Orthopedics — Total Knee Replacement

Freedom®

The one and only 7 tangential radii knee implant in the world.

An advanced knee replacement system designed to address the anatomical, physiological and lifestyle needs of patients providing high flexion and ensuring patient satisfaction.

The system

A unique component option that delivers successful, predictable and reproducible results

The Freedom Total Knee® System is the first USFDA-approved knee system with 7 tangential radii, resulting in excellent implant-to-bone fit. Developed using advanced design engineering technologies, it addresses the anatomical, physiological and lifestyle needs of today’s patients. The system’s unique design allows patients to achieve optimal high-flexion motion.

Compared to general knee replacement procedures, the Freedom Total Knee® System requires minimal bone cutting and enables a more conservative bone resection. Its intuitive design offers surgeons the freedom to customise size options to better fit the implants to the patient’s knee.

Design rationale

Coordinate articular geometry of the natural femur

The Freedom femoral design is based on functional principles of progressive multi-radii patello-femoral and tibio-femoral contact areas.

01

7 tangent radii

Radii 1, 2 and 3 ensure optimized patella-femoral contact. Radii 4, 5, 6 and 7 control femoral rollback and flexion over a wide array of biomechanical requirements, from walking to climbing stairs.

02

Smooth extensor mechanism

7 radii along with a thin anterior flange and a 6-degree deep trochlear groove facilitate predictable patello-femoral tracking — helping to reduce anterior knee pain.

03

Increased femoral rollback

A multi-radii design gives predictable femoral rollback, allowing high flexion up to 155 degrees for various daily and social activities.

04

Asymmetrical post-cam mechanism

A modified post-cam mechanism allows rotation up to 15 degrees at deep flexion, preventing post-cam impingement and reducing wear and tear of the poly.

05

Prevention of edge loading

Freedom Knee concentrates load towards the centre of the poly at deep flexion, rather than at the condylar edges.

05

Prevention of edge loading

Freedom Knee concentrates load towards the centre of the poly at deep flexion, rather than at the condylar edges.

Indication

Arthritis of the knee

Arthritis is an inflammation of one or more of your joints. Pain, swelling and stiffness are the primary symptoms of arthritis. Any joint in the body may be affected by the disease, but it is particularly common in the knee.

Knee replacement surgery is considered after all other conservative options have failed to provide any relief. The procedure involves removing the damaged knee and replacing it with an artificial one.

Product details

Specification ledger

PRODUCT : Freedom Total Knee® System

CATEGORY : Orthopedics · total knee replacement

FEMORAL GEOMETRY : 7 tangential radii · 6° deep trochlear groove

FLEXION : High flexion up to 155°

COMPONENTS : CR and PS femurs (L & R) · metal-backed tibial trays and inserts · all-poly tibia

MATERIALS : Cobalt chrome · ram-extruded UHMWPE, GUR 1020

FIXATION : Cemented use only

REGULATORY : USFDA-approved