I. INTRODUCTION
Laser osteotomy consists in accurately cutting or ablating bone tissues thanks to a laser. The fact of using a laser offers multiple advantages in comparison to the traditional mechanical tools (saws, drills or mills) currently used for osteotomy [1]. Indeed, the friction induced by mechanical tools can cause trauma and thermal damage to the surrounding tissues. These trauma are reduced when using a laser for osteotomy because there is no direct contact with the bone. Moreover, the use of a laser offers free cut geometries whereas the size and shape of traditional mechanical tools limits the cut geometry to straight cuts or large radii cuts. However, despite the advantages it offers, laser is not currently used for osteotomy. Indeed, the obtainable precision in cutting with a laser system can only be reached using means of computer and robot assisted surgery. Thus, for the practical medical adoption of the laser osteotomy, an online control system for the cut has to be developed.