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Bucket handle meniscus tear. Knee and meniscus locking

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Written by Garotta Lorenzo   
Young or adult patients (35-55 years) can both suffer a medial meniscus tear. Typically the patient is in hyperflexion; when raised forcefully, the meniscus can remain "wedged" by the medial femoral condyle and the bucket handle meniscus tear prevents a complete extension of the knee, because the strip is luxated in the notch. A cracking can be felt by the patient associated with a sharp pain.

This image shows the mechanism which causes the luxation of a bucket handle in the notch. The meniscus has broken along the red line, but it remains attached to the peripheral capsule by the anterior and posterior horn: it thus forms a "bucket handle" shaped tear.

   Image #1          meniscus tear

 
Bucket handle medial meniscus tear, dislocated in the notch. The strip dislocaed in the notch prevents a complete extension of the knee: it is meniscal locking (“true locking”).

      Image #2         manico di secchio
 
  

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Last Updated on Thursday, 30 December 2010 20:42