Knee Special Tests
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Varus Stress | LCL laxity | increased opening of joint space (at 0 degrees - damage to capsule and ligament, at 30 degrees - damage to ligament only)
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| Valgus Stress | MCL laxity | increased opening of joint space (at 0 degrees - damage to capsule and ligament, at 30 degrees - damage to ligament only)
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| Lachman's | ACL laxity | increased anterior translation of the tibia; increased laxity of the ACL
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| Anterior Drawer | ACL laxity | increased anterior translation of the tibia; increased laxity of the ACL
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| Slocum's | anterolateral and posteromedial instability | increased anterolateral (IR) and posteromedial (ER) translation
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| Hughston's/Jerk | anterolateral instability; ACL laxity | tibia subluxes anteriorly with knee at 20-30 degrees FLEX
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| Pivot Shift (McIntosh) | anterolateral instability; ACL laxity | posterior shift of the tibia going into 30-40 degrees knee FLEX; anterior shift of the tibia into knee EXT
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| Posterior Sag (Godfrey's ) | PCL laxity, posterior joint capsule integrity, arcuate complex instability | tibia sags posteriorly
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| McMurray's | medial and lateral meniscal damage | pain, clicking at the joint line
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| Apley's Compression | meniscal damage | pain with compression
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| Apley's Distraction | ligamentous damage | pain with distraction
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| Medial Synovial Plica | symptomatic plica dysfunction | reproduction of symptoms
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| Stutter | medial synovial plica dysfunction | irregular motion (stuttering) between 40-60 degrees into knee EXT
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| Wilson's | osteochondral defects or osteochondritis dissicans | pain with EXT and tibial IR that is relieved with tibial ER
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| Grind (Clark's Sign) | deterioration of patellar articular cartilage | pain under patella; grinding
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| Apprehension | patellar subluxation/dislocaiton | apprehension, pain during lateral translation of the patella
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| Sweep | joint effusion | small area of fluid accumulates on the medial aspect of the knee
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| Ballotable Patella | joint effusion | patella rebounds, "floats up" after depression
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Created by:
tmsavage
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