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Table 2 Intra- and inter-rater reliability of patellar FHA parameters

From: Relationship between patellofemoral finite helical axis and femoral trans-epicondylar axis using a static magnetic resonance-based methodology

 

Intra-Rater

Inter-Rater

ICC

(95% CI)

ICC

(95% CI)

IPy

0.997

(0.997 to 0.997)

0.995

(0.994 to 0.995)

IPz

0.989

(0.988 to 0.990)

0.941

(0.936 to 0.946)

PRR

0.997

(0.997 to 0.997)

0.996

(0.996 to 0.997)

AF-T

0.981

(0.980 to 0.983)

0.964

(0.960 to 0.967)

AF-C

0.979

(0.978 to 0.981)

0.965

(0.962 to 0.968)

AF-L

0.990

(0.989 to 0.991)

0.983

(0.981 to 0.984)

  1. AF-C angles between the FHA and coronal plane, AF-L angles between the FHA and level plane, AF-T spatial angles between the FHA and femoral TEA, CI confidence interval, FHA finite helical axis, ICC intraclass correlation coefficients, IP intersection position between FHA and midsagittal plane, IPy y coordinate of IP, IPz z coordinate of IP, PRR patellar rotational radius