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Table 4 Inter- and Intraobserver Reliability of the Different Measurements

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

Intraclass Correlation Coefficient (95% CI)

Measurements

 

Before surgery

Last follow-up

Diameter

Intraobserver Reliability

0.986 (0.974–0.992)

0.935 (0.625–0.978)

Interobserver Reliability

0.924 (0.874–0.956)

0.893 (0.829–0.937)

Thickness

Intraobserver Reliability

0.982 (0.967–0.990)

0.981 (0.966–0.990)

Interobserver Reliability

0.931 (0.887–0.960)

0.949 (0.901–0.973)

Wiberg-angle

Intraobserver Reliability

0.978 (0.942–0.990)

0.966 (0.935–0.981)

Interobserver Reliability

0.900 (0.841–0.940)

0.913 (0.863–0.949)

Wiberg-index

Intraobserver Reliability

0.912 (0.754–0.961)

0.899 (0.535–0.963)

Interobserver Reliability

0.852 (0.771–0.911)

0.827 (0.729–0.896)