Arthrology of the knee and hip

Question 1

What are the attachments of the sacrotuberous lig.

Answer 1

PSIS + Lateral Sacrum to ischial tuberosity

Question 2

What are the attachments of the sacrospinous lig.

Answer 2

From lat. sacrum to Ischial spine

Question 3

Iliofemoral lig. Attachments

Answer 3

Anterior inferior illiac spine to the intertrochanteric line of the femur

Question 4

Function of the iliofemoral ligament

Answer 4

limits extension IR, ER of the femur on the acetabulum

Question 5

Pubofemoral lig. attachments

Answer 5

From the illiopubic emenence and superior pubic ramus to fibrous capsule

Question 6

Function of the pubofemoral lig.

Answer 6

Limits abduction of the femur

Question 7

What are the attachments of the ischiofemoral lig.

Answer 7

from the posterior ishium to the acetabulum, greater trochanter of the femur and the illiofemoral lig.

Question 8

What is the function of the ishiofemoral lig.

Answer 8

Assistes the illiofemoral lig. with limiting femoral extension

Question 9

Ligament of the head of the femur (ligamentum teres) attachment

Answer 9

from the fovea of the femoral head to the acetabular notch

Question 10

Transverse Acetabular lig. attachments

Answer 10

interconnects the margins of the acetabular notch

Question 11

Fibrous joint capsule of the hip attachments

Answer 11

margin of acetabulum to the neck, intertrochanteric line and crest of the femur

Question 12

What type of joint is the Sacroilliac joint

Answer 12

plane

Question 13

What type of joint is the hip joint

Answer 13

ball and socket

Question 14

What type of joint is the tibiofemoral joint

Answer 14

bi-condylar hinge

Question 15

What type of joint is the proximal tibiofibular joint

Answer 15

plane gliding

Question 16

What are the attachments of the fiberous capsule of the knee?

Answer 16

margins of the femoral condlyes to the margins of the tibial condyles

Question 17

Tibial/ MedialCollateral Lig. attachments

Answer 17

Medial condyle of the tibia to medial condyle /shaft of femur

(deep to sartorius and pes anserinus)

Question 18

Fibular (lateral) collateral lig. attachments

Answer 18

Lateral condyle of femur to the head of the fibula

Question 19

Tibial/ MedialCollateral Lig. functions

Answer 19

resists valgus forces @tibiofemoral joint , stabalizing medial aspect of joint

Question 20

Fibular (lateral) collateral lig. function

Answer 20

Resists varus forces @tibiofemoral joint and sab lat. aspect of joint

Question 21

ACL : Anterior cruciate lig. attachments

Answer 21

Anterior medial intercondylar are of the tibia to the lateral condyle of the femur

Ant. Medial -> Post. Lat

Question 22

ACL functions

Answer 22

Prevents ant. displacement of tibia
prevents post . dis. of femur

prevents HYPERextension and limits ROTATION of tibia on femur

Question 23

PCL: Posterior Cruciate lig. attachments

Answer 23

from post. medial intercondylar space of the tibia to lateral side of medial condyle of the femur

Post. Medial -> Ant. lat. of medial condyle

Question 24

Medial minisci attachments

Answer 24

medial intercondylar area of tibia + fibrous capsule at the medial collateral lig.

Question 25

Lateral minisci attachments

Answer 25

lateral intercondylar area

Question 26

Medial petellofemoral lig. attachments

Answer 26

50 % of medial patella to the medial epicondyle of the femur

Question 27

Medial petellofemoral function

Answer 27

Prevents lat. displacement of the patella

Question 28

Crural interosseous membrane attachments of tibia and fibula

Answer 28

from interosseous border of the tibia to the interosseous border of the fibula

Question 29

What is the only lig. that doesn't attach to the tibia

Answer 29

Lat. collateral lig. : attaches to the fibula

Question 30

In addition to the ACL, what is also injured during a hyperextension injury?

Answer 30

Post. ligaments of the knee

Question 31

Which Femoral condyle is larger and what movement does it cause the tibia to do at terminal extension of the knee?

Answer 31

Medial femoral condyle is larger: causes tibia to ER which creates bony congruency and ligamentous tension

Question 32

Which menisci is larger and is in a C shape and attaches to a collateral lig.

Answer 32

Medial meniscus attaches to MCL + semimembranous

Question 33

Why might resisted knee flexion be a contraindication after a MCL/ medial menisci tear?

Answer 33

Because the medial meniscus attaches to the MCL and hamstring semimembranousus muscle at the posterior horn

Question 34

Where is BF the greatest in the menisci?

Answer 34

BF is the greatest in the peripheral (outside) the menisci, less on the inside

Question 35

Compression at the knee is increased by what 2 things?

Answer 35

1. Quad muscle force/activation 2. Deg. of knee flexion

Question 36

What are some anatomical factors that predispose ind. to patellar instability?

Answer 36

1. Medial patella femoral lig. reticular deficiency 2. Shallow trochlear groove (Trochlear dysplasia) 3. Flat patella 4. Petella alta (high petalla)