SKU: 41983482888

onJoy FullForce CI – Brand Zero-Friction Combined Instability Ligament Support

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Description

onJoy FullForce CI – Brand Zero-Friction Combined Instability Ligament SupportDonJoy FullForce CI Ligament Knee Brace The DonJoy FullForce CI (Combined Instability) is a premier clinical orthosis engineered for the complex management of multi ligamentous injuries, specifically addressing combined ACL and PCL instabilities. By integrating a high strength, aircraft grade aluminum frame with DonJoys patented 4 Point Leverage System, this brace creates a Zero Friction environment for joint stabilization. The CI configuration

DonJoy FullForce CI Ligament Knee Brace

The DonJoy FullForce CI (Combined Instability) is a premier clinical orthosis engineered for the complex management of multi-ligamentous injuries, specifically addressing combined ACL and PCL instabilities. By integrating a high-strength, aircraft-grade aluminum frame with DonJoy’s patented 4-Point Leverage System, this brace creates a Zero-Friction environment for joint stabilization. The CI configuration features additional strapping to provide comprehensive control of both anterior and posterior tibial translation. Designed for the active patient, its sleek, low-profile geometry minimizes bulk while maximizing mechanical leverage, and the FourcePoint™ hinge technology dampens joint extension to protect healing tissues during high-impact athletic movements.

Have questions about multi-ligament stability, CI strapping, or national delivery? Speak with a Clinical Mobility Expert now: 866-218-0902


Clinical Features & Patient Benefits

  • Combined Instability (CI) Strapping: Features specialized posterior and anterior straps to provide "Zero-Friction" stabilization for both ACL and PCL deficient knees.
  • 4-Point Leverage System: A clinically proven mechanical design that provides "Zero-Friction" anatomical guidance, significantly reducing strain on the ACL and PCL during active use.
  • FourcePoint™ Hinge Technology: Utilizes a spring-loaded "Zero-Friction" dampening system that increases resistance during terminal extension, protecting the graft from "at-risk" positions.
  • Low-Profile Aluminum Frame: Constructed from aircraft-grade aluminum to provide "Zero-Friction" structural integrity with a sleek, lightweight design that fits comfortably under athletic gear.

The Clinical Authority: Why Professionals Trust the FullForce CI

Orthopedic surgeons and Rehabilitation Specialists specify the DonJoy FullForce CI for patients requiring the highest level of mechanical protection following multi-ligament reconstruction. Its "Zero-Friction" environment is the gold standard for managing complex instabilities where both the ACL and PCL are compromised. By providing a rigid external frame that manages both anterior and posterior tibial translation, the brace protects the structural integrity of the joint during the critical stages of remodeling. This targeted approach is highly effective for athletes returning to sports that involve high-velocity pivoting, cutting, and rapid deceleration.


FAQ: Multi-Ligament Protection & Use

What makes the "CI" version different from the standard FullForce?
The "Zero-Friction" CI version includes extra strapping and structural reinforcements specifically designed to support the knee when multiple ligaments (like the ACL and PCL) are injured simultaneously.

Is this brace suitable for basketball or soccer?
Absolutely. The "Zero-Friction" lightweight frame is engineered for high-performance sports, providing the rigidity needed for impact protection without sacrificing speed.

Does it fit either leg?
No. To ensure the 4-Point Leverage System and anatomical hinges are correctly aligned, you must specify the Left or Right knee when ordering.


Specifications & Sizing Table

Selection is based on three measurements: Thigh (6" above knee center), Knee Center, and Calf (6" below knee center). Measure carefully for an optimal "Zero-Friction" clinical fit:

Size Thigh (6" Above) Knee Center Calf (6" Below)
X-Small 13" – 15.5" 12" – 13" 10" – 12"
Small 15.5" – 18.5" 13" – 14" 12" – 14"
Medium 18.5" – 21" 14" – 15" 14" – 16"
Large 21" – 23.5" 15" – 17" 16" – 18"
X-Large 23.5" – 26.5" 17" – 19" 18" – 20"
2X-Large 26.5" – 29.5" 19" – 21" 20" – 22"
3X-Large 29.5" – 32" 21" – 23" 22" – 24"

Fast National Delivery Available
Need this high-performance CI stability delivered to your door? We provide fast, reliable national shipping. For our local Southwest Florida neighbors, we also offer same-day pickup at our showrooms in Sarasota, Fort Myers, and Naples.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 41983482888

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New York, US
★★★★★ 5
Good shoes
Size: 7, Color: British Tan/Ivry, Size: 7, Color: British Tan/Ivry
Look very nice these shoes, speally to go out to dinner with the family, are really light weight, great quelith, and great softness
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Belleville, US
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Nice Shoes
Size: 10.5, Color: British Tan/Ivry
Nice pair of shoes for my feet. Fits comfortably and nice cushion when walking. I would buy another pair.
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MR. H.
Port Orchard, US
★★★★★ 5
Super comfortable!
Size: 9, Color: Navy Blazer/Ivor
Some of the most comfortable shoes that I've ever worn/walked in! Super light on my feet. Nice casual looking and comfortable shoe for a reasonable price. I already brought 3 pair.
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deloris s.
Port Orchard, US
★★★★★ 5
Comfortable Shoes
Size: 12, Color: Navy Blazer/Ivor
This is the second time I purchased this style of shoes. They are extremely comfortable. They can be worn on casual and business events.
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LindyB
Omaha, US
★★★★★ 5
Great dressy sneaker to wear with business casual or jeans
Size: 11, Color: British Tan/Ivry
I got these for my husband to wear with jeans or business casual dress pants. They look sharp and professional and dress up jeans if you're going out. He says they fit comfortably and he can walk on them all day without his feet hurting. They are beautiful genuine leather so they don't get stinky. I got my husband's normal size and they fit to size.
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Reviewed in the United States on February 11, 2026

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