APPLIED ANATOMY · PRIMARIES SURGERY

Brachial plexus → nerve-injury pattern after motorcycle RTA

8 decision points ~18 min Difficulty 4/5 Primaries

Setting

You are the trauma registrar reviewing a motorcyclist with an obvious upper-limb neurological deficit after a high-speed RTA. You use the case to teach applied brachial plexus anatomy to the Year-1 resident.

Patient

Mr K, 34-year-old boda-boda rider, was thrown from his bike with the head forced away from the shoulder. He has an adducted, internally-rotated right arm with the forearm pronated and elbow extended. Sensation is reduced over the lateral upper arm. Hand grip is intact.

Reference stack

Bailey & Love 28e Ch 34 · Last's Anatomy 12e · Sabiston 21e Ch 68

Start cascade →

You'll be asked to decide what happens next at each step. There's no timer — take your time. The correct answer + evidence-anchored rationale is revealed after each choice.