the predisposing factors affecting the outcome.

Design:

Retrospective case series study.

Setting:

University level 1 trauma center.

Patients:

Thirty-four children with a radial neck fracture, who were treated using a stepwise percutaneous leverage technique, were included in the study.

Intervention:

The radial head fragment was reduced by pulling the first Steinmann pin proximally as a lever. Then, the kinked soft tissue was released by removal of the Steinmann pin with buttressing the radial head by the operator's thumb. The second Steinmann pin was inserted into relaxed soft tissue for fixation of the radial head.

Main Outcome Measurements:

We used the Métaizeau classification as a radiologic result and Mayo Elbow Performance Score (MEPS) as a clinical outcome. Regression analysis was performed to identify the predisposing factors affecting the outcome.

Results:

There was no occurrence of PIN palsy. According to the Métaizeau classification, 23 cases were classified as excellent, 9 as good, 1 as fair, and 1 as poor. The average MEPS was 97.6 points. Based on the regression analysis, only the postoperative Métaizeau classification was confirmed as a risk factor of a relatively poor outcome.

Conclusions:

The stepwise percutaneous leverage technique can be considered a good option in the treatment of pediatric radial neck fractures, because it ensures excellent results by avoiding injury to soft tissues including the PIN.

Level of Evidence:

Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.

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