The ultrasound diagnosis of posterior shoulder dislocation associated with Erb's palsy

Area of Science:

• Pediatric orthopedics
• Medical imaging
• Neonatal care

Background:

• Erb's palsy, a common birth injury, can be associated with posterior dislocation of the humeral head.
• Diagnosis of posterior dislocation can be challenging and often delayed, potentially leading to complications.

Observation:

• A case study involving an infant diagnosed with Erb's palsy.
• Initial plain radiographs were non-diagnostic for humeral head dislocation.
• High-resolution ultrasound was employed for further evaluation.

Findings:

• High-resolution ultrasound successfully identified posterior dislocation of the humeral head.
• Ultrasound proved to be a safe, quick, and reliable diagnostic tool in this case.

Implications:

• Early utilization of ultrasound in infants with Erb's palsy is recommended.
• Ultrasound can aid in the timely exclusion of posterior dislocation, optimizing patient management.
• This highlights ultrasound's value in diagnosing subtle orthopedic injuries in neonates.