Figures & data
Table 1. Double examination of 10 patients. The precision is presented as the mean absolute value + 2 SD (95% CI for significant movement)
Table 2. Stem translation and rotation at 3, 12, and 24 months. Absolute values are shown as mean with 95% confidence interval
Table 3. Migration and revision in different RSA studies
Derbyshire B, Porter ML. A study of the elite plus femoral component using radiostereometric analysis. J Bone Joint Surg (Br) 2007; 89(6):730-5. Hauptfleisch J, Glyn-Jones S, Beard DJ, Gill HS, Murray DW. The premature failure of the charnley elite-plus stem: A confirmation of RSA predictions. J Bone Joint Surg (Br) 2006; 88(2):179-83. Sundberg M, Besjakov J, von Schewelow T, Carlsson A. Movement patterns of the C-stem femoral component: An RSA study of 33 primary total hip arthroplasties followed for two years. J Bone Joint Surg (Br) 2005; 87(10):1352-6. Alfaro-Adrian J, Gill HS, Murray DW. Should total hip arthroplasty femoral components be designed to subside? A radiostereometric analysis study of the charnley elite and exeter stems. J Arthroplasty 2001; 16(5):598-606. Karrholm J, Borssen B, Lowenhielm G, Snorrason F. Does early micromotion of femoral stem prostheses matter? 4-7-year stereoradiographic follow-up of 84 cemented prostheses 2. J Bone Joint Surg (Br) 1994; 76(6):912-7. Karrholm J, Anderberg C, Snorrason F, Thanner J, Langeland N, Malchau H, Herberts P. Evaluation of a femoral stem with reduced stiffness. A randomized study with use of radiostereometry and bone densitometry. J Bone Joint Surg (Am) 2002; 84(9):1651-8. Karrholm J, Snorrason F. Subsidence, tip, and hump micromovements of noncoated ribbed femoral prostheses. Clin Orthop 1993; (287):50-60.