Patient-Specific Instruments for Total Knee Replacement: Based on MRI and Whole-Leg Radiograms (VISIONAIRE™)
The VISIONAIRE™ (Smith & Nephew) patient-specific instrumentation is based on a magnetic resonance imaging (MRI) scan of the knee and a whole-leg standing radiogram for calculation of the axes. The preoperative planning is based on the surgeon’s individual preferences and can still be changed during the planning process. The surgeon can more easily control the whole-leg standing radiogram measurements than the axes that are calculated from computed tomography (CT) or MRI data. VISIONAIRETM instruments already include the cutting slots and are fully compatible with conventional instruments, in case the surgeon wishes to change any parameters during surgery.
KeywordsTotal Knee Arthroplasty Total Knee Replacement Tibial Slope Rotational Alignment Cutting Block
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