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Table 4 Clinical outcomes between MRI- versus CT-based PSI after total knee arthroplasty

From: MRI-based or CT-based patient-specific instrumentation in Total knee Arthroplasty: How do the two systems compare?

ParameterMRI group (N = 36)CT group (N = 35)P Value
Knee Society knee score
 preoperative44.3 ± 18.642.8 ± 16.10.725
 2-year follow-up92.7 ± 10.792.2 ± 11.80.815
Knee Society function score
 preoperative48.7 ± 10.846.9 ± 10.40.614
 2-year follow-up91.9 ± 15.889.7 ± 12.90.586
SF-36 (physical function)
 preoperative30.9 ± 9.737.2 ± 8.80.436
 2-year follow-up47.5 ± 8.547.2 ± 8.50.539
SF-36 (mental health)
 preoperative48.2 ± 4.650.7 ± 5.30.487
 2-year follow-up56.5 ± 10.160.8 ± 11.90.639