Which classification of powered surgical saw cuts via a side-to-side motion of the blade and is commonly used to perform femoral chamfer cuts during total knee arthroplast

Saggital saw.

Explanation:

A saggital saw is a specialised saw used by orthopedic surgeons in bone resection. The blade of a saggital saw oscillates through a small angel, this helps to prevent causing damage to surrounding tissue, this results in the reduction of cutting rate due to short stroke length. A saggital saw oscillates at 10,000- 20,000 per minutes. Saggital bone saw with orbital blade motion is aimed at improving efficiency in cutting.

Sean follows the psychodynamic approach.

Explanation:

Psychodynamics is a psychological approach that explores the forces that constitute human behavior, feelings, actions and emotions. Advocates of this approach want to find a connection between our early experiences and certain patterns of behavior. During psychodynamic psychotherapy, the goal is for patients to become aware of the conflicting parts of their psyche, and to gradually reduce tension. In this example, Sean wants his client to become aware of the relationship between his/her childhood experiences and present anxiety, and thus takes the psychodynamic approach.