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Int Derangement Flashcards

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1
Q

% of OCD involving the bone

A

75%

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2
Q

Loc of dorsal patellar defect

A

Superolateral

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3
Q

Loc of OCD in talar dome

A

Mid 1/3rd of lateral border or Post 1/3rd of medial border

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4
Q

Effusion in the first few hours is usually d/t

A

hemarthrosis; Non-bloody ones take 12-24 hours

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5
Q

Stress reaction on tibia

A

Post medial cortex

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6
Q

SCFE prognosis by type

A

I to III - Good
IV - Gaurded
V - Poor d/t vascular supply damage

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7
Q

MVMT of the femoral epiphysis in SCFE

A

Postero-infero-medial

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8
Q

Des juvenile Tillaux Fx

A

isolated vertical fx of the lateral portion of the distal tibia

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9
Q

CRITOE

A 
Capitullum - 1 YOA
Radial head - 3
Internal - 5
Trochlea - 7
Olecranon - 9
External - 11
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10
Q

MRI appearance of DOMS is similar to

A

Grade 1 Sprain of muscle

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11
Q

MC muscle to herniate

A

Tibialis anterior

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12
Q

What is found in the urine of a patient with rhabdomyolysis

A

Myoglobulin

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13
Q

Metaphyseal avulsion Fx, abN copper metabolism and blue sclera

A

Menke syndrome (Kinky hair syndrome)

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14
Q

2 MC anterior GHJ dislocation

A

MC - Subcoracoid, 2nd MC - subglenoid

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15
Q

Humeral position with posterior GHJ dislocation

A

Internal

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16
Q

Rockwood IV AC

A

Dis clav goes posterior into the trap

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17
Q

Rockwood V AC

A

Superior dislocation with with deltoid and trap rupture

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18
Q

Rockwood VI AC

A

Clavicle goes below the acromion/coracoid

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19
Q

Which condyle is MCly affected in a condylar fx

A

Lateral

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20
Q

MC epicondyle to Fx

A

Medial

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21
Q

Def Posadas Fx

A

Eponymous name for a transcondylar fx at the elbow, with the distal fragment translating anteriorly

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22
Q

Monteggia BADO 1 Fx

A

MC (60%) Fracture of the proximal or middle third of the ulna with anterior dislocation of the radial head (most common in children and young adults)

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23
Q

Monteggia BADO 2 Fx

A

3nd MC Fracture of the proximal or middle third of the ulna with posterior dislocation of the radial head (70 to 80% of adult Monteggia fractures)

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24
Q

Monteggia BADO 3 Fx

A

2nd MC (20%) Fracture of the ulnar metaphysis (distal to coronoid process) with lateral dislocation of the radial head

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25
Monteggia BADO 4 Fx
Fracture of the proximal or middle third of the ulna and radius with dislocation of the radial head in any direction
26
Mason type 1
Non-displaced radial head Fx
27
Mason type 2
radial head fracture with >2mm displacement or angulation
28
Mason type 3
Comminuted, displaced radial head fx
29
Mason type 4
radial head fx with elbow disloaction
30
Normal Scapholunate angle and what is it in DISI
30-60 degrees and >70 in DISI
31
Normal capitolunate angle and what is it in VISI
<30 and >30 in VISI
32
TFCC palmar classification explained
Class 1 = traumatic | Class 2 = Degenerative
33
Displacement of the PROXIMAL fragment position with femoral diaphysis Fx
Ab, Flex, ER
34
Displacement of the DISTAL fragment position with femoral diaphysis Fx
Medial
35
MC tibial plateau Fx and what is the classification
isolated lateral (75-80%), Schatzker (Type 2 is MC)
36
Des Powers ratio
ids C0/C1 disassociation. Basion-Post arch/Opisthion to anterior arch. ratio should be ~0.77. >1.15 = disassociation
37
MC Fx of C2
Dens Type 2
38
2nd MC fx of C2
pars
39
MC location of facet dislocation
C6-7
40
TT for pillar view
35 degrees caudad
41
Spondylolisthesis Type 1
Dysplastic/congenital
42
Spondylolisthesis Type 2
Isthmic/fatigue Fx
43
Spondylolisthesis Type 3
Degenerative
44
Spondylolisthesis Type 4
Traumatic (other than pars)
45
Spondylolisthesis Type 5
pathologic
46
Spondylolisthesis Type 6
Iatrogenic
47
Top 2 MC Spondylolisthesis Types
Types 2 and 3
48
3 anatomic types of carpal instability
1. lateral (b/w scaphoid and lunate) 2. Medial (b/w triquetrum and lunate or triquetrum and hamate) 3. Proximal (b/w radiocarpal)
49
Tendons involved in dequervain syndrome
AB PL and Ex PB
50
GCTTS have calcification?
No, hemosiderin deposition
51
Yoyo string appearance
UCL with stener lesion
52
magic angle phenomenon is seen on what pulse
T1
53
MC location for glenoid labrum AbN
11-3 oclock
54
Buford complex
MGHL is cord-like and no anterosuperior glenoid labrum
55
Anterior humeral instability is related to which ligament
Ant Band of IGHL
56
Def Perthes
Ant labrum is lifted off with sleeve of periosteum (not torn)
57
Def ALPSA
Anterior labroligamentous periosteal sleeve avulsion. With disruption of the periosteum
58
SLAP lesions 1 - 4
1 - Degenerative fraying 2 -MC. Separation of the superior glenoid labrum and LHBT 3 - Bucket-handle tear without extension into the LHBT 4 - Bucket-handle tear with extension into the LHBT
59
SLAP 5 -10
type V: anterior-inferior Bankart lesion in continuity with a type II SLAP lesion type VI: combination of a type II SLAP lesion and an unstable labral flap either anterior or posterior type VII: type II SLAP lesion with extension to the capsule and the middle glenohumeral ligament (MGHL) type VIII: type IIB SLAP lesion with posterior labral extension type IX: complete or almost complete circumferential detachment of the labrum from the glenoid type X: superior labral tear in combination with extension to the rotator cuff interval or the superior glenohumeral ligament or the coracohumeral ligament
60
Meniscal cysts involve the medial or lateral
medial meniscus: posterior aspect of the posterior horn lateral meniscus (More common): anterior/anterolateral aspect of the anterior horn or the body.
61
Discoid meniscus involves the medial or lateral
Medial
62
MC loc of meniscal ossicle
Post horn of medial meniscus
63
Insall-Salvati ratio
Patellar dislocation. Length of the patella compared to the patellar ligament N= 0.8-1.2
64
Cruciate ligaments are intra/extra-synovial
extrasynovial, but intraarticular So it the proximal LHBT
65
peroneal split tendon affects which tendon
Peroneus brevis
66
Weakest ankle ligament
ATFL
67
is Mortons neuroma a true neuroma
No, it is fibrotic inflammatory reaction. Also named plantar neuromas are: 1st intermetatarsal space: Heuter neuroma 4th intermetatarsal space: Iselin neuroma
68
Wagstaffe-LeFort Fx
Avulsion of the medial margin of the distal fibula
69
Dupuytren fx
Fx of the fibula above the tib/fib ligament
70
MC loc for cervical flexion teardrop and ass'd with what cord injury
C5 and anterior cord syndrome (loss of motor)
71
MC location for cervical extension teardrop and ass'd with what cord injury
C2 and central cord syndrome
72
Waters projection shows
Midface = Maxillary sinus, orbital floor, nasal septum and zygoma
73
Caldwell projection shows
Upper face = Orbital rim, medial orbital wall and sphenoid wings
74
Towne projection shows
Skull base
75
Def tripod fx
1. Diastasis of the zygomaticofrontal suture 2. Post zygomatic arch fx 3. Fx of inferior orbital rim/lateral maxillary wall
76
Def LeFort 1, 2 and 3
anterolateral margin of the nasal fossa involvement Floating palate if fractured, it is a type I fracture inferior orbital rim involvement Floating maxilla if fractured, it is a type II fracture zygomatic arch involvement - can entrap the temporalis mm Floating face if fractured, it is a type III fracture
77
Def Maloney's arch
Arch b/w axillary scapular border with the humerus
78
Best view to see Hill-Sach deformity and for Trough sign
HS: AP-Int Trough: AP-Ext or axillary
79
Boundaries of the quadrangular space and what mm atrophies with nerve impingement
Teres minor, Teres major, Long head of the triceps and Humerus. Teres minor atrophies from axillary nerve impingement
80
MC artery to bleed in a pelvic ring disruption fx
Gluteal a.
81
Classification system for acetabular fx
Letournel
82
Denis classification system is used for what Fx
Sacral Fx - Depends on where the Fx line is Zone 1 is lateral to neural foramina, Zone 2 is the neural foramina and Zone 3 in mesial to the neural foramina
83
Hohl-Larson Classification system is for what Fx
Patella Fx

Projections (9 decks)

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