Related Experiment Video
Updated: Jul 12, 2026

Creating Rigidly Stabilized Fractures for Assessing Intramembranous Ossification, Distraction Osteogenesis, or Healing of Critical Sized Defects
Published on: April 11, 2012
Step-cut and Butterfly Femoral Osteotomies Following Intraoperative Fracture Propagation during Distraction
Edouard Manche Marghem1, Olivier Cornu1, Loïc Maigret1
1Department of Orthopedic and Trauma, Cliniques Universitaires Saint-Luc UCL, UCLouvain, Brussels, Belgium.
Introduction:
Distraction osteogenesis is usually performed using a low-energy transverse metaphyseal osteotomy.
Case Report:
We report two cases of femoral lengthening in which unintended fracture propagation resulted in non-straight osteotomy configurations (step-cut and butterfly-shaped). In both cases, stable fixation was maintained, and gradual distraction proceeded without complications, with early regenerate formation observed.
Conclusion:
These cases illustrate that, when fundamental biological and mechanical principles are respected, unintended non-straight osteotomies may remain compatible with successful distraction osteogenesis.

