Lower Extremity

Question 1

What muscles insert on the: iliac crest, ASIS, AIIS, greater trochanter, pubis body and inferior pubic ramus, ischial tuberosity, lesser trochanter?

Answer 1

Iliac crest: abdominals
ASIS: Sartorius, TFL
AIIS: rec fem
Greater trochanter: hip rotators
Pubic body/ramus: adductors, gracilis
Ischial tuberosity: hamstrings
Lesser trochanter: iliopsoas

Question 2

2 types of stress fracture

Answer 2

fatigue and insufficiency

Question 3

fatigue fracture: etiology

Answer 3

normal bone, abnormal stress

Question 4

insufficiency fracture: etiology

Answer 4

abnormal bone (osteoporosis, metabolic disease, DM, etc) with normal stress

Question 5

blood supply to femoral neck: why is it important?

Answer 5

runs through the femoral neck; disruption may lead to AVN

Question 6

AVN femoral neck: role of X ray in viewing

Answer 6

X-rays often negative

Question 7

AVN in femoral neck: what is a more sensitive imaging modality?

Answer 7

if X-ray negative, MRI or bone scan more sensitive

Question 8

your pt. had a fall and you suspect hip fracture. what do you do?

Answer 8

Keep Pt. non WB. If s/he had an XR that came back negative, send them for an MRI

Question 9

what bone is distal to the medial cuneiform? what bone is proximal?

Answer 9

distal bone: 1st metatarsal

proximal bone: navicular

Question 10

what bones are immediately distal to the navicular?

Answer 10

medial and middle cuneiform, tiny corner of lateral cuneiform

Question 11

what bone is immediately proximal to the 4th and 5th metatarsals?

Answer 11

cuboid