Table 3.

Associations between dGEMRIC index and physical assessment variables*.

Medial Adjusted dGEMRIC Index**Lateral Adjusted dGEMRIC Index**Medial dGEMRIC IndexLateral dGEMRIC Index
B (95% CI)r2B (95% CI)r2B (95% CI)r2B (95% CI)r2
Knee range of motion−0.23 (−2.41 to −1.95)0.192.25 (−0.04 to −4.55)0.15−0.23 (−2.41 to −1.95)0.152.25 (−0.04 to −4.55)0.12
Varus knee alignment41.39 (−0.01 to 82.79)0.36NANA41.39 (−0.02 to 82.79)0.34NANA
Valgus knee alignmentNANA9.93 (−8.44 to 28.31)0.20NANA9.93 (−8.44 to 28.31)0.11
Quadriceps strength−0.33 (−1.51 to 0.84)0.191.42 (0.22 to 2.62)0.17−0.34 (−1.52 to 0.84)0.151.42 (0.22 to 2.62)0.14
  • * Adjusted for age, sex, BMI, and clinical knee OA;

  • ** adjusted for BMI dose correction equation (4).

  • Statistically significant result. NA: not applicable; dGEMRIC: delayed gadolinium-enhanced magnetic resonance imaging of cartilage: BMI: body mass index.