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Table 5 Comparisons of the preoperative and 5-year postoperative patellar cartilage thickness and percentage cartilage thickness

From: No patella resurfacing total knee arthroplasty leads to reduction in the thickness of patellar cartilage to less than half within 5 years: a quantitative longitudinal evaluation using MRI

 

Preoperative

5-year postoperative

P-value

Thickness

% thickness

Thickness

% thickness

Thickness

% thickness

Central facet

2.87 (0.74)

100

1.30 (0.41)

46.3 (12.3)

< 0.0001

< 0.0001

Medial facet

3.03 (0.86)

100

1.38 (0.39)

49.1 (17.8)

< 0.0001

< 0.0001

Lateral facet

3.44 (0.92)

100

1.29 (0.39)

39.3 (12.9)

< 0.0001

< 0.0001

  1. Data are reported as the mean (standard deviation), unless otherwise indicated. Bolded P-values indicate statistical significance (P < .05)
  2. Significance levels with Student’s t-test