Gluteal Region

Question 1

superior cluneal nerves- level, what does it supply (dematomal)

Answer 1

PPR L1-3

Supply buttock below the 1/3 of iliac crest and take the central part and descend as lat as greater trochanter

Question 2

medial cluneal nerves- level and what does it supply (dermatomal)

Answer 2

PPR s1-3

medial aspect of buttock

Question 3

iliohypogastric and subcost- level and what does it supply (dematomal)

Answer 3

iliohypo- APR l1
Subcost- APR T12

superiolat and inf 1/3 of the iliac crest

Question 4

Perforating nerves- levels and what does it supply (dermatomal)

Answer 4

APR s2,3

inf and medial buttock region

Question 5

Inf cluneal nerves- levels and what does it supply (dematomal)

Answer 5

S1-3

inf buttock lateral region

Question 6

post branch of later cutaneous femoral- level and what does it supply (dermatomal)

Answer 6

S1,2,3

skin over the greater trochanter, lat aspect of the thigh and a little bit post

Question 7

landmarks for sup border of glute max

Answer 7

PSIS to greater trocanter

Question 8

landmarks for inf border of glute max

Answer 8

apex of coccyx to ishial tuberosity

Question 9

where are the bursas located for the glute max

Answer 9

bw glute and ishial tuberosity

bw greater trochanter and glute max

Question 10

what % of glute max fibres go to IT band and greeter trochanter

Answer 10

75% to IT band

Question 11

what forms the IT band

Answer 11

75% glute max, tensor fascia lata, lat septum

Question 12

When is a trendelenbergs signs positive and what nerves are affected

Answer 12

when standing on one limb, the pelvis drops on uneffected side

L4,5,S1 (sup cluneal)

Question 13

Spinal cord level of tibial div of sciatic nerve and common fibular

Answer 13

Tib=APR L4-S3

Fib= APR L4-S2

Question 14

what exits out of the suprapiraform space (3)

Answer 14

• Sup gluteal artery
• Sup gluteal vein
• Sup gluteal nerve

Question 15

what exits out of the infrapiraform space

Answer 15

the rest of the nerves of the sacral plexus except pudendal+ nerve to obturator internus

Question 16

what exits out of the lesser sciatic foramen

Answer 16

(goes back into the pelvic cavity)
pudendal nerve
nerve to obturator internus
+ their corresponding vessels

Question 17

where does the sciatic nerve usually emerge from and what is the varient that can happen

Answer 17

Usually emerges under the piriformis (infrapiraform space)

-Fibular div is variable sometimes when it pierces the piroformis (12-17%)

Question 18

what are the landmarks to find the sciatic nerve

Answer 18

midpoint bw the greater trochanter and ischial tub

Question 19

what muscles does the sup gluteal nerve run thru

Answer 19

between gluteus med and min

inervates glute med, min, tfl

Question 20

where does the sciatic nerve split into its 2 terminal branches

Answer 20

between middle and distal third of the leg

Common fibular deviates laterally

Question 21

what does the nerve to quad femoris and inf gemmellus run on top of

Answer 21

Sciatic nerve

Question 22

where does the post femoral nerve pass in relation to the sciatic and what branches does it have

Answer 22

medial to sciatic nerve

-@ inf gluteal fold it will send peroneal branches and inf cluneal nerves
Terminates in proximal posterior mid leg

Question 23

what does the inf gluteal muscle supply

Answer 23

lower half of gluteus max, Sciatic nerve (thus ischemia may cause sciatica issues) , hamstrings, greater trochanetr

Question 24

what 4 blood vessels make up the arterial crutiate anastomoses

Answer 24

inf gluteal artery
transvere branch of medial circumflex
transverse branch of lateral circumflex
perforating branch of deep artery of thigh

(all on posterior side of greater trochanter, so they will never do surgery from this side)

Question 25

Path of the sciatic nerve- what does it go over and under

Answer 25

above post surface of ilium, obturator internus + gameelus, inf gameelus, quadratus femoris

under glute max and thru the biceps femoris (long), superficial to adductor magnus till popliteal fossa

Question 26

What does the sciatic nerve travel w/

Answer 26

post femoral cutaneous nerve

Inf glueteal nerve/artery/vein

Question 27

what are the 3 areas that the sciatic nerve can be impinged

Answer 27

1- over ishial bone/spine

2- Under inf border of piriformis

3- close to central tendon of hamstring and ishial tuberosity

Question 28

Most common causes of sciatica

Answer 28

Herniation of disks

L3-4
L4-5
L5-S1

Question 29

What 3 things are done to compensate for a sup gluteal n problem

Answer 29

supplies tfl, glute min, med

waddeling- leans away from unsuported side
swingout- foot swings around
steppage- the foot is higher as its brought forward