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Updated: May 28, 2026

A Mouse Distraction Osteogenesis Model
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Published on: November 14, 2018

Distraction osteogenesis using a longitudinal corticotomy.

Ma'ad F Al-Saati1, Robert A Magnussen, Sebastien Lustig

  • 1Orthopaedic Surgery, Centre Albert Trillat, Hôpital de la Croix-Rousse, Lyon, France. dr.alsaati@gmail.com

International Orthopaedics
|October 29, 2011
PubMed
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The longitudinal corticotomy (S-Z osteotomy) significantly speeds up bone healing during tibial distraction osteogenesis compared to transverse corticotomy. This method offers a faster consolidation time for regenerated bone in tibia lengthening procedures.

Area of Science:

  • Orthopedic surgery
  • Regenerative medicine
  • Bone healing

Background:

  • Distraction osteogenesis is a technique used for limb lengthening.
  • Tibial lengthening procedures are complex and require careful management of bone healing.
  • Different osteotomy techniques may influence the rate of bone consolidation.

Purpose of the Study:

  • To compare the efficacy of longitudinal corticotomy (S-Z osteotomy) versus transverse corticotomy in accelerating bone consolidation during tibial distraction osteogenesis.
  • To evaluate the safety and effectiveness of the S-Z osteotomy technique in clinical practice.

Main Methods:

  • A retrospective study involving 67 tibial lengthening procedures in 51 patients.
  • Procedures were performed using either longitudinal (S-Z) or transverse corticotomy.

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  • Patients were monitored until radiographic bone consolidation, with healing index calculated as consolidation time per centimeter of lengthening.

    • Main Results:

    • The S-Z osteotomy group demonstrated a significantly lower healing index (30.8 days/cm) compared to the transverse corticotomy group (46.8 days/cm).
    • Mean consolidation time was reduced in the S-Z osteotomy group (6.3 months) versus the transverse group (8.1 months).
    • No significant difference in mean lengthening achieved between the two groups.

    Conclusions:

    • The S-Z osteotomy is a safe and effective technique for reducing consolidation time in tibial distraction osteogenesis.
    • Longitudinal corticotomy offers a faster bone healing process compared to transverse corticotomy for tibial lengthening.