1. Kaptein BL, GarlingEH VER et al (2008) Roentgen stereophotogrammetric analysis: technique and clinical relevance. J Med Biomech 23:337–346
2. The Norwegian Arthroplasty Register (2010) Annual report 2010. The Norwegian Arthroplasty Register. Available from http://nrlweb.ihelse.net/eng/Report_2010.pdf
3. Garellick G, Karrholm J, Rogmark C, Herberts P (2010) Goteborg, Sweden: Swedish Hip Arthroplasty Register Annual Report. Available at: www.shpr.se/Libraries/Documents/AnnualReport-2010-2-eng.sflb.ashx . Accessed 28 May 2013
4. Clohisy JC, Calvert G, Tull F et al (2004) Reasons for revision hip surgery: a retrospective review. Clin Orthop Relat Res 429:188–1 92
5. Dalury DF, Pomeroy DL, Gorab RS et al (2013) Why are total knee arthroplasties being revised? J Arthroplast 28:120–121