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Unloader One®

Unloader One®


HC000987

Unloader One® is a comfortable, lightweight, low-profile brace that provides excellent suspension and unloading leverage. Utilizing Össur’s clinically proven 3-Points of Leverage, the dual Dynamic Force Straps are easily fine-tuned using the SmartDosing® system. Recent research demonstrates that Unloader One reduces pain, improves function and decreases the use of pain medication.

  • Mild to severe unicompartmental osteoarthritis
  • Unicompartmental knee conditions requiring load reduction, such as Articular Cartilage Defect Repair,  Avascular Necrosis, or Tibial Plateau Fracture
  • Thigh circumferences of 13.5” to 29” (34.3cm to 73.5cm) and calf circumferences of 9.8” to 24” (24.9cm to 61.5cm)
  • All non-contact activities

Features and benefits

  • Össur’s Sensil® liners are designed to improve comfort and reduce migration
  • Color-coded Quick Fit buckles simplify application and removal

Visit the Unloader website to start your journey.

Addressing the need for those suffering from knee osteoarthritis for clinically proven treatment options that do not require surgery or use of painkillers, we now offer a dedicated website for people looking for high quality bracing options for knee pain.

Order Information

Unloader One Short - Medial
SmartDosing Part #Ratchet Part #LegCompartmentSizeMeasuring*
B-241518711 B-241519711 Right Medial X-Small 9.8 - 12.2" / 25 - 31cm
B-241618711 B-241619711 Left Medial X-Small 9.8 - 12.2" / 25 - 31cm
B-241518712 B-241519712 Right Medial Small 12.2 - 14" / 31 - 35.5cm
B-241618712 B-241619712 Left Medial Small 12.2 - 14" / 31 - 35.5cm
B-241518713 B-241519713 Right Medial Medium 14 - 16.75" / 35.5 - 42.5cm
B-241618713 B-241619713 Left Medial Medium 14 - 16.75" / 35.5 - 42.5cm
B-241518714 B-241519714 Right Medial Large 16.75-20” / 42.5 - 51cm
B-241618714 B-241619714 Left Medial Large 16.75-20” / 42.5 - 51cm
B-241518715 B-241519715 Right Medial XLarge 20-24” / 51 - 61.5cm
B-241618715 B-241619715 Left Medial XLarge 20-24” / 51 - 61.5cm
Circumference: 6" / 15cm below mid-patella
Unloader One Short - Lateral
Part# w. SmartDosingPart# w. RatchetLegCompartmentSizeMeasuring*
B-241528711 B-241529711 Right Lateral X-Small 9.8 - 12.2" / 25 - 31cm
B-241628711 B-241629711 Left Lateral X-Small 9.8 - 12.2" / 25 - 31cm
B-241528712 B-241529712 Right Lateral Small 12.2 - 14" / 31 - 35.5cm
B-241628712 B-241629712 Left Lateral Small 12.2 - 14" / 31 - 35.5cm
B-241528713 B-241529713 Right Lateral Medium 14 - 16.75" / 35.5 - 42.5cm
B-241628713 B-241629713 Left Lateral Medium 14 - 16.75" / 35.5 - 42.5cm
B-241528714 B-241529714 Right Lateral Large 16.75-20” / 42.5 - 51cm
B-241628714 B-241629714 Left Lateral Large 16.75-20” / 42.5 - 51cm
B-241528715 B-241529715 Right Lateral XLarge 20-24” / 51 - 61.5cm
B-241628715 B-241629715 Left Lateral XLarge 20-24” / 51 - 61.5cm
Circumference: 6" below mid-patella
Unloader One - Medial
Part# w. SmartDosingPart# w. RatchetLegCompartmentSizeMeasuring*
B-240518712 B-240519712 Right Medial Small 12.2 - 14" / 31 - 35.5cm
B-240618712 B-240619712 Left Medial Small 12.2 - 14" / 31 - 35.5cm
B-240518713 B-240519713 Right Medial Medium 14 - 16.75" / 35.5 - 42.5cm
B-240618713 B-240619713 Left Medial Medium 14 - 16.75" / 35.5 - 42.5cm
B-240518714 B-240519714 Right Medial Large 16.75-20” / 42.5 - 51cm
B-240618714 B-240619714 Left Medial Large 16.75-20” / 42.5 - 51cm
B-240518715 B-240519715 Right Medial XLarge 20-24” / 51 - 61.5cm
B-240618715 B-240619715 Left Medial XLarge 20-24” / 51 - 61.5cm
Circumference: 6" below mid-patella
Unloader One - Lateral
SmartDosing Part #Ratchet Part #LegCompartmentSizeMeasuring*
B-240528712 B-240529712 Right Lateral Small 12.2 - 14" / 31 - 35.5cm
B-240628712 B-240629712 Left Lateral Small 12.2 - 14" / 31 - 35.5cm
B-240528713 B-240529713 Right Lateral Medium 14 - 16.75" / 35.5 - 42.5cm
B-240628713 B-240629713 Left Lateral Medium 14 - 16.75" / 35.5 - 42.5cm
B-240528714 B-240529714 Right Lateral Large 16.75-20” / 42.5 - 51cm
B-240628714 B-240629714 Left Lateral Large 16.75-20” / 42.5 - 51cm
B-240528715 B-240529715 Right Lateral XLarge 20-24” / 51 - 61.5cm
B-240628715 B-240629715 Left Lateral XLarge 20-24” / 51 - 61.5cm
Circumference: 6" below mid-patella
Össur Knee Undersleeves
*Circumference: 6" above mid-patella
Grey Undersleeve Part# SizeMeasuring*
B-250150201 X-Small 12-15in (30.5-38cm)
B-250150202 Small 15-18in (38-45.5cm)
B-250150203 Medium 18-22in (45.5-56cm)
B-250150204 Large 22-26in (56-66cm)
B-250150205 X-Large 26-29in (66-73.5cm)
B-250150206 2X-Large 29-33in (73.5-84cm)