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Table 3 Measurements of the patella before surgery and at the last follow-up

From: The morphology of patella changed significantly after soft tissue correction for children with recurrent patella dislocation

Measurement

Affected side

Unaffected side

P Value

Diameter (mm) before surgery

3.34 ± 0.37

3.27 ± 0.39

0.53

Diameter (mm) at the last follow-up

3.75 ± 0.30

3.72 ± 0.37

0.74

Thickness (mm) before surgery

1.63 ± 0.32

1.71 ± 0.36

0.42

Thickness (mm) at the last follow-up

1.84 ± 0.33

1.94 ± 0.41

0.36

Wiberg-angle (°) before surgery

140.2 ± 14.3

141.8 ± 12.0

0.69

Wiberg-angle (°)at the last follow-up

141.6 ± 13.1

139.2 ± 10.2

0.51

 

P = 0.75

P = 0.44

 

Wiberg-index before surgery

0.74 ± 0.06

0.64 ± 0.04

< 0.01

Wiberg-index at the last follow-up

0.67 ± 0.05

0.65 ± 0.04

0.10

 

P < 0.01

P = 0.64