Skip to content

Partial Knee Replacement

What is a partial knee replacement, and how is it different from a total knee replacement?

A partial knee replacement is a surgical treatment for advanced knee osteoarthritis. A partial knee replacement does not replace the entire knee joint. Instead, a partial knee replacement replaces only the portion of the joint that is affected by arthritis.

In contrast, a total knee replacement removes all of the damaged bone of the joint surfaces and replaces it with metal, plastic, and/or ceramic components.

Learn more about knee anatomy

Why choose a partial knee replacement over a total knee replacement?

Total knee replacements can be an ideal choice for older or less active patients. In younger patients, however, a total knee implant could wear out in as little as 15 years. Performing another total knee replacement is a major surgery, and the outcome is less likely to be as good the second time around.

For these reasons, partial knee replacements can be an excellent option for younger patients with advanced arthritis and patients who have arthritis in a portion of the joint rather than the entire joint.

What are the benefits of partial knee replacement?

Partial knee replacement has several advantages over total knee replacement. They include:

Is partial knee replacement right for me?

You may be a candidate for a partial knee replacement if other treatments for knee osteoarthritis have failed to relieve your symptoms. You may be a candidate if you have tried the following treatments without success:

Your doctor may recommend knee replacement surgery if you have:

The decision to perform partial knee replacement surgery is based on pain and disability as well as your health and associated medical conditions.

About the procedure

The knee is one joint with three different components that rub against each other. During a partial knee replacement, one portion of your joint surface is removed and replaced with metal, plastic, and/or ceramic components. The three compartments of the knee joint are:

What is a minimally invasive partial knee replacement?

Traditionally, knee replacements have been performed through a long incision on the front of the knee. Recently, minimally invasive surgical techniques have become popular among orthopedic specialists. Using these techniques:

In truth, all knee replacement surgeries have become more “minimally invasive.” As medical knowledge in this area improves, the orthopedic specialists at Summit Orthopedics have become more efficient in their techniques, resulting in better outcomes for our patients.

What is a computer-assisted partial knee replacement?

Another new development in the world of joint replacement has been the advancement of computers as a surgical tool. During a computer-assisted partial knee replacement, your specialist utilizes a computer program to map the surfaces of your joint. This ensures a precise fit and alignment of the partial knee replacement components.

Award-winning, advanced surgical facilities at Summit Orthopedics’ Vadnais Heights Surgery Center received The Joint Commission’s Advanced Certification for Total Hip and Total Knee Replacement for innovation and patient safety. The center is one of just two nationwide to receive the prestigious certification. Learn more.

Preparing for partial knee replacement surgery

Several steps need to be completed in the weeks before surgery:

The following will need to be done in the days leading up to your surgery:

The day of your partial knee replacement surgery

Arrive at the hospital or surgery center two hours prior to your surgery. During this time, your nurses may run minor tests, check your blood pressure, and take your pulse. Your anesthesiologist will meet with you to discuss the type of anesthesia you will receive. You will also receive antibiotics before surgery to help protect against any potential infection.

Until you are taken to surgery, your family may stay with you. A member of your specialist’s team will also come in and address any last-minute questions or concerns you might have.

For more information, please refer to the presurgery handout you received.

What can I expect after partial knee replacement surgery?

Partial knee replacement surgeries can be performed either at a hospital or at the Vadnais Heights Surgery Center or Eagan Surgery Center.

Contact your specialist immediately if you develop a fever or chills, pain that is not relieved by medication, excessive drainage that doesn’t stop, calf pain, or if you fall. Call 911 immediately if you experience any shortness of breath or develop chest pain.

Leaving the hospital or Care Suites

Before surgery, you and your physician will establish a plan for where you will be discharged after surgery and who will be caring for you. After you go home, you’ll come to our physical therapy facility twice a week for ongoing rehabilitation.

Your first follow-up visit

After surgery, your treatment team will want to see you in clinic. At this appointment, you can expect to have any remaining staples removed, have X-rays taken, and receive instructions and guidelines for the next four to six weeks. Your specialist will also check on your progress with physical therapy.

How long will it take to recover from partial knee replacement?

The length of your recovery can vary, so talk with your orthopedic surgeon about the recovery plan for your specific situation.

Potential complications during and after partial knee replacement surgery

It is important to have realistic expectations about your partial knee replacement surgery. Although they are rare, there are potential complications with any surgery, and you are expected to have a reasonable understanding of the risks. Please refer to our preoperative informational handout for further information regarding potential complications and risks associated with surgery.

Every surgical procedure carries some risk. Talk with your doctor about potential risks and complications of knee surgery, such as:

All treatment and outcome results are specific to the individual patient. Results may vary.

Our goal at Summit Orthopedics is to help you have the best experience possible as you transition into this new phase of your life. Should you have any questions or concerns, do not hesitate to contact your specialist’s team. They are available to help you and address any questions or concerns that you may have.

When to seek treatment for your arthritis

Arthritis doesn’t have to spell the end of an active life. If you are experiencing worrisome symptoms or persistent pain, the renowned arthritis specialists at Summit Orthopedics can help. We work with you to confirm a diagnosis and develop an appropriate conservative treatment plan. If nonsurgical treatments fail to support your lifestyle goals, fellowship-trained orthopedic surgeons will consult with you and discuss appropriate surgical options.

Summit is home to innovative joint replacement options. Our Vadnais Heights Surgery Center is one of only two surgery centers nationally to receive The Joint Commission’s Advanced Certification for Total Hip and Total Knee Replacement.

Start your journey to healthier joints. Find your arthritis expert, request an appointment online, or call us at (651) 968–5201 to schedule a consultation.

Summit has convenient locations across the Minneapolis-St. Paul metro area, serving Minnesota and western Wisconsin. We have state-of-the-art centers for comprehensive orthopedic care in Eagan, MNPlymouth, MNVadnais Heights, MN, and Woodbury, MN, as well as additional community clinics throughout the metro and southern Minnesota.

More knee replacement resources for you