Principles of Alignment in Primary and Revision Knee Replacement
Most agree that current knee replacement surgery is directed toward the resurfacing of the joint with reconstitution of physiological features, and most current designs employ anatomically shaped femoral components. All systems are geared toward the restoration of the load-bearing axis (LBA) as a line of force (body weight) passing through the hip to the ankle through the centre of the knee. Most procedures are aimed to reconstitute the joint line but opinions differ on the coronal orientation of the joint [1–3]. Most systems also advocate balance of the soft tissues [1, 3, 4].
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