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Related Experiment Videos

Resorbable fixation techniques for genioplasty.

R C Edwards1, K D Kiely, B L Eppley

  • 1Department of Oral and Maxillofacial Surgery, 1st Medical Group, Langley AFB, VA, USA.

Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons
|March 15, 2000
PubMed
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Resorbable polylactic-polyglycolic acid (PLGA) devices, including lag screws and plates, effectively stabilize bone during genioplasty. This study found no postoperative complications, demonstrating their viability for mandibular osteotomies.

Area of Science:

  • Oral and Maxillofacial Surgery
  • Biomaterials Science
  • Orthognathic Surgery

Background:

  • Genioplasty involves altering the chin's shape and position.
  • Traditional fixation methods may have limitations.
  • Resorbable fixation offers potential advantages in bone healing and avoids hardware removal.

Purpose of the Study:

  • To evaluate the effectiveness and capability of resorbable polylactic-polyglycolic acid (PLGA) fixation devices in genioplasty.
  • To assess the stability and outcomes of using PLGA lag screws and plates in anterior mandibular osteotomies.

Main Methods:

  • A prospective study involving 20 patients undergoing genioplasty.
  • Fixation was achieved using either 2.5-mm PLGA lag screws or 2.0-mm PLGA plates and screws.

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  • Surgical procedures included mandibular advancement, setback, and vertical reduction.

    • Main Results:

    • Twenty-one anterior mandibular osteotomies were performed.
    • The average advancement was 7.6 mm, average horizontal setback was 6.0 mm, and average vertical reduction was 7.0 mm.
    • Intraoperative stability was satisfactory in all cases, with no postoperative infections or segmental instability observed up to 6 months.

    Conclusions:

    • Resorbable PLGA lag screw and plate fixation is a safe and effective alternative for anterior horizontal mandibular osteotomies.
    • These devices provide reliable stability and favorable outcomes in genioplasty surgery.
    • The use of resorbable fixation eliminates the need for secondary hardware removal procedures.