The integration of robotics into the operating theatre represents one of the most significant technological advancements in modern surgery. From a conceptual aid to an indispensable tool, robotics has reshaped procedures across numerous specialities, including orthopaedics. The evolution of robotic systems for joint replacement marks a fundamental shift in surgical philosophy, moving Total Hip Arthroplasty (THA) from autonomous action to intelligent, surgeon-led enhancement.
This advanced surgical approach represents a convergence of medical expertise and technological precision, and its growing adoption in Singapore is setting even higher standards for orthopaedic care. It addresses a critical need, as conditions like osteoarthritis and other degenerative hip issues affect a significant portion of the population, limiting mobility and diminishing the quality of life for active adults and athletes alike.
Historical Overview of Robotic Hip Surgery
Historical Overview of Robotic Hip Surgery
Total Hip Arthroplasty (THA), commonly known as hip replacement, is a surgical procedure to alleviate chronic hip pain and restore mobility. In Singapore, an established global hub for medical innovation, THA is increasingly performed with the aid of robotic technology. Robotic-assisted hip replacement enhances the surgeon’s precision but does not replace their expertise; the surgeon remains in complete control of the procedure.
The first documented use of a robot in a surgical procedure occurred in 1985, when a PUMA robotic arm was employed to perform a stereotactic brain biopsy, guided by computed tomography (CT). This landmark event established the foundational value of surgical robotics: the ability to execute tasks with a level of precision beyond human capability, thereby enhancing accuracy in delicate manoeuvres.
In the late 1980s and early 1990s, systems like the PROBOT® were developed for urological procedures. Additionally, the AESOP® robotic arm, approved by the U.S. Food and Drug Administration (FDA) in 1990, was created to hold and position endoscopic cameras during laparoscopic surgery.
Robotic Hip Surgery Systems Evolution
Robotic Hip Surgery Systems Evolution
A milestone in the development phase of the “master-slave” telemanipulation systems is the Da Vinci Surgical System®, particularly in the fields of urology and gynaecology. The principles of robotic precision were a natural fit for orthopaedic surgery, where the accuracy of bone cuts and implant placement is paramount to the long-term success of a joint replacement.
The first generation of orthopaedic robots, introduced in the 1990s and 2000s, were classified as “active” systems. These platforms, including the ROBODOC® and CASPAR® systems, operated with a high degree of autonomy. Based on a detailed pre-operative plan generated from CT scans, the robot would autonomously execute the bone preparation once the surgeon had achieved the necessary surgical exposure. The surgeon’s role was primarily supervisory, monitoring the robot’s progress and ready to intervene if necessary. Singapore General Hospital (SGH) was an early adopter of this technology, utilising the ROBODOC® system, which was capable of milling bone with an accuracy of 0.02mm—finer than a human hair.
Limitations of active robotics led to the “semi-active” or haptic-guided systems prevalent in modern robotic arthroplasty. This shifted the human-machine dynamic, positioning the robot as an intelligent tool under the surgeon’s direct control. These systems allow surgeons to physically guide the robotic arm while receiving real-time data and haptic feedback, preventing deviation from the pre-planned surgical area.
How Precision Translates to Patient-Reported Success
How Precision Translates to Patient-Reported Success
The enhanced precision of robotic assistance translates into measurable benefits for patient quality of life, according to a 2024 meta-analysis. This research found that while some traditional metrics showed little change, patients who underwent robotic-assisted procedures reported statistically significant improvements in crucial scores like the Forgotten Joint Score (FJS) and the Oxford Hip Score (OHS).
The FJS is particularly telling, as it measures how natural the new joint feels in daily life. The notable improvement suggests that the superior biomechanical accuracy achieved with robotics results in a hip that functions more like a native joint—an outcome that profoundly enhances a patient’s experience and satisfaction.
The same meta-analysis found that the difference in surgical duration between robotic and conventional procedures was minimal and not statistically significant. Furthermore, while conventional hip replacement is already a clinically proven and evidence-backed safe operation, the precision of robotics may help reduce specific execution-related errors. The ultimate goal of this accuracy is to improve implant longevity. While long-term data is still maturing, the scientific consensus is that more accurate implant placement is expected to lead to improved durability.
Choosing the Right Orthopaedic Care in Singapore
Choosing the Right Orthopaedic Care in Singapore
While advanced technologies like robotic-assisted surgery represent a significant leap forward in orthopaedics, the ultimate success of any procedure rests firmly in the hands of the surgeon. The technology is a powerful tool, but its potential is only fully realised by a skilled and experienced specialist. Therefore, choosing the right orthopaedic care in Singapore involves more than just selecting the latest equipment; it requires finding a surgeon whose expertise and judgement you can trust to achieve the best possible outcome.
An orthopaedic specialist will assess your condition through a physical exam and imaging, such as an MRI, to determine the right course of action. Do note, however, that this blog is for informational and educational purposes only, and any decisions regarding medication or medical treatments must be made only after a thorough consultation with a qualified medical professional.
In selecting an orthopaedic surgeon, prioritise practitioners recognised by leading orthopaedic organisations, as this frequently reflects a depth of experience and dedication to current best practices. It may also be beneficial to explore their involvement in scholarly activities, including any published research or case studies. If the opportunity arises, obtaining feedback from previous patients about their experiences with the specific knee operation can aid your decision.
For professional and personalised care, consider A/Professor Andrew Quoc Dutton, a Harvard-Fellowship-trained orthopaedic surgeon with over 20 years of experience. Dr Dutton is also a Fellow of the American Academy of Orthopaedic Surgeons (AAOS) and a member of the American Association of Hip and Knee Surgeons (AAHKS). These international memberships are listed for informational purposes only.
To schedule a consultation, please get in touch with our clinic at (+65) 6836 8000.
SOURCES:
- History of robotic surgery: from AESOP® and ZEUS® to da Vinci® |
- Robotics in Arthroplasty: Historical Progression, Contemporary Applications, and Future Horizons With Artificial Intelligence (AI) Integration – PMC,
- Robotic-Assisted Hip and Knee Arthroplasty: A Bibliometric Analysis Using the Scopus Database – PMC,
- History and the future of Robotic Surgery | Urology & Prostate Cancer Physician located in Central Midtown, New York and East Hills, NY | David B Samadi, MD,
- Minimally Invasive Surgery (MIS) in Urology – SingHealth,
- Robotics in total hip arthroplasty: a review of the evolution, application and evidence base,
- Adult Reconstruction Service | Singapore General Hospital,
- MAKO robotic-assisted compared to conventional total hip arthroplasty for hip osteoarthritis: a systematic review and meta-analysis – PMC,
- Robotic Surgery – MAKOplasty Singapore – IOC Ortho,
- ROSA Robotic Knee Replacement – Dr Nicholas Frisch,
- Robotic vs Traditional Hip Replacement Surgery – OrthoBethesda,
A/Professor Andrew Quoc Dutton Orthopaedic & Sports Clinic Insurance
The A/Professor Andrew Quoc Dutton Orthopaedic & Sports Clinic offers minimally invasive and surgical treatments for sports-related injuries and orthopaedic conditions.
To aid in the expenses that you may incur, we accept a number of corporate and international insurance. If you have any of the insurance plans below, please let us know when you book an appointment with us. If you need further assistance, you may drop us an e-mail at info@eliteortho.com.sg or call us at (+65) 6836 8000.
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