Table 1 Data indicating the patella tendon length (IS index), patella position related to joint surface (BP index), Coronal knee alignment (HKA and Joint Ob) and sagittal alignment (MH slope).

IS index

1.02 (0.88-1.25)

1.06 (0.9-1.28)

1.09 (0.8-1.22)

BP index

0.78 (0.64-0.93)

0.55 (0.42-0.67)*

0.59 (0.38-0.78)*

HKA (°)

169.5 (164-175)

184.4 (179-188)*

183.9 (179-187)*

Joint Ob (°)

Var 5.5 (2-10)@

Val 7.3 (2-13)*

Val 7.7 (4-11)*

MH slope (°)

10.9 (5-15)

10.6 (4-18)

11.8 (8-16)