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Flashcards in Pelvis/Hip Deck (30)
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1

Recommended projections for hip:

AP
Lateral

2

What projection is osseous pelvis evaluated with?

AP

3

Iliopectineal (Iliopubic) line

this line represents the anterior column
line from sciatic notch to pubic tubercle representing limit of anterior column of acetabulum

4

Ilioischial line

this line represents the posterior column
line from iliac notch to inner surface of ischium representing posteromedial margin of quadrilateral surface o

5

Anterior lip of acetabulum

represents the anterior wall of the acetabulum

6

Posterior lip of acetabulum

represents the posterior wall of the acetabulum

7

Fracture of acetabular roof:

represents superior cortical aspect of acetabular cup, which corresponds to major weight-bearing portion of acetabulum

8

Fracture of anterior acetabular rim:

represents anterior margins of acetabular cup

9

Fracture of posterior acetabular rim:

represents posterior cortical rim of acetabular cup

10

Coxa vara

angle less than 130

11

Coxa Valga

angles greater than 130

12

Most common disease of hip?

DJD referred to as OA

13

Primary etiology of DJD at hip:

developing without a clear precursor

14

Secondary etiology of DJD at hip:

directly related to some predisposing trauma or pathological condition

15

Secondary hip OA may be due to:

Fracture
Paget’s disease
Epiphyseal disorders
Congenital dislocation
Avascular necrosis (AVN)
Other inflammatory arthritides

16

Radiographic hallmarks of DJD at hip joint include:

Joint space narrowing
Sclerotic subchondral bone
Osteophyte formation at joint margins
Cyst or pseudocyst formation
Migration of femoral head

17

What are cysts a result of:

degeneration of articular cartilage

18

Goals of conservative treatment of hip DJD:

decrease pain
Restoring flexibility and strength
Preserving functional activities and ambulation with assistive devices to unload joint from full weight-bearing stresses

19

Rheumatoid arthritis:

a progressive, systemic, autoimmune inflammatory disease primarily affecting synovial joints

20

Clinical features of RA:

Morning joint stiffness
Bilateral and symmetrical swelling of joints
Pain and functional disability
Rheumatoid nodules
Positive rheumatoid factor test
Radiographic changes consistent with RA

21

RA of hip characterized by:

Osteoporosis of periarticular areas becoming more generalized with advancement
Symmetrical and concentric joint space narrowing
Articular erosions located either centrally or peripherally in joint
Synovial cysts located within nearby bone
Periarticular swelling and joint effusions
Axial migration of femoral head
Acetabular protrusion

22

Where is OA of the hips usually first seen?

femoral head

23

What is an acetabular protusion?

an expansion of acetabulum into pelvis

24

What is the distinct difference between DJD and RA?

rheumatoid arthritis has minimal or absent reparative processes

25

Osteochondritis dissecans:

If an infarction affects local segment of bone, AVN
Most often seen in weight bearing bones

26

Epiphyseal ischemic necrosis

An infarction that affects entire epiphysis in a growing child
Proximal femur is most common location

27

3 categories that can disrupt osseous blood supply:

Conditions that result in external blood vessel compression or disruption near/within bone such as trauma, infection, or steroid administration
Conditions that result in blood vessel occlusion b/c of thickening of vessel wall such as radiation therapy, systemic lupus erythematosus, or giant cell arteritis
Conditions that result in blood vessel blockage from thromboembolic process such as alcoholism, diabetes, or sickle cell disease

28

What is sclerosis and cyst formation at femoral head a characteristic sign of?

initial necrotic processes and healing attempts taking place

29

What is the most appropriate study for early sensitivity and specificity in diagnosing AVN?

MRI

30

Conservative treatment of AVN of femoral head?

Prolonged avoidance of weight-bearing
Traction
Bracing
Casting
Exercise