1. Basic Knee Arthroscopy Part 1: Patient Positioning
Benjamin D. Ward, M.D., James H. Lubowitz, M.D. 
Arthroscopy Techniques 
Volume 2, Issue 4, Pages e497-e499 (November 2013)
DOI: /j.eats
Copyright © 2013 Arthroscopy Association of North America Terms and Conditions

2. Fig 1
(A) For knee arthroscopy, the patient is positioned prone with the heels aligned with the end of the table to facilitate access by the surgeon and assistant. (B) The patient's pelvis is then moved to the very edge of the operating table to provide the best leverage for positioning the leg against the leg holder or post.
Arthroscopy Techniques 2013 2, e497-e499DOI: ( /j.eats )
Copyright © 2013 Arthroscopy Association of North America Terms and Conditions

3. Fig 2
A varus or valgus force may be applied to the knee by the use of 1 of 2 devices. In this figure the patient is prone with the head to the right. A tourniquet has been placed over cotton padding. (A) The circumferential leg holder, in orange, is placed around the upper thigh. The foot of the operating table is dropped, allowing a direct varus and valgus force to be applied. (B) The lateral post, in gray, is placed approximately 5 cm proximal to the proximal pole of the patella. A direct valgus force is applied against the post for viewing the medial compartment. A varus force is applied by dropping the post and placing the leg in a figure-of-4 position. The arrow marks the button that is pressed to lower the post.
Arthroscopy Techniques 2013 2, e497-e499DOI: ( /j.eats )
Copyright © 2013 Arthroscopy Association of North America Terms and Conditions