Table 1

Femoral and tibial cartilage volumes in the tibiofemoral joints

Femoral
Mean (SD) ml
Tibial
Mean (SD) ml
Correlation (R)
Medial tibiofemoral (TF) joint
All subjects (n=82)1.59  (1.0)1.54  (0.74)0.75  (p<0.001)
Subjects with no medial TF OA1-150(n=18)2.07 (0.88)1.76 (0.63)0.70 (p=0.009)
Subjects with medial TF OA (n=64)1.42 (1.00)1.46 (0.77)0.75 (p<0.001)
Subjects with different grades of medial TF joint space narrowing:
 Grade = 0 (n=17)2.27 (0.84)1.86 (0.60)0.79 (p<0.001)
 Grade = 1 (n=26)1.63 (0.98)1.52 (0.89)0.63 (p=0.016)
 Grade = 2 (n=24)0.97 (0.73)1.38 (0.65)0.88 (p=0.01)
 Grade = 3 (n=14)0.69 (0.68)0.74 (0.42)0.98 (p=0.014)
Lateral tibiofemoral joint
All subjects (n=82)1.91 (1.07)1.73 (0.77)0.77 (p<0.001)
Subjects with no lateral TF OA (n=40)2.10 (1.14)1.81 (0.72)0.80 (p<0.001)
Subjects with lateral TF OA (n=42)1.71 (0.99)1.63 (0.83)0.75 (p<0.001)
Subjects with different grades of lateral TF joint space narrowing1-151:
 Grade = 0 (n=39)1.85 (0.73)2.00 (1.00)0.74 (p<0.001)
 Grade = 1 (n=24)1.54 (0.86)1.44 (1.07)0.88 (p<0.000)
 Grade = 2 (n=14)1.24 (1.12)1.15 (0.74)0.84 (p=0.01)
  • 1-150 OA is defined as the presence of osteophytes or joint space narrowing score of ⩾1, or both.

  • 1-151 Only five subjects had grade 3 lateral joint space narrowing, so no data are presented.