Knee Flashcards
Anterior Drawer
- test the integrity of the ACL
- positive with excessive anterior translation of the tibia
pt and PT position in the anterior drawer
pt: in supine with hip flexed to 45 and knee flexed to 90
PT: hands on posterior tibia and stabilizing the foot translating tibia anteriorly
Lachmans test
- gold standard test for the integrity of the ACL
- positive with excessive tibia translation compared to the other side
pt and PT position in Lachmans test
pt: supine with knee flexed to about 20-30 degrees
PT: hands on the posterior tibia and stabilizing the foot provide an anterior translation of the tibia
Lellis test
- used to test a grade 3 ACL tear
- positive with lack of anterior motion of the tibia
Lellis test pt and PT position
pt: supine with towel under the lower leg
PT: provide a posterior force onto the femur
Posterior Drawer
- test the integrity of the PCL
- Positive with excessive posterior translation
posterior drawer pt and PT position
pt: supine with hip flexed to 45 and knee flexed to 90
PT: stabilize the foot, hands on anterior tibia giving a posterior glide
posterior sag sign
- test the integrity of the PCL
- positive with a sag or loss of “step”
posterior sag pt and PT position
pt: supine hip flexed to 45 degrees and knee flexed to 90
PT: stabilize at the ankle and at the distal femur
Valgus stress test at 0
- indicates a grade 2/3 MCL tear
- positive with laxity or reproduction of pain
pt and PT position with valgus stress test at 0
pt: supine IR of tibia
PT: one hand on ankle controlling tibial ER and giving valgus force (abduction) the other hand supporting lateral femur
Valgus stress test in 20-30 degrees of flexion
- tests the integrity of the MCL grade 1/2
- positive with increase laxity or reproduction of pain
pt and PT position with the valgus stress test at 20-30 degrees
pt: in supine knee bent to 20-30 degrees tibia in ER
PT: one hand at ankle providing tibia ER and abduction of the leg. the other hand supporting the distal femur
varus stress test at 0 degrees
- used to test the integrity of the LCL grades 2/3
- positive with increased laxity or reproduction of pain
pt and PT position for a varus stress test at 0 degrees
pt is in supine.
PT: one hand at ankle providing IR and adduction of the tibia. the other hand supporting the distal femur.
pivot shift test
- used to test the ACL, anterolateral instability, rotational instability
- positive if tibia relocates backward 30-40 accompanied by a “clunk” or “giving way”
pt and PT position in the pivot test
pt: supine, knee in extension, hip flexed/abducted to 30 degrees with internal rotation
PT: hold lateral calcaneous to introduce IR and second hand at fibia head to give a valgus force. move the knee into flexion from extension
mcmurrays test with IR
- used to test the lateral meniscus
- positive with a reproduction of a click and/or pain at the joint line
pt and PT position in the mcmurrys test with IR
pt: supine starting with knee all the way flexed
PT: hand on the lateral ankle providing IR other hand on the knee joint controlling extension
mcmurray test with ER
- used to test the integrity of the medial meniscus
- positive with a click and/or reproduction of pain at joint line
pt and PT position in mcmurrays test with ER
pt: supine with knee flexed all the way
PT: hand on medial ankle providing external rotation of the tibia. other hand on the joint line controlling knee into extension.
Thessaly
used to test the integrity of the meniscus
pt and PT position for thessaly
pt: SLS with slight bend in the knee rotating medially and laterally
PT: provide UE support for pt.