Robotic knee replacement in Querétaro, Mexico: what to expect

If you've been told you need a knee replacement, you probably have many questions: what does the surgery involve? How long is the recovery? What technology is available? In this guide, I explain what robotic knee surgery is, how the system I use in Querétaro works, and why precision in implant placement makes a real difference in your outcome.

What is a knee replacement?

A total knee replacement (also called total knee arthroplasty) replaces the damaged surfaces of the femur and tibia with metal components, with a polyethylene insert between them that allows pain-free movement.

It's indicated when osteoarthritis (cartilage wear) has progressed to the point where pain limits everyday activities like walking, climbing stairs, or sleeping, and conservative treatments no longer provide sufficient relief.

What is robotic knee surgery?

Robotic knee surgery does not mean a robot operates on you. The surgeon performs the entire operation. The robotic system is a precision tool that assists the surgeon at two critical moments:

• Before the cuts: it creates a three-dimensional model of your knee to plan the exact implant size, cutting angles, and optimal alignment.
• During the cuts: it guides bone cuts with sub-millimeter precision and monitors ligament balance in real time.

In my practice, I use the CORI system by Smith+Nephew with Anthem implants. CORI has an important advantage: it doesn't require a preoperative CT scan. The 3D planning is generated intraoperatively, directly from your anatomy in the operating room. This simplifies preparation and allows real-time adjustments.

How it works: step by step

1. Office evaluation

We review weight-bearing X-rays to confirm the degree of arthritis, assess deformity (varus or valgus), and determine whether replacement is the best option. Not everyone with "wear" needs surgery.

2. Prehabilitation

Before surgery, we optimize your condition: weight management, blood sugar and blood pressure control, quadriceps strengthening, and inflammation management. A better-prepared patient recovers faster.

3. In the operating room with CORI

Under regional anesthesia:

• Sensors are placed on the femur and tibia so the system can map your knee anatomy
• CORI generates the 3D model and proposes the plan: implant size, cutting angles, alignment
• The surgeon reviews, adjusts if needed, and executes the cuts with robotic guidance
• Each cut is verified against the plan in real time
• Ligament balance is assessed and fine-tuned before cementing the components

4. Recovery (ERAS protocol)

With the ERAS (Enhanced Recovery After Surgery) protocol, most patients are standing and walking with a walker within the first 24 hours. Hospital stay is 1–2 days. Formal rehabilitation begins immediately and is guided by functional milestones, not arbitrary timelines.

Robotic vs. conventional: what's different?

Current evidence shows that robotic assistance improves component placement accuracy, which is associated with better short-term function and potentially greater implant longevity. However, I want to be transparent: technology doesn't replace surgeon experience. A robot in the hands of a surgeon without joint replacement expertise doesn't guarantee good outcomes.

Who is a candidate?

Any patient who is a candidate for total knee replacement can benefit from robotic assistance. It's especially useful for:

• Severe deformities (varus or valgus greater than 15°) where precision is critical
• Younger patients (under 65) where preserving bone matters for a potential future revision
• Patients with prior hardware in the ipsilateral femur (nail, plate, hip replacement) where conventional intramedullary guides can't be used
• Atypical anatomy where standard planning may not fit well

For international patients

I regularly treat expats and visitors from the U.S. and Canada living in Querétaro and San Miguel de Allende. Here's what you should know:

• Communication: I speak English and all pre-op instructions, consent forms, and post-op care plans can be provided in English
• Cost: Robotic knee replacement in Querétaro costs a fraction of what you'd pay in the U.S. — even without insurance. We provide a written quote before surgery
• Insurance: We work with major Mexican private insurance carriers. If you have international or U.S.-based insurance, we can provide documentation for reimbursement
• Follow-up: We coordinate post-operative rehabilitation locally and can share records with your physician back home

Frequently asked questions

Does a robot operate on me?

No. The surgeon performs the entire operation. CORI is a tool that guides and verifies the cuts — similar to how GPS guides a driver, but the surgeon remains in full control.

Is it more or less painful than conventional surgery?

Most patients report equal or less post-operative pain with robotic assistance, likely because more precise cuts cause less soft tissue damage. We also use a multimodal pain management protocol that minimizes the need for strong opioids.

How much does it cost?

Cost depends on the hospital and insurance status. Robotic surgery has an additional cost over conventional technique, but is covered by most Mexican insurance carriers. We provide a written quote at your consultation.

How long is recovery?

Most patients walk with a walker within 24 hours. Hospital stay is 1–2 days. Rehabilitation lasts 6–12 weeks. Full return to daily activities is typically 2–3 months.

How long does the implant last?

With current implants and precise placement, 15–20 year survival exceeds 90%. Robotic precision may contribute to greater longevity by optimizing alignment and balance.

Dr. Mario Luis Balcázar Ganem

Board-certified orthopedic surgeon subspecializing in joint surgery, arthroscopy, and sports injuries. Dual fellowship trained (UNAM/National Rehabilitation Institute). Practicing in Querétaro, Mexico.

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