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Updated: Oct 5, 2026

An Intramedullary Locking Nail for Standardized Fixation of Femur Osteotomies to Analyze Normal and Defective Bone Healing in Mice
Published on: November 13, 2016
Ender nail fixation of pediatric femur fractures: a biomechanical analysis
S S Lee1, A T Mahar, P O Newton
1Children's Hospital and Health Center and University of California at San Diego, San Diego, California 92123-4293, U.S.A.
Summary:
Biomechanical testing was performed to determine the effects of flexible intramedullary nail fixation on simulated transverse and comminuted midshaft femur fractures using two Ender nails. A synthetic adolescent-size femur model was used. The axial and rotational stiffness values for the simulated comminuted fracture were equivalent to those of the transverse fracture under "touch-down weight-bearing" loads. These data suggest that length and rotational control of comminuted midshaft femur fractures with two divergent Ender nails may be sufficient for early mobilization.

