Medical imaging introduced the greatest paradigm change in the history of modern medicine, and particularly ultrasound (US) is becoming the most widespread imaging modality. The integration of digital imaging into the surgical domain opens new frontiers in diagnostics and intervention, and the combination of robotics leads to improved accuracy and targeting capabilities. This paper reviews the state-of-the-art in US-based robotic platforms, identifying the main research and clinical trends, reviewing current capabilities and limitations. The focus of the study includes non-autonomous US-based systems, US-based automated robotic navigation systems and US-guided autonomous tools. These areas outline future development, projecting a swarm of new applications in the computer-assisted surgical domain.