Placement of a Compass Knee Hinge: Surgical Technique

Area of Science:

• Orthopedic Surgery
• Biomechanical Engineering

Background:

• Highly unstable knee dislocations present significant treatment challenges.
• The Compass Knee Hinge offers a potential solution for managing such complex injuries.

Purpose of the Study:

• To describe the surgical technique and application of the Compass Knee Hinge for treating knee dislocations.
• To evaluate the utility of the Compass Knee Hinge in conjunction with concurrent ligamentous reconstructions.

Main Methods:

• The technique involves precise placement of a centering wire at the knee's isometric point.
• The Compass Knee Hinge is then applied over the wire, with specific considerations for concurrent posteromedial or posterolateral corner repairs.
• Postoperative progressive rehabilitation protocols are essential for restoring knee motion.

Main Results:

• The described technique was successfully applied to 55 patients with 56 knee dislocations.
• The hinge was used in conjunction with various ligamentous reconstructions, indicating its versatility.

Conclusions:

• The Compass Knee Hinge is a valuable component in the treatment of highly unstable knee dislocations.
• This method, when combined with appropriate rehabilitation, facilitates patient recovery and restoration of knee function.