Is a Partial Knee Replacement Right for You? What You Kneed to Know.

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Knee arthritis is a leading cause of pain, stiffness, and loss of mobility, affecting millions of adults each year. While many people believe knee replacement always means a major operation and a prolonged recovery, advances in orthopedic technology have created more targeted solutions for the right patients. One of the most advanced options available today is Mako robotic-assisted partial knee replacement, a procedure designed to treat arthritis while preserving as much of the natural knee as possible.

Understanding Partial Knee Arthritis
Arthritis does not always affect the entire knee. In many patients, damage is limited to a single compartment - most commonly the inner (medial) side of the knee. When the remaining cartilage and ligaments are healthy, a partial knee replacement may be an excellent alternative to total knee replacement. By treating only the damaged portion of the joint, patients can often maintain more normal knee mechanics and function.

A comprehensive evaluation - including X-rays, a CT scan, and a detailed physical examination - is essential to determine whether partial knee replacement is appropriate.

Non-Surgical Treatments Are Always the First Step
Surgery is never the first step in treating knee arthritis. Most patients initially benefit from nonoperative treatments such as physical therapy, activity modification, anti-inflammatory medications, weight management, knee bracing, and injections designed to reduce inflammation or improve joint lubrication. These approaches can help decrease pain, improve stability, and maintain function, particularly in the early or moderate stages of arthritis. When symptoms persist despite appropriate conservative care and begin to interfere with daily activities and quality of life, surgical options may be discussed.

How Mako® Robotic Partial Knee Replacement Works
Robotic-assisted surgery does not replace the surgeon; it enhances precision. Prior to surgery, a CT scan is used to create a detailed 3-D model of the patient’s knee. This allows the procedure to be carefully planned based on the individual’s anatomy before entering the operating room.

During surgery, the robotic system provides real-time feedback, guiding the surgeon to remove only the damaged bone and cartilage while protecting healthy tissue.

According to Dr. David A. Abrutyn, Chair of Orthopedics at Summit Health, “Robotic technology allows us to tailor the operation to each patient’s knee with a level of precision that is difficult to achieve otherwise. For the right patient, that accuracy can result in a smoother recovery, less pain, and better range of motion after surgery.”

Expected Results and Recover
For properly selected patients, robotic partial knee replacement can lead to significant pain relief, improved mobility, and a faster return to normal activities compared with traditional knee replacement. Because healthy bone, cartilage, and ligaments are preserved, many patients report that the knee feels more natural during everyday movements. Reduced postoperative pain and improved range of motion often allow patients to begin walking and rehabilitation soon after surgery.

One patient shared their experience: “I was nervous going into surgery, but I was walking the same day and home that afternoon. Within a few weeks, I was moving comfortably and doing things I had avoided for years. The recovery was far easier than I expected.”

Same-Day Surgery Is Often Possible
Thanks to minimally invasive techniques, modern anesthesia, and enhanced recovery protocols, many patients undergoing robotic partial knee replacement are able to return home the same day.

A Personalized Approach to Knee Care
Robotic-assisted partial knee replacement is not the right solution for every patient, but for those with arthritis limited to one compartment of the knee, it can be a highly effective option. Careful patient selection, thoughtful surgical planning, and advanced technology all play a role in achieving excellent outcomes.

Frequently Asked Questions About Mako® Robotic Partial Knee Replacement

What is a robotic partial knee replacement?
A robotic partial knee replacement is a procedure that treats arthritis affecting only one part of the knee. Using Mako robotic technology, the surgeon replaces only the damaged compartment while preserving healthy bone, cartilage, and ligaments. This targeted approach can help maintain more natural knee motion.

How is a partial knee replacement different from a total knee replacement?
In a total knee replacement, all surfaces of the knee joint are replaced. A partial knee replacement addresses only the area affected by arthritis. For properly selected patients, this often results in less pain after surgery, better range of motion, and a faster recovery compared with total knee replacement.

Who is a good candidate for partial knee replacement?
Patients whose arthritis is limited to one compartment of the knee and who have good range of motion and stable ligaments may be good candidates. A thorough evaluation - including X-rays, a CT scan, and a physical exam - is required to determine whether partial knee replacement is appropriate.

Is robotic knee replacement safe?
Yes. Robotic-assisted knee replacement has been used safely for many years. The robot does not operate independently; it provides real-time guidance to help the surgeon perform the procedure with greater precision and consistency.

What role does the CT scan play?
The CT scan creates a detailed 3-D model of your knee anatomy before surgery. This allows the procedure to be planned specifically for your knee and helps guide accurate implant placement during surgery.

How long does recovery take?
Recovery varies by patient, but many people begin walking the same day as surgery and resume normal daily activities within weeks. Because less bone and tissue are disrupted, recovery is often faster than with traditional knee replacement.

Will I go home the same day?
Many patients undergoing robotic partial knee replacement are able to return home the same day, depending on their overall health and comfort level after surgery.

How long does a partial knee replacement last?
Modern partial knee implants are designed to be durable and long-lasting. When placed accurately and in the right patient, outcomes are excellent, with many implants lasting well over a decade.

What if my arthritis worsens later?
If arthritis develops in other parts of the knee in the future, a partial knee replacement can usually be converted to a total knee replacement if needed.

What should I try before considering surgery?
Non-surgical treatments such as physical therapy, activity modification, anti-inflammatory medications, weight management, knee bracing, and injections are often effective and are typically tried before surgery is considered.

Ready to Learn More?
For more information or to schedule a consultation, visit www.summithealth.com/totaljointnj or call 908-685-8500.

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