The original medial-pivot knee design

The unique design and successful clinical heritage of MicroPort® Orthopedics’ medial-pivot knees sets the EvolutionTM Knee System apart from the competition. A legacy of 98.8% survivorship and 17 years and 95% patient satisfaction supports the ability of MicroPort® Orthopedics’ medial-pivot designs to restore stability and normal kinematics. This helps surgeons to achieve favorable, reproducible, and long-lasting outcomes for their patients.1-4

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Primary medial-pivot knee systems

Product Overview

The MicroPort® medial-pivot knee system now stands on over 20 years of clinically demonstrated history with its first to market medial-pivot design that was built on the latest kinematic evidence of the natural stability and motion of the knee.1 Its innovative design aims to restore function by replicating natural motion and AP stability and to address some of the common problems seen with traditional designs, such as anterior knee pain and quadriceps avoidance.

Innovative Products

Primary medial-pivot knee systems PRIMARY MEDIAL PIVOT KNEE SYSTEMS 1

Revision medial-pivot knee systems

Product Overview

MicroPort® Orthopedics revision knee systems are built on a 20-year clinical heritage of patient satisfaction and survivorship. The Evolution® revision system is the first revision knee system that maintains the proven kinematic benefits of a medial-pivot design, while also offering surgeons intra-operative flexibility to meet all patient needs.

Innovative Products

Primary medial-pivot knee systems REVISION MEDIAL PIVOT KNEE SYSTEMS 1

Prophecy® personalized knee solutions

Product Overview

Prophecy® guides are specifically designed to provide for accurate alignment, sizing, and implant placement for MicroPort® Orthopedics knee implants.

Innovative Products

Primary medial-pivot knee systems PROPHECY PERSONALIZED KNEE SOLUTIONS 1
Picto Birthday

20 years of stability

Celebrating 20 years of innovation, MicroPort® Orthopedics employees as well as surgeons who utilize the medial-pivot knee system share their experience with the innovative knee replacement design over the last 20 years

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Picto Knee

Evolution® vs. traditional knee designs

Surgeons utilizing the Evolution Medial-Pivot Knee give their insight on the difference between traditional total knee arthroplasty systems and the Evolution Medial-Pivot Knee System.

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Every patient is different, and individual results will vary. There are risks and recovery times associated with surgery.

Not all products and options are available in all countries.

These surgeons are paid consultants for MicroPort® Orthopedics. The opinions expressed are theirs alone and do not necessarily reflect the opinions of MicroPort® Orthopedics Inc.


1. George A. Macheras et al. “A long term clinical outcome of the Medial Pivot Knee Arthroplasty System.” The Knee Journal, January 29, 2017.

2. Patient satisfaction at 2 months following total knee replacement using a second generation medial-pivot system: follow-up of 250 consecutive cases. Van Overschelde P et al. Ann Transl Med 2016

3. Pritchett JW. Patients prefer a bicruciate-retaining or the medial pivot total knee prosthesis. J Arthroplasty. 2011;26:224–228.

4. Miyazaki Y et al. Analysis of the Kinematics of Total Knee Prostheses With a Medial Pivot Design. J Arthroplasty. 2011; 26(7):1038-1044.

5. Lamontagne, M.; Czyrnyj, C; Dervin, G. Functional performance and muscle activation with an ACL-PCL substituting knee. Podium Presentation, ACBS 2012.