Exam 3: Pelvis and Hip

Question 1

3 pelvic joints

Answer 1

2 SI joints

Pubic symphysis

Question 2

SI joints are _____ joints important to statics and dynamics of posture and gait

Answer 2

Mobile synovial

Question 3

Pelvic joints functions

Answer 3

1. Support for trunk
2. Guide movement
3. Absorb compressive forces

Question 4

Interlocking elevations and depressions produces ____ of sacrum

Answer 4

Keystone effect

Question 5

Keystone effect effectively distributes

Answer 5

Axial compressive forces

Question 6

Forces from LE divide

Answer 6

Up toward spine

Ant to pubic symphysis

Question 7

Downward forces of gravity on spine split to

Answer 7

Both sides

Question 8

Sacrum is triangular and serves as a ____ in the arch btw 2 “columns” (LE)

Answer 8

Keystone

Question 9

SI joints at birth

Answer 9

Undeveloped
Smooth
Flat

Question 10

When do SI joints take on adult characteristics

Answer 10

After ambulation starts

Question 11

SI joints in teen years begin to

Answer 11

Roughen

Develop grooves and ridges

Question 12

In later years a high % of patients will have

Answer 12

Interarticular adhesions

Loss of motion

Question 13

Ligamentous stability of the pelvis

Answer 13

Posterior SI ligs
Sacrotuberous lig
Anterior SI lig
Sacrospinous lig

Question 14

Posterior SI ligaments connects the sacrum to the

Answer 14

Iliac tuberosity and posterosuperior iliac spine (PSIS)

Question 15

Posterior SI ligs continue laterally w/ the ____ and medially w/ the ____

Answer 15

Sacrotuberous lig; thoracolumbar fascia

Question 16

Sacrotuberous lig continues caudally w/ the

Answer 16

Tendon of long head of biceps femoris

Question 17

SI joint most active during

Answer 17

Locomotion

Question 18

As the left innominate moves posterior/inferior, the left sacral base moves ____

Answer 18

Anterior and inferior (nutation)

Question 19

As the right innominate moves anterior/superior the sacral base moves

Answer 19

Posterior/superior (counternutation)

Question 20

What muscles cross the Si joint

Answer 20

NONE

Question 21

Muscles around the Si joint provide

Answer 21

Stability NOT mobility

Question 22

Pelvis subluxations

Answer 22

AS or PI

In or Ex

Question 23

Sacral subluxations

Answer 23

Apex L or R
Base Posterior (-thetaX)
Apex posterior (+thetaX)
L/R posteriority

Question 24

Sacrum subluxation: left posterior

Answer 24

+thetaY

Question 25

Sacrum subluxation: right posterior

Answer 25

-thetaY

Question 26

Sacrum subluxation: apex left

Answer 26

+thetaZ

Question 27

Sacrum subluxation: apex right

Answer 27

-thetaZ

Question 28

During gait, hip joint motion is

Answer 28

Triaxial

Flex/ext
Int/ext rotation
Add/abduction

Question 29

Which movement of hip has the largest range

Answer 29

Flexion/extension

Question 30

Common causes of iliofemoral joint pain

Answer 30

Muscle strain
Bursitis
Pathomechanic

Question 31

Femoro-acetabular impingement is found in ___

Answer 31

Adults

Question 32

Femoro-acetabular impingement leads to

Answer 32

Painful/limited hip motion

Morphological changes of bony structures

Early osteoarthritis

Question 33

Slipped capital femoral epiphysis is found in

Answer 33

Kids

Growth plate injury, epiphysis is displaced

Question 34

Slipped capital femoral epiphysis is MC in

Answer 34

Boys