Unilateral uniplanar modular external fixator for percutaneous proximal femoral osteotomy in children: surgical technique

  • Valentino CoppaEmail author
  • Mario Marinelli
  • Nicola Specchia
Technical Note • HIP - PAEDIATRICS


Varus derotation femoral osteotomy (VDFO) is a commonly used surgical procedure in association with pelvic osteotomy for dislocated hip in developmental hip dysplasia. Several types of internal fixation devices were described in the literature, but none of them showed a superiority or a lower rate of complication over the others. Different types of external fixator were also described for proximal osteotomy fixation with good results. We describe the surgical technique of the VDFO using a modular external fixator with an illustrative case.


Congenital hip dysplasia Developmental hip dislocation External fixator External fixation device Femoral osteotomy 


Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

For this type of study, formal consent is not required.

Informed consent

Informed consent was obtained from all individual participants included in the study.


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Copyright information

© Springer-Verlag France SAS, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Clinical Orthopedics, Department of Clinical and Molecular Science, School of MedicineUniversità Politecnica delle MarcheAnconaItaly
  2. 2.Clinic of Adult and Paediatric OrthopaedicAzienda Ospedaliero-Universitaria, Ospedali Riuniti di AnconaAnconaItaly

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