Patient Guide

OI Total Knee Replacement Systems

Learn about the implant options your surgeon may consider, how they differ, and how each works with the lateral approach.

Our Products

Designed for the Future of Total Knee Replacement

Cementless Total Knee Replacement System

Cementless Total Knee Replacement System

Designed for biological fixation, allowing bone to grow into the porous implant surfaces for long-term stability.

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Cemented Total Knee Replacement System

Cemented Total Knee Replacement System

Uses bone cement to secure the implant components in place during total knee replacement.

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Posterior-Stabilized Knee Replacement System

Posterior-Stabilized Knee Replacement System

Designed with additional implant stability for patients whose knee replacement requires posterior stabilization.

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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.

What Is The Lateral Approach?

A Muscle-Sparing Way to Access the Knee

The lateral approach changes how surgeons access the knee during total knee replacement. Instead of using a traditional midline pathway, the surgeon enters from the outside of the knee. This muscle-sparing technique avoids cutting the quadriceps and helps preserve more surrounding tissue. By reducing disruption to the front of the knee, the technique is designed to support earlier mobility, less pain and numbness, faster recovery, and a more discreet incision location for patients.

Preserves the Quadriceps

Avoids cutting through the quadriceps muscle during the surgical approach.

Lateral Incision Placement

Moves the incision away from the traditional front-of-knee surgical pathway.

Supports Faster Recovery

Muscle-sparing access is designed to support earlier mobility, strength, and recovery.

Lateral-First Engineering

Specialized implants and instrumentation are designed specifically for lateral access.

Frequently Asked Questions

The lateral approach accesses the knee from the side and is intended to preserve the quadriceps and surrounding soft tissue. Optimotion also states that the approach may involve less manipulation of the kneecap than some midline approaches. The current site says this tissue preservation can contribute to quicker recovery and improved early mobility, although recovery varies by patient.

Surgery time varies depending on the complexity of the procedure, the surgeon’s experience, and other individual factors. According to Optimotion’s current patient guidance, lateral approach knee replacement typically takes approximately one to two hours.

Like any knee replacement procedure, the lateral approach carries potential risks and complications. These may include infection, blood clots, implant-related problems, nerve or blood vessel damage, stiffness or reduced range of motion, pain, and allergic reactions. Your surgeon can discuss risks specific to your health and procedure.

Recovery varies based on the patient, procedure, and type of work performed. Optimotion’s current guidance says patients with sedentary jobs may return within approximately 2 to 6 weeks, while light physical work may require 6 to 12 weeks. Physically demanding work may require 3 to 6 months or longer.

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.

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.