Modular patient positioning system

A modular patient positioning system, comprising:

• a first pegboard having at least one first pegboard hole defined therein;
• a second pegboard directly, rotatably coupled to the first pegboard and having at least one second pegboard hole defined therein, the first pegboard and second pegboard lying along a common plane in a first configuration and the first pegboard and second pegboard lying along different planes in a second configuration, whereby a first body portion and a second body portion of a patient's body may be positioned and supported in different planes by having the first pegboard support the first body portion and the second pegboard support the second body portion;
• and
• a leg positioner including a mounting structure for mounting the leg positioner on the second pegboard and positioning a leg in a predetermined position relative to the second pegboard, the mounting structure of the leg positioner allows for adjusting at least one of axial rotation, abduction/adduction, elevation/depression, or flexion/extension of at least a portion of the leg.