Medical professionals

At only half the weight of competitive braces, the Unloader One osteoarthritis knee brace offers comfort & suspension without sacrificing the functionality of the clinically proven Ossur Unloader design.

This osteoarthritis knee brace combines a streamlined, flexible upright with Dual Dynamic Force Straps to generate more unloading leverage than any Unloader to date. By incorporating light weight shells, with Sensil® silicone liner technology, the Unloader One knee brace provides a stable and comfortable platform for the dual dynamic force strap system. Quick fit buckles and breathable liners help ensure better patient compliance. The patient can measure and adjust the amount of unloading needed using the unique ratcheting Dynamic Force Control system.

Indications for Use

  • Mild to severe unicompartmental osteoarthritis (OA) 
  • Unicompartmental knee conditions requiring load reduction
  • Thigh circumferences of 13.5" (34.3cm) to 29" (73.5cm) and calf circumferences of 9.8" (25cm) to 24" (61.5cm) 
  • All activity levels, non contact

Product Highlights

  • Dual Dynamic Force Straps increase unloading capabilities and prevent brace rotation
  • Tool-free, racheting Dynamic Force Control System enables self-dosing for easier pain management
  • Quick Fit Buckles with leverage arms enable easy application and removal without the need for cumbersome strap adjustment
  • Breathable liners featuring Ossur Sensil® silicone technology on an Aerospacer base material prevents migration
  • Flexible, low-profile, hinged upright contours to individual anatomy and allows use underneath clothing 
  • Quick Connect Strapping for tool-free removal and replacement 
  • Lightweight frame is perforated for flexibility and ventilation



Unloader One Custom
Part# Leg Measuring Color
CCS= Coordinate Cast System     CAD = Computer Aided Design
B-115500110 Right CCS, CAD, Cast Black
B-115600110 Left CCS, CAD, Cast Black
B-115501710  Right  CCS, CAD, Cast  Grey
B-115601710  Left  CCS, CAD, Cast  Grey

With each brace order, one of the following is available at no extra fee:

  1. AMS wrap
  2. Replacement strap kits are also available.

Ossur AcademyÖssur Academy now offers the Unloader One Competency Program. The program is an online training intended to enhance the successful clinical outcomes for the practitioner. This program offers key information and direction on the proper technique in measurement for and fitting of the Unloader One osteoarthritis knee orthosis.

Get more information on the Unloader One Competency Program and other online education resources made available by Össur Academy

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