Knee

Question 1

Biomechanics MCL

Answer 1

blends with connective tissue of the knee joint capsule and medial meniscus

Question 2

Biomechanics LCL

Answer 2

DOES NOT attach to capsule or lateral meniscus, extra-articular structure

Question 3

ACL becomes more taut in knee ______

Answer 3

flexion

Question 4

PCL becomes more taut in knee ______

Answer 4

extension

Question 5

In external rotation:
collateral ligaments are _____
cruciate ligaments are ______

Answer 5

collateral ligaments are taught

cruciate ligaments are lax

Question 6

In internal rotation:
collateral ligaments are _____
cruciate ligaments are ______

Answer 6

collateral ligaments are lax

cruciate ligaments are taught

Question 7

90 degrees of flexion:
collateral ligaments are _____
cruciate ligaments are ______

Answer 7

both are lax

Question 8

30deg- 5deg knee extension

Answer 8

lateral femoral condyle and lateral meniscus become more congruent, glide increases on medial side

Question 9

Last 5 deg knee extension

Answer 9

Tibial ER

Femur IR

Question 10

Patellar contact knee at 0deg

Answer 10

no contac

Question 11

Patellar contact knee at 15-20 deg

Answer 11

inferior pole

Question 12

Patellar contact knee at 45 deg

Answer 12

middle pole

Question 13

Patellar contact knee at 90 deg

Answer 13

all facets

Question 14

Patellar contact knee at 135 deg

Answer 14

odd facet and lateral aspect

Question 15

S/S meniscus injury

Answer 15

lateral or medial joint line pain
effusion
sensation of joint crepitus or popping
locking
instability in ambulation
limited knee ROM

Question 16

Education- meniscus injury

Answer 16

Wk 1- 70 deg ROM, 20% wB
Wk 5- 130 deg ROM, FWB
Wk 6- unloaded flexion
Wk 7- loaded flexion

Question 17

Meniscus repair- Early and Immediate Exercises Precautions

Answer 17

1. leg press- 8wks, 0- 60 deg
2. stationary bike- seat as high as possible to limit flexion
3. squat- no knee flex > 45 deg (4wks) or > 60-70 deg (8wks)
4. gradual increase in knee flexion

Question 18

Meniscus repair- Advanced Rehab

Answer 18

1. no deep squat, deep lunges, twisting, or pivoting until 4-6mos
2. no jogging until 5-6mos

Question 19

Classification- ligament injuries

Answer 19

1st- minimal damage, no loss of function
2nd- some torn, functional compromise
3rd- complete rupture, loss of function

Question 20

PFPS causes

Answer 20

quadriceps weakness
weakness VMO
Tight IT band
Tight hamstrings
Weak or tight hip muscles (adductors, abductors, ERs)
Tight calf muscles

Question 21

Open Kinetic Chain- the lowest PJRF is at ___________

Answer 21

40-90 deg flexion

Question 22

Closed Kinetic Chain- the lowest PJRF is at ________

Answer 22

0-16 deg (initially)

0-30 deg (progressed)