What is the name of the ruler device called that a physical therapist use to measure a knee extension and flexion? What is used to measure full range of motion after ACL knee surgery?
Answer Question
The ruler that is most commonly used by physical therapists to measure range of motion is called a Goniometer. The instrument is used to measure the angle at a joint. Goniometers will show the degrees of an angle from zero to 180 or 360 degrees. Commonly used is a 12" Goniometer for measuring extension and flexion in a knee. Smaller sizes are used for measuring various other the joints in the human body. There are various Goniometers at amazon. There are also Gonionmeter apps now available for your iPhone.
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