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Related Experiment Videos

Biodegradable osteosynthesis in mandibular advancement: a pilot study.

J P Bouwman1, D B Tuinzing

  • 1Department of Oral and Maxillofacial Surgery, Kennemer Gasthuis, Haarlem, The Netherlands.

The British Journal of Oral & Maxillofacial Surgery
|April 15, 1999
PubMed
Summary

This pilot study evaluated biodegradable fixation for mandibular advancement surgery. Both polyglycolide rods and poly(L-lactide) screws demonstrated effective osteosynthesis, with complete ossification observed.

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Area of Science:

  • Oral and Maxillofacial Surgery
  • Biomaterials Science
  • Orthognathic Surgery

Background:

  • This study investigates biodegradable osteosynthesis for mandibular advancement in patients with retrognathia.
  • Focuses on bilateral sagittal split osteotomies of the mandibular ramus.
  • Examines patients with a consistent dentofacial pattern (mandibular retrognathia, low to normal mandibular plane angle).

Observation:

  • Two patients utilized cylindrical self-reinforced polyglycolide (PGA) rods for internal fixation.
  • Two patients were treated with self-reinforced poly(L-lactide) (PLLA) screws (2 mm diameter) for stabilization.
  • Long-term evaluation was performed for both fixation methods.

Findings:

  • Complete ossification was observed at the osteotomy sites in patients treated with PGA rods.

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  • The study discusses the two distinct osteosynthesis techniques employed.
  • Problems encountered with each method of internal fixation are detailed.

    • Implications:

    • Biodegradable materials offer a viable alternative for internal fixation in orthognathic surgery.
    • Understanding the performance of PGA rods and PLLA screws aids in surgical planning.
    • This research contributes to the field of maxillofacial reconstructive surgery and biomaterial applications.