Authors: Tobias Freitag MarieAnne Hein Dirk Wernerus Heiko Reichel Ralf Bieger
Publish Date: 2015/11/27
Volume: 136, Issue: 1, Pages: 125-130
Abstract
One hundred and fortyfour consecutive patients undergoing total hip arthroplasty were randomized to either a Fitmore short or a cementless straight stem both Zimmer Winterthur Switzerland Periprosthetic bone mineral density BMD was measured using dualenergy Xray absorptiometry performed the day before surgery and at 7 days 3 months and 1 year postoperatively Furthermore the HHS and the WOMAC were obtainedOne hundred and thirtyeight patients completed 1year followup Periprosthetic BMD changes at 1 year were most pronounced in the proximal medial region of interest ROI 7 with −172 after short stem and −167 after straight implantation p = 067 However there was significantly less BMD reduction in ROI 6 following short −47 versus straight stem −108 implantation p = 001 There were no significant differences between the two groups in terms of the HHS and the WOMAC either before or after surgery
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