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: