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. Author manuscript; available in PMC: 2010 Aug 29.
Published in final edited form as: Calcif Tissue Int. 2009 Jan 16;84(3):186–194. doi: 10.1007/s00223-008-9208-4

Table 1.

Size of the tibiofemoral subchondral bone areas in neutral, varus and valgus knees

Neutral Varus Valgus
Mean SD Mean SD Mean SD
MT (cm2) 11.51 1.65 12.65 2.29 10.96 1.28
LT (cm2) 9.78 1.55 10.04 2.20 9.84 1.44
Ratio MT/LT 1.18 0.12 1.28 0.17 1.13 0.13

cMF (cm2) 5.81 0.85 6.17 1.03 5.63 0.75
cLF (cm2) 6.21 0.92 6.46 1.24 6.17 0.76
Ratio cMF/cLF 0.94 0.08 0.97 0.11 0.91 0.07

SD = standard deviation, MT = Medial tibia, LT = lateral tibia, cMF = weight bearing medial femur, cLF weight bearing lateral femur. The ratio MT/LT and cMF/cLF differed significantly between neutral, varus and valgus knees (ANOVA), MT, LT, cMF and cLF were not tested directly for significant differences between neutral varus and valgus knees, because these are more strongly affected by inter-subject differences in bone size than the MT/LT and cMF/cLF ratios.