Bone remodelling after femoral short stem implantation in total hip arthroplasty: 1-year results from a randomized DEXA study.-临床诊疗知识库

Bone remodelling after femoral short stem implantation in total hip arthroplasty: 1-year results from a randomized DEXA study.

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作者：

Tobias, Freitag；Marie-Anne, Hein；Dirk, Wernerus；Heiko, Reichel；Ralf, Bieger

来源：

Archives of orthopaedic and trauma surgery 2016 年 136卷 1期

标签：

Arthroplasty DEXA Hip Prosthesis design Short stem Stress shielding

Short stem prostheses have been developed to preserve proximal femoral bone stock. This prospective, randomized study compared periprosthetic bone remodelling following short and straight stem implantation 1 year after surgery.One hundred and forty-four 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 dual-energy X-ray absorptiometry performed the day before surgery and at 7 days, 3 months and 1 year postoperatively. Furthermore, the HHS and the WOMAC were obtained.One hundred and thirty-eight patients completed 1-year follow-up. Periprosthetic BMD changes at 1 year were most pronounced in the proximal medial region of interest (ROI) 7 with -17.2

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