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Table 3 Changes in mean bone mineral density in percent, compared with the first postoperative values

From: Maintenance of bone mineral density after implantation of a femoral neck hip prosthesis

Author FU listed subgroup ROI 1 ROI 2 ROI 3 ROI 4 ROI 5 ROI 6 ROI 7
this study 12 months Cut -0.8 1.6 2.8 -0.4 -0.8 -0.7 0.7
Yamaguchi et al. 12 months fully coated -18.1 -12.1 -7.8 -8.9 -8.3 -14.5 -21.7
  12 months proximal coated -12.3 -8.0 0.3 -3.1 -1.5 -5.3 -17.6
Aldinger et al. 12 months male -15.5 -10.7 -7.6 -6.9 -6.1 -11.5 -25.0
  12 months female -12.0 -2.5 -1.9 -4.7 -3.5 -6.4 -18.8
Venesmaa et al. 12 months anatomic -10.6 -6.7 -2.0 -4.4 -2.2 -9.3 -22.1
Leichtle et al. 6 months custom stem -14.9 -13.3 -11.1 -10.7 -10.8 -12.8 -23.7
  1. Note that the ROIs are defined by the implant size. As such, the location of the ROIs for the short femoral neck implant can not be compared directly to the longer implants.