AI Article Synopsis
- The study aimed to analyze the risk of subtrochanteric stress fractures and the biomechanical stability between two fixation methods: the Femoral Neck System (FNS) and multiple screw fixation (MSF).
- Eight pairs of cadaver femurs were tested under simulated single-leg load to compare how each fixation method performed.
- Results showed no failures in either method during testing, with no significant differences in force or loading cycles, indicating that FNS does not increase the risk of fractures or affect stability compared to MSF.
Article Abstract
Purpose: This study sought to compare the risk of subtrochanteric stress-riser fractures and biomechanical stability of the Femoral Neck System (FNS) versus multiple screw fixation (MSF).
Methods: Eight paired cadaveric femurs were randomly assigned to FNS or MSF. Physiologic load mimicking single leg stance at the subtrochanteric region was applied to the constructs.
Results: No constructs failed in the subtrochanteric region during loading. There was no significant difference in force (P = 0.364) or loading cycles (P = 0.348) between groups.
Conclusion: FNS constructs were not associated with an increased incidence of iatrogenic subtrochanteric fractures or biomechanical stability versus MSF.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8907549 | PMC |
| http://dx.doi.org/10.1016/j.jor.2022.02.016 | DOI Listing |
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