Knee Ligament CPG

Question 1

What percentage of ACL injuries are non-contact?

Answer 1

Approx 70%

Question 2

What are the two most common ways to tear the PCL?

Answer 2

MVA

athletics

Question 3

Which ligament is the least commonly injured?

Answer 3

LCL

Question 4

How high is the re-injury rate for a second ACL (both contralateral and ipsilateral)?

Answer 4

15%

Question 5

What is a factor leading to higher risk for second injury?

Answer 5

Age - younger age with initial injury results in higher rate for second injury

Question 6

Are there higher rates of risk in younger male or younger female athletes for ACL injury?

Answer 6

Younger female

Question 7

What injury occurs to the knee with a lateral load while the foot is contacting the ground?

Answer 7

MCL injury

Question 8

What injury occurs to the knee with a posterolateral blow to the medial knee in full extension?

Answer 8

Posterior lateral corner injury

Question 9

Which sport has the highest injury for ACL?

Answer 9

Soccer

Question 10

What are higher risk factors for ACL injury? (6)

Answer 10

1) female
2) narrow femoral notch
3) lesser concavity depth of medial tibial plateau
4) greater laxity
5) prior ACL
6) familial disposition

Question 11

What is the cutoff for percentile of equality for hop testing, cross over hop for long term outcomes for ACL?

Answer 11

88%

Question 12

What scenario is most beneficial for bracing and improving outcomes in ACL injury?

Answer 12

ACL deficient - no more beneficial following ACL reconstruction

Question 13

What is the recommendation for use of NMES regarding post-surgical ACL reconstruction?

Answer 13

First 6-8