CATRA now offers this very lightweight, easily used, hand held laser goniometer to measure the included sharpened angle(s) of all types of knife blades. The device operates by reflecting a low powered laser beam from the facets of a cutting edge. Joint Range of Motion Data Using a Goniometer Goniometers available from www.aokhealth.com Introduction Joint flexibility is defined as the range of motion (ROM) allowed at a joint. A joint's ROM is usually measured by the number of degrees from the starting position of a segment to its position at the end of its full range of the movement. Buy Goniometer 3 Piece Set 12", 8", 8" Spinal: 3 Pieces EGM-428 on Amazon.com FREE SHIPPING on qualified orders Baseline® 6-Piece clear plastic goniometer kit includes 1 each 12", 8" and 6" 360° goniometers; 1 each pocket 180° goniometer, 360° rulongmeter and finger flexion/hyper-extension goniometer. Transparent plastic goniometer permits observation of joint's axis of motion, and its range of motion. Active movement may be assessed by the use of a goniometer (Figure 11.3) or, alternatively, by visual estimation. It is measured in degrees and it is useful to practise using the goniometer by measuring the hip, knee and ankle joints in various positions. Either the 360° or 180° universal goniometers may be used. Ensure adequate stabilisation 4 Look at the reading on the goniometer before removing it from the patient's body. Make sure that you take an accurate reading of the degree of motion on the goniometer, and that you consistently use the same stationary and movable landmarks on the body when measuring, to ensure consistency. Be sure to record the range of motion for the joint. Amounts shown in italicized text are for items listed in currency other than U.S. dollars and are approximate conversions to U.S. dollars based upon Bloomberg's conversion rates. How to Use Goniometer. A goniometer is an instrument used to measure angles. While you can technically use this tool