Is it still a distant goal?
Integrating robotic surgery into modern medical practice is gaining momentum, with consistently positive outcomes validating its value. But what about autonomous robotic surgery? Is it still a distant goal, or are we closer to achieving it than we think?
A recent study from Johns Hopkins University showcased the capabilities of the Hierarchical Surgical Robot Transformer (SRT-H). Trained by analyzing recordings of surgeons operating on pig cadavers, the system autonomously performed key steps in gallbladder removal across eight trials on a realistic anatomical model. The SRT-H was tasked with the most intricate phase of the surgery and while the procedure took a little longer, it demonstrated a strong ability to adapt to patient-specific anatomy and completed the procedures with accuracy and autonomy.
Equipped with advanced 3D imaging, the system scanned the abdominal cavity and responded to voice commands. It executed 17 complex maneuvers flawlessly adjusting in real time to visual and auditory stimuli, and achieving a 100% success rate with expert-level precision.
Breakthrough in Robotic Autonomy
Axel Krieger, senior lecturer in mechanical engineering at Johns Hopkins and lead researcher, calls the achievement a major milestone in robotic surgery. Unlike earlier efforts that focused on isolated tasks such as suturing, this trial involved a complete gallbladder removal procedure.
Senior research partner and surgeon Dr. Jeff Jopling draws a parallel between gradual skill acquisition in human surgical training and the development of autonomous systems, suggesting that robots could master individual tasks incrementally before progressing to full procedures.
Krieger’s team previously developed the Smart Tissue Autonomous Robot (STAR), which performed an intestinal suture on a pig in 2022. Since then, the system has undergone significant upgrades. While the hardware remains largely unchanged, its “new brain”—a more advanced AI model—now enables it to understand verbal instructions, learn visually, and adapt to dynamic surgical environments, improving precision and enhancing patient outcomes.
Expert Perspectives from Rambam
Dr. Eylon Lahat, senior physician in the General Surgery Unit at Rambam Health Care Campus, emphasizes the complexity of surgical autonomy: “You can compare it to an autonomous vehicle, but the surgical system is more advanced and sophisticated,” he explains. Unlike GPS-guided cars facing a limited range of scenarios, robotic surgery must handle unpredictable, patient-specific events. “Every surgery is different. The potential is tremendous, but needs to be refined.” Situations such as cardiac events or systemic failures require a human surgeon ready to intervene and complete the operation.
While Lahat embraces the enthusiasm surrounding robotic progress, he emphasizes that we must have realistic expectations. “This tool is excellent, but we need to understand its limitations and be critical of it,” he cautions. Full integration of autonomous systems into operating rooms will take years. “We’ll never reach the stage where we say that we no longer need surgeons, but I envision a future where fewer surgeons can oversee and manage multiple procedures simultaneously.”
Future Challenges and Opportunities
Despite flawless lab performance, regulatory approval for use in living patients will require rigorous validation. The research team plans further testing on cadavers and experimental animals in environments that simulate emergency rooms. They are also addressing potential real-time issues that could interfere with the robot’s imaging capabilities and compromise surgical accuracy.
As robotic surgical capabilities advance, ethical and legal questions become increasingly important. Regulatory frameworks must evolve to define accountability before autonomous procedures on live patients can proceed.
Lahat reiterates that today’s robotic systems still function primarily as aids. They follow preset instructions precisely, but cannot yet interpret surgical contexts or make independent decisions. Until patient safety can be clearly defined and protected, autonomous surgery will remain an experimental pursuit.
