A software program intended to display, analyse/process, and possibly acquire images of a limb bone(s), rib(s), the sternum and/or pelvis (excludes craniofacial and spinal), typically acquired via computed tomography (CT) or fluoroscopic x-ray, primarily to assist with the navigation/positioning of surgical instruments, implants, and/or the patient during orthopaedic surgery [computer assisted surgery (CAS)]. It does not incorporate adaptive/dynamic machine learning (ML) models.