Image-based diagnosis of condylar head fractures of the mandible: four case studies

Kawai, Taisuke; Shibata, Atsuhiro; Kumazawa, Yasuo; Suzuki, Munekazu; Yagishita, Hideo; Miyata, Yusuke; Yamada, Marie; Kaneko, Noriko; Adachi, Masatoshi; Yosue, Takashi

doi:10.1007/s11282-005-0035-2

Cited by 3 publications

(2 citation statements)

References 16 publications

(22 reference statements)

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“…The condylar region is often involved in mandibular and maxillofacial fractures that may result in severe changes of the TMJ, and furthermore, they can affect the functions of this joint (Fortunato et al ., ; Huelke et al ., ; Huelke & Patrick, ; Kawai et al ., ; Oji, ; Wang et al ., ). Of the mandibular fractures, the condylar type occurs most frequently because of the slenderness of the condylar neck.…”

Section: Introductionmentioning

confidence: 99%

Mandibular Fracture and Dislocation in a Case Study from the Jewish Cemetery of Lucena (CÓRDOBA), in South Iberian Peninsula (8th–12th ad)

Luca

Viciano

Irurita

et al. 2011

Intl J of Osteoarchaeology

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The skeletal remains of an adult female have been exhumed in an 11th century tomb in the mediaeval Jewish cemetery of Ronda Sur, in the city of Lucena (Córdoba, Spain). Examination of the skull and mandible revealed evidences of bilateral condylar fracture and dislocation. Lesions were observed macroscopically and radiology was used as a complementary method of scrutiny, especially in cases of unclear observation. Irregular morphology of the condyles and coronoid processes, shallow glenoid fossa, altered and abnormal joint surfaces anterior to the glenoid fossa, and reduced height of both ascending rami were observed. Antemortem tooth loss, slight wear of occlusal surface and asymmetrical occlusal deposit of dental calculus were found. Radiologically, degenerative changes in the condyles and reparative bone in both coronoid processes have been identified. Dislocation of the condyles and lack of adequate treatment probably led to disruption of masticatory patterns and related structures, such as muscle attachments, articular disc and ligaments. Bilateral remodelled fracture and the altered appearance of the joint structures could probably mean that the individual survived the injury by several years. This type of fracture could be the consequence of direct blow to the mental or submental region that was transmitted in a direction that raised the mandible, causing the condylar head to collide directly with the mandibular fossa. Very few mandibular fractures in ancient skulls have been described in Spain, and this case is the first example found in a Spanish archaeological skeletal assemblage.

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Section: Introductionmentioning

confidence: 99%

Mandibular Fracture and Dislocation in a Case Study from the Jewish Cemetery of Lucena (CÓRDOBA), in South Iberian Peninsula (8th–12th ad)

Luca

Viciano

Irurita

et al. 2011

Intl J of Osteoarchaeology

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“…Notably, panoramic radiographs have demonstrated that bone density in the dental and molar regions of the human mandible is higher in males than in females 11−12, 30, 32, 36−38) . Therefore, the structure of cortical bone is one of the most important factors contributing to mandibular fracture 20) . Despite these findings regarding other regions of the mandible, the thickness of the cortical bone in the head and neck of the mandible has not been determined using cone-beam computed tomography (CBCT).…”

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confidence: 99%

Immunohistochemical and CBCT-based examination of differences between deformed and normal human condylar processes

Kaneko

Asaumi

Adachi

2010

Okajimas Folia Anat. Jpn.

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Summary:The condylar process is the most common site of mandibular fracture; however, the biomechanics of this site are not well understood. Vascular endothelial growth factor (VEGF) is a marker for vasculogenesis and the formation of bone. Alkaline phosphatase (ALP) is also a biochemical marker of bone formation. To better understand the biomechanics of the condylar process, we examined the structure of the heads and necks of human mandibles from 35 male cadavers aged 25 to 90 years (mean, 61.5 years) using cone-beam computed tomography (CBCT). In addition, we used immunohistochemistry to assess the expression of the vascular markers VEGF and CD31 as well as the bone formation marker ALP. Significant differences were observed in the thickness of the posterolateral region of the cortical bone in the head of the mandible (p < 0.05) as well as in the medial (p < 0.001) and posterior (p < 0.01) regions of the neck of the mandible. VEGF accumulated more in deformed heads than in heads with oval-shaped structures. ALP was found in numerous small cavities of cortical bone in oval-shaped heads. These differences may be related to dislocation caused by muscle tension or the occlusion of temporomandibular joint movement.

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Cone-beam computed tomography for the diagnosis of mandibular condylar fractures: 11 case reports

et al. 2012

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Image-based diagnosis of condylar head fractures of the mandible: four case studies

Abstract: This paper reports the four cases of the condylar head fractures of the mandible. The diagnostic images with panoramic radiograph and CT are presented. From 4 cases of condylar head fractures, the incidence, causes, and mechanisms are also discussed together with previous report.

Cited by 3 publications

References 16 publications

Mandibular Fracture and Dislocation in a Case Study from the Jewish Cemetery of Lucena (CÓRDOBA), in South Iberian Peninsula (8th–12th ad)

Mandibular Fracture and Dislocation in a Case Study from the Jewish Cemetery of Lucena (CÓRDOBA), in South Iberian Peninsula (8th–12th ad)

Immunohistochemical and CBCT-based examination of differences between deformed and normal human condylar processes

Cone-beam computed tomography for the diagnosis of mandibular condylar fractures: 11 case reports

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