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1.
BMC Oral Health ; 23(1): 53, 2023 Jan 30.
Artigo em Inglês | MEDLINE | ID: mdl-36717838

RESUMO

BACKGROUND: The primary aim of this study was to evaluate the dentoalveolar, skeletal, pharyngeal airway, cervical posture, hyoid bone position, and soft palate effects of the Myobrace and Twin-block appliances. The second was to compare them in terms of ease of use by assessing the factors that may influence patient compliance. METHODS: The study included thirty-six Class II division 1 patients (19 females, 17 males; mean age, 12.14 ± 1.23) who had previously been treated in the Orthodontic Clinic at Sivas Cumhuriyet University Faculty of Dentistry. The patients were divided into two groups: Group 1: Myobrace (n = 18), and Group 2: twin block (n = 18). The effects of the appliances on the skeletal, dentoalveolar, soft tissue, craniocervical, and other anatomic structures were assessed using 46 measurements (22 linear and 24 angular), on pre and post-treatment cephalometric radiographs. AudaxCeph 5.0 software (Ljubljana, Slovenia) was used for the analysis. To analyze the changes after one year of treatment, a paired sample t-test and Wilcoxon signed-rank test were used. Intergroup comparison was performed using the Student t-test and the Mann-Whitney U test. RESULTS: In the Myobrace and Twin-block groups, there was a significant increase in SNB (°) (p = 0.004, p = 0.001), IMPA (°) (p = 0.005, p = 0.001) and a significant drop in U1/SN (°) (p = 0.021, p = 0.005). The lengths of Cd-Gn (mm), Go-Pg (mm), and Cd-Go (mm) increased significantly in the Twin-block group (p = 0.003, p = 0.010, p = 0.001), whereas the Myobrace group did not change. Similarly, there was no significant difference in pharyngeal and soft palate measurements in the Myobrace group but a statistically significant decrease in SP length and angle in the Twin-block group (p = 0.001, p = 0.006). Increases in SN/OPT (°) (p = 0.032, p = 0.001) and SN/CVT (°) (p = 0.012, p = 0.001) were statistically significant in both groups. Myobrace was more difficult to use while sleeping, whereas the twin block caused more nausea. CONCLUSIONS: Both appliances can be used for mandibular advancement. The Twin-block appliance, on the other hand, was more effective and patient-friendly.


Assuntos
Osso Hioide , Má Oclusão Classe II de Angle , Masculino , Feminino , Humanos , Criança , Adolescente , Estudos Retrospectivos , Mandíbula , Cádmio , Má Oclusão Classe II de Angle/terapia , Palato Mole , Postura , Cefalometria
2.
Artigo em Chinês | MEDLINE | ID: mdl-36597370

RESUMO

Objective:To provide reference for preoperative diagnosis and treatment of thyroglossal duct cyst by studying the morphological changes of hyoid body. Methods:The CT data(midsagittal image) of congenital thyroglossal duct cyst(TGDC group) diagnosed by pathology and the control group(C group) were collected from January 2016 to October 2021. The differences of hyoid body height(HBH), hyoid body width(HBW), hyoid bone thickness(HBT), HBW/HBH, HBT/HBH between the two groups were compared. HBH, HBW and HBT were analyzed by t-test; The HBW/HBH and HBT/HBH were analyzed by Mann-Whitney U test. Results:Twenty-nine cases were included in the TGDC group and 58 in the C group. The HBH in the TGDC group was(8.93 ±0.22) mm and that in the C group was(8.94±0.12) mm, there was no significant difference between the two groups(P>0.05). The HBW in the TGDC group and the C group were(5.09±0.21) mm and(4.48±0.11) mm, and the HBT were(3.84±0.12) mm and(3.13±0.08) mm, respectively, the difference between the two groups was statistically significant(P<0.05). The average rank sum of HBW/HBH in the TGDC group and the C group was 53.95 and 39.03, respectively, and the average rank sum of HBT/HBH was 59.90 and 36.05, respectively, the difference between the two groups was statistically significant(P<0.05). Conclusion:The morphological changes of hyoid body of thyroglossal duct cyst may be helpful for preoperative diagnosis, and it also suggests that hyoid body resection may reduce the possibility of postoperative recurrence.


Assuntos
Cisto Tireoglosso , Humanos , Cisto Tireoglosso/diagnóstico por imagem , Cisto Tireoglosso/patologia , Cisto Tireoglosso/cirurgia , Osso Hioide/diagnóstico por imagem , Diagnóstico por Imagem
3.
BMC Oral Health ; 22(1): 532, 2022 11 24.
Artigo em Inglês | MEDLINE | ID: mdl-36424588

RESUMO

BACKGROUND: At present, there are still controversies about the influence of orthodontic treatment on the size of upper airway and the position of hyoid bone. We investigated the effect of orthodontic vertical control therapy on the size of the upper airway and position of the tongue and hyoid bone in adult patients with hyperdivergent skeletal Class II. METHODS: Overall, 15 adults with hyperdivergent skeletal Class II and normal occlusion, respectively, were selected as the experimental and control groups. The angle and line of the craniofacial structure, upper airway, hyoid bone position and three-dimensional (3D) upper airway indexes were measured using the Uceph 4.2.1 standard version and Mimics 21.0 software, respectively. The paired t-test, Wilcoxon symbol rank test, t-test of two independent samples, two independent sample nonparametric tests, Mann-Whitney U test, Pearson correlation analysis, the Univariate linear regression analysis and Multiple linear regression analysis were performed. RESULTS: After treatment, the S-Go/N-Me (%) and the MP-SN and XiPm-SN angles were significantly different (P < 0.01). The U-MPW and PAS significantly increased (P < 0.05), sagittal diameter L2 increased significantly, and transverse diameter L2 decreased significantly (P < 0.01). Although no significant correlation was observed between the vertical change in the jaw and that in U-MPW and PAS, the sagittal diameter L2 showed a significant correlation (P < 0.05). The Multiple linear regression analysis showed that there was a significant negative correlation between the variables MP-SN and sagittal diameter L2 and positive correlation between S-Go/N-Me(%) and H-MP (P < 0.05). Furthermore, significant differences between the Hv (P < 0.01) and sagittal diameter L1(P < 0.05) were observed before and after treatment. CONCLUSIONS: After the orthodontic vertical control therapy in patients with hyperdivergent skeletal Class II, the upper airway only underwent adaptive changes during treatment without substantial size changes, the position of tongue body and hyoid bone did not change significantly. Furthermore, compared with normal occlusion, the velopharyngeal segment airway of patients with hyperdivergent skeletal Class II remains narrow and long after treatment.


Assuntos
Osso Hioide , Língua , Adulto , Humanos , Cefalometria
7.
Medicina (Kaunas) ; 58(9)2022 Sep 03.
Artigo em Inglês | MEDLINE | ID: mdl-36143890

RESUMO

Background and Objectives: To determine whether there are changes in the cephalometric characteristics of the upper airways and hyoid bone, in patients diagnosed with obstructive sleep apnea syndrome (OSAS) compared to a healthy control group. Material and Methods: This retrospective case-control study included 24 patients diagnosed with OSAS (apnea-hypopnea index (AHI) > 5 obtained after polysomnography) and 24 healthy subjects as a control group that completed the STOP-Bang questionnaire to determine whether they had OSAS. Lateral cephalometric examinations were recommended for all these patients. The software used for the cephalogram interpretation was CS 3D Imaging and CS Airway imaging from Carestream Dental. Results: The subjects with OSAS had a smaller superior posterior airway space (SPAS), with an average of 10.32 mm compared to a 12.20 mm mean in the control group (p = 0.03). Patients with OSAS, had a lowered middle airway space (MAS) with a mean of 7.96 mm in the OSAS group and a 10.96 mm mean in the control group (p = 0.00). All the measurements made for the hyoid bone, such as-H-MnP, H-C3, and H-B-showed increased values (means of 26.31 mm, 39.08 mm, 60.05 mm, respectively), for the OSAS group (p = 0.00). Conclusions: Patients suffering from OSAS had reduced dimensions of the SPAS and MAS values. The hyoid bone had a more inferior position in the study group (with increased values for H-MnP, H-C3, and H-B) compared to the control group.


Assuntos
Osso Hioide , Apneia Obstrutiva do Sono , Estudos de Casos e Controles , Cefalometria/métodos , Humanos , Osso Hioide/diagnóstico por imagem , Estudos Retrospectivos , Apneia Obstrutiva do Sono/diagnóstico por imagem
8.
BMC Pulm Med ; 22(1): 349, 2022 Sep 16.
Artigo em Inglês | MEDLINE | ID: mdl-36114522

RESUMO

BACKGROUND: The objective of this study was to evaluate the relationship between hyoid bone position and severity of obstructive sleep apnea (OSA), and to investigate its value as a complementary diagnostic method. METHODS: A total of 133 patients who were diagnosed as OSA with an apnea-hypopnea index ≥ 5 were included. Clinical examination, level I polysomnography (PSG) and lateral cephalographic analysis were done. Comprehensive PSG characteristics were compared according to hyoid bone position and the predictive power of the distance between the mandible and hyoid was assessed. RESULTS: The distance between the hyoid bone and mandibular plane was significantly longer in the severe OSA group (p = 0.013). The distance from hyoid bone to third vertebrae (C3) and hyoid bone to mentum were also longer in the severe OSA group but the difference did not reach statistical significance. The distance between hyoid bone and mandibular plane was effective in predicting severe OSA, with a cut-off value of 19.45 mm (AUC = 0.623, p = 0.040). When grouped according to a distance cut-off value of 19.45 mm, those with a longer distance between the hyoid bone and mandibular plane showed more respiratory disturbance, lower oxygen saturation levels, less deep slow wave sleep, and more fragmented sleep with arousals. CONCLUSIONS: The distance between the hyoid bone and mandibular plane derived from cephalometric analysis can be a valuable diagnostic parameter that can be easily applied in differentiating severe OSA patients.


Assuntos
Osso Hioide , Apneia Obstrutiva do Sono , Cefalometria/métodos , Humanos , Osso Hioide/diagnóstico por imagem , Polissonografia , Radiografia , Apneia Obstrutiva do Sono/diagnóstico por imagem
9.
Artigo em Inglês | MEDLINE | ID: mdl-36078792

RESUMO

The temporomandibular joint disorder (TMD) is a syndrome that affects the masticatory muscles and temporomandibular joint (TMJ). Its pathophysiology is not yet fully known. Cephalometric analysis is used for routine evaluation regarding orthodontic treatment and other purposes. The aim of this study was to assess if using cephalometric analysis and TMJ conservative therapy to evaluate the hyoid bone position and the cervical posture reduced symptoms in adults with TMDs compared to no intervention. The authors conducted a systematic review of the literature (PubMed, Cochrane, Web of Science, Scopus, and Embase) for clinical studies of TMDs with conservative treatment and lateral cephalometric analysis of the hyoid and cervical posture. To assess the risk of bias for non-randomized clinical trials ROBINS-I tool was used. Out of 137 studies found, 6 remained to be included. Most of them found a link between TMD and lateral cephalometric analysis, but there was a high risk of bias. This review found a possible link between TMDs, the neck and cervical posture. There is a benefit reported regarding the use of the lateral cephalometry as a treatment, but more extensive prospective randomized clinical trials are necessary to be able to draw definitive conclusions.


Assuntos
Osso Hioide , Transtornos da Articulação Temporomandibular , Adulto , Cefalometria , Humanos , Osso Hioide/diagnóstico por imagem , Postura/fisiologia , Estudos Prospectivos , Transtornos da Articulação Temporomandibular/diagnóstico por imagem
10.
Head Face Med ; 18(1): 31, 2022 Sep 05.
Artigo em Inglês | MEDLINE | ID: mdl-36064714

RESUMO

BACKGROUND: Previous studies have reported inconsistent effects of premolar extraction on the oropharynx and hyoid bones. Currently, no strong evidence is available regarding the effect of extraction on upper airway size. Hence, the aim of this study was to analyse the effects of first premolar extraction on the oropharynx and hyoid bone positions in female adult patients, and further explored differences in oropharynx and hyoid bone changes among skeletal patterns. METHODS: The study population included 40 female adult patients who did not undergo extraction and 120 female adult patients who underwent extraction of four premolars; the including patients had four distinct sagittal and vertical skeletal patterns. Cone-beam computed tomography was performed before (T0) and after (T1) orthodontic treatment. Eight oropharynx variables and five hyoid bone variables were measured using Dolphin 3D Imaging software. Paired and independent t-tests were used to analyse measurements between timepoints and groups, respectively. RESULTS: The oropharynx volume increased significantly in the extraction group; changes did not differ significantly between extraction and non-extraction groups. Oropharynx variables did not differ significantly at T0 among the four skeletal pattern groups. After orthodontic extraction treatment, the oropharynx volume increased significantly in the class I-norm and class I-hyper subgroups, but not in the class II-norm and class II-hyper subgroups. Significant increases were observed in the oropharynx volume and most constricted axial area from T0 to T1 in the moderate retraction group, but not in the maximum retraction group. Extraction patients exhibited significant posterior movement of the hyoid, particularly among maximum retraction patients. CONCLUSIONS: In female adult patients, first premolar extraction tends to increase the oropharynx size and cause posterior movement of the hyoid bone, particularly in skeletal class I patients. For skeletal class II and hyperdivergent patients with a narrow oropharynx, first premolar extraction does not negatively influence oropharynx size or hyoid bone position. The differences of oropharyngeal changes between moderate retraction patients and maximum retraction patients were not significant.


Assuntos
Dente Pré-Molar , Osso e Ossos , Tomografia Computadorizada de Feixe Cônico , Osso Hioide , Orofaringe , Extração Dentária , Adulto , Dente Pré-Molar/diagnóstico por imagem , Dente Pré-Molar/cirurgia , Osso e Ossos/anatomia & histologia , Osso e Ossos/diagnóstico por imagem , Tomografia Computadorizada de Feixe Cônico/métodos , Feminino , Humanos , Osso Hioide/diagnóstico por imagem , Orofaringe/diagnóstico por imagem , Estudos Retrospectivos
11.
Int J Legal Med ; 136(6): 1865-1881, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35960370

RESUMO

Cases of suicidal hanging are a common death referred for medico-legal autopsy throughout the world. Although some advocate using postmortem computed tomography (PMCT) without traditional invasive autopsy (TIA) to investigate such deaths, others reject this approach. There is currently limited evidence to guide practice. In this context, the TIA reports and PMCT images of 50 cases of suspected suicidal hanging during an 11-month period were reviewed. The reviewers were blinded to the findings of the other modality. A Cohen's Kappa coefficient (K) was calculated to assess agreement between TIA and PMCT across a range of pertinent findings. This analysis demonstrated perfect agreement for identification of a ligature (K = 1.00) and a strong level of agreement for identification of a ligature suspension point (K = 0.832) but only a minimal level of agreement for overall ligature mark (K = 0.223). PMCT demonstrated a weak level of agreement for fractures of hyoid bone (K = 0.555) and thyroid cartilage (K = 0.538). Three probable fractures not identified at TIA were identified on PMCT. TIA was shown to be superior in the identification of intramuscular and laryngeal fracture-related haemorrhage/bruising whereas PMCT was superior to TIA in identifying body gas deposition. There was overall good correlation between the natural disease and trauma identified elsewhere in the body during the TIA and PMCT. The study demonstrates that PMCT can assist the investigation of suspected suicidal hangings. However, the accuracy of many findings is limited, and if it is used as an alternative to the TIA, potentially pertinent findings, such as fractures of the laryngeal cartilages, could be missed.


Assuntos
Fraturas Ósseas , Lesões do Pescoço , Autopsia/métodos , Patologia Legal , Hemorragia/diagnóstico por imagem , Humanos , Osso Hioide/diagnóstico por imagem , Osso Hioide/lesões , Lesões do Pescoço/diagnóstico por imagem , Ideação Suicida , Tomografia Computadorizada por Raios X
12.
Head Neck ; 44(11): 2640-2644, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-35855665

RESUMO

With the extension of remote-access head and neck surgery to improve postoperative cosmetic outcomes, a robotic or endoscopic procedure was developed to excise thyroglossal duct cysts (TGDCs). Here, we present the operative procedure of a novel transoral robot-assisted Sistrunk operation using oral vestibular and sublingual incisions in a 21-year-old woman with TGDC. A 1.5-cm central vestibular incision and two lateral vestibular incisions were made. In addition, a midline vertical sublingual incision was made to cut the hyoid bone via the sublingual route. The surgery was successfully completed without conversion to the conventional transcervical approach. Our technique using three vestibular incisions and a sublingual incision was more efficient in performing the Sistrunk operation than frenulotomy or endoscopic vestibular approaches. In conclusion, the transoral robotic Sistrunk operation using three vestibular incisions and a sublingual incision is feasible and safe and yields excellent postoperative cosmesis.


Assuntos
Procedimentos Cirúrgicos Robóticos , Robótica , Cisto Tireoglosso , Adulto , Endoscopia/métodos , Feminino , Humanos , Osso Hioide/cirurgia , Robótica/métodos , Cisto Tireoglosso/cirurgia , Adulto Jovem
13.
Int J Pediatr Otorhinolaryngol ; 160: 111227, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35797923

RESUMO

We reported the free hyoid bone reconstruction of the cricoid cartilage to treat LTS in children. This retrospective case series study included LTS children who underwent hyoid bone separation and T tube implantation. Thirty-four children were included. Twenty-five children were with good outcomes after free hyoid bone reconstruction of the cricoid cartilage. Specifically, the cure rate was 92.8% for the children with mixed stenosis, followed by 63.6% in children with glottis stenosis and 55.6% in children with subglottic stenosis. Free hyoid bone reconstruction of the cricoid cartilage for the management of LTS is feasible, with good outcomes and few complications.


Assuntos
Laringoestenose , Lesões do Pescoço , Estenose Traqueal , Criança , Constrição Patológica/complicações , Constrição Patológica/cirurgia , Cartilagem Cricoide/cirurgia , Humanos , Osso Hioide/cirurgia , Laringoestenose/etiologia , Laringoestenose/cirurgia , Lesões do Pescoço/complicações , Estudos Retrospectivos , Estenose Traqueal/complicações , Resultado do Tratamento
14.
Neuroimage Clin ; 35: 103104, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35792418

RESUMO

Patients with infratentorial stroke (IS) exhibit more severe dysphagia and a higher risk of aspiration than patients with supratentorial stroke. Nevertheless, a large proportion of patients with IS regain swallowing function within 6 months; however, the neural mechanism for this recovery remains unclear. We aimed to investigate possible neuroplastic changes involved using functional magnetic resonance imaging (fMRI) and their relation to swallowing function. We assessed 21 patients with IS (mean age: 59.9 ± 11.1 years) exhibiting dysphagia in the subacute phase and 21 healthy controls (mean age: 57.1 ± 7.8 years). Patient evaluations were based on the functional oral intake scale (FOIS), videofluoroscopic swallow study (VFSS), and fMRI. Temporal swallowing measures and the penetration-aspiration scale (PAS) were obtained using VFSS. Whole-brain-medulla resting-state functional connectivity (rsFC) was calculated and compared between patients and healthy controls. The rsFCs were also correlated with functional measures within the patient group. In patients with IS, whole-brain-medulla rsFCs were significantly higher in the precuneus, the left and right precentral gyrus, and the right supplementary motor area compared to those in healthy controls (P < 0.001, family-wise error-corrected cluster-level P < 0.05). The rsFCs to the medulla for the left (r = -0.507, P = 0.027) and right side (r = -0.503, P = 0.028) precentral gyrus were negatively correlated with the PAS. The rsFC between the left (r = 0.470, P = 0.042) and right (r = 0.459, P = 0.048) precentral gyrus to the medulla was positively correlated with upper esophageal sphincter opening durations (UOD). In addition, PAS was also correlated with UOD (r = -0.638, P = 0.003) whereas the laryngeal closure duration was correlated with the hyoid bone movement duration (r = 0.550, P = 0.015). Patients with IS exhibited overall modulation of cortical-medulla connectivity during the subacute phase. Patients with higher connectivities showed better swallowing performance. These findings support that there is cortical involvement in swallowing regulation after IS and can aid in determining potential treatment targets for dysphagia.


Assuntos
Transtornos de Deglutição , Acidente Vascular Cerebral , Idoso , Encéfalo , Deglutição/fisiologia , Transtornos de Deglutição/diagnóstico por imagem , Transtornos de Deglutição/etiologia , Humanos , Osso Hioide , Pessoa de Meia-Idade , Acidente Vascular Cerebral/complicações , Acidente Vascular Cerebral/diagnóstico por imagem
15.
BMC Oral Health ; 22(1): 228, 2022 06 09.
Artigo em Inglês | MEDLINE | ID: mdl-35681197

RESUMO

BACKGROUND: This retrospective study investigated the effect of breathing pattern, skeletal class (Class I, Class II), and age on the hyoid bone position (HBP) in normodivergent subjects. METHODS: A total of 126 subjects (61 males, 65 females) aged 7-9 years and 10-12 years were scanned using cone-beam computed tomography (CBCT). All participants were classified according to the anteroposterior skeletal pattern into (Class I, Class II). Each skeletal group was further divided according to the breathing mode into mouth breathers (MB) and nasal breathers (NB). The HBP was measured accordingly. Independent sample t-test and Mann Whitney U test were used to detect significant differences between the groups, and binary logistic regression was used to identify MB predictive indicators. RESULTS: The breathing mode and skeletal class affected the vertical HBP in subjects with 7-9 years, while they affected the anteroposterior HBP in subjects with 10-12 years. Regarding the age effect, hyoid bone was located more anteriorly in the older NB subjects, and hyoid bone was more inferiorly in the older age group. A regression equation of the significant variables was formulated, C3-Me (P: 001, OR: 2.27), and H-EB (P: 0.046, OR: 1.16) were positively correlated with occurrence of MB. CONCLUSION: There were significantly different HBPs among subjects with different anteroposterior skeletal classes, breathing modes, and age cohorts. Moreover, C3-Me, and H-EB were significant predictors and correlated with increased likelihood of being MB subject.


Assuntos
Osso Hioide , Respiração Bucal , Idoso , Cefalometria/métodos , Tomografia Computadorizada de Feixe Cônico/métodos , Feminino , Humanos , Osso Hioide/diagnóstico por imagem , Masculino , Mandíbula , Respiração Bucal/diagnóstico por imagem , Estudos Retrospectivos
16.
Leg Med (Tokyo) ; 58: 102093, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35671580

RESUMO

INTRODUCTION: Extensive literature exists concerning the etiology and morphology of fractures of the hyoid bone (h.b.) in cases of fatal strangulation. There is an agreement to the effect that fractures are mostly located within the distal third of the cornua majora (c.m.). Although several predictors have been described very accurately, the fracture analysis has neither been based on the osseous construction nor on the stress distribution of the c.m. under strangulation resulting from the configuration and its details. This especially applies to the apex of the distal ends of the big horns, the bulbi. The objective of the experimental break tests that were performed was to contribute to elucidating the biomechanics of the horizontal and vertical fractures and to fractures of the bulbi. MATERIALS AND METHODS: Break tests in the a.p. direction line were carried out on 28 unfixed h.b. of adults on a specially constructed test bench by continuously increasing the tension until a fracture/dislocation occurred. The test arrangement followed the constellation of typical-symmetrical hanging. The selection criteria were the symmetry of the h.b. and the gender. Before and after the experiments, a radiological depiction (DIMA system 20 kV, 10 sec; Institute for Diagnostic Radiology, University-Hospital Goettingen) was carried out, followed by a preparative depiction under magnifying glass control. The h.b. configuration was classified according to the following types: hyperbole-, parabola-, and horseshoe-type. Following this classification, the results were related to the findings achieved by the photo-elastic model experiments. By this, the results of the experimental fracture tests could be specifically compared to the tension distribution within the model. RESULTS: A total of 70 % of the experimentally-produced fractures were located within the distal third of the c.m. This matches with the frequency distribution in real typical symmetrical hanging. Following the radiological and preparative investigations that were carried out, the c.m. have to be viewed as tubular bones. The transition regions of different osseous strength/elasticity are thus to be considered as areas of increased vulnerability. For the distal third of the c.m., it is the level at which the dense spongiosa/compacta of the shaft part turn into wide-meshed spongiosa and tender compacta of the bulbi. Additionally, the bulbi themselves represent a locus of reduced strength in which the fractures were located basally and/or apically in the transition. It was not only in the whole c.m. that the direction in which the fragment was snapped off or fractured was not random, as all fractures were located on the broad side of the horn, following the applied force. CONCLUSIONS: The experimental fracture tests explained the known accumulation of fractures in the distal third of the c.m. in cases of hanging with the knot of the rope located against the neck. It could be demonstrated radiologically and preparatively that, anatomically, the big horn of the h.b. is a tubular bone. From this, a new approach to the forensic reconstruction of trauma can be derived. The transitional area from the shaft into the bulbus represents a locus minoris resistentiae. In case of pressing the h.b. towards the cervical spine under ventral application of force, one could expect a point load of the bulbi. Two different types of bulbus fractures showed that this load is diagnostically relevant. The fracture direction is also of diagnostic value. It depends on the angle that is formed by the c.m. with their broad side towards the horizontal. This angle may even change for about 90° for the c.m. in the course from proximal to distal movement. By adjustment of the alignment of the broad side with the stress distribution within the different types of the h.b., a mechanically justified answer can be given to the question of why a horizontal fracture appears in the one case and a vertical fracture in the other.


Assuntos
Fraturas Ósseas , Osso Hioide , Adulto , Asfixia , Fraturas Ósseas/diagnóstico por imagem , Humanos , Osso Hioide/diagnóstico por imagem , Radiografia
17.
PLoS One ; 17(6): e0270704, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35763508

RESUMO

Swallowing is a complex process that involves precise coordination among oral and pharyngeal structures, which is essential to smooth transition of bolus and adequate airway protection. Tongue base retraction and hyolaryngeal excursion are two significant swallowing movements, and their related events can be examined using ultrasound imaging, which is physically and radioactively non-invasive. The present study aimed to 1) establish the temporal sequences and timing of swallowing events identified using ultrasound imaging, and 2) investigate the variability of the above temporal sequences and 3) investigate the effect of bolus type on the variability of temporal sequences in non-dysphagic individuals. Forty-one non-dysphagic young adults of both genders (19 males and 22 females) participated in the study. Ultrasound images were acquired mid-saggitally at their submental region during swallowing of boluses with different volume (i.e. 5mL or 10mL) and consistencies (i.e. IDDSI Levels 0 and 4). Timing and sequence of six events 1) displacement onset (TBOn), 2) maximum displacement (TBMax) and 3) displacement offset of tongue base retraction (TBOff); and, 4) displacement onset (HBOn), 5) maximum displacement (HBMax) and 6) displacement offset of the hyoid bone excursion (HBOff) were extracted from the ultrasound images. Out of the 161 swallows, 85.7% follow a general sequence of HBOn < TBOn < HBMax < TBMax < HBOff < TBOff. Percentage adherence to six anticipated paired-event sequences was studied. Results suggested the presence of individual variability as adherence ranged from 75.8% to 98.1% in four of the anticipated sequences, leaving only two sequences (HBOn < TBMax and TBMax < HBOff) obligatory (i.e. 100% adherence). For non-obligatory sequences, it was found that bolus type may have an effect on the level of adherence. Findings of the present study lay the groundwork for future studies on swallowing using ultrasound imaging and also the clinical application of ultrasonography.


Assuntos
Deglutição , Orofaringe , Feminino , Humanos , Osso Hioide/diagnóstico por imagem , Masculino , Orofaringe/diagnóstico por imagem , Língua/diagnóstico por imagem , Ultrassonografia , Adulto Jovem
18.
J Formos Med Assoc ; 121(10): 1892-1899, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35469721

RESUMO

The anterior-superior movement of the hyoid bone plays a significant role in securing the airway and smooth passage of food through the cricopharyngeal muscle. The hyoid bone can be detected easily with instruments such as the videofluoroscopic swallow study (VFSS) and ultrasonography (US), which have made quantitative kinematic analysis possible. Dysphagia is a critical issue in different diseases, including stroke, Parkinson's disease (PD), head and neck cancer, and amyotrophic lateral sclerosis (ALS), and the data obtained on these diseases from swallowing kinematic analysis has been accumulating. In this review article, we aimed to present the distinct features of kinematic analysis of hyoid movement in stroke, PD, head and neck cancer, and ALS. We also present the possible relationship between altered hyoid kinematics and dysphagia.


Assuntos
Esclerose Amiotrófica Lateral , Transtornos de Deglutição , Neoplasias de Cabeça e Pescoço , Doença de Parkinson , Acidente Vascular Cerebral , Fenômenos Biomecânicos , Deglutição/fisiologia , Transtornos de Deglutição/diagnóstico por imagem , Transtornos de Deglutição/etiologia , Humanos , Osso Hioide/diagnóstico por imagem , Osso Hioide/fisiologia
19.
Artigo em Chinês | MEDLINE | ID: mdl-35483692

RESUMO

A clinical case of ectopic thyroid carcinoma in front of hyoid bone was reported in this paper. The patient, a 17-year-old female, presented with an enlarging neck mass of 1-week history. Physical examination revealed a 3 cm×2 cm neck mass in front of the hyoid bone. Ultrasonographic depicted as a cystic solid mixed echogenic mass with punctate strong echogenicity. CT scan showed a cystic-solid mass in front of the hyoid bone with punctate calcifications. The patient was misdiagnosed as a thyroglossal duct cyst and underwent surgery. The final pathological diagnosis was papillary thyroid carcinoma with cyst formation.


Assuntos
Carcinoma Papilar , Carcinoma , Lesões do Pescoço , Cisto Tireoglosso , Neoplasias da Glândula Tireoide , Adolescente , Carcinoma Papilar/patologia , Erros de Diagnóstico , Feminino , Humanos , Osso Hioide/diagnóstico por imagem , Cisto Tireoglosso/diagnóstico por imagem , Cisto Tireoglosso/patologia , Neoplasias da Glândula Tireoide/cirurgia
20.
J Cancer Res Ther ; 18(1): 282-285, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35381802

RESUMO

Giant cell tumor of bone (GCTB) is locally aggressive tumor occurring in the epiphysis of long bones. GCTBs are uncommon tumors in the head-and-neck region and rarely involve hyoid bone. We report a case of GCTB of hyoid bone. The patient presented with swelling in left submandibular region. The tumor was surgically excised after initial denosumab therapy. Despite adequate resection and rehabilitation, he was tube dependent. Subsequently it was found that the patient had a coexisting myotonic dystrophy, unknown to exist with GCTB of hyoid. Eventually, the patient succumbed to respiratory failure secondary to myotonic dystrophy. GCTB hyoid is a rare presentation posing a diagnostic dilemma. Ours is the first case to report the use of denosumab for GCT in head-and-neck region. Myotonic dystrophy Type I and GCTB are both known to result from abnormality of closely situated foci on chromosome 19.


Assuntos
Conservadores da Densidade Óssea , Neoplasias Ósseas , Tumor de Células Gigantes do Osso , Neoplasias Ósseas/patologia , Denosumab , Tumor de Células Gigantes do Osso/diagnóstico , Tumor de Células Gigantes do Osso/cirurgia , Humanos , Osso Hioide/metabolismo , Osso Hioide/patologia , Masculino
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