Anatomy
Postitioning
CR
Pathology
100
What makes up the knee?
Its formed by femoral condyles, articular facets on the superior surface of tibial condyles.
100
In an AP knee prokection how should the femoral epicondyles be to the IR?
Parallel
100
What is the CR for an AP Knee? Depending on ASIS to table top measurement
<19 cm= 3-5 degrees caudad 19-24 cm= perpindicular >24 cm = 3-5 degrees cephalad
100
What is the Valgus ?
AKA " Knock-kneed" , caused by erosion, narrowing and resulting stress on the lateral compartment.
200
What type of joint classifications are in the knee?
Synovial, diarthrodial, and hinge type.
200
For a lateral knee the patient postion should be?
Affected knee flexed and brought forward, unaffected limb extended behind it.
200
What is the CR and CR entry for a lateral knee?
5-7 cephalad, 1" distal to medial femoral epicondyles
200
What is Vargus?
AKA " Bow-legged" Can be caused by erosion, narrowing and stress on the medial compartment
300
The knee is stabalized and cushioned by......
The menisci fibrocartilagious disks.
300
For an AP oblique knee lateral rotation , how mucg obliquity do you use?
Limb externally roated 45 degrees
300
What is the CR entery for an AP oblique with the knee in a lateral rotation?
Enters 1/2 below patellar apex.
300
If a patella fracture is present...
You must not have more then a 10 degree of flexion to prevent fragment seperation.
400
What is the largest, most constant seisamoid bone in body?
Patella
400
How do you postiton a patient for an AP Knee( weight bearing)?
Center knees to IR, toes straight ahead and feet seperated for balance, knees extended with weight equally distributed on both feet.
400
What is the CR and CR entry for an AP knee ( weight bearing)?
Horizontal and perpindicualr to center of IR. Enters 1/2 below patellar apex.
400
What is a common tear in the knee called?
Torn Meniscus
500
What are the four ligaments of the knee?
Posterior Cruciate Ligament (PCL) Anterior Cruciate Ligament (ACL) Tibial Collateral Ligament ( TCL) Fibular Collateral Ligament ( FCL)
500
In an AP oblique knee , medial rotation what is the patients postion ?
Supine, Elevated affected hip if necessary to rotate limb.
500
What is the CR entry for an AP obliqu knee with medial rotation?
Enters 1/2 below patellar apex
500
What is the most common arthritis in the knee?
Osteo arthritis
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