Mean Length Of Styloid Process Research Articles

An evaluation of the prevalence of elongated styloid process in Taiwanese population using digital panoramic radiographs

Background/purposeStyloid process (SP) was an anatomical structure located in front of the stylomastoid foramen and the occurrence of styloid process elongation was uncertainly reported. The purpose of this study was to survey, using digital panoramic radiography, the lengths of styloid process (SP) and the prevalence of elongated SP in the Taiwanese population. Their relationships with age, gender and laterality were also determined. Materials and methodsA total of 539 patients (including 53 that were referred from the Department of Otorhinolarygngology with clinical symptoms) were studies retrospectively. Panoramic radiographic examinations were performed on all these patients at the Outpatient clinics of the Department of Stomatology, Taichung Veterans General Hospital between January 2019 and December 2019. Patients were divided into groups according to their age and gender. The length of SP from the base of temporal bone junction to the tip of the process was measured using the Sirona software. Data were analyzed using SPSS version 22.0 based on tests of Chi-square, Mann–Whitney U and Kruskal Wallis tests. Statistical significance was set at p < 0.05. ResultsA total of 539 (240 males and 299 females) digital panoramic radiographs were measured and evaluated in this study. The mean length of SP was 30 ± 0.7 mm on the right side and 29 ± 0.7 mm on the left side. The average length of SP on both sides was 29.5 ± 0.7 mm. In those cases with symptomatic Eagle syndrome, the mean length of SP was 32 ± 0.8 mm on the right side and 33 ± 0.8 mm on the left side (average 32.5 ± 0.8 mm). These lengths were statistically different between the general population and the symptomatic patients. Furthermore, the mean length of SP was 29 ± 0.7 mm in females and 30 ± 0.7 mm in males. The length of the SP grew progressively with age, and was more clearly seen within subjects from 41 to >60 years of age (p < 0.005). Meanwhile, the prevalence of elongated SP in our study was 41.5% on the right side and 36.2% on the left side, with female predominance. ConclusionThe mean length of SP was 30 ± 0.7 mm (right side) and 29 ± 0.7 mm (left side). The prevalence of elongated SP was 41.5% on the right side, and 36.2% on the left side. Our findings were consistent with some previous studies that were differences related with age, and were more prominent in those patients with symptoms.

A 3D Cone-Beam Computed Tomographic Assessment of Styloid Process Length and Patterns of Segments Ossification

Background: To determine the radiographic assessment of the styloid proces using 3D images provided bycone beam computed tomography (CBCT).Materials and Method: In this study, (50) CBCT scans of the (25) patients 13 females, 12 males, age range(18-65 years) were retrospectively evaluated for full length and number of segments ossificationanalyzedstatically for both side and gender.Results:The study results revealed that the mean length of styloid process according to gender was (18.7)mm in male and (20.4) mm in females, while according to side the mean length of styloid process on theright side was (19.7) mm and on the left side was (19.4) mm. The higher percentage of segments ossificationwas in one segment then followed by two and three segments respectively in both left and right sidesConclusion: The full length and morphology of the styloid process can be measured accurately by 3D viewsprovided by CBCT

Morphometric Study of Distal End of Human Dry Radii

Introduction: Radius is the lateral bone of forearm. Important parameters of its distal end include angle of radial inclination, palmar tilt, and length of radial styloid process. Morphometry of the distal end of radius is important in various clinical orthopaedic procedures such as reduction of distal radius fractures, design of distal radius prosthesis, and kinematics of the wrist joint. The aim of this study is to determine the angle of radial inclination, palmar tilt, length of styloid process, oblique width, transverse and anteroposterior diameter of distal end of human dry radii in Nepalese population.&#x0D; Methods: This is a descriptive cross-sectional study conducted in the dissection hall of Department of Human Anatomy, Nepalese Army Institute of Health Sciences, Sanobhyrang, Kathmandu, Nepal from October 2019 to November 2019 after obtaining ethical approval. Total 76 human dry radii were included in the study by convenience sampling method. Angle of radial inclination, palmar tilt, length of styloid process, oblique width, transverse and anteroposterior diameter of distal end of human dry radii were studied. Data was collected and analysed by SPSS version 24.&#x0D; Results: Mean length of styloid process was 1.09 cm. Mean anteroposterior and transverse diameter of distal end of radius was 1.88 cm and 2.85 cm respectively. Mean oblique width of distal radius was 2.82 cm. The mean palmar tilt and angle of inclination of radius were 9.72 and 23.62 degree respectively. &#x0D; Conclusions: This study provides the reference data for the anatomical alignment while treating the injuries of the distal end of radius in Nepalese population.

Cone-Beam Computed Tomographic Evaluation of Styloid Process in Patients With Temporomandibular Disorders and Asymptomatic Individuals.

Elongated styloid processes (ESP) may show clinical symptoms that are readily confused with symptoms associated with temporomandibular disorders (TMDs). The purpose of study was to compare the prevalance and characteristics of ESP in patients with TMD and asymptomatic individuals are examined by cone beam computed tomography. Angulations and length of the styloid process (SP) were evaluated in CBCT images of 100 patients with TMD symptoms and 100 control patients, retrospectively. Differences between the patient and control groups were assessed by analysis independent sample t test. Pearson correlation test was used to evaluate between length and angulation of SP relationship. The mean length of SP in the TMD group was 38.19 ± 8.6 mm for the right and 38.99 ± 8.1 mm for the right side. The mean length of SP in the control group was 36.80 ± 6.3 for the right side and 36.18 ± 6.5 mm for the left side. The mean anterior angulation of the SP in the TMD group was 22.08 ± 5.5 degree in the TMD group and 23.97 ± 4.1 degree in the control group. The mean medial angulation of the SP in the TMD group was 30.57 ± 4.9 degree and 29.89 ± 4.4 degree in the control group. There was no significant difference in length and angle between the groups (P > 0.05). No correlation was found in terms of length and angulations of SP between TMD and control groups.

Elongation of the styloid processes in kidney-transplanted patients: The role of ectopic calcification as possible cause of Eagle syndrome

ABSTRACT Objective: To investigate the relationship between the presence of ectopic calcification in the elongation of the styloid process (SP) and its possible clinical manifestation (Eagle syndrome) in a population of kidney-transplant patients previously treated with hemodialysis. Methods: Digital orthopantomography of 92 kidney-transplanted patients and 68 control subjects were analyzed to measure the length of SPs. Calcium, phosphate, alkaline phosphatase, and parathyroid hormone (PTH) blood levels were also available for comparison. Results: The mean length of SPs was significantly different between groups, as were phosphate and PTH values. Discussion: Renal transplant patients who have been treated with hemodialysis present elongated SPs, presumably due to alterations in phosphate balance and PTH levels. Thus, in cases of orofacial pain in patients with a history of altered bone metabolism, particularly when due to renal insufficiency, Eagle syndrome should be suspected as the main cause of symptoms.

A morphological and morphometric study of distal end of ulna with its clinical implications

Background and Aim: The distal end of the ulna is of utmost anatomical importance for normal hand functioning. It can get damaged in various injuries such as avulsion of the ulnar styloid process or ulnar styloid triquetral impaction syndrome. Hence, the aim of this study is to measure the various dimensions of distal end of ulna and to look for its various morphological features. Materials and Methods: The study was conducted on fifty dry ulnae of unknown sex. Length ofstyloid process, width of fovea, and pole and height ofseat were measured. Various morphological features of the distal end of ulna were also noted down. Results: The mean length of styloid process, width of fovea, and pole were 0.55, 0.47, and 0.56 cm, respectively. The mean height of seat was 0.72 cm. In 59.57% of cases, the styloid process was straight and in 78.7% of cases, the tip of the styloid process was blunt. The most common shape of pole was kidney shape in 48% of cases. Conclusion: The results of this study will be useful for hand surgeons in dealing with distal ulnar injuries and even for reconstruction of the distal radioulnar joint with prosthesis of distal end of ulna.

Radiological Evaluation of the Styloid Process Length Using 64-row Multidetector Computed Tomography Scan.

Background:As elongated styloid process is one of the causes of recurrent oropharyngeal pain and carotid nerve plexus compression called Eagle's syndrome and this length is not similar in different communities, the aim of the current study is to determine average length of styloid process by paranasal multidetector computed tomography.Materials and Methods:This is a retrospective cross-sectional study about 393 patients who underwent paranasal MDCT scan for trauma in Radiology Department without pathologic finding. Styloid length from temporal bone junction to tip of the process was measured using Workstation software. Demographic data including age, sex, and height were gathered from the patients' records, and patients were questioned about symptoms of Eagle's syndrome before trauma. Data were analyzed using SPSS version 20 with the methods of t-test, Chi-square, and ANOVA. P < 0.05 was considered statistically significant.Results:Two-hundred and sixteen males and 177 females underwent MDCT. The length of right, left, and mean length of both sides were 25.4 ± 7.3, 25.2 ± 7.8, 25.3 ± 7.1, respectively. The mean length of both sides' process was more among male that was statistically significant (P = 0.025 and 0.043, respectively). Right and left side styloid process' higher length was in correlation with patient's height (P = 0.002, r = 0.153, P = 0.029, r = 0.110, respectively) and number of symptoms (P < 0.001, r = 0.300, P < 0.001, r = 0.334, respectively).Conclusion:The mean length of styloid process was 25.3 ± 7.1 that was in accordance with some studies and different from others. Styloid process length is higher in males. The length of styloid process is in association with height and number of symptoms as well.

A morphological and morphometric study of proximal and distal ends of dry radii with its clinical implications.

Knowledge of the size and shape of radial head is essential for construction of radial head prosthesis. Further, the measurements of bicipital tuberosity and its angular relationship to radial head are significant in surgical techniques, like in the reconstruction of biceps tendon. Even the morphometry of the distal radius is significant in numerous clinical orthopedic situations such as reduction of distal radius fractures and in the design of distal radius prosthesis. So, the aim of the study was to determine the morphometric parameters of proximal and distal radius in dry adult Indian radius. Fifty intact adult Indian radius (right = 23, left = 27) were chosen, and the various parameters of proximal and distal ends of radius were studied. Student's t-test was done to correlate all these parameters on the right and left sides. The mean length of radius, height of head at medial and lateral ends, head anteroposterior and transverse diameter, head thickness at ventral, dorsal, and lateral ends were 23.5, 0.90, 0.75, 1.91, 1.85, 0.42, 0.32, and 0.30 cm, respectively. The mean depth of articular facet, length of neck, proximal and distal neck diameter, width and length of bicipital tuberosity, and radial circumference at bicipital tuberosity were 0.19, 1.19, 1.36, 1.31, 1.23, 1.97, and 4.54 cm, respectively. The mean length of styloid process, oblique and transverse width of lower end, anteroposterior diameter of lower end, and angle of radial inclination were 0.98cm, 2. 81cm, 2.59cm, 1.86cm, and 25.05°, respectively. This study will be useful for orthopedic surgeons in making prosthesis for the proximal and distal ends of radius.