Changes in Condylar Position After Mandibular Reconstruction With Condylar Head Preservation by Computed Tomography

Area of Science:

• Oral and Maxillofacial Surgery
• Reconstructive Surgery
• Temporomandibular Joint (TMJ) Research

Background:

• Mandibular reconstruction is crucial for restoring function after defects.
• The free fibula flap is a common method for mandibular reconstruction.
• Condylar head preservation during reconstruction may influence outcomes.

Purpose of the Study:

• To evaluate changes in condylar position after mandibular reconstruction using the free fibula flap with condylar head preservation.
• To assess the anteroposterior condylar position using computed tomography (CT).

Main Methods:

• Retrospective study of 16 patients (32 TMJs).
• CT data collected pre-surgery (T0), early post-surgery (T1), and late follow-up (T2).
• Anteroposterior condylar position analyzed using Pullinger and Hollender method; repeated-measures ANOVA used.

Main Results:

• Condylar position significantly changed over time post-reconstruction.
• Ipsilateral condyles showed anteroinferior displacement from T0 to T1.
• Ipsilateral condyles tended towards anterosuperior repositioning from T1 to T2; contralateral condyles showed minimal changes.

Conclusions:

• Condylar position undergoes notable changes following mandibular reconstruction with condylar preservation.
• Further research is needed to correlate condylar position changes with temporomandibular joint function.