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Table 1 Reliability assessment

From: The patellofemoral morphology and the normal predicted value of tibial tuberosity-trochlear groove distance in the Chinese population

Variable

Interrater (ICC)

Intrarater (ICC)

PT(mm)

0.987

0.988

PFT(mm)

0.959

0.962

PW(mm)

0.935

0.974

PLFW(mm)

0.989

0.992

PLL(mm)

0.990

0.991

PAL(mm)

0.858

0.958

fML(mm)

0.967

0.971

fAP(mm)

0.956

0.959

tML(mm)

0.987

0.991

tAP(mm)

0.988

0.991

TTTG(mm)

0.923

0.956

AFO(mm)

0.959

0.973

PFO(mm)

0.988

0.988

SA(°)

0.976

0.984

LTI(°)

0.973

0.981

MTI(°)

0.973

0.982

TA(°)

0.979

0.979

  1. AFO anterior femoral offset, fAP anteroposterior size of the femur, fML mediolateral size of the femur, LTI Lateral trochlear inclination, MTI medial trochlear inclination, PAL longitudinal length of the articulating surface of the patella, PFO posterior femoral offset, PFT patella facet thickness, PLFW  patella lateral facet width, PLL longitudinal length of the whole patella, PT patella thickness, PW patella width, SA sulcus angle, TA trochlear angle, tAP  anteroposterior size of the tibia, tML mediolateral size of the tibia ICC intraclass correlation coefficient