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Table 1 Patient demographics and patellar cartilage grade

From: Influence of femoral implant design modification on anterior knee pain and patellar crepitus in patients who underwent total knee arthroplasty without patella resurfacing

MeasureControl GroupStudy Groupp value
Patients6262
Knees9085
Gender  
 Male1010 
 Female5252 
Side  0.362a
 unilateral3439 
 bilateral2823 
Age64.98 ± 4.7965.06 ± 4.420.516b
BMI26.13 ± 2.7825.81 ± 2.820.878c
Follow-up1.0 ± 0.44 (0.9–1.1)1.0 ± 0.53 (0.9–1.1)0.226c
Patellar cartilage grade2.16 ± 0.7292.26 ± 0.6760.670c
  1. aPearson Chi-squared test
  2. bIndependent-samples t-test
  3. cNon-parametric Mann–Whitney U test