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drawer test
The drawer test is used in the initial clinical assessment of suspected rupture of the cruciate ligaments in the knee. The patient should be supine with the hips flexed to 45 degrees, the knees flexed to 90 degrees and the feet flat on table. The examiner positions himself by sitting on the examination table in front of the involved knee and grasping the tibia just below the joint line of the knee. The thumbs are placed along the joint line on either side of the patellar tendon. The index fingers are used to palpate the hamstring tendons to ensure that they are relaxed as contracted hamstring muscles may inhibit forward movement of the tibia, even when the anterior cruciate ligament (ACL) is deficient, thus producing a 'false negative' result. The tibia is then drawn forward anteriorly. An increased amount of anterior tibial translation compared with the opposite limb or lack of a firm end-point may indicate either a sprain of the anteromedial bundle or complete tear of the ACL.〔(【引用サイトリンク】title=Anterior Drawer Test )〕 If the tibia pulls forward or backward more than normal, the test is considered positive. Excessive displacement of the tibia anteriorly suggests that the ACL is injured, whereas excessive posterior displacement of the tibia may indicate injury of the posterior cruciate ligament.
==See also==
*Anterior cruciate ligament injury
*Posterior cruciate ligament injury
*Lachman test
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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