Is There an Increased Risk for Subtrochanteric Stress Fracture with the Femoral Neck System Versus Multiple Cannulated Screws Fixation?

Overview

Journal J Orthop

Specialty Orthopedics

Date 2022 Mar 14

PMID 35280450

Authors

Megan R Hsu

Henry T Shu

Kitchai Luksameearunothai

Adam Margalit

Andrew T Yu

Erik A Hasenboehler

Babar Shafiq

Affiliations

Soon will be listed here.

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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