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Intramembranous ossification is one of the two processes involved in the development of bones within an embryo. The flat bones of the face, most of the cranial bones, and the clavicles are formed via this process. During intramembranous ossification, the bones develop directly from sheets of undifferentiated mesenchymal connective tissue.
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Sonographic Evaluation of Bone Formation After Sagittal Split Ramus Osteotomy.

Kei-ichiro Miura1, Masashi Yoshida1, Kojiro Yamaguchi1

  • 1Department of Regenerative Oral Surgery, Unit of Translational Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan (K.M., I.A.); Department of Oral Surgery, Imaki-ire General Hospital, Kagoshima, Japan (M.Y.); and Departments of Oral and Maxillofacial Surgery (K.Y.) and Orthodontics (R.Y.), Graduate School of Medicine and Dental Sciences, Kagoshima University, Kagoshima, Japan.

Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine
|January 20, 2016
PubMed
Summary

Sonography can effectively evaluate mandible bone healing after orthognathic surgery. Ultrasound measurements of bone gaps showed increasing echo intensity, confirming new bone formation comparable to bone surfaces by four weeks.

Keywords:
head and neck ultrasoundmandibleorthognathic surgerysonography

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Area of Science:

  • Oral and Maxillofacial Surgery
  • Medical Imaging
  • Regenerative Medicine

Background:

  • Orthognathic surgery involves complex bone reconstruction.
  • Accurate assessment of bone healing is crucial for surgical outcomes.
  • Current imaging modalities may have limitations in evaluating early bone regeneration.

Purpose of the Study:

  • To determine the utility of sonography for assessing mandible bone healing.
  • To correlate ultrasound findings with established bone formation markers.
  • To explore sonography as a non-invasive tool for post-orthognathic surgery evaluation.

Main Methods:

  • Ten patients undergoing orthognathic surgery were prospectively studied.
  • Real-time ultrasound was used to measure echo intensities of bone segments and gaps.
  • Measurements were taken at serial time points from 1 day to 4 months post-surgery.

Main Results:

  • Mean echo intensity in the bone gap progressively increased post-surgery.
  • Ultrasound echo intensity in the bone gap matched bone surfaces by 4 weeks.
  • X-ray tomograms corroborated new bone formation in the gap at 4 weeks.

Conclusions:

  • Sonography demonstrates potential as a valuable tool for monitoring mandible bone healing.
  • Ultrasound imaging offers a non-invasive method to assess osseous regeneration after orthognathic procedures.
  • This technique may aid in optimizing patient recovery and treatment planning.