The stylohyoid chain: CT imaging

Ramadan, Selma Uysal; Gökharman, Dilek; Koşar, Pınar Nercis; Kaçar, Mahmut; Koşar, Uğur

doi:10.1016/j.ejrad.2010.04.021

Cited by 20 publications

(21 citation statements)

References 17 publications

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“…In the previous studies with 3D-CT, the normal range of the length of SHC was reported as 20-40 mm and 21-30 mm (11, 12). In the present study, the normal range was found as 19-28 mm and the mean length was 22.25 mm.…”

Section: Discussionmentioning

confidence: 95%

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Assessment of the Stylohyoid Complex with Cone Beam Computed Tomography

İlgüy

Fişekçioğlu

et al. 2012

Iran J Radiol

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BackgroundOrientation of the stylohyoid complex (SHC) may be important for evaluation of the patient with orofacial pain or dysphagia.ObjectivesOur purpose was to assess the length and angulations of SHC using cone beam computed tomography (CBCT).Patients and MethodsIn this study, 3D images provided by CBCT of 69 patients (36 females, 33 males, age range 15-77 years) were retrospectively evaluated. All CBCT images were performed because of other indications. None of the patients had symptoms of ossified SHC. The length and the thickness of SHC ossification, the anteroposterior angle (APA) and the mediolateral angle (MLA) were measured by maxillofacial radiologists on the anteroposterior, right lateral and left lateral views of CBCT. Student’s t test, Pearson's correlation and Chi-square test tests were used for statistical analysis.ResultsAccording to the results, the mean length of SHC was 25.3 ± 11.3 mm and the mean thickness of SHC was 4.8 ± 1.8 mm in the study group. The mean APA value of SHCs was 25.6° ± 5.4° and the mean MLA value was 66.4° ± 6.7°. A positive correlation coefficient was found between age and APA (r = 0.335; P < 0.01); between thickness and APA (r = 0.448; P < 0.01) and also between length and thickness was found (r=0.236).ConclusionThe size and morphology of the SHC can be easily assessed by 3D views provided by CBCT. In CBCT evaluation of the head and neck region, the radiologist should consider SHC according to these variations, which may have clinical importance.

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Section: Discussionmentioning

confidence: 95%

“…In the present study, this range was found as 63°-69°. Decreased angles may cause close contact between the SHC and the internal carotid artery, while increased angles may cause a compression on the external carotid artery (12). …”

Section: Discussionmentioning

confidence: 99%

Assessment of the Stylohyoid Complex with Cone Beam Computed Tomography

İlgüy

Fişekçioğlu

et al. 2012

Iran J Radiol

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“…[7] The SP fracture has also been reported to occur secondary to the fracture of the mandible. A hypothesis has been put forth which states that a SP fracture occurs in association with a mandible fracture when the direction of force is from one side and contact occurs between the cranial end of the fractured ramus and the SP.…”

Section: Discussionmentioning

confidence: 99%

“…While, segmentation is diagnosed by visualization of the usually smooth bony cortex at both ends. [7] However, if the patient presents immediately after the injury, the associated facial injury may divert the attention of the physician resulting in delayed diagnosis and treatment of the underlying SP fracture. In this clinical report, left SP showed evidence of fracture in the proximal part [Figure 2a], while on right side SP showed pseudosegmentation [Figure 2b].…”

Section: Discussionmentioning

confidence: 99%

Fracture of the styloid process associated with the mandible fracture

2013

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Fracture of the styloid process (SP) of temporal bone is an uncommon injuries. Fracture of the SP can be associated with the facial injuries including mandible fracture. However, injury to the SP may be concealed and missed diagnosis may lead to the improper or various unnecessary treatments. A rare case of SP fracture associated with the ipsilateral mandibular fracture and also the diagnostic and management considerations of the SP fracture are discussed.

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“…This is a possible explanation as to why there are diff erence in measurements obtained between OPG and CBCT. Furthermore, a research done by Ramadan et al, (2007) 14) shows that although OPG has the ability to determine the variations of SP, they are unable to show the orientation and dimensions of this bone. In Figure 1, Figure 2 and Figure 3 showing measurement of right and left SP in OPG and CBCT.…”

Section: Discussionmentioning

confidence: 99%

Comparison Between 2D and 3D Measurement of Styloid Process Length

Rahman

Hamizan

Takeuchi

et al. 2018

J. Hard Tissue Biology.

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The styloid process (SP) is a bony projection, located just anterior to the stylomastoid foramen. This study was to compare between orthopantomogram (OPG) and cone beam computed tomography (CBCT) measurement of styloid process (SP) length and determine whether it is necessary to perform CBCT for accurate measurement of SP. A total of 21 subjects (13 Female and 8 Male) were included in this study. The mean age of the patient was 24.48 7 years. All patients came for dental treatment in Hospital Universiti Sains Malaysia (HUSM) and indicated for OPG. The length of the SP was measured as the distance from the point where the SP left the tympanic plate to the tip of the process using Planmeca Romexis software. Mean length of SP as measured on OPG is 23.70 1.46 mm on the right side and 24.09±1.54 on the left side and on CBCT is 27.60 ±1.52mm and 27.91±1.58mm on the right and left side respectively. No disparities between the measurements of SP using OPG and CBCT as well as between right and left side were observed. OPG provides reliable measurement and can still be used to measure this anatomical structure. CBCT is a valuable diagnostic imaging tool which makes accurate length measurements of SP presents with complex anatomy such as tortuous, angulation and segmentation.

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The stylohyoid chain: CT imaging

Cited by 20 publications

References 17 publications

Assessment of the Stylohyoid Complex with Cone Beam Computed Tomography

Assessment of the Stylohyoid Complex with Cone Beam Computed Tomography

Fracture of the styloid process associated with the mandible fracture

Comparison Between 2D and 3D Measurement of Styloid Process Length

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