Laser goniometer: smartphone goniometer with laser guidance for range of motion measurement in musculo- skeletal medicine

Musculoskeletal disease is a common clinical problem, part of the physical examination of these body systems is the range of motion measurement of the joints. Current clinical tools for estimation of this parameters are visual estimation and the universal goniometer, With the advent of less expensive smartphones and widespread sensor availability, there was the development of a great number of apps that allowed the use of a smartphone as a goniometer. The purpose of this paper is to document research developments of creating a laser-aided goniometer with a smartphone, and suggests to create a business opportunity from this idea.