Partial Knee Replacement in Los Angeles

Knee replacement surgery has evolved dramatically in recent years. Advances in robotic technology, surgical planning, and implant design now allow orthopedic surgeons to treat knee arthritis with far greater precision while preserving as much of the natural joint as possible.

In Los Angeles, partial knee replacement is performed by Dr. Farzin Kabaei, a board-certified orthopedic surgeon who specializes in modern joint reconstruction. Dr. Kabaei completed orthopedic surgery training at Montefiore / Albert Einstein Medical Center and advanced fellowship training in complex joint reconstruction at Cedars-Sinai Medical Center. His practice focuses on robotic-assisted hip and knee replacement, and he regularly teaches medical students and orthopedic residents modern techniques in precision joint replacement.

Dr. Kabaei has extensive experience treating complex joint conditions, including advanced arthritis, traumatic injuries, and failed prior joint replacements. His surgical philosophy focuses on preserving healthy anatomy whenever possible. For carefully selected patients with arthritis affecting only part of the knee joint, partial knee replacement can provide excellent pain relief while maintaining the natural mechanics of the knee.

What Is Partial Knee Replacement?

Partial knee replacement, also called unicompartmental knee replacement, replaces only the damaged portion of the knee rather than resurfacing the entire joint.

The knee joint has three main compartments:

• Medial compartment (inner knee)

• Lateral compartment (outer knee)

• Patellofemoral compartment (front of the knee)

When arthritis affects only one of these compartments, it may be possible to replace just that section of the knee while preserving the rest of the joint.

During partial knee replacement surgery:

• Damaged cartilage and bone are removed from the affected compartment

• Healthy cartilage and ligaments are preserved

• A small prosthetic implant replaces the diseased portion of the joint

Because the majority of the knee remains intact, many patients experience more natural knee movement compared with total knee replacement.

The Importance of Precision in Partial Knee Replacement

Partial knee replacement is a highly precise procedure. Because only a small portion of the joint is replaced, accurate implant positioning and proper patient selection are critical for long-term success.

Dr. Kabaei uses advanced robotic-assisted surgical planning to improve accuracy and consistency. Robotic planning begins with a detailed 3D CT scan that maps the patient’s knee anatomy before surgery. This allows the procedure to be carefully planned in advance.

Robotic guidance helps surgeons:

• Precisely align implants

• Preserve healthy bone and cartilage

• Balance the surrounding ligaments

• Recreate natural joint mechanics

By combining robotic planning with meticulous surgical technique, Dr. Kabaei aims to restore smooth, natural knee movement while minimizing unnecessary tissue disruption.

Benefits of Partial Knee Replacement

For properly selected patients, partial knee replacement offers several advantages compared with total knee replacement.

Potential benefits include:

• Preservation of healthy bone and cartilage

• Retention of the knee’s natural ligaments

• Smaller surgical exposure

• Less disruption to surrounding tissue

• Faster recovery compared with total knee replacement

• More natural knee motion

Because the normal structure of the knee is largely preserved, many patients report that the joint feels more natural during everyday movement.

Who Is a Candidate for Partial Knee Replacement?

Partial knee replacement is appropriate only when arthritis is limited to one compartment of the knee.

Good candidates often include patients who:

• Have arthritis affecting only one area of the knee

• Experience localized knee pain rather than diffuse joint pain

• Maintain good ligament stability

• Have reasonable range of motion

• Have not responded to conservative treatments

Dr. Kabaei performs a thorough evaluation that includes physical examination, imaging studies, and discussion of lifestyle goals before recommending surgery. In some cases, total knee replacement may still provide the most durable long-term outcome.

Recovery After Partial Knee Replacement

Recovery after partial knee replacement is often quicker than recovery following total knee replacement because less of the joint is disturbed during surgery.

Many patients:

• Begin walking shortly after surgery

• Start physical therapy within days

• Experience steady improvement in mobility over several weeks

Rehabilitation focuses on restoring strength, flexibility, and balance so patients can safely return to daily activities and exercise.

Why Surgeon Experience Matters

Partial knee replacement requires careful surgical judgment and precise technique. Determining whether a patient is an appropriate candidate is just as important as performing the surgery itself.

Dr. Kabaei’s background in complex joint reconstruction allows him to evaluate knee arthritis thoroughly and determine when partial knee replacement is appropriate. His experience treating both primary and revision joint cases provides valuable insight into the long-term durability of different surgical approaches.

This expertise allows him to tailor treatment plans to each patient rather than relying on a one-size-fits-all surgical solution.

Partial Knee Replacement in Los Angeles

Arthritis of the knee can make even simple activities difficult. When non-surgical treatments no longer provide relief, partial knee replacement may offer a way to restore mobility while preserving much of the natural joint.

With advanced robotic planning and specialized surgical expertise, partial knee replacement can provide durable pain relief and help patients return to an active lifestyle.

Patients considering partial knee replacement in Los Angeles can consult with Dr. Farzin Kabaei to determine whether this minimally invasive option is appropriate for their condition.

Frequently Asked Questions About Partial Knee Replacement

What is the difference between partial knee replacement and total knee replacement?

Partial knee replacement replaces only the damaged portion of the knee joint, while total knee replacement resurfaces the entire joint. Partial knee replacement preserves more of the natural knee structures and may allow for more natural movement.

How do I know if I qualify for partial knee replacement?

Patients typically qualify if arthritis affects only one compartment of the knee and the ligaments are still functioning properly. Imaging studies and physical examination help determine whether partial knee replacement is appropriate.

Is partial knee replacement less invasive than total knee replacement?

Yes. Because the procedure replaces only a small portion of the joint and preserves surrounding structures, partial knee replacement generally involves less disruption to tissue than total knee replacement.

How long does a partial knee replacement last?

Modern partial knee implants are designed for long-term durability. Many implants last well over a decade, and outcomes depend on implant alignment, activity level, and overall joint health.

Can a partial knee replacement be converted to a total knee replacement later?

Yes. If arthritis progresses to other areas of the knee in the future, a partial knee replacement can often be converted to a total knee replacement.

Is recovery faster than with total knee replacement?

Many patients experience a faster recovery compared with total knee replacement because less bone and tissue are affected during surgery.

Will the knee feel natural after partial knee replacement?

Because most of the natural joint structures remain intact, many patients report that the knee feels more natural compared with total knee replacement.

When can I return to normal activities?

Return to activity depends on overall health and rehabilitation progress. Many patients resume daily activities within several weeks, though full recovery may take longer.