The Lateral Approach

Minimally Invasive Muscle-Sparing Knee Surgery

By preserving the quadriceps and surrounding tissue, the lateral approach is designed to support mobility, comfort, and recovery quicker than traditional knee surgery.

How It Works

Knee Replacement Without Cutting the Quadriceps

The lateral approach provides surgeons with an alternative route into the knee, working around the quadriceps rather than cutting through it. This muscle-sparing access is designed to preserve more of the surrounding anatomy while still providing the exposure needed to perform total knee replacement.

The Difference

Lateral vs. Traditional Approach

Traditional total knee replacement typically uses a front-of-knee pathway that disrupts more of the extensor mechanism. By approaching from the lateral side, surgeons can preserve the quadriceps and surrounding soft tissue while potentially reducing manipulation of the patella. This muscle-sparing access may support earlier mobility and a different recovery experience for patients.

Patient Benefits

What a Muscle-Sparing Approach Could Mean for Recovery

Get Moving Sooner

Preserving the quadriceps may help you get back on your feet sooner after surgery.

Less Postoperative Pain

Reduced tissue disruption may help lessen pain during the early recovery period.

Less Numbness & Irritation

Lateral incision placement may reduce disruption to nerves along the front of the knee.

Discreet Incision Placement

Positions the incision along the outside of the knee for a more discreet cosmetic appearance.

The OI System

Technology Supporting the Lateral Approach

The lateral approach requires more than changing where the surgeon makes an incision. The instruments and implant system also need to support the way the surgeon accesses, prepares, balances, and replaces the knee through that different surgical pathway.

That’s why we developed the OI platform around the lateral approach itself. From specialized instruments used during surgery to implant options that give surgeons flexibility for different patient needs, the system is designed to work together throughout the procedure.

Purpose-Built Instruments

Specialized surgical tools help surgeons work through the unique access provided by the lateral approach.

Precise Bone Preparation

Dedicated guides support the preparation and positioning required before the knee implant is placed.

Knee Balance & Stability

Trialing and balancing tools help surgeons evaluate fit, spacing, and stability during the procedure.

Implant Flexibility

Different implant and fixation options allow surgeons to select a configuration based on individual surgical needs.

Understanding Your Options

Is the Lateral Approach Right for You?

Ask About the Lateral Approach If

  • Total knee replacement has been recommended
  • Preserving the quadriceps is important to your recovery goals
  • You’re interested in a muscle-sparing surgical approach
  • You want to understand alternatives to traditional surgical access

Questions to Discuss With Your Surgeon

  • How the lateral approach compares with other surgical options
  • Whether the technique is appropriate for your knee
  • What recovery may look like based on your needs
  • Which implant and fixation options may be considered

What to Expect

Recovery is different for every patient, but understanding the general stages can help you feel more prepared. Here’s what may happen before surgery and as you begin to move, heal, and return to daily life.

  1. Before Surgery

    Meet with your surgeon, complete any recommended testing, review medications, and prepare your home for recovery.

  2. Day of Surgery

    Your procedure is performed, and many patients begin walking within hours under the guidance of their care team.

  3. Early Recovery: Days 1-7

    Begin physical therapy, manage discomfort, and gradually increase your range of motion as your recovery progresses.

  4. Rebuilding Strength: Weeks 2-6

    Continue therapy and everyday movement as strength and confidence improve. Some patients with sedentary jobs may return to work during this stage.

  5. Returning to Daily Life: Months 3+

    Keep progressing toward everyday activities and higher-demand tasks. More physical work and activity may require additional recovery time.

OI Blue

Total Knee System

We developed the OI Blue Total Knee System to support the unique requirements of the lateral approach while giving surgeons flexibility for different patient needs. The platform combines specialized instrumentation with cemented, cementless, cruciate-retaining, and posterior-stabilized implant options for a comprehensive approach to total knee replacement.

Patient holding a painful knee beside the OI total knee implant

See The Difference For Patients

For many patients, recovery is about getting back to the life they want to live. These stories share the progress, milestones, and everyday wins that made the biggest difference along the way.

Sharon

At six days, my knee bent to 120. I used a walker for possibly a day, and by the end of the first week, I was walking a mile.

Debra

It’s opened up my life again to do the things that I love to do.

Marta

If you’re miserable with your knees and walking, and it changes your life so you can’t do the things you want to do, I say go get it done.

Frequently Asked Questions

The lateral approach accesses the knee from the outside rather than through the traditional front-of-knee pathway. This allows the surgeon to work around the quadriceps instead of cutting through it during total knee replacement.

By preserving the quadriceps and reducing disruption to surrounding tissue, the lateral approach may support earlier mobility, less postoperative discomfort, and a smoother return to everyday activity. Recovery varies for every patient.

The incision is positioned along the outside of the knee rather than directly along the front, creating a more discreet placement for the surgical scar.

A surgeon trained in the lateral approach can evaluate the patient’s knee, medical history, and treatment needs to determine whether the technique may be appropriate.

The primary difference is the pathway used to access the joint. The lateral approach enters from the outside of the knee, allowing the surgeon to preserve the quadriceps while gaining the exposure needed for total knee replacement.

Yes. Optimotion has developed specialized instrumentation around the requirements of lateral access, with tools designed to support the technique and its surgical workflow.

Optimotion offers surgical observation, hands-on cadaveric training, peer education, and continued support to help surgeons learn and implement the technique.

Surgeons can apply through the Become an OI Surgeon pathway to learn more about the lateral approach, OI technology, training opportunities, and next steps for implementation.

Surgeons

Bring the lateral approach into your practice with hands-on training, peer support, and access to Optimotion technology.

Patients

Take the next step toward understanding your knee replacement options with a surgeon trained in the lateral approach.

Distributors

Partner with Optimotion to bring differentiated implant technology and lateral approach solutions to more surgical teams.

Upcoming Technology

See the new technologies and surgical solutions Optimotion is actively developing for the future of knee replacement.