Ortho and Regional Anesthesia

Inter scalene block Brief history: First brachial plexus block was performed by William Steward Halsted in 1889 → by exposing the brachial plexus and using cocaine for blockade. Inter-scalene block was first described by Winnie in 1970. It often spares the lower branches of the plexus the C8 and T1 fibres innervating ulnar border of […]

 BRACHIAL PLEXUS ANATOMY Provides sensory and motor innervation to upper limb.   Formation– Constitutes anterior primary rami C5 – C8 along with T1. Pre-fixed plexus – C4 is involved Post- fixed plexus – T2 is involved Variations are often associated with cervical rib. Parts of the brachial plexus: Roots, Trunks, Divisions, Cords, Branches.   Roots: