Analysis of correlation between the shape of mandibular condylar head and occurrence of sagittal fracture of the condyle

doi:10.19438/j.cjoms.2023.01.010

Abstract

Abstract: PURPOSE: To analyze the correlation between the shape of the condyle and the occurrence of unilateral sagittal fracture of the mandibular condyle (SFMC). METHODS: A total of 155 patients with unilateral SFMC treated in the Third Hospital of Hebei Medical University from December 2010 to December 2021 were selected. The spiral CT data of the patients were anlysed using RadiAnt DICOM Viewer software in DICOM format. According to the Yale's classification criteria, the condylar head shape was categorized into 4 types as flat, convex, angle and round. According to Hlawitschka's classification, the sagittal condyle fractures was divided into 3 types as A, B and M. The relationship between condylar morphology and the incidence of unilateral sagittal condylar fractures was analyzed. SPSS 26.0 software package was used for statistical analysis. RESULTS: Among the 155 patients, the proportion of condyle shape on the contralateral side was flat (41.9%), convex (37.4%), round(11.6%) and angle(9.0%). The proportion of condyle sagittal fracture classification was type A (20.6%), type B(42.6%) and type M (36.8%). There was correlation between condylar morphology and the incidence of sagittal condylar fracture(P=0.015). The flat-shaped condyle was more prone to SFMC than the other three types of condyle. Angular condyle was less prone to SFMC than the other three types of condyle. CONCLUSIONS: The different condyle shape will affect the occurrence of sagittal condyle fracture, flat condyle was more prone to sagittal fracture, while the angular condyle was less prone to sagittal fractures.

Key words: Mandibular condyle, Sagittal fracture of mandibular condyle, Condylar shape, Spiral CT

CLC Number:

R782.4

WANG Tao-xian, CHENG Li-jun, WEI Ze-quan, PAN Xiang-feng, ZHAO Min-chao. Analysis of correlation between the shape of mandibular condylar head and occurrence of sagittal fracture of the condyle[J]. China Journal of Oral and Maxillofacial Surgery, 2023, 21(1): 59-63.

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