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Dr Bishoy Voice Shots > Orthopedic > Flashcards

Orthopedic Flashcards

1
Q

Muscles innervated by musculocutaneous nerve

A

BBC

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2
Q

Root of radial nerve

A

C5-T1

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3
Q

Muscles supplied by main radial nerve and by posterior interosseous nerve( PIN)

A

BEAT
Brachioradialis
Extensor Carpi radialis (compartment 2)
Anconeus
Triceps
PIN
Extensor compartments 13456

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4
Q

Sensory loss of radial nerve

A

Coin in snuff box

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5
Q

Sensory loss of radial nerve

A

Coin in snuff box

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6
Q

State of metacarpophalangeal joints if radial nerve is cut in axilla

A

Loss of extension

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7
Q

State of interphalangeal joints if radial nerve is cut in axilla

A

Can be extended by action of lumbricals(median and ulnar nerve)

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8
Q

Nerve supply of long head of triceps

A

Axillary+radial

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9
Q

Nerve of all forearm flexors

A

All by median
Extension
Except flexor Carpi ulnaris and material half of flexor digitorum profunda

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10
Q

Muscles supplied by ulnar nerve

A

MAFIA
Medial 2 lumbricals
Abductor digiti minimi,opponens d.minimi
Flexor digiti minimi,
Flexor digitorum profunda (medial 2)
Interossei
Adductor pollicis

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11
Q

Nerve to pronator teres

A

Median nerve

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12
Q

Root of ulnar nerve

A

C8-T1

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13
Q

Nerve passing beneath flexor Carpi ulnaris along it

A

Ulnar nerve

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14
Q

Relation of ulnar nerve to flexor retinaculum

A

Superficial to it
Within Guyon’s canal

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15
Q

Epicondyles and redial and ulnar nerve

A

R anterior to epicondyle then goes Dorsal
U posterior to epicondyle then goes Volar

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16
Q

Basis of ulnar paradox

A

More PROXIMAL injury causes simultaneous paralysis of flexor digitorum profunda

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17
Q

Nerve to
Adductor pollicis
Abductor pollicis brevis
Abductor pollicis Longus

A

Ad. Po. Ulnar
Ab. Po. Br. Median
Ab. Po. Lo. PIN (Radial)

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18
Q

Nerves behind marriage stability

A

Ulnar+Median+Radial

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19
Q

Sign of Erb’s palsy and injured nerve

A

WAITER’S tip
Nerve root injury of C5 C6 by hyper lateral extension of neck
*Paralysis of
Deltoid
Biceps
Brachialis
Coracoacromial
*Causing
Weakness of shoulder abduction (not completely lost because other adductor are intact and patient learns swinging of arm)
Loss of elbow flexion and week supination
Sensory loss over lateral aspect of arm

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20
Q

Klumpke’s palsy

A

Root lesion of C8,T1 by hyper abduction of shoulder joint
(ulnar paralysis) There is sympathetic interruption with absent of sweating
Features
Claw hand
Wrist drop

21
Q

Cervical sympathetic nerve injury may cause

A

Horner’s syndrome maybe associates with T1 lesion
Ipsilateral -
Ptosis
Miosis
Anhydrosis

22
Q

Relation of median nerve to brachial artery

A

LAM
Lateral
Anterior
Medial

23
Q

Only thenar muscle supplied by ulnar nerve

A

Adductor pollicis

24
Q

Affected part of spinal cord by poliomyelitis

A

Anterior horn segment wise, so an example like—total deltoid paralysis
So no sensory loss

25
Muscles attaching scapula to chest wall and maintaining normal scapular control
Trapeziu Levator scapulae Rhomboid major& minor Pectoralis minor Omohyoid Serratus anterior (long T. C5-7 injury from axillary node biopsy, radical mastectomy, sports stretch injury,viral infection causing winging) Latissimus dorsi (mild winging of scapula with weakness of shoulder abduction)
26
Global muscle wasting of hand
Damage to both median and ulnar nerve with damage to T1 nerve root Syringomyelia,motor neuron disease
27
Structures superficial to flexor retinaculum
From medial to lateral Ulnar nerve Ulnar artery Palmaris Longus
28
Structures inside flexor retinaculum other than tendons
Only median nerve
29
Termination of ulnar artery
After passing superficial to flexor retinaculum it divides into superficial and deep volar arterial arches
30
Relation of ulnar artery
Less on— BRACHIALIS Flexor digitorum profundus Deep to— Pronator teres (also median nerve runs below it) Flexor Carpi radialis Palmaris Longus
31
What separates ulnar artery from median nerve
Ulnar head of pronator teres
32
What separates ulnar artery from ulnar nerve
Ulnar head of pronator teres
33
Relation of radial nerve and radial artery
There is no relation between them apart from name
34
Root of radial nerve
C5-T1 As it arrives from posterior cord
35
Artery twisted to radial nerve and where
Profunda brachii Along radial groove of humerus
36
At what level of ulnar nerve injury will cause more severe manifestation 1. Behind medial epicondyle 2. At Guyon's canal
At Guyon's canal—more clawing & inability to put the hand in writing position Due to ulnar paradox (the upper the injury the more loss of small branches leading to paralysis of flexor digiti profunda)
37
Only good thing about ulnar paradox
Distal lesion may produce more prominent manifestation but as injured nerve is of smaller diameter so it'll heal comparatively faster Rate of nerve regretting is 1mm per day
38
Only good thing about ulnar paradox
Distal lesion may produce more prominent manifestation but as injured nerve is of smaller diameter so it'll heal comparatively faster Rate of nerve regretting is 1mm per day
39
Muscles having motor supply purely from main radial nerve
Brachioradialis Extensor Carpi radialis longus and brevis
40
Content of Guyon's canal
Guyon's canal protects the ulnar artery and nerve as they travel from the wrist to the hand.
41
Mnemonic for extensor compartments of wrist 3—2—1
Ex.Po. Ex.Ca.Ra. Ex.Po. Ab.Po. Longus Brevis Longus Brevis Longus (3) ( 2 ) ( 1 )
42
Use of extensor Carpi radialis longus tendon
In tension graft Because this muscle is less used
43
Relation of extensor compartments with anatomical snuff box
Medial border formed by 3rd compartment Lateral border formed by 1st compartment Floor formed by 2nd compartment
44
Supply of flexor Carpi radialis
Median nerve
45
Supply of extensor Carpi ulnaris
Posterior interosseous branch of radial nerve
46
Zones of extensor side of hand
9 Odd zones are joints starting from distal
47
Zones of flexor side of hand
5 zones Starting form distal end 1. From insertion of FDS to tip of finger 2. From FDS insertion to A2 pulley 3. From A2 pulley to the bugging of carpal tunnel 4. Carpal tunnel 5. Proximal to carpal tunnel #There are flexor tendon pulleys in the fingers that are named A1-A5, and consists of annular ligament pulleys, and cruciate pulleys named C1-C3 i.e. The flexor tendon pulley system. The thumb only has two pulleys that are described as A1 and A2.
48
Causes of capital tunnel syndrome and symptoms and test
Myxedema Rheumatoid arthritis Acromegaly Multiple myeloma Nephrotoxic syndrome Amyloidosis DM Gout Pseudogout Alcoholism Wrist fracture Females over forty are more prone Pregnancy may predispose Symptom Loss of grip control Due to loss of function of opponens pollicis Test Phalen test Tinel test

Dr Bishoy Voice Shots (10 decks)

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