pelvis

Question 1

Areas to assess

Answer 1

Soft tissue signs
Lower lumbar spine
Iliac crests
SI Joints
Sacrum
Pubic rami

Question 2

common mechanisms of injury

Answer 2

RTC (50-60% in adults and 20-30% in children)
Falls
crush
pedestrian vs car (10-20% in adults, 60-80% in children)

Question 3

traumatic classifications

Answer 3

Lateral Compression
Antero-posterior Compression
Vertical Shearing

Question 4

Vertical Shearing

Answer 4

Vertical displacement of major components
Very unstable#

Question 5

Antero-posterior Compression

Answer 5

Diastasis of the symphysis pubis
Open book #s

Question 6

Lateral Compression

Answer 6

Sacral crush #s
Oblique fractures through the pubic rami

Question 7

types of prosthesis

Answer 7

Dynamic hip screw (DHS), Total hip replacement, Cannulated hip screw (CHS) and hemiarthroplasty

Question 8

shenton’s line

Answer 8

curved line drawn along the inferior border of the superior pubic ramus and along the inferomedial border of the neck of femur

Question 9

pathologies

Answer 9

OA, Osteopokilosis, paget’s disease, metasteses

Question 10

osteopoikilosis

Answer 10

‘multiple boney islands’, non-expansile, dotted appearance of dense areas

Question 11

paget’s disease

Answer 11

disrupted cortex, isolated to an area, bony expansion

Question 12

boney mets

Answer 12

malignant, many osteolytic lesions

Question 13

paediatric pathologies

Answer 13

Developmental dysplasia of the hip (DDH), Perthes

Question 14

DDH

Answer 14

‘ball and socket’ joint of the hips doesn’t properly form in babies and young children.

child may develop limp

stiff joints

Question 15

DDH radiographic appearance

Answer 15

• shallow acetabulum
• femoral heads not symmetrical e.g. one smaller than other
• femoral head not in correct position

Question 16

Perthes

Answer 16

Avascular necrosis of the femoral head
Blood supply temporarily disrupted
Bone cells begin to die
Area becomes inflamed/irritated
Child may begin to limp
Pain worsens with activity & relieved with rest

Question 17

radiographic appearance perthes

Answer 17

sclerotic femoral head, loss of symmetry, flattening of femoral head

Question 17

radiographic appearance perthes

Answer 17

sclerotic femoral head, loss of symmetry, flattening of femoral head

Question 18

Slipped Upper Femoral Epiphysis (SUFE)

Answer 18

Instability of the proximal femoral growth plate

femoral epiphysis slips out of position

Question 19

imaging for paeds

Answer 19

AP and frog leg lateral