Lower extremity

Question 1

Radiographic views of the Hip and Pelvis for a. Pelvis and b. Hip

Answer 1

a. A-P and b. A-P or Frog leg

Question 2

ossification centers for: Primary Centers

Answer 2

ilium, ischium, pubis

Question 3

Ossification Centers for Secondary Centers

Answer 3

iliac crest, AIIS, ischial tuberosity, public symphysis and triradiate

Question 4

Triradiate Cartilage: Complete this statement- a. Cartilaginous junction where the b. Fuse together at

Answer 4

a.ilium, ischium and pubis join b. puberty

Question 5

Apperance of the secondary centers of ossification of the hip and pelvis: a. Femur head b. Greater trochanter c. Lesser trochanter d. Inferior ramus of the ischium e. Posterior rim of the acetabulum

Answer 5

a. 4 months b. 3 years of age (yoa)c. 12-13 yoa d. 13-15 yoa e. 16 yoa

Question 6

3 Fat pads of the hip

Answer 6

1. Gluteus medius 2. Iliopsoas 3. Obturator internus

Question 7

Femoral angle

Answer 7

<120 = coxa vara and >130 = coxa valga

Question 8

Herniation Pit Defect (Pitt’s Pit): Well defined radiolucent defect in the Ant.-Sup. or Ant.-Inf. aspect of the femoral neck.

Answer 8

5% of adults and Contains fibrous or connective tissue

Question 9

Etiology defined as ______ from the overlying joint capsule (_____ part) and iliopsoas ______. Abrasion = reactive _____ &raquo_space; penetrates tiny ____ defects.

Answer 9

Abrasion (thickest) and tendon. fibrocartilage, cortical

Question 10

Mechanism: a. Repetitive hip ___ and ___. b. MRI - iliopsoas tendon almost completely ____ the underlying ___ ___ against the Ant. Capsule with the thigh in ____.

Answer 10

a. flesion and extension b. compression, fat pad, extension

Question 11

Intrapelvic protrusion of the acetabulum and femur head a. happens at what age? b. can be what type of laterality? c. Etiologies can be due to

Answer 11

a. any age, b. unilateral or bilateral c. idiopathic, congenital, trauma, bone softening ds.

Question 12

Bone fragment adjacent to the superior lateral margin of the acetabulum is called ?

Answer 12

Os acetabuli

Question 13

Etiologies of Os acetabuli

Answer 13

ununited secondary center of ossification and Accessory ossicle

Question 14

Cresent shaped defect on the ilium at the lower SI joint is known as

Answer 14

Paragleniod (Preauricular) Sulcus

Question 15

Paragleniod sulcus is found most commly in ___ and presents most commonly as ___.

Answer 15

females, bilateral

Question 16

Paragleniod (preauricular) sulcus attachment site for part of the

Answer 16

SI ligament

Question 17

what ilium defect transmits the superior branch of the gluteal artery?

Answer 17

Paragleniod (preauricular) Sulcus

Question 18

Failure of ossification of a lateral margin of the acrum around a foramen is a radiolucent variant called

Answer 18

Patent sacral foramen

Question 19

Patent sacral foramen is made of

Answer 19

cartilage