Anatomy - anatomy Flashcards

1
Q

What vessel sits below quadratus femoris?

A

Medial femoral circumflex artery ascending branch (posterosuperior and posteroinferior retinacular) lateral epiphyseal branch most importantThis is most at risk with posterior approach to acetabulum

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2
Q

What nerve is most damaged w Primary THA?

A

Peroneal division of sciatic, more lateral.

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3
Q

What is the only muscle supplied by peroneal division above fibular head?

A

Short head of biceps femoris

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4
Q

What is POPS IQ?

A

Lateral to medial nerves exiting below piriformis Pudendal, to obturator internus, posterior femoral cutaneous, sciatic, inferior gluteal, to quadratus femoris

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5
Q

What nerve is at risk during percutaneous iliosacral screw placement?

A

L5 nerve root

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6
Q

Which two nerves leave the greater and return via the lesser sciatic notch?

A

Pudendal, nerve to obturator internus

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7
Q

Femoral triangle borders? Contents?

A

Sartorius (lat), inguinal ligament (sup), pectineus (med)Floor is the iliacus, psoas, pectineus, adductor longusFem nerve, art, vein, lymphatics

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8
Q

What spine condition manifests as hip pain? Why?

A

Potts disease - tuberculosis spondylitisIlliopsoas comes off the lumbar spine

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9
Q

Obturator nerve splits into anterior and posterior divisions. What do they supply? When can they be injured by a retractor?

A

Ant - obturator externus, pectineus, adductor longus, brevis, gracilis, sensation to medial thighPost - obturator externus, adductor brevis, upper part of adductor Magnus Retractor placed behind TAL

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10
Q

Aorta divides into common iliac arteries at what lumbar vertebrae?

A

L4

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11
Q

Internal Iliac branches? What one is at risk w anterior inferior acetabular screw insertion?

A

(I Love Going Places In My Very Own Underwear)I:iliolumbar arteryL:lateral sacralarteryG:gluteal (superiorandinferior)arteriesP:(internal)pudendal arteryI:inferior vesicle(uterinein females)arteryM:middle rectalarteryV:vaginalarteryO:obturatorarteryU:umbilicalarteryAt risk in antero-inferior screw placement: Obturator nerve, artery, vein

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12
Q

What’s the corona mortis?

A

Anastomosis of inferior epigastric branch of external iliac and obturator vessels n obturator canal

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13
Q

External iliac continues as femoral artery. What quadrant of screws puts it at risk?

A

Anterior superior

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14
Q

Cruciate Anastomosis is made up of?

A

Ascending branch of first perforating, descending branch of inferior gluteal artery, transverse branch of the medial and lateral circumflex femoral Lies at inferior border of quadratus femoris

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15
Q

Quadrangular space borders?

A

Medial: long head of tricepsLateral: humeral shaftSuperior: teres minorInferior: teres major

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16
Q

Quadrangular space contents:

A

Axillary nervePosterior humeral circumflex

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17
Q

Triangular space borders?

A

Inferior: teres majorLateral: long head of tricepsSuperior: lower border of teres minor

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18
Q

Triangular space content?

A

Scapular circumflex artery

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19
Q

Triangular interval borders?

A

Superior: teres majorLateral: lateral head of triceps or humerusMedial: long head of triceps

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20
Q

Triangular interval contents?

A

Profunda brachii artery, radial nerve

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21
Q

Posterior lateral corner of knee structures?

A

APPPLL Arcuate ligament, Popliteus, Posterolateral capsule, LCL, Popliteofibular ligament, Lateral head of gastrocnemius

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22
Q

Name the 3 primary and secondary stabilizers of the elbow.

A

Primary: 1. Ulnohumeral joint 2. MCL 3. LCLSecondary: 1. Radial head 2. Joint capsule 3. The common flexor and extensor origins

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23
Q

Median Nerve sites of compression?

A

Supracondylar process and ligament of struthersLacertus FibrosisPronator teres: Pronator SyndromeSubliminus Bridge

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24
Q

AIN sites of compression?

A

Pronator teresFDSABerrrant veselsAccessory muscles: Gantzer’s accessory FPL muscle

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25
Q

What is the Martin-Gruber Anastomosis?

A

Axons leaving median nerve or ain to join ulnar nerve

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26
Q

Ulnar nerve compression sites? 10!

A

Ligament of struthers (edit: I don’t think this is one - median nerve?)Medial intermuscular septumArcade of struthersHypertrophied medial triceps muscle Cubital tunnelArcuate ligament of OsborneTwo heads of FCUAnconeus epitrochlearisLigament of Spinner (aponeurosis between FDS and FCU)Deep flexor pronator aponeurosis

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27
Q

What is the interval deep and superficial for the Volar henry approach?

A

Superficial - BR (radial) and PT (median) - Proximally - BR (radial) and FCR (median) - DistallyDeep - Supinator, FDS, FDP, Pronator QuadratusDanges - PIN, Superficial radial nerve, Radial A

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28
Q

What is the internervous plane of the Thomson approach?

A

Extension of Kaplan - posterior approachBetween ECRB (radial nerve) and EDC (PIN)

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29
Q

Name 5 ligamentous components of the ankle syndesmosis.

A

AIFTL, PITFL, IOL, IOM, Inferior transverse ligament - distal part of PITFL

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30
Q

Which accessory bone is located posterior to the talus? Which tubercle of the posterior process of the talus is this associated with?

A

Os trigonum - lateral tubercle

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31
Q

What is the knot of henry?

A

FDL and FHL cross

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32
Q

How many compartments are in the foot?

A

9

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33
Q

Which tendon passes immediately deep to sustentaculum tali?

A

FHL

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34
Q

From which nerve does Baxter’s nerve originate?

A

First branch of the lateral plantar nerve

35
Q

Name the interval for the posterolateral approach to the ankle?

A

Peroneal and FHL

36
Q

Which structure does the sural nerve run with? Which side?

A

Short saphenous is lateral

37
Q

Which two structures combine to form the sural nerve?

A

Medial and lateral sural nerve

38
Q

Which spine pedicle has the smallest pedicle?

A

T4

39
Q

Artery of Adamkiewicz: what side, what levels?

A

Left T8-10

40
Q

Which facet is anterior in the spine?

A

Superior facet of the caudal vertebrae

41
Q

What is the main motor pathway in the spine?

A

Lateral corticospinal

42
Q

Occiput is thickest in what location?

A

At level of nuchal line, approximately 2cm in either direction

43
Q

Three fascial levels of the Smith Robinson approach?

A

1) Deep cervical fascia2) Pretracheal fascia 3) Prevertebral fascia

44
Q

Cutoff for Jefferson fracture?

A

6.9mm

45
Q

Cutoff for PADI? (what does it stand for)

A

Posterior atlanto-dens interval and space available for cord describe the same thing.

46
Q

What are the contents of Adductors/Hunter canal?

A

Femoral artery and vein, branches of femoral nerve (saphenous and nerve to vastus medialis)

47
Q

What is the cruciate anastomosis?

A

Inferior gluteal artery, lateral and medial circumflex artery and first perforating branch of profunda femoris

48
Q

What bands of ACL and PCL are tight in flexion?

A

Anterior bands (PCL - AL, ACL - AM)

49
Q

Where does the MPFL insert on the patella?

A

Superior medial

50
Q

In an isolated posterolateral corner injury the most accurate test is _____ and the major finding is _____.

A

Dial Test, greater than 15 degrees increase of external rotation at 30 degrees flexion

51
Q

What is the interval for the posterior approach of the shoulder?

A

Infraspinatus (suprascapular) and Teres Minor (axillary)

52
Q

What are the 4 preclavicular branches of the brachial plexus?

A

Dorsal scapular, long thoracic, suprascapular, nerve to subclavius

53
Q

What is the innervation of brachialis?

A

Musculocutaneous, Radial

54
Q

What is the innervation of Trapezius?

A

Accessory Nerve (XI)

55
Q

Describe the rotator interval

A

Triangular portion of capsule between supraspinatus and subscapularis tendons, reinforced by SGHL and CHL

56
Q

5 attaches to the coracoid?

A

Conoid, trapezoid, coracobrachilis, short head of biceps, pectoralis minor

57
Q

What is the primary static restraint against anteroinferior dislocation of GH join in 90 degrees abduction and external rotation?

A

AIGHL

58
Q

What are the boundaries of the posterior triangle of the neck?

A

SCM, Trapezius, Clavicle

59
Q

Medial winging of the scapula?

A

Long thoracic nerve (serratus anterior)

60
Q

Snuff box: borders, contents?

A

Palmar APL, and EPB.Dorsal EPL.Contains fat, radial artery, wrist capsule, sensory branch of radial nerve)

61
Q

What dorsal compartment does the the articular branch of PIN lie within?

A

4th dorsal compartment

62
Q

Extensor Compartments, Contents and Pathology.

A
  1. APL, EPB - DeQuervain’s Tenosynovitis2. ECRL, ECRB - Intersection Syndrome3. EPL - Drummer’s wrist, Traumatic rupture with distal radius fracture4. EIP, EDC (PIN) Extensor Tenosynovitis5. EDM - Vaughn - Jackson Syndrome6. ECU - Snapping ECU
63
Q

Superficial branch of radial nerve - what inflammatory condition affects this nerve?

A

Radial neuritis (Wartenberg’s syndrome) - tight watch - compression between BR and ECRL

64
Q

What is the TFCC complex made of?

A

Articular discDorsal and Volar radioulnar liagements (both sup. and deep)Meniscus homolog (Disc-carpal ligaments)Ulnar collateral ligamentSheath of ECU

65
Q

DRUJ Stabilizers 4 extrinsic, 4 intrinsic

A

Extrinsic 1. ECU Tendon 2. ECU subsheath 3. Pronator Quadratus 4. IOMIntrinsic 1. Bony Contact 2. Superficial radioulnar ligament 3. Deep Radioulnar ligaments - AKA Ligamentum subcruentum - Most important for providing rotation/translation guidance

66
Q

Scapholunate ligament - has 3 components and what is the ligament of testut?

A

Dorsal (strongest), Palmar, ProximalLigament of Testut - Radioscapholunate ligament - is actually a NV bundle, no contribution to carpal stability

67
Q

Volar Palmar Ligaments of the carpus. Extrinsic?

A

Extrinsic 1. RSC 2. Long radiolunate 3. Short Radiolunate 4. RSL 5. UL 6. UT

68
Q

Carpus ligaments dorsal extrinsic?

A

DRC, DICDoral radiotriquetralScapholunate interosseous liagment (Resists DISI)Lunotriquetral interosseous ligament (Resists VISI)

69
Q

Radial artery - which arch? Therefore Ulnar is?

A

Deep palmar archSuperficial palmar arch

70
Q

What makes up the extensor hood?

A

EDC tendonsDI and PI tendon LumbricalsCentral Tendon Oblique Retinacular ligamentsSagittal bands

71
Q

Swan neck?

A

Hyper extension at PIP Mallet finger can cause this Stretching of transverse retinacular ligamentDorsal subluxation of lateral bands, increase force through PIP

72
Q

Boutonniere Deformity

A

Hyperflexion at PIP-Central slip rupture, hyper extension of DIP -Volar subluxation of lateral band - PIP hyper flexion- Triangular ligament rupture subluxation of lateral bands - hyperflexion of PIP and increased force through DIP

73
Q

What is the last muscle innervated by the median nerve?

A

APB is last muscle innervated

74
Q

Ulnar nerve what is last muscle innervated?

A

2nd MCP abduction, 1st dorsal interosseous is last muscle innervated

75
Q

Wartenberg’s sign

A

D5 abduction upon extensionBoth ADM and EDQ insert on abductor tubercle on prox phalanx. Usually their function is counterreacted by 3rd palmer interosseous muscle

76
Q

Froment’s Sign

A

Unable to work adductor policis so use AIN to assist in holding the object between 1st and 2nd digits

77
Q

Parona’s space?

A

in forearmBetween FDL/FPL and PQ

78
Q

3 potential spaces in the hand

A

Midpalmer spaceThenar spaceHypothenar space

79
Q

3 nerves emerge lateral to psoas:

A
  1. Illiohypogastric nerve2. Ilioinguinal nerve3. LFCN
80
Q

2 nerves emerge medial to psoas

A
  1. Obturator nerve2. Lumbosacral trunk
81
Q

Nerve emerging between psoas and iliacus?

A

Femoral nerve

82
Q

Nerve piercing and then lying anterior to psoas:

A

Genitofemoral nerve

83
Q

list all the muscles with dual innervation and name the two nerves for each

A

brachialis (radial, MSC)flexor pollicis brevis (ulnar, median)pec major (lateral and medial pectoral)adductor magnus (obturator, sciatric)lumbricals of the hand (median, ulnar)flexor digitorum profundus (AIN, ulnar)pectineus (femoral, rarely also obturator)