Robotic Partial Knee Replacement

By Dr. Ashok Kr. Dhar in Orthopaedics & Joint Replacement

Apr 14, 2026

Robotic Partial Knee Replacement: The Future of Precision Orthopedics

Preserving Nature, Restoring Mobility at Metro Hospitals

Joint replacement has evolved from “one-size-fits-all” to high-definition personalization. Robotic Partial Knee Replacement (PKR) is a revolutionary approach for patients with localized arthritis, allowing surgeons to repair only the damaged portion of the knee while leaving healthy bone and ligaments—like the ACL—completely intact.

With robotic-assisted procedures now accounting for 11% of knee surgeries globally, Metro Group of Hospitals is leading the charge in India, utilizing the latest robotic platforms to deliver sub-millimeter precision and faster recovery.

Consult a Robotic Specialist: +91 8447 666 333

What is Robotic Partial Knee Replacement?

Unlike a Total Knee Replacement (TKR) which replaces the entire joint, Robotic PKR focuses solely on the affected “compartment” (medial, lateral, or patellofemoral). By using a robotic arm as a high-precision guide, our surgeons can resurface the bone with extreme accuracy, ensuring the artificial implant fits seamlessly into your natural anatomy.

Are You a Candidate for Robotic PKR?

This procedure is an ideal “middle ground” for patients who are too active for just medication but don’t yet need a full knee replacement.

• Localized Pain: Pain confined to one specific side of the knee.
• Good Ligament Stability: Your ACL and PCL should be healthy and intact.
• Range of Motion: You still maintain a decent ability to bend and straighten the leg.
• Failed Conservative Care: You’ve tried physical therapy, weight loss, and injections without lasting relief.

Note: Those with widespread inflammatory arthritis (like Rheumatoid Arthritis) or significant deformities may be better suited for a Total Knee Replacement.

The Metro Precision Protocol: How it Works

1. 3D Virtual Mapping: We start with a high-resolution CT scan to create a 3D digital twin of your knee. This allows the surgeon to plan the exact size and orientation of the implant before surgery.
2. Haptic Protection: During the procedure, the robotic arm uses a “virtual boundary.” If the surgeon moves outside the planned area, the robot provides haptic feedback (resistance), ensuring zero damage to surrounding healthy tissue.
3. Real-Time Alignment: The system provides live data during surgery, allowing for perfect ligament balancing so your knee feels “natural” and stable.

Key Benefits: Why Choose Robotic over Manual?

• Natural Joint Feel: Because we preserve your own ligaments and healthy bone, the knee retains its natural “proprioception” (the feeling of where your limb is in space).
• Sub-Millimeter Accuracy: Robotic assistance eliminates human error in bone resurfacing and implant positioning.
• Rapid Recovery: Most patients are mobile within 24 hours and return to daily activities much faster than traditional surgery.
• Increased Longevity: Precise alignment reduces uneven wear and tear, potentially extending the implant’s life to 25+ years.

Recovery & Rehabilitation at Metro Hospitals

At Metro, your surgery is only the first step. Our integrated recovery program includes:

• Early Mobilization: We get you standing and walking on Day 1 to prevent blood clots and promote healing.
• Custom Physiotherapy: A tailored exercise regime to strengthen the quadriceps and restore full range of motion.
• Advanced Pain Management: We use multi-modal analgesia and cryotherapy (cold therapy) to minimize post-op discomfort.

FAQs

1. How long does the surgery take?

A Robotic Partial Knee Replacement typically takes between 2 and 3 hours, depending on the complexity of the joint anatomy.

2. Will I need a total knee replacement later in life?

 While PKR treats only the damaged area, the rest of your knee can still develop arthritis over time. However, for most patients, a well-aligned robotic PKR can last 15 to 20 years or more before any further intervention is considered.

3. Can I have both knees done simultaneously?

In specific cases, “bilateral” PKR is possible. However, our surgeons usually recommend a staggered approach to ensure the safest and most effective rehabilitation.

4. When can I drive after surgery?

Most patients return to driving within 3 to 4 weeks, provided they are no longer taking narcotic pain medication and have regained sufficient muscle control and reaction time.

5. Does robotic surgery leave a large scar?

No. Because this is a minimally invasive approach, the incision is significantly smaller (usually 3–4 inches) compared to the 8–10 inch scar typically seen in traditional total knee replacements.