Talus: Prototype of a Portable Continuous Passive Motion Physical Therapy Device for Ankle Trauma

Abstract

Excessive stretching or rotation during daily movements can cause joint traumas that impair quality of life. These traumas are common in ankle joints, which bear the weight of the body, and can present as sprains, dislocations or fractures, causing pain and limited movement. Physiotherapy methods and technologies are used to restore optimum neuromusculoskeletal function. Continuous passive motion is a method used to prevent joint stiffness and calcification in joint surgery cases by providing repetitive movement of the joint. Physical therapy devices utilizing this technology allow for controlled repetition, speed, power, and angle. In this study, a prototype called Talus was developed that can deliver continuous passive motion physiotherapy at an adjustable angle, in real time or autonomously, after ankle joint trauma or surgery, and record application and patient information. Nextion was utilised to input patient information, determine movement angles, select the operating mode, and display recorded patient and treatment data. The information was recorded and the servo motors on the relevant axes were controlled using Arduino Mega. Talus allows for personalised treatment to be administered at home.