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Apprehension Test for Patellar Dislocation
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The patient lies supine with knee flexed about 30º and quadriceps relaxed
Examiner applies a lateral pressure to the medial aspect of the patella
Patient may become uncomfortable and apprehensive as the patient reaches the point of maximum passive displacement
Positive finding if the patient begins to resist and attempts to straighten knee
Examiner applies a lateral pressure to the medial aspect of the patella
Patient may become uncomfortable and apprehensive as the patient reaches the point of maximum passive displacement
Positive finding if the patient begins to resist and attempts to straighten knee
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