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. 2022 Jul;38(7):1241-1258.
doi: 10.1007/s00381-022-05538-z. Epub 2022 May 10.

Radiographic imaging modalities for perinatal brachial plexus palsy: a systematic review

Alisa O Girard  1 , Visakha Suresh  1 , Christopher D Lopez  1 , Stella M Seal  1 , Sami H Tuffaha  1 , Richard J Redett  1 , Jordan N Halsey  2   3
Affiliations

Radiographic imaging modalities for perinatal brachial plexus palsy: a systematic review

Alisa O Girard et al. Childs Nerv Syst. 2022 Jul.

Abstract

Purpose: Perinatal brachial plexus palsy (PBPP) has a wide spectrum of clinical symptoms that can range from incomplete paresis of the affected extremity to flaccid arm paralysis. Although there is a high rate of spontaneous recovery within the first two years of life, it remains challenging to determine which patients will benefit most from surgical intervention. The diagnostic and predictive use of various imaging modalities has been described in the literature, but there is little consensus on approach or algorithm. The anatomic, pathophysiological, and neurodevelopmental characteristics of the neonatal and infant patient population affected by PBPP necessitate thoughtful consideration prior to selecting an imaging modality.

Methods: A systematic review was conducted using six databases. Two reviewers independently screened articles published through October 2021.

Results: Literature search produced 10,329 publications, and 22 articles were included in the final analysis. These studies included 479 patients. Mean age at time of imaging ranged from 2.1 to 12.8 months and investigated imaging modalities included MRI (18 studies), ultrasound (4 studies), CT myelography (4 studies), and X-ray myelography (1 study). Imaging outcomes were compared against surgical findings (16 studies) or clinical examination (6 studies), and 87.5% of patients underwent surgery.

Conclusion: This systematic review addresses the relative strengths and challenges of common radiologic imaging options. MRI is the most sensitive and specific for identifying preganglionic nerve injuries such as pseudomeningoceles and rootlet avulsion, the latter of which has the poorest prognosis in this patient population and often dictates the need for surgical intervention.

Keywords: Brachial plexus birth palsy; CT myelography; Electromyography; MRI; Neonatal brachial plexus palsy; Perinatal brachial plexus palsy.

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