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Table 4 Mean (SD) BMD (g/cm2) in the 4 ROIs around the stem in distal femur

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 = 9)
BMD (g/cm2)
0–3 months (n = 8)
BMD (g/cm2)
0–6 months (n = 9)
BMD (g/cm2)
0–12 months (n = 9)
ROI1 2.163 1.931 2.123 1.905
 Range 1.772–3.191 1.675–2.195 1.574–3.409 1.687–2.143
 SD 0.42 0.16 0.52 0.16
 ΔBMD%   −11 −11 −12
ROI2 2.257 1.926 2.231 2.067
 Range 1.955–3.522 1.087–2.170 1.898–3.133 1.825–2.251
 SD 0.48 0.35 0.37 0.14
 ΔBMD%   −15 −1 −8
ROI3 2.297 2.012 2.254 2.115
 Range 1.955–3.514 1.120–2.625 1.955–2.961 1.893–2.414
 SD 0.48 0.42 0.31 0.16
 ΔBMD%   −12 −2 −8
ROI4 2.100 2.043 2.115 2.034
 Range 1.675–2.486 1.631–2492 1.840–2.365 1.602–2.443
 SD 0.23 0.27 0.18 0.27
 ΔBMD%   −3 + 1 −3