Robotic Spine Surgery: What Does the Robot Actually Do?
Mr Karpe
Sharing expertise on spine care, treatment advancements, and patient experiences.
If you have been offered robotic-assisted spine surgery, you may wonder who will actually perform the operation. Does the robot insert the screws? Does it make decisions? And what difference does it make to your treatment?.
Does the robot perform the surgery? Does it make decisions independently? Is robotic surgery safer than conventional surgery?
In robotic-assisted spine surgery, the surgeon remains responsible for planning and performing the operation. The robotic system is generally used as an assistance and guidance technology. Depending on the system and procedure, it can help the surgeon with pre-operative planning, positioning surgical instruments and improving navigation during certain parts of an operation.
The robot does not replace the spinal surgeon’s clinical judgement.
What Is Robotic Spine Surgery?
Robotic spine surgery refers to spinal procedures in which a robotic system assists the surgeon.
The technology used can vary by hospital, procedure, and robotic platform. Some systems are designed primarily to assist with planning and positioning, while others integrate navigation and imaging technologies.
Robotic assistance can be particularly relevant to procedures in which screws or other implants need to be placed accurately.
It is therefore important to understand that “robotic spine surgery” is not one single operation. It refers to using robotic technology as part of a surgical procedure.
The underlying operation may still be a procedure such as spinal fusion or another form of spinal surgery.
Does the Robot Actually Perform the Surgery?
The exact role depends on the robotic platform and the procedure.
A robotic system may assist with several stages of surgery.
1. Surgical Planning
Before surgery, imaging such as CT scans may create a three-dimensional representation of the patient’s spinal anatomy.
The surgeon can use this information to plan aspects of the operation.
For example, when spinal instrumentation is required, the surgeon may plan the position and trajectory of screws before the procedure.
This planning can help create a surgical roadmap.
2. Positioning and Guidance
During surgery, the robotic system can help guide the surgical instruments according to the planned trajectory.
Rather than relying solely on visual estimation, the surgeon can use the robotic system, along with navigation and imaging technology, to maintain the planned position.
The surgeon remains involved throughout this process.
3. Implant Placement
One of the most established applications of robotic assistance in spine surgery is helping place spinal implants, particularly pedicle screws used during spinal fusion procedures.
The system can help the surgeon follow a planned trajectory based on the patient’s anatomy.
The surgeon still inserts and manages the instrumentation and makes the final decisions.
4. Intraoperative Navigation
Some robotic systems work alongside navigation technology.
Navigation can give the surgical team information about the location of instruments and implants relative to the patient’s anatomy.
This can be especially useful when the anatomy is complex or when precise implant positioning matters.
What Is the Difference Between Robotic Surgery and Navigation?
Robotics and navigation are related technologies, but they are not the same thing.
Navigation provides information about where the surgical instruments and relevant anatomy are located.
Robotic assistance can use that information to help guide or position surgical instruments according to the surgeon’s plan.
In some systems, these technologies are integrated.
A surgeon may therefore use imaging, navigation and robotic assistance together rather than relying on the robot alone.
Why Is Accuracy Important in Spine Surgery?
The spine contains important structures, including the spinal cord and nerve roots.
When placing spinal implants, the surgeon needs to understand the patient’s individual anatomy.
The position and trajectory of an implant can be particularly important when screws are being placed close to neural structures and other important anatomy.
Robotic and navigation technologies are designed to assist with planning and execution, potentially helping the surgeon achieve the intended trajectory.
However, technology does not eliminate the need for careful surgical judgement.
Is Robotic Spine Surgery More Accurate?
One of the main reasons robotic systems have attracted interest in spine surgery is their potential to improve the accuracy and reproducibility of implant placement.
Studies have reported high levels of accuracy for robot-assisted spinal instrumentation in selected procedures. However, accuracy can vary by technology, surgical technique, procedure, patient anatomy, and how accuracy is defined.
Therefore, it would be misleading to suggest that a robotic system guarantees perfect implant placement.
Robotic assistance is a tool the surgical team uses, not a guarantee of a particular surgical outcome.
Is Robotic Spine Surgery Safer?
Robotic assistance and navigation are intended to help surgeons plan and perform certain procedures accurately. They may have potential benefits in selected operations.
The team must check that the imaging, navigation and robotic guidance remain accurate throughout their use. If there is uncertainty, the surgeon can reassess, obtain further imaging or use another technique.
Spinal surgery has risks regardless of whether robotic technology is used. These can include complications related to anaesthesia, infection, bleeding, nerve injury, implant problems and other procedure-specific risks.
The presence of a robot does not remove these risks.
The decision to use robotic assistance should therefore be based on the clinical situation rather than the technology itself.
Does Robotic Surgery Mean Smaller Incisions?
Yes and No
Robotic assistance can allow smaller incisions and can be minimally invasive.
The size and location of the incision depend on the operation being performed, the surgical approach and the patient’s individual anatomy.
Can Robotic Spine Surgery Reduce Blood Loss or Recovery Time?
Some studies have reported potential advantages associated with robotic-assisted techniques, including surgical efficiency, implant placement, and perioperative outcomes in selected procedures.
However, it would be inappropriate to promise a shorter recovery or lower blood loss simply because a robot is being used.
Recovery depends on many factors, including:
- The type of operation
- The number of spinal levels treated
- The patient’s general health
- The underlying spinal condition
- Surgical approach
- Complications, if any
- Rehabilitation
The expected recovery should therefore be discussed in relation to the specific procedure, not the presence of robotic assistance alone.
What Happens During Robotic Spine Surgery?
The exact process depends on the procedure and technology being used.
A typical workflow may involve several stages.
Before Surgery
The surgeon reviews the patient’s clinical history and imaging to determine whether surgery is appropriate.
Where required, imaging may be used to create a detailed surgical plan.
The surgeon can then plan aspects of the procedure, including implant positioning when relevant.
During Surgery
The patient is positioned for the operation, and the surgical system is set up.
The robotic system is registered or aligned with the patient’s anatomy, depending on the technology used.
The surgeon then performs the procedure using the robotic system and other surgical and navigation equipment as appropriate.
Implant Placement
If spinal instrumentation is required, the robotic system may help guide the planned trajectory for implant placement.
The surgeon remains responsible for the procedure and confirms that the planned approach is appropriate.
Completion of the Operation
Once the planned surgical work has been completed, the instruments are removed, and the operation is closed according to the procedure being performed.
The patient then enters the usual post-operative recovery process.
What Does the Surgeon Do If the Robot Is Involved?
This is one of the most important points for patients to understand.
The surgeon does not simply “press a button” and allow the robot to perform the operation.
The surgeon is responsible for:
- Patient selection
- Surgical decision-making
- Planning
- Interpreting imaging
- Setting the surgical objectives
- Operating the instruments
- Assessing anatomy during surgery
- Responding to unexpected findings
- Deciding whether the planned approach remains appropriate
The robotic system supports these processes but does not replace the surgeon.
What Happens If the Patient's Anatomy Is Different From the Plan?
No surgical plan can account for every possible situation.
The surgeon continuously assesses the patient and the operative field during surgery.
If the anatomy or circumstances differ from what was anticipated, the surgical team can adapt the approach.
This is another reason robotic spine surgery should be understood as robot-assisted surgery, not autonomous surgery.
Clinical judgement remains essential.
Is Robotic Spine Surgery Suitable for Everyone?
No.
Robotic assistance is not required for every spinal operation, and not every patient is an appropriate candidate for a robotic-assisted procedure.
The suitability depends on factors such as:
- The spinal condition being treated
- The planned operation
- The need for spinal instrumentation
- The patient’s anatomy
- Previous spinal surgery
- Available technology and surgical expertise
- The potential benefits and limitations of the technique
The surgeon should explain why a particular surgical approach is being recommended and whether robotic assistance has a meaningful role in that procedure.
Robotic Spine Surgery vs Conventional Spine Surgery
It is tempting to view robotic surgery and conventional surgery as two completely separate forms of treatment.
In reality, the distinction often comes down to how technology assists the surgeon, rather than whether the underlying operation is fundamentally different.
For example, a spinal fusion procedure may still involve the same fundamental surgical objectives whether or not robotic assistance is used.
The robotic system can change planning, navigation, and instrumentation without changing the underlying reason the patient requires surgery.
What Are the Limitations of Robotic Spine Surgery?
Robotic technology has potential advantages, but it also has limitations.
These include:
- Not every spinal procedure requires robotic assistance
- Different robotic systems have different capabilities
- Technology does not eliminate surgical risks
- Accurate planning remains dependent on appropriate imaging and clinical assessment
- Unexpected anatomy can require the surgeon to modify the surgical plan
- The technology does not replace surgical expertise
- Availability can vary between hospitals and surgical centers
A technologically advanced system is only one part of a successful surgical process.
Is Robotic Spine Surgery Better Than Traditional Surgery?
There is no universal answer.
The value of robotic assistance depends on the particular procedure, patient and surgical objective.
For some operations, robotic and navigation technology may provide useful assistance with implant planning and placement. In other situations, robotic technology may offer little additional benefit.
The most appropriate treatment is not necessarily the most technologically advanced option.
Instead, the important questions are:
- Is surgery actually necessary?
- What operation is being recommended?
- Why is that operation appropriate?
- What are the alternatives?
- What role will robotic or navigation technology play?
- What are the risks and expected benefits?
These questions are more important than simply asking whether a procedure is “robotic”.
Questions to Ask Your Surgeon About Robotic Spine Surgery
If robotic assistance has been recommended, consider asking:
What is the robot being used for?
Ask which part of the operation the robotic system will assist with.
Is robotic assistance necessary for my procedure?
The surgeon should be able to explain what additional role the technology has in your particular case.
What operation am I actually having?
Understanding the underlying operation is more important than the technology used to perform it.
What are the alternatives?
Ask whether the same surgical objective can be achieved using another technique and why one approach is being recommended.
What are the risks?
Robotic assistance does not eliminate the normal risks associated with spinal surgery.
How will the robot affect my recovery?
Ask about recovery based on the specific operation rather than assuming that robotic assistance automatically means a faster recovery.
The Future of Robotic Spine Surgery
Robotic and navigation technologies continue to develop.
As imaging, navigation, planning software and surgical systems improve, their applications in spinal surgery may expand.
However, technological development does not change an important principle: technology assists clinical decision-making and surgical execution, not the surgeon’s judgement.
Future research will continue to help determine where robotic assistance provides meaningful benefits and which patients and procedures are most likely to benefit.
Conclusion
Robotic spine surgery does not mean a robot performs an operation independently.
In robotic-assisted spinal procedures, the surgeon remains responsible for assessing the patient, planning the operation, making clinical decisions and performing the surgery. Depending on the system and procedure, robotic technology can assist with planning, navigation, instrument positioning and implant placement.
The technology can be valuable, particularly for procedures that require accurate planning and instrumentation. However, robotic assistance does not make spinal surgery risk-free, does not guarantee a particular outcome and is not necessary for every patient.
If you are considering spinal surgery, the most important question is not simply whether a robot will be used. It is why surgery is recommended, what procedure is being proposed, what alternatives exist and what role the technology will play in your individual treatment.
If you have been advised that you may require spinal surgery and want to understand your treatment options, Mr Prasad Karpe, Consultant Spinal Surgeon, can assess your condition and discuss whether surgery, robotic assistance or another treatment approach is appropriate for your individual circumstances.
Disclaimer
This article is for informational purposes only and does not replace professional medical advice, diagnosis, or treatment. Disability status and treatment recommendations depend on individual medical assessment and symptom severity.