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OSSUR Unloader One OTS Knee Brace

Unloader One® is designed to relieve osteoarthritis knee pain and wearing it may help improve mobility. It features Össur's patented 3-point Leverage System, which combines a single hinge with dual Dynamic Force System™ straps to generate unloading of the affected knee joint.

Clinical studies demonstrate that this system may relieve osteoarthritis knee pain and improve function and quality of life while being worn

Color-coded Quick Fit buckles make donning and doffing simple, while flexible shells and breathable liners are designed to improve comfort and reduce migration, thus helping to ensure compliance

Key features

  • Dual Dynamic Force System™ (DFS) straps provide unloading of the knee joint, which may result in pain reduction while being worn.
  • Lightweight frame, perforated for flexibility and ventilation, with flexible, low profile upright hinge that contours to patient anatomy and allows use underneath clothing.
  • Tool-free SmartDosing® dials enable fine-tuned management of the unloading force and can be adjusted even when wearing the brace under clothing.
  • Color-coded Quick Fit buckles enable easy application and removal.
  • Proprietary Sensil® silicone liners are designed to reduce migration.
  • Unloader One® is easy to adjust in the field, to fit an individual‘s contour.


Moderate to severe unicompartmental knee osteoarthritis - Degenerative meniscal tears - Other knee conditions that may benefit from unicompartmental unloading

Unloader One can be worn for your daily activities. Clinically proven to reduce the pain associated with unicompartmental osteoarthritis of the knee, this brace is designed for average to high-impact activities, indoors as well as outdoors. It can also help reduce your reliance on pain medication and avoid negative side-effects.

  • 25% reported a reduction in use of pain medication*
  • 31% reported a reduction in use of OTC anti-inflammatories
  • 35% reported a reduction in use of prescription anti-inflammatories*

Barely There. Feel unconstrained – this lightweight, low-profile brace fits comfortably and unobtrusively underneath your clothing.Convenient. Manage your pain relief on the go with the easy-to-adjust SmartDosing®dials for a rapid response to changing levels of pain.Simple to Apply. Get moving quickly and easily, with just two buckles needed for intuitive brace application.Breathable. Stay comfortable with breathable liners and vents to help you keep cool as the adventure unfolds.


Circumference measurement: 6" (15cm) below mid-patella (knee cap)

* Briggs, K.K., Matheny, L.M., and Steadman, J.R. 2012. Improvement in quality of life with use of an unloader knee brace in active patients with OA: A prospective cohort study. J Knee Surg 25, 417-422.