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Official Journal of the Italian Society of Orthopaedics and Traumatology

Table 2 Observed micromotion at 2-year follow-up, mean (SD)

From: A prospective randomised radiostereometric analysis trial of SmartSet HV and Palacos R bone cements in primary total hip arthroplasty

Axes Rotation (°) (SD) Translation (mm) (SD)
X Y Z X Y Z
SmartSet HV −0.13 (0.49) 0.91 (0.71) −0.08 (0.18) 0.08 (0.11) −0.15 (0.08) −0.06 (0.22)
Palacos R −0.21 (0.35) 1.19 (0.96) −0.16 (0.16) 0.03 (0.08) −0.16 (0.06) 0.02 (0.23)
Difference 0.08 −0.28 0.08 0.05 0.01 −0.08
95% CI of the difference
 Upper 0.42 0.37 0.21 0.13 0.07 0.10
 Lower −0.25 −0.94 −0.05 −0.02 −0.05 −0.25
 P value 0.60 0.38 0.20 0.16 0.74 0.36
  1. CI, confidence interval