Table 2

Mean±SD change in cartilage thickness (mm)

Chanwge (mm)*Annual change (%)Cartilage thickness (SRM)
All (n=78)Weight loss (n=59)Weight gain/no change (n=19)All (n=78)Weight loss (n=59)Weight gain/no change (n=19)All (n=78)Weight loss (n=59)Weight gain/no change (n=19)
MT−0.02±0.1−0.006±0.1−0.06±0.2−1.3±9.5−0.5±8.4−3.9±12.1−0.15−0.06−0.35
cMF−0.004±0.20.03±0.2−0.07±0.21.0±17.52.6±18.9−3.6±11.4−0.020.12−0.32
LT−0.006±0.1−0.006±0.1−0.007±0.20.1±8.10.02±7.50.4±10.0−0.05−0.05−0.04
cLF−0. 07±0.2−0.08±0.2−0.05±0.2−3.6±9.3−4.1±9.2−2.1±9.6−0.40−0.45−0.26
  • Weight loss, any loss in weight; no change, no change in weight; weight gain, any gain in weight.

  • * Difference in cartilage thickness between follow-up and baseline.

  • Annual rate of change (%/year) = (change in cartilage thickness/baseline cartilage thickness)×100%.

  • Standardised response mean (mean/SD of change).

  • cLF, central lateral femur58; cMF, central medial femur; LT, lateral tibia; MT, medial tibia.