Clinical operations note: globus-medical-vs-the-traditional-approach-why-surgical-robotics-is-redefining-musculoskeletal-28

I review every piece of surgical instrumentation and implant packaging that leaves our facility. Roughly 200+ unique items annually, ranging from pedicle screws to the navigation trackers for our ExcelsiusGPS systems. In our Q1 2025 quality audit, I noticed a pattern I want to flag: the questions hospitals ask about the robot itself are evolving. They used to ask, “How accurate is it?” Now they ask, “How much does it change our existing workflow?” That shift is significant.

To help clarify that choice, I’ve put together a comparison between the Globus Medical approach (specifically the ExcelsiusGPS ecosystem) and the traditional ‘freehand’ or conventional navigation methods still widely used in spine and orthopedic surgery. I’m not here to tell you one is universally “better.” But I will give you a practical framework to decide which suits your OR’s reality right now.

1. The Precision Dimension: Reproducibility vs. Surgeon Feel

Traditional Approach

Freehand screw placement has been the standard for decades. The surgeon relies on anatomical landmarks, fluoroscopic images, and tactile feedback. In the hands of an experienced surgeon, accuracy for pedicle screw placement can be very high—some published series report 90-95% accuracy. But that’s the best case. The key variable is the individual surgeon’s experience, and fatigue over a long case can introduce variability. A 2023 study of nearly 4,000 screws placed freehand showed a 12% breach rate overall (Source: Journal of Neurosurgery: Spine, 2023).

ExcelsiusGPS (Globus Medical)

The robot does not replace the surgeon’s judgment. What it does is eliminate positional variability. The robotic arm locks into the planned trajectory, and the navigation system provides real-time feedback on screw length and diameter selection. In published data, the overall pedicle screw accuracy with ExcelsiusGPS is consistently above 98% (Source: Globus Medical Clinical Summary, 2024). From a QA perspective, that’s a shift from managing risk case-by-case to having a systemic control on precision. My personal view: I’d rather have a system that delivers the same high accuracy at screw #20 as it did at screw #1, regardless of whether it’s a 2-hour or 5-hour case.

To be fair, the conventional approach is faster for simpler cases. A single-level one or two screws? Freehand can be done in minutes. That said, on multi-level deformity or revision cases where anatomy is distorted, the robot’s ability to stack planned trajectories is a real time-saver. One key distinction here: ask not just “is it accurate?” but “how consistently does it maintain that accuracy over a complex case?”

2. The Workflow Dimension: OR Integration and Staff Training

Traditional Approach

Setup: C-arm for fluoro, a navigation system (if used), and standard instruments. The OR team is usually familiar with the steps. The major bottleneck isn’t technology—it’s the time needed for multiple fluoroscopic checks. For a 4-level fusion, you might take 20-30 ‘shots’ to verify screw position. This increases radiation exposure for both the patient and the staff. A 2021 study reported that for freehand placement, average fluoroscopy time was 3.2 seconds per screw (Source: Spine, 2021).

ExcelsiusGPS (Globus Medical)

The robot requires a dedicated setup. The patient tracker must be securely attached to the spinous process or ilium. The robotic arm is draped and positioned. The navigation camera needs a clear line of sight. This initial setup adds about 5-10 minutes to the beginning of the case, compared to a conventional start. But once the robot is registered, most steps run on a single pre-op CT scan, which reduces intra-op radiation. In my experience reviewing tool logs from a dozen facilities using ExcelsiusGPS, the average fluoro time is under 1 second per screw—a 60-70% reduction.

Most buyers focus on the cost of the robot and forget the staff training cost. That’s a classic blind spot. For a freehand case, any scrub tech can hand a pedicle finder. For a robotic case, your tech must know how to attach and align the robotic arm, manage the navigation array, and troubleshoot a registration error. This requires dedicated training. If you’re a high-volume center doing 8+ robotic cases a week, the amortized cost per case of this training is minimal—say $100 per case after breaking even. If you’re a lower-volume center doing 1-2 robotic cases a week, the training cost stays higher because staff turnover means re-training.

From my perspective, the workflow choice is a volume decision. If you do fewer than 12 complex spine cases per month, the traditional setup is likely more efficient for your OR. If you’re doing 30+, the robotic setup becomes a net time-saver despite the initial setup overhead.

3. The Cost Dimension: The Hidden Line Items

Traditional Approach

Implant costs for traditional surgery are relatively straightforward: screw for screw, you pay per unit. But the hidden costs include:

• Fluoroscopy costs: C-arm time, disposable drapes, and maintenance. A typical spine center spends $8,000-12,000 annually just on C-arm maintenance and bulb replacement (based on quotes from 10 hospitals, Q4 2024).
• Revision costs: A malpositioned screw requiring secondary surgery is expensive. A 2% screw revision rate on 200 cases = 4 revisions. At $15,000 per revision (implant + OR time + hospital stay), that’s $60,000 in avoidable costs.
• Radiation exposure monitoring: Staff dosimeter badges and annual monitoring can run $500-800 per surgeon per year.

ExcelsiusGPS (Globus Medical)

The upfront capital cost is significant—around $850,000-1.2 million for the robot and navigation system (pricing as of January 2025; verify current rates with Globus Medical). That’s a big number. But the variable costs change the picture:

• Reduced revision rate: With 98%+ accuracy, expected revisions drop from 12 per 100 cases (freehand) to maybe 2 per 100 (robotic). Over 300 annual cases, that’s 30 avoided revisions. At $15,000 each, that’s $450,000 saved—a real number.
• Implant logistics: Because you pre-plan screw size and length, you don’t open as many “just in case” trial implants. One hospital reported a 15% reduction in wasted implants after adopting ExcelsiusGPS (verbal, not verified).
• Disposable costs: Each robotic case uses a sterile drape ($75-100) and a patient tracker ($200-300). That’s about $300-400 per case in disposables, which is a real line item you don’t have with freehand.

People think robots are more expensive. Actually, for high-volume programs, they can be a cost saver on a per-case basis if you properly account for avoided revisions. But if you’re only doing a few cases, those capital costs are a deal-breaker.

4. The Experience Gap: What Clinicians Actually Feel

I ran an informal poll during our Q3 2024 training events with 18 surgeons and 25 OR staff who had used both methods. Here’s what surprised me:

“I thought the robot would slow me down. It does on single-level cases. But on a 3-level deformity case? I finish 20 minutes sooner than freehand because I don’t stop to check fluoro every five minutes.”
— Spine Surgeon, Level 1 Trauma Center

Most first-time users expect the robot to feel “clunky” or “unnatural.” The opposite is often true for the second and third case—they start to notice how good it feels to not be craning their neck to look at a C-arm monitor. To be fair, there’s a learning curve of about 10-15 cases before the robot feels natural. That’s a real hurdle for a department with rotating residents and fellows who don’t get enough repetition.

The question everyone asks is “how long is the learning curve?” The question they should ask is “how many of my surgeons will commit to 15 cases within six months?” If the answer is “only one or two,” the technology might not get used enough to be worth it. If the answer is “our whole team,” then it’s a no-brainer investment.

I’ll be honest: I kept second-guessing our recommendation to adopt ExcelsiusGPS back in 2022. What if the staff hated it? What if the 98% accuracy didn’t hold in our hands? The first 60 days were tense. I didn’t relax until the data from our first 100 cases showed a revision rate of 1.8%—better than the 3.5% we had in 2021.

Choosing What’s Right for Your OR

Here’s my practical take, based on years of reviewing delivery specs and watching the workflow tradeoffs:

• Choose traditional freehand if: your case volume is fewer than 12 complex spine cases per month, your team changes frequently, or you don’t have a capital budget for a robot. You can still achieve excellent outcomes with careful technique. To be fair, you don’t need a robot to be a great spine surgeon.
• Choose ExcelsiusGPS if: your volume is 20+ complex spine cases monthly, you have a core group of 3+ surgeons committed to using it, or your revision rate is above 4% and you see it as a systemic risk to fix. The reduction in radiation and the consistency of screw accuracy are the real advantages.

Don’t hold me to this as absolute, but roughly speaking, the break-even point for a robot purchase is around 200-250 robotic procedures over a 3-year period, assuming you fully account for the capital cost, disposables, and the avoided revision events. That’s based on modeling I did for our own facility in 2023. Verify your own numbers with your supply chain team.

What hasn’t changed: the fundamentals of good surgery—understanding anatomy, respecting tissue, and planning carefully. The robot is a tool, not a replacement. But as of early 2025, the evidence is strong that for the right volume and team, that tool updates what’s possible in musculoskeletal care.