Abstract：
:Core decompression is a minimally invasive surgical technique used to treat patients with avascular necrosis of the femoral head. The procedure requires an entry hole in the lateral cortex of the femur which potentially leaves patients susceptible to subtrochanteric fractures. The purpose of this study was to determine if filling the core decompression tract with synthetic bone-graft mechanically strengthens the proximal femur. Twenty composite synthetic femurs underwent a core decompression procedure; ten were augmented with synthetic bone-graft (PRO-DENSE™, Wright Medical) and ten femurs were left unfilled as a control group. Compressive testing to failure was performed using a mechanical testing machine. Stiffness, fracture load, and toughness did not significantly differ between groups. More subtrochanteric fractures were seen in the control group (6 of 10 specimens) compared to the bone-graft augmented group (2 of 10 specimens). In conclusion, augmentation of a core decompression tract does not improve mechanical properties in a synthetic bone model but may be protective of subtrochanteric fracture.
journal_name
J Mech Behav Biomed Materauthors
Hockett SA,Sherrill JT,Self M,Mears SC,Barnes CL,Mannen EMdoi
10.1016/j.jmbbm.2020.104263subject
Has Abstractpub_date
2021-03-01 00:00:00pages
104263eissn
1751-6161issn
1878-0180pii
S1751-6161(20)30800-6journal_volume
115pub_type
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