Improvement of the LPG-D probe with sensors and electronics for the objective assessment of burn scars in pediatric cases

Objective assessment of burn scars is critical for monitoring treatment efficacy and improving the quality of regenerated skin, particularly in pediatric cases where scar management is critical for long-term healing. In this context, this study presents an improvement with the introduction of sensors in the LPG-D (Louis Paul Guitay Device) probe, which was developed in the T3Ddy laboratory with the primary goal of objectively assessing burn scar pliability. The central component of the new prototipe is the incorporation of a magnetic encoder-based position detection system, which improves the accuracy and reliability of the pliability assessment. Through rigorous testing, including evaluation of maximum acquisition rate, repeatability of sensor measurements, and suction effect, the study demonstrated the device's ability to provide an accurate and reliable objective assessment of scar pliability. This advancement is very promising for improving the management of burn scar treatments in pediatric patients, enabling clinicians to make more informed decisions based on objective data. In addition, the study proposes a new software platform that integrates an angular encoder and a distance sensor, enabling simultaneous data reading and analysis. Taking advantage of the versatility and efficiency of the Python programming language, the software facilitates the interpretation of the device's position on the scar and its pliability, providing clinicians with useful information for treatment optimization.