The Ossur Unloader One X knee brace is a medical device with biomechanical properties that is clinically proven to provide pain relief and functional improvements to people suffering from medial or lateral compartment osteoarthritis (OA) of the knee and degenerative meniscal tears.
The Unloader One X builds on decades of patient and practitioner experience and is designed with ease of use and effortless wear in mind.
Take Control of Osteoarthritis Knee Pain
Clinically proven to improve mobility by providing relief from knee osteoarthritis pain, the Unloader One X knee brace for osteoarthritis is your companion for everyday activities and adventures. From gardening to playing with grandchildren and pickleball to evening strolls, Unloader One X provides reliable relief and support for the things you love – because living with knee pain shouldn’t be the new normal.
The Unloader One X offloading knee brace’s patented 3-Point Leverage System “unloads” the pressure from your affected knee compartment, resulting in a reduction of knee osteoarthritis pain.
A Little about Osteoarthritis
The knee has 2 compartments, the inside (medial) compartment and the outside (lateral) compartment. Most of the time, when you get osteoarthritis of the knee, you wear down one compartment more than the other. In a majority of the cases, the inside of the knee wears down more, leading to a bowlegged appearance of the knee in extreme cases (medial compartment OA). Other times, the outside (lateral) compartment of the knee wears down leading to a knocked knee appearance of the knee (lateral compartment OA).
The Ossur Unloader One X Knee brace is designed to take the pressure off the compartment that is more severely worn down. For this knee brace to be fully effective, It is important to figure out which knee compartment (medial or lateral) is worn down more before deciding which OA Knee brace is right for you. One of our physiotherapists can help you make this decision. Feel free to contact us for help.
How Does The Ossur Unloader One X Knee Brace Work?
Unloader knee braces for osteoarthritis unload the affected, painful side of the knee using a 3-Point Leverage System. The thigh and calf shells account for two points of leverage, while the Dynamic Force System™ (DFS) straps provide the third. This system “unloads” the pressure from the affected area, providing a clinically proven reduction in OA knee pain.
Unloader One X knee brace for osteoarthritis features a lightweight, low-profile design, which is barely noticeable and fits discreetly under clothing. SmartDosing® dials provide you with simple, single-hand control for on-the-fly adjustability, helping you better manage knee osteoarthritis pain.
Features and Benefits
- 3-Point Leverage System consisting of two Dynamic Force System (DFS) Straps, rigid shells and a single upright hinge contribute to a unicompartmental unloading of the knee joint.
- The unloading is effective only when needed, no condyle pressure during sitting or swing phase.
- A slender perforated frame with soft edges, contours easily to individual anatomies and remains discreet whether worn over or under clothing.
- Skin friendly liners and pads as well as a smooth inner surface of shells reduce probability of pressure points.
- The gastroc strap is positioned over thickest part of calf to help prevent migration.
- Tool-free SmartDosing® dials enable the patient to be in control of their pain level by fine-tuning the strap tension.
- Color coded touchpoints and Quick-Fit buckles increase user-friendliness.
- Alignment guide on hinge facilitates correct positioning on the leg.
- Entire brace is machine washable (washbag included with product).
- Easily adaptable to individual needs and anatomical shapes.
- Field serviceable.
- BOA® Fit System: Dial in to fast, effortless, precision fit.
- Available sizes: Comes in 2 sizes: XS-M, and L-XL
- Available Lengths: Standard (leg length > 85 cm) or Short (leg length < 85 cm)
Indications for the Ossur Unloader One X Knee Brace
- Moderate to severe unicompartmental (lateral or medial compartment) knee osteoarthritis.
- Degenerative meniscal tears.
- Other unicompartmental knee conditions that may benefit from unloading, such as: Articular cartilage defect repair Meniscal repair Avascular necrosis Condylar bone marrow lesions Tibial plateau fractures.
Ossur Unloader One OTS Knee Brace vs. Ossur Unloader One X OTS Knee Brace: Key Differences
At The Physio Store, we carry both the Ossur Unloader One OTS and the Ossur Unloader One X OTS knee braces, designed to provide relief for knee osteoarthritis and other conditions requiring unloading support. Here’s a comparison to help you choose the right brace for your needs:
Ossur Unloader One OTS
- Versatile Fit: The Unloader One OTS is designed to fit a wider range of body types, including those with larger or softer thighs and calves.
- Secure and Durable: With robust thigh and calf cuffs and a rigid frame on both sides of the knee, this brace stays in place better, making it suitable for active users or those needing more significant support.
- Effective Offloading: Known as the best lateral unloader on the market, it provides superior unloading force for knee pain relief and enhanced mobility.
- Weight Capacity: The Unloader One OTS is designed to accommodate a broader range of body weights.
Ossur Unloader One X OTS
- Lightweight Design: The Unloader One X OTS features a slimmer, more lightweight build, making it ideal for smaller individuals or those prioritizing a minimalist brace.
- Targeted Support: The rigid portion of the brace is limited to one side of the knee, resulting in a less bulky fit but reduced suitability for users with larger thighs and calves.
- Body Type Considerations: Best suited for individuals with good muscle tone and a body weight under 150 lbs.
- Comfort and Discretion: Its smaller thigh and calf cuffs make it a discreet option for those with slender legs.
Which Should You Choose?
- If you need a durable, highly effective brace that stays in place and offers maximum unloading force, the Unloader One OTS is the preferred choice for most users.
- If you’re a smaller individual with good muscle tone, looking for a lightweight and less bulky option, the Unloader One X OTS may be a better fit.
Still not sure? Contact our experts to see which would be best for your needs.
Sizing Chart
Size | Calf Circumference (15 cm / 6″) below Mid-Patella |
XS-M | 9¾” – 16¾” (25 – 43 cm) |
L – XL | 16¾” – 24¼” (43 – 62 cm) |
Measurement: Measure your calf circumference 15 cm (6″) below the middle of your knee (mid-patella) with your leg fully straight and relaxed. If you are at the top of one sizing category, we recommend you select the next sizing up. |
Standard or Short Version
Unload the Medial or Lateral Compartment
If you have medial compartment osteoarthritis as diagnosed by your healthcare professional, you would select Unload the Medial Compartment. Usually your would have pain on the inside of your knee and would be considered bowlegged. If you are not sure, ask your healthcare professional.
If you have latera compartment osteoarthritis as diagnosed by your healthcare professional, you would select Unload the Lateral Compartment. Usually your would have pain on the outside of your knee and your legs would be considered knock kneed. If you are not sure, ask your healthcare professional.
This brace only works if you have only one knee compartment with arthritis either the medial or lateral compartment. This brace is not designed to work if both compartments have an equal amount of arthritis. Ask your healthcare practitioner if this brace is right for your condition.
Ossur Unloader One X Knee Brace Documents
Ossur Unloader One X Knee Brace Information Sheet
Ossur Unloader One X Knee Brace Instruction for Use Document
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