Abstract: The efficacy and safety of laser medical treatments are ensured by performing a combination of measurement techniques to examine tissue properties in order to control characteristics of the laser treatments of cartilaginous tissues. In some aspects, a treatment tool is provided that is capable of taking and providing feedback relating to multiple measurements, including temperature measurements (in particular, radiometry), mechanical measurements, light scattering, speckle interferometry, optoacoustic measurements, and monitoring tissue electrical characteristics. The device is capable of providing feedback during the course of laser treatment of tissue to increase the safety and efficacy of treatment.