Regional anaesthesia strategies for upper limb surgeries
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Transcript of Regional anaesthesia strategies for upper limb surgeries
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REGIONAL STRATEGIES FOR UPPER LIMB SURGERIES
PRESENTED BY Dr. GOPAN. G (FUGRA 2014)
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BIRD’S EYE VIEW
INTRODUCTION
ANATOMY OF SPINAL NERVE
BRACHIAL PLEXUS
NERVE SUPPLY TO DERMATOMES, MUSCLES AND BONES
STRATEGY – CLAVICLE, AROUND SHOULDER, UPPER ARM, AROUND ELBOW, FOREARM & HAND.
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INTRODUCTION
• “Doctors without anatomy are like moles.They work in the dark and the work of their hands are mounds”.
Tiedemann:Heidelberg,1781–1861
In a recent online poll, 94% of the public thought that doctors should have practical experience of real human anatomy
http://www.channel4.com/science/microsites/A/anatomy/
expectation and reality……
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How should anatomy be learnt?
• provide relevant anatomy at an appropriate level of detail to the stage in training.
• problem-based learning (PBL), rather than memory-based learning
• Article information:Ann R Coll Surg Engl. Mar 2007; 89(2): 104–107.
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Basics
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Schematic representation
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Bony relationship
T1T1
C7C7
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RELATION WITH SCALENE MUSCLES
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Relation with artery
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Relation with artery
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5 ROOTS
3 TRUNKS
3 ANT. DIV & 3 POST. DIV
3 CORDS
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SURGERY OF CLAVICLE / SHOUDER
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Dermatomal supply over the clavicle
Skin is supplied by the supraclavicular nerves arising from C3 & C4 roots can be blocked at the level of the superficial cervical plexus.
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Cadaver dissection
Supraclavicular nerves supplying skin over clavicle
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Muscles related to clavicle
Muscles to be anaesthetized 1.Subclavius. - nerve to subclavius from upper trunk. 2.Pectoral muscles. – M/L pectoral nerve from M/L cords 3.Deltoid. – Axillary nerve from posterior cord.4.Sternocleido mastoid. – sensory C3 & C4 / motor XI5.Trapezius. – sensory and motor from XI.
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Cadaver dissection
Spinal accessory nerve
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Osteotomal supply of clavicle
Supraclavicular nerveSupraclavicular nerve(C3,C4)(C3,C4)
Axillary nerve (C5, C6)Axillary nerve (C5, C6)
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Strategy for clavicle sx
ISB
SCPB
ISB
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Surgeries around shoulder joint & upper arm
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Dermatomal supply around shoulder
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Dermatomal supply of shoulder & upper arm
Laterally by Supero-lateral cutaneous nerve of arm ( Terminal branch of Axillary.N C5 -6)
Medially by ICBN & Medial cutaneous nerve of arm ( Branch form T2 & Medial cord) C8, T1, T2.
Posteriorly by posterior cutaneous nerve of arm ( Branch from Radial nerve) ( C5 to T1)
The dermatomal supply around the shoulder joint receives contribution from C5 to T2.
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A Little more about intercostobrachial nerve
• Intercostobrachial nerve arises from second intercostal nerve and courses through the superficial axilla to innervate skin of axilla and upper arm.
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Muscles related posteriorly
1) Latissimus dorsi- thoraco-dorsal nerve2) Teres major- lower subscapular nerve3) Levator scapulae- dorsal scapular nerve4) Rhomboid Major- dorsal scapular nerve5) Rhomboid minor- dorsal scapular
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Rotator cuff muscles
1) Supra-spinatus supplied by suprascapular nerve
2) Infra-spinatus –suprascapular nerve3) Subscapularis – subscapular nerve4) Teres minor- axillary nerve
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Muscles of upper arm
1) Biceps supplied by musculocutaneous nerve
2) Corocobrachialis- musculocutaneous nerve
3) Brachialis- musculocutaneous nerve
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Muscles on the posterior aspect of arm
Triceps supplied by radial nerve
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Osteotomal supply around shoulder joint
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Strategy for shoulder & upper arm surgery
Interscalene block
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Surgeries on lower arm and elbow
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DERMATOMAL SUPPLY LOWER ARM
ANTERIORANTERIOR POSTERIORPOSTERIOR
Laterally- inferior lateral brachial cutaneous nerve (Radial)Medially- medial brachial cutaneous nervePosteriorly- posterior brachial cutaneous nerve
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Muscles around elbow and lower arm
ANTERIORLY Biceps Brachialis POSTERIORLYTriceps – radial nerve
Musculocutaneous nerveMusculocutaneous nerve
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Osteotomal supply above elbow
Anteriorly supplied by1)Musculocutaneous nerve2)Radial nerve3)Median nerve
Median nerveMedian nerve
UlnarUlnarnervenerve
Posteriorly supplied by1)Musculocutaneous nerve2)Radial nerve3)Ulnar nerve
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Strategy for surgeries above elbow??
Supraclavicular block
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Surgeries below elbow/ forearm
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Dermatomal supply of forearm
Laterally supplied by lateral cutaneous nerve of forearm (Musculocutaneous)
Medially- medial cutaneous nerve of forearm (medial cord)
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Dermatomal supply of posterior forearm
Medially supplied by Medial cutaneous nerve of forearm (Medial cord)
Laterally by lateral cutaneous nerve of forearm (Musculocutaneous nerve)
Posteriorly by posterior cutaneous nerve of forearm (Radial nerve).
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Superficial muscles of forearm
1) Pronator teres- Median nerve2) Flexor carpi radialis- Median nerve3) Palmaris longus- Median nerve4) Flexor carpi ulnaris- Ulnar nerve5) Flexor digitorum superficialis- Median nerve
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Deep flexor compartment
1) Flexor digitorum profundus- Median + Ulnar
2) Flexor pollicis longus- Anterior interosseous branch of the median nerve
3) Pronator quadratus- Anterior interosseous branch of the median nerve
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Superficial extensor compartment
1) Brachioradialis- radial nerve2) Extensor carpi radialis longus-radial nerve3) Extensor carpi radialis brevis-posterior
interosseous nerve4) Extensor digitorum- posterior interosseous
nerve5) Extensor digiti minimi - posterior
interosseous nerve6) Extensor carpi ulnaris- posterior
interosseous nerve7) Anconeus- radial nerve
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Deep extensor compartment
1) Abductor pollicis longus- posterior interosseous nerve
2) Extensor pollicis longus- posterior interosseous nerve
3) Extensor pollicis brevis- posterior interosseous nerve
4) Extensor indicis- posterior interosseous nerve
5) Supinator- posterior interosseous nerve
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Osteotomal supply of forearm
Anteriorly supplied by Median nerve
Posteriorly supplied by Radial nerve
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Strategy for forearm/ both bones is……
AXILLARY BLOCK
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SURGERIES ON HAND
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POSTERIOR VIEWPOSTERIOR VIEW
Dermatomal supply of hand
Anteriorly supplied by
1)Ulnar nerve
2)Median nerve
3)Radial nerve
Posteriorly supplied by
1)Ulnar nerve
2)Median nerve
3)Radial nerve
Radial nerveRadial nerve
Anterior viewAnterior view
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Myotomal supply of hand
Thenar muscles except adductor pollicis & I & 2 lumbricals are supplied by Median nerve
Hypothenar muscles, Adductor pollicis, Interossei & 3,4 lumbricals are supplied by Ulnar nerve
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Osteotomal supply of hand
Anteriorly supplied by 1)Median nerve2)Ulnar nerve
Posteriorly supplied by1)Radial nerve2)Median nerve 3)Ulnar nerve
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REGIONAL STRATEGY FOR HAND SURGERY..
INDIVIDUAL NERVE BLOCKS
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BIBLIOGRAPHY
• Atlas of anatomy- Patrick W Tank• Gray’s anatomy• Netter’s atlas of orthopaedic anatomy• Snell’s clinical anatomy by regions• Atlas of regional anaesthesia- David brown• Peripheral nerve blocks- J. Chelly• Nysora.com
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