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The basic condylar movements that occur during lateral excursions:
The working side condyle rotates and shifts laterally, and possibly upwards, downwards, forwards or backwards, with the exact movement depending upon the shape of the mandibular fossa.
Bennett movement/side shift/laterotrusion
It refers specifically to the condylar movement that takes place on the working side during lateral excursions.
As the name suggests, this movement is lateral to the initial CR position, but it can also have a forward, backward, upward or downward component, in which case the movement is called lateroprotrusion or lateroretrusion if the direction of travel is to the front or to the back respectively, or laterosurtrusion or laterodetrusion if movement is up or down.
So,hope I am clear that Bennett movement occurs during the earliest stage of lateral movement (AS PERTHE QUE)& the rotation and lateral shift occur together.You can refer to Wheeler'sD.A chapter on TMJ for better understanding.
Hope that helps.
🙂