The patient can stand with the affected leg's toe aligned with the the arrow line on the tracking grid, wearing the small strap and parallel mount 2" above the patella. The patient is instructed to straighten their knee fully, and the laser is then adjusted to their laces, or to the toe: the patient is then instructed to repeatedly flex and straighten their knee, while trying to move the laser further up their laces. This is an excellent exercise for any patient lacking full knee extension.
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