knee pathology and intervention Flashcards
which is more at risk for osteoarthritis, following lateral meniscectomy or following medial meniscectomy?
lateral
which direction do the menisci move during knee flexion?
posteriorly (semitendinosus + popliteus)
Patients with ACL deficiency or following ACL surgery will have impaired….
proprioception
a knee brace used following ligament repair is primarily used to increase _______ input since structures have been injured/repaired
proprioceptive
exercise prescriptions/programs following ACL reconstruction should focus on strengthening this muscle group
hamstrings
A-P movement is greater in this meniscus, making it more prone to injury
lateral
following PCL injury/reconstruction, this muscle group should be focused on during rehab
Quads
You can isolate the VMO during exercise. T or F
FALSE
type of exercises that are best for specific strengthening of isolated weakened muscles
open kinetic chain
who is at greater risk of ACL injury? men or women
women
- q angle
- quads > hamstrings
- genu valgum
% of patients that report a crack or pop with ACL injury
80%
strongest ligament in the knee
PCL
LCL injury may also have associated injuries with this nerve
peroneal nerve
to dislocate a knee this # of ligaments are most likely torn
at least 3 ligaments
heat weakens collagen in ligaments and tendons. T or F
True
If a patient presents with quad lag following surgery, they should be using a AD to prevent falls until the quad is strengthened further. T or F
True
normal quad : hamstring ratio
3:2
a good quad : hamstring ratio for someone following ACL tear
1 : 1 ratio - don’t have weak quads!! just strengthen hamstrings more to match
priority for rehab following ACL reconstruction
gain full active knee extension
autograft vs allograft
auto- patients own tissue
allo- graft from a cadaver
with all grafting procedures, return to sport takes……
6-9 months
graft strength is the highest….
immediately following surgery/reconstruction
a graft/reconstruction is the weakest from weeks…..
6-16
degree of knee flexion that causes co-contraction of the quads and hamstrings
30 degrees
quadriceps neutral position that should not be exceed into further extension immediately following ACL repair for OKC exercises
60-75
knee flexion position that should be avoided immediately following PCL repair for OKC hamstring exercises
beyond 90 degrees flexion
2 safe ways/exercises to put low strain on the ACL
stairs
bicycling
a torn ACL does not heal. T or F
True
the mechanism of most PCL injuries is a fall on a _____ knee with the foot and ankle ________
flexed knee w/ foot and ankle plantarflexed
most commonly injured ligament in the knee
MCL
the emphasis on rehab immediately following an acute knee injury or surgery is …..
regaining motor control
muscle that is best suited to control medial rotation of the femur and can prevent valgus stress at the knee
gluteus maximus
If MCL and ACL are both injured simultaneously, the MCL may be repaired first while ACL is managed conservatively. T or F
True
If the medial meniscus and ACL are injured simultaneously, should the ACL be reconstructed alongside the medial meniscus?
Yes
ACL contraindicated range for OKC extension exercises
0-40
PCL contraindicated range for OKC flexion exercises
60-135
