Fig 1 - uploaded by Yi Fan
Content may be subject to copyright.
Typical clinical characteristics of a congenital midline cervical cleft patient: a superior skin tag and a reddened weeping strip of atrophic skin in the neck, with a sinus tract at the caudal end.
Source publication
Congenital midline cervical cleft (CMCC) is a rare condition that consists of a cutaneous midline neck lesion with a sinus extending inferiorly towards the sternum. A fibrous band that extends superiorly to the mandible is a consistent feature of the condition. Restriction of growth of the mandible, possibly due to incomplete removal of the band, i...
Context in source publication
Context 1
... Australia over a 10-year period were reviewed. The diagnosis was made clinically based on the presence of clas- sic features of CMCC: a superior nipple-like skin tag and a reddened strip of atrophic skin occurring at any level between the chin and the sternal notch, with a sinus tract at the caudal end. A typical clinical case is shown in Fig. ...
Similar publications
Background: The perception of facial aesthetics is a complex topic due to its subjective nature and it can be influenced by several factors. The purpose of this study was to compare the perception of general dentists, orthodontists, maxillofacial surgeons, and lay people by evaluating facial aesthetics in skeletal class III patients, especially for...
Citations
... Лікування серединної розщілини шиї. Основне лікування -видалення СРШ, яке можна проводити в будь-якому віці, для попередження формування контрактури шиї та поліпшення косметичного компонента якості життя пацієнтів, особливо при сформованій ретрогнатії, яка часто характерна для цієї патології через зростання нижньої щелепи, або обмеженням її рухомості [5]. Існує думка деяких фахівців щодо доцільності виконання оперативного лікування до 2-річного віку для попередження рецидивів патології та формування грубої контрактури шиї в більш старшому віці [8,9]. ...
Midline cervical cleft - (synonym: webbed neck, pterygium colli medianum, neck ugliness), belongs to rare congenital defects which, unfortunately, have not been widely covered in the specialized medical literature at the modern stage of the development of medicine. It is confirmed by the fact that until 2014 according to the literature search there were a little over 100 detailed descriptions of the respective pathology. Purpose - to summarize the experience accumulated by experts in order to understand deeper all the aspects of Congenital midline cervical cleft, to introduce the present position of this rare congenital malformation to colleagues, to learn the structural parts of this pathology and the tactic for its treatment. The article represents the last data from scientific literature about Congenital midline cervical cleft and the analytic results of the two medical cases with this congenital malformation in children. Studying these cases, we used general clinical tests and histological research for the removal tissues. Conclusions. The current lack of information on the midline cervical cleft as well as the results of histological examinations in different clinical cases confirm the necessity of further study of this rare congenital defect. In this case, a deeper analysis of embryological, genetic and environmental factors influencing the process of formation of this pathology can be of help. In our opinion, performing the surgery becomes appropriate before two-year age in order to prevent the relapse of this pathology and severe neck contractures in the future. The study was carried out in accordance with the principles of the Helsinki declaration. The informed consent of the patient was obtained for conducting the studies. No conflict of interests was declared by the authors.
... In contrast to conventional methods which analyses subsets of derived linear distances and angle measurements the whole surface of the object is analy zed and co mpared, p roviding direct and intuitive visualizations of the impact of growth and treatment on the facial surface. [6][7][8] However, little information is available about applying such techniques in the literature about orthodontic treatment effects on the entire face, except an recent published paper evaluating the soft tissue changes during the alignment stage. 9 Extraction of four premo lars is often reco mmended to decrease the convexity of the lo wer face and the fullness of the lips. ...
Purpose:
To apply geometric morphometrics and multivariate statistics to evaluate changes of the face for female Chinese patients who underwent orthodontic treatment with different type of anchorage control.
Methods:
Forty-six adult female patients were enrolled including 33 four first premolars extraction cases (17 patients with mini-implants for maximum anchorage control and 16 patients without mini-implants) and 13 non-extraction cases with minimum treatment duration of 15 months. Spatially-dense correspondence were established among all the images The pre-and post-treatment average faces of the two extraction groups and the non-extraction group were generated. Partial least squares regression was used to test the statistical significance of the effects of treatment for different anchorage choice.
Results:
The upper and lower lips were retruded significantly after treatment in the extraction groups. In the maximum anchorage control group, the temple and cheek were depressed by approximately 1mm and the zygomatic regions were increased in the mid-face. However, these changes were not statistically significant. In comparison, no statistically significant facial changes occurred in the non-extraction group.
Conclusions:
The anchorage choice and the removal of four first premolars extraction influence lip shape as well as the perioral regions. However, extraction treatment does not impact the appearance of the cheeks and temples on a statistically level, as compared to orthodontic treatment without premolar extractions. Spatially-dense geometric morphometric facilitates comprehensive treatment effects quantification and visualization on the full facial changes for improving orthodontic outcome evaluation.
... Correspondence between quasi-landmarks on all images was achieved by an automated mapping strategy, as described previously. 20,21 Essentially, a generic template face was warped into the shape of each image. Each face is then represented by the 8,568 quasi-landmark points of the template. ...
Purpose:
The purpose of this study was to characterize the facial morphology of Chinese children with hypohidrotic ectodermal dysplasia (HED) and quantify facial changes after prosthetic treatment.
Methods:
3-D facial images of 12 HED children were taken and their facial morphology was compared against 28 healthy controls. Facial changes due to denture placement were also quantified. Group differences were quantified and visualized by superimposing the average faces with robust Procrustes superimposition. Partial least square regression was used to investigate the effects of group membership (HED or controls, pre- and posttreatment) on facial morphology.
Results:
HED patients had a more prominent forehead, depressed nasal region, depressed zygomatic zone, flat cheeks, and protuberant lips and chin compared with controls. The strongest differences were localized in the middle and lower face, especially in the cheeks and zygomatic and chin regions (P<0.05). Pre- and post-treatment comparisons showed the chin retruded (P<0.05). Statistical facial differences between the posttreatment patients and the controls were localized in the perinasal area and submental region (P<0.05).
Conclusions:
The facial morphology of Chinese children with hypohidrotic ectodermal dysplasia differs significantly from healthy children, creating a more concave facial profile. Posttreatment facial changes provide a better understanding of dentures' role in improving facial appearance.
... Using a database of 3D images of normal children, we previously developed a method of creating an appropriate age-specific average head shape along with SDs at each point. 10,17,18 This can be used to Fig. 3. image comparison by nonrigid registration. First a copy (orange) of the pre image is made. ...
Three-dimensional (3D) photography is becoming widely used in plastic surgery. It provides an accurate and reproducible record of the facial surface anatomy and could be a versatile tool for treatment planning and assessment. However, the existing software tools available for the assessment of 3D facial imaging often give highly misleading results. The goal of this special topic article is to give clinicians an insight into methods of 3D image assessment and explain the reasons why results may be misleading. We point toward the advantages of an alternative approach using “nonrigid surface registration” for the comparison of pre- and postsurgical images. This approach is compared with the regular rigid surface registration, and this is illustrated by the assessment of a child with Crouzon syndrome before and after LeFort III osteotomy and distraction. Findings of the standard method imply that changes have occurred that are anatomically not possible, whereas the alternative approach indicates realistic changes. Furthermore, we demonstrate an exciting capacity of 3D image analysis to construct reference populations of normal head size and shape. These can be used to assess the parts of the head that are normal and abnormal pre- and posttreatment of the same child. We conclude that, while 3D image analysis has great potential in surgical assessment, existing software does not always give an adequate assessment. Collaboration among surgeons and engineering and computer science specialists should be encouraged. This way, more comprehensive and accurate techniques in patient assessment and surgical planning can be developed and applied in clinical practice.
... Nevertheless, this assessment strategy is labor intensive and requires highly trained experts to process the 3D images. 52 In the midst of these difficulties lies an opportunity for the development of a publicly available, userfriendly software application for 3D assessment. Thus, retrospective multicenter studies using the same assessment method (with a low risk of bias) to evaluate the therapeutic effects or to monitor growth could be designed. ...
Purpose:
The use of nonionizing 3-dimensional (3D) imaging in cleft lip and palate (CLP) research is well-established; however, general guidelines concerning the assessment of these images are lacking. The aim of the present study was to review the methods for quantification of soft tissue changes on 3D surface images acquired before and after an orthopedic or surgical intervention in CLP patients.
Materials and methods:
A systematic literature search was performed using the databases MEDLINE (through PubMed), CENTRAL, Web of Science, and EMBASE. The literature search and eligibility assessment were performed by 2 independent reviewers in a nonblinded standardized manner. Only longitudinal studies reporting the assessment of pre- and postoperative 3D surface images and at least 10 CLP patients were considered eligible.
Results:
Fifteen unique studies (reported from 1996 to 2017) were identified after an eligibility assessment. The assessment of the 3D images was performed with landmark-dependent analyses, mostly supported by superimposition of the pre- and postoperative images. A wide spectrum of superimposition techniques has been reported. The reliability of these assessment methods was often not reported or was insufficiently reported.
Conclusions:
Soft tissue changes subsequent to a surgical or an orthopedic intervention can be quantified on 3D surface images using assessment methods that are primarily based on landmark identification, whether or not followed by superimposition. Operator bias is inherently enclosed in landmark-dependent analyses. The reliability of these methods has been insufficiently reported.
Congenital midline cervical cleft is a rare malformation. Typical case shows an area of hypotrophic skin, a cranial nipple-like structure, and a caudal blind sinus. Cervical extension is limited. Relapse of the retraction is common following cutaneous z-plasty. The aim of this study is to describe the radiological, surgical, and histological findings of the 4 cases treated in our center in the last 8 years and communicate the finding of a contractile structure, anterior to the platysma, composed by striated muscle, figure not previously described. This distinct muscular band is responsible for neck retraction. Removal of this releases cervical tension and is essential to avoid the relapse.
