Magnetic resonance imaging for detecting root avulsions in brachial plexus birth injuries.

INTRODUCTION

We assessed the diagnostic accuracy of 3T magnetic resonance imaging in comparison with surgical exploration for detecting root avulsion in brachial plexus birth injuries.

METHODS

This retrospective cohort study describes a consecutive series of 18 infants with brachial plexus birth injuries born between January 2019 and May 2024 who had a surgical exploration of the plexus preceded by magnetic resonance imaging under the same general anaesthetic.

RESULTS

The overall diagnostic accuracy of magnetic resonance imaging for detecting root avulsion(s) of C5-T1 was 68%, with 67% sensitivity and 92% specificity. It has a 'good' diagnostic accuracy for detection of root avulsion, although only a 'sufficient' sensitivity.

CONCLUSION

Although useful, magnetic resonance imaging in its current form cannot be solely relied upon for clinical decision-making in brachial plexus birth injuries.

LEVEL OF EVIDENCE: IV.