Ossur
CTi®
CTi braces provide the ultimate combination of stabilization and protection of the knee joint. CTi uses Accutrac® hinges with extension stops to glide with the knee. In addition, breathable liners coated with Sensil® silicone ensure the CTi remains properly positioned on the leg for optimal functional benefit. Outfitted with flexible cuffs and D-rings, the carbon frame provides a rigid exoskeleton that stabilizes the knee joint.

Specifications | OSS9600116 | OSS238540116 | OSS9640116 | OSS9500116 | OSS9540116 | OSS238600116 | OSS238500116 | OSS8640116 | OSS238540114 | OSS239540112 | OSS239600115 | OSS239600113 | OSS239600114 | OSS239640112 | OSS9500112 | OSS9600112 | OSS9640113 | OSS9640114 | OSS9640115 | OSS9540114 | OSS9500113 | OSS9500114 | OSS9500115 | OSS9540113 | OSS9540115 | OSS238600112 | OSS238600113 | OSS238600114 | OSS238600115 | OSS238500112 | OSS238500113 | OSS238500114 | OSS238500115 | OSSB238540112 | OSSB238540113 | OSSB238540115 | OSS8640115 | OSS8640112 | OSS8640113 | OSS8640114 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Size | 2X-Large | 2X-Large | 2X-Large | 2X-Large | 2X-Large | 2X-Large | 2X-Large | Large | Small | X-Large | Medium | Large | Small | Small | Small | Medium | Large | X-Large | Large | Medium | Large | X-Large | Medium | X-Large | Small | Medium | Large | X-Large | Small | Medium | Large | X-Large | Small | Medium | X-Large | X-Large | Small | Medium | Large | |
Option | PCL | Pro-Sport | Pro-Sport | Pro-Sport | Standard | Standard | Standard With PCL Part | PCL | PCL | Pro | Pro | Pro | Pro PCL | Pro Sport | Pro-Sport | Pro-Sport | Pro-Sport | Pro-Sport | Pro-Sport | Pro-Sport | Pro-Sport | Pro-Sport | Pro-Sport | Pro-Sport | Standard | Standard | Standard | Standard | Standard | Standard | Standard | Standard | Standard | Standard | Standard | Standard With PCL Part | Standard With PCL Part | Standard With PCL Part | Standard With PCL Part | |
Side | Right | Left | Right | Right | Left | Right | Left | Right | Right | LEft | Left | Left | Left | Right | Left | Left | Left | Left | Medium | Right | Right | Right | Right | Right | Left | Left | Left | Left | Right | Right | Right | Right | Right | Right | Right | Left | Left | Left | Left |
CTi®
CTi's rigid carbon-fiber frame provides optimal protection and stabilization of the knee joint. With its flexible subshells, CTi comes with off-the-shelf convenience.

What are CTi braces?
CTi braces provide the ultimate combination of stabilization and protection of the knee joint. CTi uses Accutrac® hinges with extension stops to glide with the knee. In addition, breathable liners coated with Sensil® silicone ensure the CTi remains properly positioned on the leg for optimal functional benefit. Outfitted with flexible cuffs and D-rings, the carbon frame provides a rigid exoskeleton that stabilizes the knee joint.
Key features
Unloader knee braces can help reduce the load on the affected side of the joint, help reduce discomfort, and improve function.
- Flexible subshell and adjustable tibial strap capture the tibia and allow adjustment in hinge depth for a more customized fit.
- Reversible field-serviceable D-rings and trimmable straps facilitate fast adjustment and customized fit.
- Non-corrosive materials, ideal for water sports.
- Anatomically-correct Accutrac® hinges with extension stops.
- Proprietary Sensil® silicone liners designed to reduce migration.
Indications
For knee conditions that may benefit from increased AP and ML stability around the knee, such as: ACL, MCL, LCL, PCL, rotary, and combined instabilities.

Trusted by elite athletes
Since 1983, CTi knee braces have been tested and trusted by professional action sports athletes around the world. With a product that is "Truly Custom" and our commitment to understanding and designing products to meet the unique demands of athletes, Össur has established a loyalty and awareness to the brand that is unmatched.
The ultimate knee brace for post-operative preventative care
- For athletes who participate in sports and activities with a high instance of knee injuries that want added protection and confidence.
- Who need high performance, low-profile, rigid support for their knee(s).
- That beats the competition because it's truly custom design enables it to be optimized for the athlete's anatomy and activity requirements.
- The reason why is the CTi brace frame locks onto the tibia, helping to reduce migration and provide the brace-to-bone contact needed for maximum stabilization of the knee joint.
Injury prevention or post-injury use
The CTi knee brace is designed to offer maximum protection against injury and re-injury. Damage to the ligaments in the knee is by far the most common sporting injury, of which 40% of all ACL injuries occur as a result of extreme sports. The ligaments in the knee help to stabilize the joint.
CTi braces provide the ultimate combination of stabilization and protection of the knee joint. CTi uses Accutrac® hinges with extension stops to glide with the knee. In addition, breathable liners coated with Sensil® silicone ensure the CTi remains properly positioned on the leg for optimal functional benefit. Outfitted with flexible cuffs and D-rings, the carbon frame provides a rigid exoskeleton that stabilizes the knee joint.
- Flexible subshell and adjustable tibial strap capture the tibia and allow adjustment in hinge depth for a more customized fit.
- Reversible field-serviceable D-rings and trimmable straps facilitate fast adjustment and customized fit.
- Non-corrosive materials, ideal for water sports.
- Anatomically-correct Accutrac® hinges with extension stops.
- Proprietary Sensil® silicone liners designed to reduce migration.
- Available in 2 models: Standard model for moderate to high impact levels and Pro Sport model for the highest impact levels.