Manual for GMK Sphere Calipered Kinematic Alignment

This manual outlines the surgical technique for the GMK Sphere Calipered Kinematic Alignment Total Knee Arthroplasty. The procedure aims to restore native joint lines and align components with kinematic axes without ligament release.

Key steps include:

• Distal Femoral Resection: Setting the femoral component coincident to the native distal femur, accounting for cartilage wear and saw blade kerf.
• Anterior, Posterior, and Chamfer Cuts: Resecting the femur to align with the posterior articular surface, utilizing a 4in1 cutting block.
• Tibial Resection: Aligning the tibial component with the knee's flexion-extension axis and the native tibia plane, using an extramedullary guide.
• Gap Balancing: Checking and adjusting the flexion and extension gaps to ensure stability and native joint laxity.
• Trial Reduction: Placing trial components to confirm fit, alignment, and range of motion.
• Final Implant: Preparing and implanting the final components.

The technique emphasizes precise measurements and component positioning to achieve optimal patient outcomes.