Biomechanics of periprosthetic femur fractures and early weightbearing

被引:6
作者
Khwaja, Ansab [1 ]
Mahoney, William [1 ]
Johnson, Jay [1 ,2 ]
Trompeter, Alex [3 ]
Lowe, Jason [1 ,2 ]
机构
[1] Univ Arizona, Dept Orthopaed, 1625 N Campbell Ave, Tucson, AZ 85719 USA
[2] Banner Univ Med Grp, Banner Hlth Syst Phoenix, Phoenix, AZ USA
[3] St Georges Univ Hosp, London, England
关键词
Weightbearing; Periprosthetic; Fracture; FEMORAL-SHAFT FRACTURES; TOTAL HIP-ARTHROPLASTY; TOTAL KNEE ARTHROPLASTY; WEIGHT-BEARING; INTERNAL-FIXATION; PLATE FIXATION; OPEN REDUCTION; CLINICAL-OUTCOMES; REVISION HIP; MORTALITY;
D O I
10.1007/s00590-021-02969-3
中图分类号
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学(修复外科学)];
学科分类号
摘要
Purpose The incidence of periprosthetic fractures is expected to rise increase by 4.6% every 10 years between 2015 and 2060. There are few large series examining optimal fixation constructs or the influence of early ambulation on outcome. The purpose of this narrative review is to investigate the published biomechanical considerations for periprosthetic fracture fixation, with specific consideration of early postoperative weightbearing. Methods A literature review was performed to identify fracture incidences, etiology, and current trends in weightbearing after fixation. Benefits of early weightbearing, current constructs, and biomechanics are reviewed. Results The limited data available support medical benefits and increased union rates with early mobilization. Optimal fixation constructs are not agreed upon, but mechanical studies suggest that dual implant constructs can support physiologic weightbearing loads. Conclusion Further clinical trials are required to investigate fracture union and hardware complications in dual implant construct
引用
收藏
页码:861 / 869
页数:9
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