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[Long-term results after genioplasty]
1Kieferorthopädische Abteilung, Zahn-, Mund- und Kieferklinik, Hamburg.
Fortschritte Der Kieferorthopadie
|October 1, 1991
Summary
Genioplasty during orthognathic surgery provides stable chin bone contours. However, predicting soft tissue profile changes remains unreliable, impacting surgical planning for aesthetic outcomes.
Area of Science:
- Oral and Maxillofacial Surgery
- Plastic Surgery
- Orthodontics
Context:
- Genioplasty is often performed concurrently with orthognathic surgery.
- Assessing the stability and soft tissue effects of genioplasty is crucial for surgical outcomes.
Purpose:
- To evaluate the skeletal stability of genioplasty after orthognathic surgery.
- To analyze the correlation between bony chin correction and soft tissue profile changes.
- To determine the predictability of soft tissue response to genioplasty.
Summary:
- Analysis of 21 patients' serial cephalograms revealed stable bony chin contours post-genioplasty, with minimal resorption or displacement.
- Sagittal and vertical chin movements showed high stability over one year.
- Soft tissue changes averaged 71% of bony correction, but with significant individual variability (4%-145%), indicating poor predictability.
Impact:
- Rigid fixation techniques ensure predictable and stable bony results in genioplasty.
- The unpredictable nature of soft tissue response complicates aesthetic planning, necessitating cautious approach.
- This study highlights the need for improved methods in predicting soft tissue behavior for enhanced genioplasty outcomes.