Medacta GMK Sphere - Index

GMK Sphere Calipered Kinematic Alignment Surgical Technique
2
INDEX
1. INTRODUCTION 4
1.1 Kinematic Alignment approach 4
1.2 Indications 4
1.3 Contraindications 5
1.4 Surgical Approach 5
2. TIBIO-FEMORAL OFFSET MEASUREMENT 5
3. DISTAL FEMORAL RESECTION 6
3.1 Placing the Intramedullary Rod 6
3.2 Positioning the Distal Cutting Guide 7
4. ANTERIOR CUT, POSTERIOR CUT AND CHAMFER 8
4.1 Femoral Sizing 8
4.2 4in1 Cutting Block Positioning 9
4.3 Posterior cut, anterior cut and chamfers 12
4.4 Femoral Upsizing/Downsizing 12
5. TIBIAL RESECTION 13
5.1 Mark the A/P axis on the tibia 13
5.2 Assembling the Extramedullary Guide 13
5.3 Setting the tibial varus/valgus with the extramedullary guide 14
5.4 Setting the tibial slope with the extramedullary guide 14
5.5 Setting the tibial resection level with the extramedullary guide 15
5.6 Stabilization of the tibial cutting block 15
5.7 Removing the extramedullary guide 15
5.8 Tibial resection 16
6. FLEXION GAP CHECK 16
7. EXTENSION GAP CHECK 17
8. TRIAL REDUCTION 18
8.1 Balance the TKA with trial components 19
8.2 Tibial bridge tray 21
9. FINISHING THE FEMUR AND TIBIA 22
9.1 Femoralnishing 22
9.2 Femoralnishingcheck 23
9.3 Tibial Finishing 24
9.4 Tibial stem extension 25