TMJ related short-term outcomes comparing two different osteosynthesis techniques for bilateral sagittal split osteotomy - 02/02/21
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Abstract |
Objectives |
Bilateral sagittal split osteotomy (BSSO) is a morpho-functional surgery and post-surgical osteosynthesis may influence temporomandibular joint (TMJ) health. Our objective was to evaluate temporomandibular disorders (TMD) and TMJ symptoms after orthognathic surgery according to the type of osteosynthesis used in a population of patients with dentofacial deformities.
Materials and methods |
One hundred and eighty-three consecutive patients undergoing orthodontic and maxillofacial surgery treatment for correction of their malocclusion were recruited for a two-year period at Lille University Hospital. All patients had at least a mandibular BSSO using Epker's technique. Each patient was examined before and one year after orthognathic surgery. We compared osteosynthesis by miniplates fixed with monocortical screws (n=42) and the hybrid fixation with bicortical retro-molar screws used with miniplates (n=141). TMJ health was assessed by monitoring TMD signs and symptoms according to the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) and scores obtained from the “Jaw Pain Function” questionnaire.
Results |
There was no significant difference in pre-operative and one year post-operative RDC/TMD assessments (p≥0.91) or JPF score (p≥0.29) between the two types of osteosynthesis.
Conclusion |
There was no difference in TMJ health between the two techniques of osteosynthesis after BSSO.
Clinical relevance |
In our experience the hybrid technique fixation affords many advantages and does not influence postoperative TMD compared with osteosynthesis by miniplates.
Le texte complet de cet article est disponible en PDF.Keywords : Orthognathic surgery, Osteosynthesis, Hybrid fixation, Temporomandibular disorders, Temporomandibular joint
Plan
Vol 122 - N° 1
P. 70-76 - février 2021 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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