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Delayed Radial Nerve Palsy after Closed Reduction of a Pediatric Humeral Shaft Fracture.

ABSTRACT: Humeral shaft fractures are common in the United States and may be associated with radial nerve injuries due to their close anatomic relationship in the spiral groove. Most radial nerve palsies are found at presentation due to the initial trauma; however, they can present secondary to orthopaedic intervention following reduction. In this case report, we present a case of delayed radial nerve palsy in a pediatric patient that was identified four days after closed reduction and splinting which required open reduction, nerve exploration, and internal fixation. Fortunately, full motor and sensory recovery was observed at 6 weeks post-op. A unique aspect of this case is that immediate postreduction exam in the emergency department showed no signs of injury or entrapment of the radial nerve.

SUBMITTER: Runner R

PROVIDER: S-EPMC5763207 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

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Delayed Radial Nerve Palsy after Closed Reduction of a Pediatric Humeral Shaft Fracture.

Runner Robert R Whicker Emily E De Sayan S

Case reports in orthopedics 20171228

Humeral shaft fractures are common in the United States and may be associated with radial nerve injuries due to their close anatomic relationship in the spiral groove. Most radial nerve palsies are found at presentation due to the initial trauma; however, they can present secondary to orthopaedic intervention following reduction. In this case report, we present a case of delayed radial nerve palsy in a pediatric patient that was identified four days after closed reduction and splinting which req ...[more]

PMID: 29445558

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Project description:BACKGROUND:Although most humeral nonunions are successfully treated with a single procedure, some humeral nonunions are more difficult to heal and require multiple procedures. Current literature does not provide evidence describing how the prognosis for surgical repair in patients who develop humeral diaphyseal nonunions may be affected by initial operative versus nonoperative treatment. QUESTIONS/PURPOSES:The purpose of this study was to assess whether operative versus nonoperative treatment of acute humeral shaft fractures impacts outcome of subsequent repairs of humeral nonunions (NU) including the need for additional surgery and a comparison of pain relief (Visual Analogue Scale for pain) and functional outcome (Short Musculoskeletal Functional Assessment). METHODS:Thirty-four patients with humeral shaft nonunion were evaluated of which 15 patients had been treated operatively (OF), and 19 patients had been treated nonoperatively (NO) for their initial humerus shaft fracture. All patients underwent plating with autogenous bone graft or allograft ± bone morphogenic protein (BMP) 2 or 7 as their final NU repair surgery prior to healing. We compared functional outcome and pain for both cohorts and determined risk factors for requiring more than 1 nonunion repair surgery. RESULTS:The mean time of final follow-up was 14.7?±?10.4 months. Thirty-three of 34 NUs (97.1%) healed. Patients who underwent OF of their original fracture were more likely to require more than 1 NU repair surgery (66.7 vs. 0%, p?<?0.01). Of the 15 patients who underwent initial OF, 33.0% required 1 NU surgery, 33.0% required 2 NU surgeries, and 33.0% required 3 NU surgeries. Patients who underwent initial OF were more likely to require >6 months to achieve union (40.0 vs. 10.5%, p?=?0.04). At final follow-up, there was no difference in functional outcome or pain scores. Initial OF was the only independent predictor of needing more than 1 NU repair surgery (OR 70.1 CI 2.8-1762.3) to achieve healing. CONCLUSION:Humeral shaft nonunions following initial operative fixation of the index fracture is more resistant to achieving union when compared to nonunions forming after initial nonoperative treatment. When final healing is achieved, there is no difference in function or pain.

Dataset Information

Delayed Radial Nerve Palsy after Closed Reduction of a Pediatric Humeral Shaft Fracture.

Publications

Delayed Radial Nerve Palsy after Closed Reduction of a Pediatric Humeral Shaft Fracture.

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