Tough shoulder dislocation? Enormous deltoid abscess? That copatation splint not working so great for your elderly patient with a proximal humerus fracture?
The interscalene block shines in all these scenarios. With some practice and good understanding of the anatomy, this block can be safely done in just a few minutes.
It is surprising how shallow this block is. In many patients the C5 root is less than 1 cm beneath the skin. This allows for great visualization.
We have reduced a shoulder with as little as 5mL of lidocaine placed just underneath the prevertebral fascia over the c5 and c6 roots.