Week 4 Hip and adjacent joints

Question 1

joint classifications of lumbosacral (L5/S1) joint

Answer 1

secondary cartilaginous (symphysis)

Question 2

joint between vertebral bodies

Answer 2

secondary cartilaginous

Question 3

joint between vertebral arches

Answer 3

synovial joints

Question 4

movements of L5/S1 joint

Answer 4

flexion
extension
lateral flexion

Question 5

joint classification of sacroiliac joint

Answer 5

synovial anteriorly
fibrous posteriorly

Question 6

ligaments of sacroiliac joint

Answer 6

anterior sacroiliac
posterior sacroiliac
interosseous sacroiliac
accessory (sacrotuberous/ sacrospinous)

Question 7

movements of sacroiliac joint

Answer 7

slight gliding (nutation)

Question 8

joint classification of pubic symphysis

Answer 8

secondary cartilaginous joint

Question 9

ligaments of pubic symphysis

Answer 9

superior pubic
arcuate

Question 10

joint classification of hip joint

Answer 10

ball and socket synovial joint

Question 11

bone and articular surfaces of hip joint

Answer 11

acetabulum - non articular surface, fossa and notch
head of femur - articular surface and fovea

Question 12

fibrous capsule of hip joint

Answer 12

• general attachment
• zone orbicularis
• retinacula

Question 13

intrinsic ligaments of hip joint

Answer 13

1. iliofemoral
   - anteriorly
   - very strong triangular band
2. ischiofemoral
   - posteriorly
3. pubofemoral
   - anteriorly
   - blends with inferior band of iliofemoral ligament

Question 14

extrinsic ligaments of hip joint

Answer 14

transverse acetabular ligament
ligament of head of femur - flattened band, weak, extrasynovial but intracapsular

Question 15

how does an ‘intrinsic’ and ‘extrinsic’ ligament differ?

Answer 15

intrinsic:
- large amount of fibrocartilage near insertions
- no elastin

extrinsic:
- little fibrocartilage
- less elastin

Question 16

special structures of hip joint

Answer 16

fat pad
acetebular labrum
bursae

Question 17

Hilton’s law

Answer 17

a nerve that supplies a muscle producing movement of joint, also supplies that joint

Question 18

nerve supply of hip joint

Answer 18

femoral nerve
obturator nerve
superior gluteal nerve
nerve to quadratus femoris

Question 19

blood supply of hip joint

Answer 19

medial and lateral circumflex femoral arteries (from profunda femoris)
retinacular arteries
artery to the head of the femur (from the obturator artery)

Question 20

close packed position of hip joint

Answer 20

extension, slight abduction and internal rotation

Question 21

In which position of the hip joint is there the most congruenct (contact between articular surfaces)?

Answer 21

partially flexed and abducted position