Study on Condylar Resorption After Jaw Surgery
Author Information
Author(s): Verhelst Pieter-Jan, Janssens Sigrid, Matthews Harold, Begnoni Giacomo, Claes Peter, Shaheen Eman, Peeters Hilde, Politis Constantinus, Jacobs Reinhilde
Primary Institution: KU Leuven, Leuven, Belgium
Hypothesis
What are the risk factors for condylar resorption following orthognathic surgery?
Conclusion
Condylar resorption occurs in 9.5% of patients undergoing orthognathic surgery, with specific risk factors identified.
Supporting Evidence
- 9.5% of patients developed condylar resorption.
- Patients with resorption had an average of 17% volume loss.
- Risk factors included younger age and larger mandibular advancements.
- Machine learning identified mandibular advancement as the most important predictor.
Takeaway
About 1 in 10 people who have jaw surgery might have a problem called condylar resorption, which means part of their jaw bone shrinks.
Methodology
This was a prospective observational study using data from the LORTHOG registry, including 200 patients who underwent orthognathic surgery.
Potential Biases
Potential bias due to the single surgical protocol and limited patient demographics.
Limitations
The study had a limited follow-up period of one year and a relatively small number of resorption cases.
Participant Demographics
{"age_mean":24.5,"age_sd":11.4,"sex_distribution":{"male":42,"female":58},"class_distribution":{"class_II":80,"class_III":20},"average_BMI":22.1}
Statistical Information
P-Value
0.027
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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