Knee Anatomy
What motions can the knee do? (4)
flexion, extension, tibial internal rotation, tibial external rotation
Osgood Schlatter's
longest muscle in the body
sartorius
A tight IT band may lead to pain at the hip or at the _____.
Knee
If an athlete cannot perform a “duck walk” or a deep squat, what structure in the knee might be injured?
meniscus
When the patella moves out of the femoral groove (usually laterally)
patella dislocation/subluxation
inserts into gerdy's tubercle
IT band or iliotibial tract
The function(s) of the Vastas Medialis is to:
extend the knee
List at least 3 things to focus on when doing exercises to prevent knee injuries
avoid knee valgus, light landing, strengthen hamstrings, eccentric strengthening of thigh muscles, gluteus Medius strengthening, balance
sits on the tibial plateau and acts as shock absorbers, deepen and cushion the tibiofemoral joint
menisci
Athlete may hear or feel a pop. MOI usually involves rotation of the knee with foot planted. May occur contact or noncontact. Most could be prevented with exercise program. Athlete could have positive lachmans or anterior drawer test
ACL sprain
Sartorius, gracilis and semitendinosus insert here
Pes anserine
a valgus force on the knee might injury which ligament?
MCL
when knee angels inward when jumping or doing exercises, this must be avoided to prevent knee injuries!
knee valgus
These ligaments pass through the middle of the knee joint and cross each other.
What is the anterior and posterior cruciate ligament?
Frequently injured when an athlete falls, and a bent knee bears his full weight, or when the knee is forcefully hyperflexed. Often referred to as dashboard injury in car accidents
PCL sprain
List the 3 hamstring muscles.
biceps femoris, semitendinosus, semimembranosus
The quads perform knee ____________, while the hamstrings perform knee ___________.
extension, flexion
What term means to have good balance that we learned during the knee exercise prevention lab?
proprioception
This ligament resists a varus force on the knee
LCL
When this structure is torn, it requires surgery to fix. Only parts of the structure is vascular, so sometimes the orthopedic surgeon can repair it and sometimes they have to remove it.
meniscus tear
When palpating the hamstring tendons at the posterior aspect of the knee, which hamstring tendon is palpated most laterally?
Biceps femoris
Patella tendonitis is also known as
Jumper's knee