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Table 5 Mean (SD) BMD (g/cm2) in the 4 ROIs around the stem in proximal tibia

From: Quantitative measurements of adaptive bone remodeling around the cemented Zimmer® segmental stem after tumor resection arthroplasty using dual-energy x-ray absorptiometry

  BMD (g/cm2)
Postoperative (n = 2)
BMD (g/cm2)
0–3 months (n = 2)
BMD (g/cm2)
0–6 months (n = 2)
BMD (g/cm2)
0–12 months (n = 2)
ROI1 1.858 1.699 1.595 1.767
 Range 1.825–1890 1.657–1.741 1.486–1.703 1.752–1.782
 SD 0.05 0.06 0.15 0.02
 ΔBMD%   −9 −14 −5
ROI2 1.775 1.727 1.591 1.671
 Range 1.743–1.807 1.708–1.745 1.507–1.674 1.665–1.676
 SD 0.05 0.03 0.12 0.01
 ΔBMD%   −3 −10 −6
ROI3 1.683 1.626 1.489 1.540
 Range 1.651–1.714 1.594–1.657 1.417–1.561 1.449–1.631
 SD 0.04 0.04 0.10 0.13
 ΔBMD%   −3 −12 −9
ROI4 1.527 1.674 1.408 1.412
 Range 1.449–1.605 1.475–1.872 1.389–1.427 1.319–1.505
 SD 0.11 0.28 0.03 0.13
 ΔBMD%   + 10 −8 −8