Craniofacial Syndromes:

Free-floating bone flap posterior cranial vault release in syndromic craniosynostosis

The aim of this study was to investigate the efficacy of non-detachable free-floating bone flap posterior cranial vault release (FFBF-PCVR) in syndromic craniosynostosis. A retrospective review was completed of subjects who underwent FFBF-PCVR at 4 time-points: within 3 months preoperatively, 7 days postoperatively, 3 months postoperatively and at the last follow-up postoperatively. Volumetric and craniometric data, the ratio of ventricular diameter, and the cerebellar tonsillar descent were measured after FFBF-PCVR by using computed tomographic and magnetic resonance imaging. A total of 19 patients underwent FFBF-PCVR. The mean age was 11.7 months (range 4-36 months). The mid cranial height, posterior cranial height, and anterior posterior diameter length significantly increased from preoperative to postoperative 7 days, from postoperative 7 days to postoperative3 months, and from postoperative 3 months to the last follow-up. There was a significant increase in pre- to 7 days postoperative intracranial volume (1195.21 ± 246.56 cm³, p < 0.001; respectively), 3 months postoperative intracranial volume (1228.03 ± 249.61 cm³, p < 0.001; respectively), and intracranial volume at last follow-up (1390.25 ± 219.99 cm³, p < 0.001; respectively). There was a significant increase in 7 days' postoperative to 3 months' postoperative intracranial volume (p < 0.001; respectively), and intracranial volume at last follow-up (p < 0.001; respectively). There was a significant increase in 3 months postoperative to intracranial volume at last follow-up (p < 0.001). The mean intracranial volume increased by an average of 36.6 percent (range, 18.1 to 79.2 percent) at last follow-up. The degree of hydrocephalus in the preoperative child was (45.77% ± 9.17%), and at the last follow-up after surgery, the degree of hydrocephalus was (35.02 ± 9.50%), p < 0.01). Preoperatively, 14 patients (73.7 percent) had radiographic evidence of Chiari malformation type I. The cerebellar tonsillar descent, measured using pre- and postoperative MRI, decreased in all patients after FFBF-PCVR (preoperative: 7.5 ± 1.4 mm, postoperative: 5.3 ± 1.7 mm; p = 0.001). FFBF-PCVR can efficiently expand the posterior cranial vault with only one surgical procedure. Moreover, it helps to relieve hydrocephalus and cerebellar tonsillar herniation.

Exploring mismatch negativity in children with congenital Microtia-Atresia: A Preliminary study

BACKGROUND

To investigate the characteristics of mismatch negativity (MMN) in terms of latency and amplitude in children with bilateral congenital microtia using a Bone conduction implant (Bonebridge), and to explore the relationship between cortical level auditory discrimination, speech perception, and psychosocial well-being.

METHODS

This descriptive, observational, cross-sectional study compared three groups: eight children with bilateral congenital microtia and Bonebridge implants (bilateral group), eight children with unilateral congenital microtia and no hearing aids (unilateral group), and eight children with normal hearing (NH group). Participants underwent MMN evaluation using a classic oddball paradigm with a pure tone burst stimulus, featuring a 1000 Hz standard stimulus and a 1200 Hz deviant stimulus, presented in a sound field at 65 dBHL. Additionally, speech perception tests, the Meaningful Use of Speech Scale (MUSS), and psychosocial status questionnaires, including the Social Anxiety Scale for Children (SASC) and the Children's Loneliness Scale (CLS), were administered to all subjects.

RESULTS

The bilateral group's average MMN latency was 241.23 ± 29.47 ms, and the unilateral group's was 209.96 ± 54.32 ms, both significantly longer than the NH group's 146.05 ± 15.73 ms (p < 0.0001, F=3.509, 95 % CI 68.09 to 122.3 and p = 0.0097, F=11.92, 95 % CI 18.07 to 109.8, respectively). However, no significant difference was found in MMN latency between the bilateral and unilateral groups (p = 0.202, F=3.397, 95 % CI -18.84 to 81.36). The unilateral group scored significantly higher on the MUSS (38.63 ± 1.41 vs. 30.75 ± 3.80, p = 0.0001, F=7.276, 95 % CI -11.16 to -4.590), had lower CLS scores (47.13 ± 8.13 vs. 58.25 ± 8.39, p = 0.024, F=1.065, 95 % CI 1.652 to 20.60), and lower SASC scores (4.13 ± 2.09 vs. 6.50 ± 2.25, p = 0.062, F=1.204, 95 % CI -0.138 to 4.89) compared to the bilateral group. MMN latency in the bilateral group correlated with SASC scores.

CONCLUSION

The MMN latency in congenital microtia patients may serve as an indicator of central auditory discrimination capabilities. In children with bilateral congenital microtia and Bonebridge implants, MMN latency can reflect social anxiety conditions to a certain degree.

Are We Together in This? Relationship Experiences of Parents of Children with Craniofacial Anomalies

OBJECTIVE

The birth of a child with a craniofacial anomaly (CFA) can have a profound psychological impact on the family and the parental relationship. The purpose of this study was to qualitatively investigate how a child's CFA condition affected parents' couple relationship.

SETTING

All patients with a CFA are followed-up by the National Unit for Craniofacial Surgery, a specialized and multidisciplinary team. Hence, participants were recruited within a centralized treatment setting.

DESIGN

We used a qualitative approach to explore the relationship experiences of parents of children with CFAs. The interviews were analysed using a hermeneutic-phenomenological approach.

PARTICIPANTS

The study included 13 parents, nine mothers and four fathers of children with a range of different CFAs. At the time of the interview, 10 participants were married, one was cohabiting, and two were divorced.

RESULTS

Most participants perceived their partners as committed and engaged in caring for their affected child and involved in the family's everyday life, and described a strengthened relationship to their partner after the child with a CFA was born. However, some participants struggled in their relationships with their partners, and did not receive the comfort and support they needed during this critical time, leading to feelings of distance and loneliness.

CONCLUSIONS

Craniofacial teams should be mindful of the importance of the environment surrounding the child, such as parental relationship and family function. Therefore, a comprehensive approach should be included in team-based care, and couples and families in need of extra support should be referred to relevant specialists.

YouTube™ as a source of parents' information for craniosynostosis

OBJECTIVE

This study aimed to evaluate the content, reliability and quality levels of YouTube™ videos regarding craniosynostosis for parents' information.

METHODS

A keyword search for 'craniosynostosis' was conducted on YouTube, and the uniform resource locators of the first 160 videos were initially recorded and evaluated. Ninety-four videos that met the inclusion criteria were analysed. Each video received a score ranging from 0 to 9 points, classifying them as low-content (0-3), moderate-content (4-6) and high-content (7-9). The reliability scores adapted from DISCERN and Global Quality Scale (GQS) scores were recorded.

RESULTS

The median content score for the videos was 4. According to the content scores, 34% of included videos (n = 32) were classified as low-content, 60.6% (n = 57) as moderate-content, and 5.3% (n = 5) as high-content. The median reliability score for the videos was 3, and the median GQS score was 3. The reliability and quality levels of videos classified as high-content and moderate-content were significantly superior to low-content videos (P < .05). Laypersons were identified as the most frequent source of information in the videos. However, most of the videos lacked information about syndromic/non-syndromic forms and specific complications. The importance of early referral/timing of surgery and minimally invasive surgical treatment techniques was mentioned in all high-content videos.

CONCLUSION

The results of the present study suggest that YouTube™ in its current format, is not a fully trustable source for parents seeking information on craniosynostosis. Craniofacial units must increase the content, quality and reliability level of videos on craniosynostosis.

Measurement of Upper Airway Volume in Children with Craniofacial Abnormalities

OBJECTIVE(S)

Previous literature has established a high prevalence of upper airway obstruction in children with craniofacial abnormalities. This study aims to perform quantitative airway volume measurements in patients with craniofacial abnormalities and compare them to age and sex-matched controls.

METHODS

We performed a retrospective review of the records of all children with craniofacial abnormalities who underwent head-and-neck computed tomography (CT) imaging at a single tertiary-care center between 1/1/13 and 12/31/20 using the ICD-10 codes Q75.1, Q75.4, and Q87.0. These patients were then matched by age and sex to patients with isolated craniosynostosis (Q75.0). CT scans were imported into Dolphin Imaging software, and airway volumes were measured for the nasal cavity, nasopharynx, oropharynx, and hypopharynx. The primary outcome was the total airway volume, defined as the sum of these measurements.

RESULTS

Thirty subjects with craniofacial syndromes were matched to 30 patients with isolated craniosynostosis (controls). In both groups, 18 subjects (60%) were male (p = 0.99). The average ages for syndromic patients and controls were 12.1 and 12.9 months, respectively (p = 0.84). On average, the total airway volumes of syndromic patients were 25% lower than those of controls (p = 0.02). Syndromic patients had 39% smaller nasal cavity volumes (p < 0.001) and 32% smaller nasopharyngeal volumes (p < 0.01). Significant volume differences were not observed for the oropharynx or hypopharynx.

CONCLUSION

We present a unique technique to measure airway volumes in patients with craniofacial abnormalities. These findings will help practitioners to further understand the anatomy and pathophysiology of disturbed breathing in children with craniofacial syndromes.

LEVEL OF EVIDENCE

III Laryngoscope, 134:2915-2921, 2024.

Syndromic Craniofacial Disorders

This article reviews the most common craniofacial syndromes encountered in clinical practice. Key physical features of each condition are highlighted to aid in accurate recognition and diagnosis. Optimal individualized treatment approaches are discussed.

The current regenerative medicine approaches of craniofacial diseases: A narrative review

Craniofacial deformities (CFDs) develop following oncological resection, trauma, or congenital disorders. Trauma is one of the top five causes of death globally, with rates varying from country to country. They result in a non-healing composite tissue wound as they degenerate in soft or hard tissues. Approximately one-third of oral diseases are caused by gum disease. Due to the complexity of anatomical structures in the region and the variety of tissue-specific requirements, CFD treatments present many challenges. Many treatment methods for CFDs are available today, such as drugs, regenerative medicine (RM), surgery, and tissue engineering. Functional restoration of a tissue or an organ after trauma or other chronic diseases is the focus of this emerging field of science. The materials and methodologies used in craniofacial reconstruction have significantly improved in the last few years. A facial fracture requires bone preservation as much as possible, so tiny fragments are removed initially. It is possible to replace bone marrow stem cells with oral stem cells for CFDs due to their excellent potential for bone formation. This review article discusses regenerative approaches for different types of craniofacial diseases.

Recent advances in biofunctional guided bone regeneration materials for repairing defective alveolar and maxillofacial bone: A review

The anatomy of the oral and maxillofacial sites is complex, and bone defects caused by trauma, tumors, and inflammation in these zones are extremely difficult to repair. Among the most effective and reliable methods to attain osteogenesis, the guided bone regeneration (GBR) technique is extensively applied in defective oral and maxillofacial GBR. Furthermore, endowing biofunctions is crucial for GBR materials applied in repairing defective alveolar and maxillofacial bones. In this review, recent advances in designing and fabricating GBR materials applied in oral and maxillofacial sites are classified and discussed according to their biofunctions, including maintaining space for bone growth; facilitating the adhesion, migration, and proliferation of osteoblasts; facilitating the migration and differentiation of progenitor cells; promoting vascularization; providing immunoregulation to induce osteogenesis; suppressing infection; and effectively mimicking natural tissues using graded biomimetic materials. In addition, new processing strategies (e.g., 3D printing) and new design concepts (e.g., developing bone mimetic extracellular matrix niches and preparing scaffolds to suppress connective tissue to actively acquire space for bone regeneration), are particularly worthy of further study. In the future, GBR materials with richer biological functions are expected to be developed based on an in-depth understanding of the mechanism of bone-GBR-material interactions.

Imaging of Congenital Craniofacial Anomalies and Syndromes

Craniofacial malformation is one of the most commonly encountered birth defects in the prenatal and postnatal periods. Higher-resolution and 3D antenatal ultrasonography and multidetector computed tomographic scan with 3D reformatted images have improved the definition of the soft tissue and bone structures of the craniofacial anatomy and its malformations. Early diagnosis of these conditions is important to make the clinical decisions and more so in understanding the possibility of malformation recurring in the next pregnancy, which is one of the major concerns for the parents and the treating physicians.

Update in Management of Craniosynostosis

LEARNING OBJECTIVES

After studying this article, the participant should be able to: 1. Understand the craniofacial dysmorphology of craniosynostosis, and the variation of each type. 2. Identify the functional concerns and learn the rationale behind timing of operative intervention. 3. Approach each dysmorphology critically and identify the operative intervention needed to improve form and function 4. Understand and address the specific issues related to syndromic craniosynostosis and be able to delineate management plan.

SUMMARY

Craniosynostosis is a condition in which premature fusion of one or more cranial sutures lead to abnormal head shape and growth restriction of the brain. Nonsyndromic craniosynostosis occurs in isolation, and usually involves a single suture, whereas syndromic craniosynostosis may involve multiple sutures and is associated with extracraniofacial findings. Although surgical management can be similar, the treatment plan must take into consideration issues specific to the syndromes. This article aims to provide a concise overview of the authors' current understanding regarding the presentation, treatment principle, surgical option, and debates in craniosynostosis.

The genetic factors contributing to the risk of cleft lip-cleft palate and their clinical utility

Cleft lip and cleft palate (CL/P) are among the most common congenital malformations in neonates and have syndromic or nonsyndromic forms. Nonsyndromic forms of malformation are being reported to be associated with chromosomal DNA modification by teratogenic exposure and to complex genetic contributions of multiple genes. Syndromic forms are shown to be related to chromosomal aberrations or monogenic diseases. There is a growing body of data illustrating the association of several genes with risk of developing this malformation, including genetic defects in T-box transcription factor-22 (TBX22), interferon regulatory factor-6 (IRF6), and poliovirus receptor-like-1 (PVRL1), responsible for X-linked cleft palate, cleft lip/palate-ectodermal dysplasia syndrome, and Van der Woude and popliteal pterygium syndromes, respectively. Genetic variants in MTR, PCYT1A, ASS1, SLC 25A13, GSTM1, GSTT1, SUMO1 BHMT1, and BHMT2 are being reported to be linked with CL/P risk. The etiology of nonsyndromic CLP is still remained to be unknown, although mutations in candidate genes have been found. Here, we provide an overview about the potential variants to be associated with CL/P for identification of the relative risk of CLP with respect to the basis of genetic background and environmental factors (e.g., dietary factors, alcohol use).

Endoscopic strip craniectomy with orthotic helmeting for safe improvement of head growth in children with Apert syndrome

OBJECTIVE

Bilateral coronal craniosynostosis in Apert syndrome is traditionally managed with open cranial vault remodeling procedures like fronto-orbital advancement (FOA). However, as minimally invasive procedures gain popularity, limited data exist to determine their efficacy in this syndromic population. This study examines whether endoscopic strip craniectomy (ESC) is inferior to FOA in correcting head growth in patients with Apert syndrome.

METHODS

The authors conducted a retrospective review of children with Apert syndrome over a 23-year period. Postoperative head circumferences until 24 months of age were compared for patients treated with ESC versus FOA by using normative growth curves. Intraoperative and postoperative morbidity was compared between groups.

RESULTS

The median postoperative follow-up for the FOA (n = 14) and ESC (n = 16) groups was 40 and 28.5 months, the median age at operation was 12.8 and 2.7 months, and the median operative time was 285 and 65 minutes, respectively (p < 0.001). The FOA group had significantly higher rates of blood transfusion, ICU admission, and longer hospital length of stay (p < 0.01). There were no statistically significant differences in premature reossification rates, complications, need for further procedures, or complaints of asymmetry. Compared to normative growth curves, all patients in both groups had head circumferences comparable to or above the 85th percentile at last follow-up.

CONCLUSIONS

Children with Apert syndrome and bilateral coronal craniosynostosis treated with ESC experience early normalization of head growth and cephalic index that is not inferior to those treated with FOA. Longer-term assessments are needed to determine long-term aesthetic results and the correlation between head growth and neurocognitive development in this population.

"Will You Still Feel Beautiful When You Find Out You Are Different?": Parents' Experiences, Reflections, and Appearance-Focused Conversations About Their Child's Visible Difference

To investigate parents' reflections and experiences of having a child born with an appearance-altering condition, interviews with 33 parents of children born with rare craniofacial conditions were analyzed using inductive thematic analysis. Three themes emerged: "Managing emotions: A dynamic process," "Through another lens: External reminders of difference," and "Awareness of difference: Approaching the child." Findings suggest that although parents learned to accept and love their child's visible difference, external factors such as appearance-altering surgery and other people's reactions activated difficult emotions in parents. Parents struggled to decipher whether and when to raise appearance-related issues with their child, and how this could be done without distressing the child. Anticipatory guidance that facilitates positive appearance-focused conversations both within and outside the home seems to be needed. Parenting skills could also be strengthened by preparing parents for social reactions to the child's visible difference, and their child's changed appearance following surgery.

Association between craniofacial anomalies, intellectual disability and autism spectrum disorder: Western Australian population-based study

BACKGROUND

Accurate knowledge of the relationship between craniofacial anomalies (CFA), intellectual disability (ID) and autism spectrum disorder (ASD) is essential to improve services and outcomes. The aim is to describe the association between CFA, ID and ASD using linked population data.

METHODS

All births (1983-2005; n = 566,225) including CFA births (comprising orofacial clefts, craniosynostosis, craniofacial microsomia and mandibulofacial dysostosis) surviving to 5 years were identified from the birth, death, birth defects and midwives population data sets. Linked data from these data sets were followed for a minimum of 5 years from birth until 2010 in the intellectual disability database to identify ID and ASD. These associations were examined using a modified Poisson regression.

RESULTS

Prevalence of ID and ASD was higher among CFA (especially with additional anomalies) than those without [prevalence ratio 5.27, 95% CI 4.44, 6.25]. It was higher among CFA than those with other gastrointestinal and urogenital anomalies but lower than nervous system and chromosomal anomalies. Children with CFA and severe ID had a higher proportion of nervous system anomalies.

CONCLUSIONS

Findings indicate increased ID and ASD among CFA but lower than nervous system and chromosomal anomalies. This population evidence can improve early identification of ID/ASD among CFA and support service planning.

IMPACT

Our study found about one in ten children born with craniofacial anomalies (CFA) are later identified with intellectual disability (ID). Prevalence of ID among CFA was higher than those with other gastrointestinal, urogenital, and musculoskeletal birth defects but lower than those with the nervous system and chromosomal abnormalities. Most children with craniofacial anomalies have a mild-to-moderate intellectual disability with an unknown aetiology. On average, intellectual disability is identified 2 years later for children born with non-syndromic craniofacial anomalies than those with syndromic conditions. Our findings can improve the early identification of ID/ASD among CFA and support service planning.

Algorithm to the treatment of Crouzon syndrome

Clinical reports regarding the entire surgical sequence in Crouzon syndrome from the neonatal period to the adult age are rare. The purpose of this study is to trace an operative algorithm with a long term follow up in a homogenous group of patients affected by Crouzon syndrome. A retrospective review was conducted for all patients affected by Crouzon syndrome who completed the entire surgical sequence. 7 Crouzon patients (4 females, 3 males) completed the entire surgical sequence at different ages: fronto-orbital advancement (0.9 years), LF III distraction osteogenesis (11.5 years) and orthognathic surgery (18 years). The mean age at the last follow up was 19.3 years; normalization of the face was obtained in all cases with improvement of the respiratory problems. After orthognathic surgery, all patients had stable occlusion. A one-year postoperative CBCT scan revealed almost complete ossification of all osteotomy sites. Frontoorbital advancement and modified Le Fort III distraction osteogenesis are reliable surgical procedures. SARME and conventional orthognathic surgery with reductive genioplasty and fat grafting are performed at the end of the surgical sequence to enhance facial aesthetics.

Fronto-orbito-nasal advancement a surgical approach based on skull development in treatment of craniofacial deformities

The classical treatment of craniosynostosis is based on the fundamental work by Tessier. However, developmental aspects suggest modified osteotomy lines like fronto orbito nasal advancement combined with a modified midfacial distraction. This also makes it possible to take assess the different distances of the anterior displacement of the individual parts of the skull. Pioneering in therapy is less the syndrome itself than the accompanying symptoms such as respiration and intracranial pressure. For brain release we recommended (Joos 1998) the osteoclastic procedure according to Powiertowsky (1974) within the first 6 months of life. For further treatment frontoorbito-nasal advancement and modified midface distraction seem to achieve better results in enlarging the inner nose and a more harmonious profile.

Examining the Relationship Between Wound Complications and the Use of Resorbable Plates in Cranial Vault Reconstruction

BACKGROUND

Resorbable plates are commonly used in cranial vault reconstruction surgery. There are few published papers examining their safety profile. The authors examined the prevalence of wound complications associated with the use of resorbable plates (Inion CPS Fixation System) in pediatric patients undergoing cranial vault reconstruction.

METHODS

A retrospective review of patients (n = 182) who underwent cranial vault reconstruction using resorbable plate fixation was undertaken. All procedures were performed by a single Craniofacial Surgeon at the National Pediatric Craniofacial Center from 2008 to 2016. Wound complications were identified from a prospectively maintained database and medical note review. Several key patient characteristics and surgical variables were also recorded and tested for associations with wound complications.

RESULTS

A total of 58.8% (107 of 182) of patients were male with a median age at surgery of 16.2 months. Overall, 12.1% (22 of 182) experienced a postoperative wound complication requiring hospital admission. A total of 2.73% (5 of 182) of the patients that returned to theatre had remnants of plates removed. The authors had a mean time from primary operation to secondary reoperation of 103 days. In univariate statistical analysis, females were more likely to develop a wound complication. However, in stratified analyses excluding patients with an underlying genetic syndrome, increasing age, and lower weight but not gender were associated with wound complications.

CONCLUSIONS

A 12.1% (22 of 182) wound complication rate with the use of the Inion CPS Fixation System was observed. Inion plates appear to have an equivalent safety profile to other fixation devices. Increasing age and lower weight were associated with an increased risk of wound complications in nonsyndromic patients.

Posterior Cranial Vault Distraction Osteogenesis Utilizing a Posterior-Superior Distraction Vector in the Treatment of Mercedes Benz Pattern Craniosynostosis

ABSTRACT

Bilateral lambdoid and sagittal synostosis, or Mercedes Benz Syndrome, is a rare complex craniosynostosis resulting in frontal bossing, a tapered posterior fossa, and an anteriorly displaced cranial vertex. Its ideal surgical correction must result in posterior expansion, skull elongation, and caudal repositioning of the vertex. We present a craniometric analysis of skull changes with posterior-superior distraction and introduce a novel craniometric measure: vertex position. In this study, a retrospective review was performed to analyze outcomes of posterior cranial vault distraction osteogenesis (PVDO) using a posterior-superior distraction vector from 2016 to 2019. Cranial vertex position was measured as a fraction of the occipitofrontal diameter from rostral to caudal (0-1.0). Four patients underwent PVDO at mean age 10.61 ± 3.16 months utilizing a posterior-superior distraction vector. Linear distraction distance averaged 30.30 ± 0.90 mm with a mean consolidation period of 3.98 ± 0.72 months. Mean corrected change in intra-cranial volume was 236.30 ± 3.71 mL, at an average rate of 7.81 ± 2.00 mL/mm of distraction. Increases in anterior cranial height (7.83 ± 2.51 mm), middle cranial height (8.43 ± 4.21 mm), posterior cranial height (13.15 ± 7.45 mm), and posterior cranial fossa height (21.99 ± 8.55 mm) were observed. Cranial vertex demonstrated a mean posterior movement of 0.18 ± 0.13. PVDO utilizing a posterior-superior distraction vector for management of nonsyndromic bilateral lambdoid and sagittal synostosis effectively increases intracranial volume and height and provides an esthetic outcome with posterior movement of the cranial vertex.

Open Repair Versus Closed Repair: A Cost-Analysis of the Two Surgical Approaches for the Treatment of Craniosynostoses

PURPOSE

The purpose of this study was to quantify the hospitalization charges of the 2 general surgical approaches in the treatment of craniosynostosis and determine if there was a significant difference between the 2. Several studies compared them side-by-side according to specific variables, such as success rates, postoperative complications, blood loss, and length of stay, but were limited by small sample sizes.

METHODS

This is a retrospective cohort study that was conducted using the Kids' Inpatient Database (KID). All patients diagnosed with craniosynostosis (Q75.0) were identified. The procedures were grouped according to the approach taken, whether it was a traditional, open approach, or a closed, minimally invasive approach. The primary predictor variable was the surgical approach (open vs closed). The outcome variables were the hospital charges (US dollars) and length of stay (days). Statistical analyses were based on the univariate and multivariate linear regression models, and P value less than .05 marked the significance level.

RESULTS

Among a sample of 2,585 cases, an open approach was employed in 2,353 cases and a closed approach in 232 cases. Race, payer information, hospital region, admission status (elective vs not elective), patient location, and surgical approach (open vs closed) were all significant predictors (P < .15) of increased hospitalization charges. Relative to white patients, being in the 'other' racial class added $10,987 in hospital charges (P < .05). Relative to the Northeast, being a patient in the West added $33,459 in hospital charges (P < .01). Not being admitted electively added $72,572 (P < .01) relative to elective admissions. Finally, open repair added $59,539 (P < .01) in charges relative to closed repair.

CONCLUSIONS

The traditional open approach added nearly $60,000 to the cost of the procedure when compared with the closed, endoscopic approach. The scope and invasiveness of the open approach demand greater surgical services, hospital services, supplies, and equipment, ultimately contributing to this increased cost.

The need to belong: Subjective experiences of living with craniofacial conditions and undergoing appearance-altering surgery

The purpose of this study was to better understand how individuals with craniofacial conditions experience living with visible differences and make sense of appearance-altering surgery. We conducted semi-structured qualitative interviews with 11 adults with Goldenhar or Crouzon syndrome. Interviews were analysed using a hermeneutic-phenomenological approach to thematic analysis. Our analysis revealed the following overarching theme, To see myself as other people see me, which encompassed three main themes: a) Striving to fit in, b) Altering the way I look and c) Support from family and friends. The participants' sense of their own appearance seemed to be connected to how they perceived others to evaluate their appearance. All had experienced negative reactions from others. They experienced themselves as different and had a desire to belong. All participants had undergone appearance-altering surgery, hoping that by changing appearance, they would reduce negative reactions and feel more connected to and accepted by other people. The process of undergoing appearance-changing surgery was experienced as challenging, and participants wished for a dialogue with surgeons which included psychological and emotional aspects of changing appearance. A better understanding of how to strengthen positive identity processes and feelings of belongingness should be a key focus of future research.

Craniofacial Anomaly Association with the Internal Malformations in the Pediatric Age Group in Al-Fallujah City-Iraq

Objectives

To estimate the prevalence of craniofacial anomalies among Iraqi people and its association with other congenital malformations.

Methods

A hospital-based cohort study. It was conducted in Iraq, Fallujah city from Jan 2019-April 2019. The pediatric age group below 16 years attending the consultation clinic.

Results

The prevalence rate of craniofacial anomalies was 2%. There were 43 (54%) males and 37 (46%) females. A 55 cases (69%) out of total 80 cases have an association with other internal congenital malformations, and 25 cases (31%) have no association. Those associated internal malformations were categorized according to their types into congenital heart disease 33(60%), Renal diseases 9 (16%), CNS anomalies 8(15%), and GIT anomalies 5(9%).

Conclusions

Craniofacial anomalies showed a relatively higher prevalence rate in comparison to other studies worldwide. It was found that the majority of craniofacial anomalies might be associated with other congenital systemic malformations. Furthermore, the necessary actions to identify the frequency and risk factors associated with craniofacial anomalies in the Iraqi population are emphasized to put a better strategy to establish future preventive programs and treatment.

Severe chemosis and treatment following fronto-orbital advancement surgery for Crouzon syndrome: A case report

RATIONALE

Crouzon syndrome is a craniofacial malformation caused by premature fusion of fibrous sutures in infants. It is one of the most common craniosynostosis syndromes, and surgery is the only effective treatment for correcting it. Postoperative complications such as encephalocele, infections, hematoma have been reported. We herein report a case of a 62-month-old boy with Crouzon syndrome who underwent fronto-orbital advancing osteotomy, cranial vault remolding, and extensive osteotomy and subsequently developed left proptosis and severe chemosis, these complications are rare and we believe it will be of use to clinicians, physicians, and researchers alike.

PATIENT CONCERNS

The patient's skull had been malformed since birth, and he had been experiencing paroxysmal headaches coupled with vomiting for 4 months. Having never received prior treatment, he underwent fronto-orbital advancement at our clinic; afterward, left proptosis and severe chemosis occurred.

DIAGNOSIS

The patient was diagnosed with Crouzon syndrome, and the complications included left proptosis and severe chemosis, confirmed by the clinical manifestations, physical examination, and computed tomography (CT).

INTERVENTION

We carried out cranial vault remodeling and fronto-orbital advancement. We applied ophthalmic chlortetracycline ointment on the conjunctivae, elevated the patient's head, evacuated the hematoma, and carried out a left blepharorrhaphy.

OUTCOMES

The proptosis and chemosis resolved with no recurrence. No other complications occurred during the follow-up period (12 months), and CT scans revealed that the hematoma had disappeared. The calvarial vault reshaping was satisfactorily performed, and the patient's vision was not impaired.

LESSONS

Severe proptosis and chemosis are rare complications that can occur after fronto-orbital advancement for Crouzon syndrome. A detailed preoperative examination (including magnetic resonance imaging and CT) is essential for diagnosis. Complete hemostasis, evacuation of hematoma, and placement of a periorbital drainage tube during surgery all contribute to an effective treatment plan. An ophthalmic ointment should be administered, and the patient's head should be elevated during the procedure. Evacuation of retrobulbar epidural hematoma and blepharorrhaphy could also help relieve proptosis and chemosis. Our report describes 2 rare complications associated with the treatment for Crouzon syndrome, and we believe it will be of use to clinicians, physicians, and researchers alike.

Pediatric Fronto-Orbital Skull Reconstruction

Craniofacial surgery in children is a highly challenging discipline that requires extensive knowledge of craniofacial anatomy and pathology. Insults to the fronto-orbital skeleton have the potential to inflict significant morbidity and even mortality in patients due to its proximity to the central nervous system. In addition, significant aesthetic and ophthalmologic disturbances frequently accompany these insults. Craniosynostosis, facial trauma, and craniofacial tumors are all pathologies that frequently affect the fronto-orbital region of the craniofacial skeleton in children. While the mechanisms of these pathologies vary greatly, the underlying principles of reconstruction remain the same. Despite the limited data in certain areas of fronto-orbital reconstruction in children, significant innovations have greatly improved its safety and efficacy. It is imperative that further investigations of fronto-orbital reconstruction are undertaken so that craniofacial surgeons may provide optimal care for these patients.

Isolation and Characterization of Human Suture Mesenchymal Stem Cells In Vitro

BACKGROUND AND OBJECTIVES

Cranial sutures play a critical role in adjustment of skull development and brain growth. Premature fusion of cranial sutures leads to craniosynostosis. The aim of the current study was to culture and characterize human cranial suture mesenchymal cells in vitro.

METHODS

The residual skull tissues, containing synostosed or contralateral suture from three boys with right coronal suture synostosis, were used to isolate the suture mesenchymal cells. Then, flow cytometry and multilineage differentiation were performed to identify the typical mesenchymal stem cell (MSC) properties. Finally, we used quantitative real-time polymerase chain reaction (RT-PCR) to detect the mRNA expression of osteogenesis and stemness related genes.

RESULTS

After 3 to 5 days in culture, the cells migrated from the tissue explants and proliferated parallelly or spirally. These cells expressed typical MSC markers, CD73, CD90, CD105, and could give rises to osteocytes, adipocytes and chondrocytes. RT-PCR showed relatively higher levels of Runx2, osteocalcin and FGF2 in the fused suture MSCs than in the normal cells. However, BMP3, the only protein of BMP family that inhibits osteogenesis, reduced in synostosed suture derived cells. The expression of effector genes remaining cell stemness, including Bmi1, Gli1 and Axin2, decreased in the cells migrated from the affected cranial sutures.

CONCLUSIONS

The MSCs from prematurely occlusive sutures overexpressed osteogenic related genes and down-regulated stemness-related genes, which may further accelerate the osteogenic differentiation and suppress the self-renewal of stem cells leading to craniosynostosis.

Antibacterial Bio-Based Polymers for Cranio-Maxillofacial Regeneration Applications

Cranio-maxillofacial structure is a region of particular interest in the field of regenerative medicine due to both its anatomical complexity and the numerous abnormalities affecting this area. However, this anatomical complexity is what makes possible the coexistence of different microbial ecosystems in the oral cavity and the maxillofacial region, contributing to the increased risk of bacterial infections. In this regard, different materials have been used for their application in this field. These materials can be obtained from natural and renewable feedstocks, or by synthetic routes with desired mechanical properties, biocompatibility and antimicrobial activity. Hence, in this review, we have focused on bio-based polymers which, by their own nature, by chemical modifications of their structure, or by their combination with other elements, provide a useful antibacterial activity as well as the suitable conditions for cranio-maxillofacial tissue regeneration. This approach has not been reviewed previously, and we have specifically arranged the content of this article according to the resulting material and its corresponding application; we review guided bone regeneration membranes, bone cements and devices and scaffolds for both soft and hard maxillofacial tissue regeneration, including hybrid scaffolds, dental implants, hydrogels and composites.

Lateral and Frontal Cephalometric Measurements in a Cohort With Saethre-Chotzen Syndrome

OBJECTIVE

Descriptions of the craniofacial morphology in Saethre-Chotzen syndrome (SCS) are primarily based on case reports or visual assessments of affected families. The aim of this study was to compare cephalometric measurements of the craniofacial skeleton in a cohort of individuals with SCS and age- and sex-matched individuals without craniofacial anomalies.

DESIGN

Retrospective case series.

PATIENTS

Eight girls and 4 boys with SCS (age range, 7.0-19.2 years).

METHODS

Cephalometric measurements were performed using lateral and frontal cephalograms.

RESULTS

Most of the individuals with Saethre-Chotzen syndrome exhibited lower values for SNA, SNB, s-n and s-ar, while their NSL/NL, NSL/ML, NL/ML, and n-s-ba values were higher than the respective mean reference values for healthy individuals. In comparison with age- and sex-matched individuals without craniofacial anomalies, the individuals with SCS showed higher values for the maxillary and mandibular angular measurements, as well as for the menton midline angle.

CONCLUSIONS

This sample of 12 unrelated individuals with SCS is the largest collected to date for cephalometric measurements. We found that the syndrome is associated with bimaxillary retrognathism, posterior maxillary and mandibular inclination, neutral sagittal relation as well as a tendency toward an open vertical skeletal relation, a short and flattened skull base, and facial asymmetry, as compared to individuals without the syndrome.

Sleep-Disordered Breathing and Airway Assessment Using Polysomnography in Pediatric Patients With Craniofacial Disorders

Children with cleft and craniofacial conditions commonly present with concurrent airway anomalies, which often manifest as sleep disordered breathing. Craniofacial surgeons and members of the multidisciplinary team involved in the care of these patients should appreciate and understand the scope of airway pathology as well as the proper means of airway assessment. This review article details the prevalence and assessment of sleep disordered breathing in patients with craniofacial anomalies, with emphasis on indications, limitations, and interpretation of polysomnography.

Ventricular shunt complications in patients undergoing posterior vault distraction osteogenesis

PURPOSE

The primary objective of this study is to investigate post-operative morbidity and shunt revision rates of patients with shunt-dependent hydrocephalus (SDH) undergoing posterior vault distraction osteogenesis (PVDO) compared to patients undergoing conventional posterior vault reconstruction (PVR).

METHODS

A retrospective case-controlled cohort analysis of all patients with SDH undergoing PVDO and PVR for syndromic or complex craniosynostosis was performed. Demographic information, perioperative variables, distraction protocols, and shunt-related complications-infection, surgical revision of shunt, increased length of stay (LOS), and readmission within 90 days of surgery-were compared using the appropriate statistical tests.

RESULTS

Fourteen patients with ventricular shunts who underwent PVDO and eight patients with shunts who underwent PVR were identified. Shunt-related complication rates were significantly higher with PVDO (n = 5) compared to PVR (n = 0), p = 0.0093. Among the five patients who suffered complications, the most common were shunt infection (n = 4), shunt malfunction (n = 4), and wound infections (n = 3). All patients with complications required additional operations for shunt revision and/or replacement; four patients required multiple takebacks for such procedures, with an average of three additional procedures per patient.

CONCLUSIONS

In complex or syndromic craniosynostosis patients who have previously undergone ventricular shunting, PVDO is associated with higher shunt-related complications and need for additional procedures when compared to traditional PVR. While the benefits of PVDO in the treatment of syndromic craniosynostosis are well documented, the risks of PVDO in the face of a VP shunt must be considered. Further investigation into patient-specific risk factors and risk reduction strategies is warranted.

Infectious Complications After Open Cranial Vault Remodeling for Craniosynostosis

BACKGROUND

Surgical site infection (SSI) after open cranial vault reconstruction (CVR), while relatively uncommon, has received little attention in the literature to date. Here, the authors report our institution's experience with the perioperative management of infectious complications following CVR for craniosynostosis and present the first systematic review of the literature on this topic.

METHODS

The authors performed a retrospective chart review for patients with syndromic and nonsyndromic craniosynostosis who underwent open CVR between 1990 and 2015 at a single institution to determine predictors of SSIs and a systematic review of studies that evaluated for SSI after CVR to ascertain the pooled incidence of SSI, common infectious organisms, and prophylactic antibiotic protocols.

RESULTS

Out of 548 primary and 163 secondary CVR cases at our institution, 6 primary reconstruction patients (1.09%) and 9 secondary reconstruction patients (5.52%) developed an SSI requiring extended hospital stay or readmission (P <0.001); overall infection rate was 2.11%. Streptococcus and Staphylococcus species were the most common organisms isolated. On multivariate analysis, syndromic status conferred more than 7 times greater odds of SSI (OR 7.7, P = 0.023). Pooled analysis of the literature yielded an overall SSI rate of 1.05% to 2.01%. In contrast to our institutional findings, the most common organisms reported were Candida species and Pseudomonas aeruginosa. The most common prophylactic antibiotic protocol was a first-generation cephalosporin for 24 to 72 hours post-operatively.

CONCLUSIONS

Patients undergoing secondary reconstruction have higher infection rates after CVR, and syndromic status is an important predictor of infection when controlling for other patient factors. Our literature review reveals nosocomial organisms to be the most commonly reported source of infection, though this is contrary to our institutional findings of skin flora being most common. Antibiotic prophylaxis varies institutionally.

Frequency and Management of Craniofacial Syndromes

BACKGROUND

Craniofacial syndromes occur in approximately 1 in 5600 to 100,000 infants, often resulting in significant morbidity. Due to the heterogeneity of this patient population, no clear consensus consists on optimal treatment modalities and timing. The aim of this study was to analyze the craniofacial syndrome population that were treated at the University Hospital Leuven.

METHODS

A retrospective analysis of patients with a clinical diagnosis of a craniofacial syndrome was performed. Inclusion criteria were patients with a clinical diagnosis of a craniofacial syndrome and that received treatment between "2000-2005" and "2010-2015." Patients with nonsyndromic conditions were excluded. Data regarding patient characteristics, treatment modalities, and treatment outcomes were analyzed.

RESULTS

After matching the inclusion criteria, 98 eligible patients, affected by 40 different syndromes were included. In the period of "2000 to 2005," 48 patients were treated, as compared to 50 patients in the period of "2010 to 2015." A statistically significant decrease over time is seen for cleft surgery and orthodontic treatment (P = 0.0017 and P = 0.0015, respectively). No statistically significant differences were found concerning the age at which treatment was received (P = 0.42). Significant associations between treatment modalities were found for orthognathic surgery and distraction osteogenesis (P < 0.0001), orthognathic surgery and orthodontic treatment (P < 0.0001), and between orthodontic treatment and distraction osteogenesis (P = 0.03311).

CONCLUSION

A decline in cleft reconstruction surgery and orthodontic treatment for patients with craniofacial syndromes was seen over time. A significant association was found between distraction osteogenesis and orthognathic surgery, possibly due to higher reintervention rates for patients treated at a young age.

Sex differences in perceived stigmatization, body image disturbance, and satisfaction with facial appearance and speech among adolescents with craniofacial conditions

Youth with craniofacial conditions often have appearance and speech differences and are vulnerable to social stigmatization and body image disturbances. Given sociocultural pressures for female attractiveness, adolescent girls with craniofacial conditions may be especially vulnerable to body dissatisfaction and appearance-related social stigmatization, though such sex differences have been infrequently studied in this population. This study aimed to: (1) examine sex differences in body image disturbance, satisfaction with speech and facial appearance, and perceived stigmatization among adolescents with craniofacial conditions; and (2) evaluate whether stigmatization perceptions are predictive of body image disturbance and satisfaction with facial appearance and speech. Using a cross-sectional design, 110 adolescents from two craniofacial centers completed measures of body image disturbance, satisfaction with speech and facial appearance, and perceived stigmatization. Females reported significantly greater levels of body image disturbance and lower satisfaction with facial appearance compared to males. There were no significant sex differences for satisfaction with speech or perceived stigmatization. Perceived stigmatization was a significant predictor of body image disturbance, and satisfaction with facial appearance and speech while controlling for sex, body mass index, and age. Interventions to prevent and/or address body image and stigmatization concerns are clinically indicated for both sexes.

Craniofacial surgery and specific airway problems

Infants and children undergoing craniofacial surgery may present with a wide range of diseases and conditions posing an array of challenges to the anesthesiologist. Optimal perioperative care requires an understanding of these diseases and their impact on airway and anesthetic management. For those children with anomalies affecting airway anatomy, soft tissues of the head and neck, or skeletal mobility, advanced airway management techniques (ie, modalities other than direct laryngoscopy) may be required to secure the airway. Additionally, some craniofacial surgical procedures have direct implications on airway management, such as with Le Fort III midface advancement involving halo distractor application, where the distractor device precludes facemask ventilation. For all of these patients, the anesthetic and airway management plans must be tailored to the surgery being performed, the patient's specific conditions, and take into consideration all phases of perioperative care. In this review, we present some of the more commonly encountered craniofacial abnormalities affecting airway management.

Psychosocial Adjustments Among Adolescents With Craniofacial Conditions and the Influence of Social Factors: A Multi-Informant Study

BACKGROUND

Previous studies have investigated psychosocial adjustments among adolescents with cleft lip and/or palate (CL/P), but our understanding of other craniofacial conditions remains limited. The objective of this study is to compare psychosocial adjustments among 3 groups of adolescents: craniofacial conditions other than cleft lip and/or palate (craniofacial anomaly [CFA]), CL/P, and controls (CON). Our secondary objective is to examine how social factors may predict the adjustments levels.

DESIGN

Cross-sectional, multi-informant, controlled survey study.

PARTICIPANTS

Aged 11- to 17-year olds. Craniofacial anomaly (n = 49), isolated CL/P (n = 42), and 55 CON. Total = 146.

OUTCOME MEASURES

The Strengths and Difficulties Questionnaire (self-report, parent report, and teacher report).

RESULTS

All 3 informant groups displayed similar patterns, where CFA reported the highest difficulties, followed by CL/P, while CON scored the lowest. Parent reports demonstrated significant differences among the 3 groups for most subscales and were emphasized for peer problems. Self-reports showed significant differences between CFA and CON for total scores and peer problems, while teacher reports showed significant differences for peer problems only. Craniofacial anomaly displayed the highest frequency of abnormal psychosocial adjustments, followed by CL/P. Experiencing bullying or teasing predicted increased difficulties, while having a good friend predicted decreased difficulties.

CONCLUSIONS

Adolescents with CFA, and to a lesser extent CL/P, may be at a higher risk of having psychosocial problems. Peer problems may constitute the biggest challenge that CFA and CL/P confront. Social factors, especially being bullied or having a good friend, may predict the psychosocial well-being of adolescents with craniofacial conditions.

An interactive and intuitive visualisation method for X-ray computed tomography data of biological samples in 3D Portable Document Format

3D imaging approaches based on X-ray microcomputed tomography (microCT) have become increasingly accessible with advancements in methods, instruments and expertise. The synergy of material and life sciences has impacted biomedical research by proposing new tools for investigation. However, data sharing remains challenging as microCT files are usually in the range of gigabytes and require specific and expensive software for rendering and interpretation. Here, we provide an advanced method for visualisation and interpretation of microCT data with small file formats, readable on all operating systems, using freely available Portable Document Format (PDF) software. Our method is based on the conversion of volumetric data into interactive 3D PDF, allowing rotation, movement, magnification and setting modifications of objects, thus providing an intuitive approach to analyse structures in a 3D context. We describe the complete pipeline from data acquisition, data processing and compression, to 3D PDF formatting on an example of craniofacial anatomical morphology in the mouse embryo. Our procedure is widely applicable in biological research and can be used as a framework to analyse volumetric data from any research field relying on 3D rendering and CT-biomedical imaging.

Medical Stress Reactions and Personal Growth in Parents of Children With a Rare Craniofacial Condition

BACKGROUND

The birth of a child with a congenital craniofacial anomaly (CFA) can have a profound psychological impact on the family. Despite the complexity and variability in treatment for these rare conditions, few studies have been conducted into parents' emotional responses to health-care experiences. The aim of the present study was to investigate parents' subjective experiences of their child's condition and treatment using an in-depth qualitative approach.

METHODS

Individual semistructured interviews were conducted in person or over the telephone with 48 parents of children with a range of rare CFAs. Interviews were transcribed verbatim, translated into English, and analyzed using inductive thematic analysis.

RESULTS

Participants reported physical and psychological symptoms that could be indicative of medical traumatic stress in relation to their child's diagnosis and treatment. Participants described feelings of powerlessness and the weight of being responsible for their child's care. Yet, participants also reported that as a result of their experiences, their perspective on life had changed and they had grown in self-confidence.

CONCLUSIONS

The findings provide insight into the complex physical and psychological effects experienced by parents in response to their child's diagnosis and medical treatment, as well as an understanding of how these experiences may also result in personal growth over time. Implementation of trauma-informed evidence-based resources should be considered in craniofacial care and future research, particularly in regard to prevention and treatment of psychological distress.

Dental development and craniofacial morphology in school-age children

INTRODUCTION

The growth of the craniofacial complex is important for establishing a balanced relationship among the teeth, jaws, and other facial structures. However, there is still a lack of information about craniofacial parameters that are affected by the rate of dental development. The aim of this study was to investigate the association between dental development and craniofacial morphology in school-age children.

METHODS

This study was embedded in the Generation R Study, Rotterdam, The Netherlands. In 3,896 children aged 8 to 11 years, dental development was assessed from panoramic radiographs and craniofacial morphology was assessed by combining cephalometric parameters into 9 uncorrelated principal components, each representing a distinct skeletal or dental craniofacial pattern. The statistical analysis was performed using linear and nonlinear regression model.

RESULTS

Dental development was positively associated with the bimaxillary growth (β = 0.04; 95% CI 0.01 to 0.08). Children with above-average dental development had a tendency toward Class II jaw relationship (β = -0.08; 95% CI -0.13 to -0.04). Regarding dental parameters, the proclination increased for incisors and lips with advanced dental development (β = 0.15 [95% CI 0.10 to 0.19] and β = 0.13 [95% CI 0.09 to 0.17], respectively), but the incisor proclination remained more pronounced in children that had above-average dental development.

CONCLUSIONS

The findings of this large population-based study show that dental development is associated with specific dental and skeletal cephalometric characteristics in school-age children. Further longitudinal studies are necessary to confirm the observed effects over time.

Correlation of Cephalometric Analyses With Clinical Impression in Orthognathic Surgery Patients: Harvold and Steiner Analyses

PURPOSE

A variety of linear (Harvold) and angular (Steiner) cephalometric analyses are used to identify the skeletal basis for a malocclusion; there is no universally accepted standard. The purpose of this study was to compare the concordance of Harvold and Steiner analyses with the clinicians' impression of maxillary and mandibular jaw position.

PATIENTS AND METHODS

We conducted a retrospective cohort study of patients who underwent orthognathic surgery at Massachusetts General Hospital from 2012 through 2016. Patients were included if they had symmetrical deformities not related to trauma, clefts, or syndromes; complete records; and a clinical diagnosis documented at initial consultation. The predictor variables were Harvold- and Steiner-derived diagnoses of jaw position (hypoplasia, neutral, or hyperplasia). The outcome variables were maxillary and mandibular clinical impressions (hypoplasia, neutral, or hyperplasia). The concordance, sensitivity, specificity, positive predictive value (PPV), and negative predictive value relative to clinical diagnoses were calculated.

RESULTS

During the study period 388 patients had orthognathic surgery and 222(112 females, mean age 26.4±9.9 years) met the inclusion criteria. Harvold and Steiner analyses were 82% and 33% concordant with the maxillary clinical impression, respectively (P < .001), and 62% and 52% concordant with the mandibular clinical impression, respectively (P = .044). Steiner analysis had greater concordance in females (P < .001). For maxillary hypoplasia, the maxillary unit length had a sensitivity of 87%, specificity of 36%, and PPV of 92% and the sell-nasion-A (SNA) point had 28%, 84%, and 93%, respectively. For mandibular hypoplasia, the mandibular unit length had a sensitivity of 52%, specificity of 96%, and PPV of 94% and the sell-nasion-B (SNB) point had 52%, 98%, and 97%, respectively. For mandibular hyperplasia, the mandibular unit length had a sensitivity of 46%, specificity of 93%, and PPV of 40% and the SNB point had 73%, 73%, and 23%, respectively.

CONCLUSIONS

Harvold analysis was significantly more consistent with the clinical impression of the maxillary and mandibular sagittal position than Steiner analysis. Both analyses were highly specific and had high PPVs to confirm the clinical impression. Clinicians should consider incorporating Harvold analysis during treatment planning for orthognathic surgery.

“Exposed and Vulnerable”: Parent Reports of Their Child’s Experience of Multidisciplinary Craniofacial Consultations

Objective:

Childhood is a period of extensive socioemotional development, which can be impacted by the presence of a congenital craniofacial anomaly (CFA). Complex multidisciplinary treatment and long-term follow-up are normally required, yet understanding of children’s treatment experiences is limited. The objective of this study was to investigate children’s experiences of multidisciplinary team (MDT) consultations from the perspective of their parents.

Design:

Thirty-eight parents of children with a rare CFA were interviewed in person or over the telephone. Interviews were transcribed verbatim, translated into English, and explored using thematic analysis.

Results:

Background factors influencing the child’s experience of the consultation included age, developmental stage, personality, and prior treatment experiences. Participants tried to prepare their child for meeting the MDT, but did not fully understand what to expect themselves. During consultations, participants were acutely focused on their child’s emotional state, making it difficult to balance their desire to protect the child from potentially negative experiences, and the need to engage in a constructive dialogue with health professionals. Participants believed that health professionals’ conduct could considerably influence the child’s well-being and subsequent treatment decisions. Finally, participants highlighted the need to debrief their child to help them adjust positively.

Conclusions:

The ultimate goal of craniofacial care is to help children develop into confident adults who are able to cope with the challenges associated with their condition. Multidisciplinary teams play a vital role in creating a safe and supportive environment in which children feel genuinely informed and involved in key aspects of their care.

Syndromic Craniosynostosis: Complexities of Clinical Care

Patients with syndromic craniosynostosis have a molecularly identified genetic cause for the premature closure of their cranial sutures and associated facial and extra-cranial features. Their clinical complexity demands comprehensive management by an extensive multidisciplinary team. This review aims to marry genotypic and phenotypic knowledge with clinical presentation and management of the craniofacial syndromes presenting most frequently to the craniofacial unit at Great Ormond Street Hospital for Children NHS Foundation Trust.

Genome-Wide Screening of Aberrant Methylation Loci for Nonsyndromic Cleft Lip

Background:

The pathogenicity of cleft lip (CL) is pretty complicated since it is influenced by the interaction of environment and genetic factors. The purpose of this study was to conduct a genome-wide screening of aberrant methylation loci in partial lesion tissues of patients with nonsyndromic CL (NSCL) and preliminarily validate candidate dysmethylated genes associated with NSCL.

Methods:

Fifteen healthy and sixteen NSCL fetal lip tissue samples were collected. The Infinium HumanMethylation450 BeadChip was used to screen aberrant methylation loci in three NSCL and three healthy lip tissues. The differential methylation sites and functions of the annotated genes between NSCL and healthy lip tissues were analyzed using minfi package of R software, cluster analysis, Gene Ontology (GO) annotation, and metabolic pathway annotation. Gene expression was assessed in nine differentially methylated genes by real-time polymerase chain reaction (PCR). The transcriptions mRNA levels of three out of nine candidate genes were downregulated remarkably in NSCL lip tissues, and these three genes’ abnormal methylation loci were validated by pyrosequencing in 16 NSCL cases and 15 healthy cases.

Results:

In total, 4879 sites in the genes of NSCL odinopoeia fetuses showed aberrant methylation when compared with normal lip tissue genome. Among these, 3661 sites were hypermethylated and 1218 sites were hypomethylated as compared to methylation levels in healthy specimens. These aberrant methylation sites involved 2849 genes and were widely distributed among the chromosomes. Most differentially methylated sites were located in cytosine-phosphoric acid-guanine islands. Based on GO analysis, aberrantly methylated genes were involved in 11 cellular components, 13 molecular functions, and a variety of biological processes. Notably, the transcription of DAB1, REELIN, and FYN was significantly downregulated in lesion tissues of NSCL fetus (P < 0.05). Pyrosequencing results validated that there were two loci in DAB1 with high methylation status in patient tissues (P < 0.05).

Conclusions:

We detected numerous aberrantly methylated loci in lesion tissues of NSCL fetus. Aberrant gene expression in the REELIN signaling pathway might be related with NSCL. Decreased transcription of DAB1, a member of REELIN signal pathway, resulted from its abnormal high methylation, which might be one of the factors underlying the occurrence of NSCL.

Identification and Management of Cranial Anomalies in Perinatology

Neonatal skull and head shape anomalies are rare. The most common cranial malformations encountered include craniosynostosis, deformational plagiocephaly, cutis aplasia, and encephalocele. Improved prenatal imaging can diagnose morphologic changes as early as the second trimester. Prenatal identification also provides perinatologists and neonatologists with valuable information that helps to optimize care during and after delivery. Cranial anomalies require a multidisciplinary team approach and occasionally a lifetime of care. Today, care begins with the perinatologist as many cranial anomalies can be identified in utero with recent advances in prenatal testing.

Deviating dental arch morphology in mild coronal craniosynostosis syndromes

Objectives

To determine whether the intramaxillary relationship of patients with Muenke syndrome and Saethre-Chotzen syndrome or TCF12-related craniosynostosis are systematically different than those of a control group.

Material and methods

Forty-eight patients (34 patients with Muenke syndrome, 8 patients with Saethre-Chotzen syndrome, and 6 patients with TCF12-related craniosynostosis) born between 1982 and 2010 (age range 4.84 to 16.83 years) that were treated at the Department of Oral Maxillofacial Surgery, Special Dental Care and Orthodontics, Children’s Hospital Erasmus University Medical Center, Sophia, Rotterdam, the Netherlands, were included. Forty-seven syndromic patients had undergone one craniofacial surgery according to the craniofacial team protocol. The dental arch measurements intercanine width (ICW), intermolar width (IMW), arch depth (AD), and arch length (AL) were calculated. The control group existed of 329 nonsyndromic children.

Results

All dental arch dimensions in Muenke (ICW, IMW, AL, p < 0.001, ADmax, p = 0.008; ADman, p = 0.002), Saethre-Chotzen syndrome, or TCF12-related craniosynostosis patients (ICWmax, p = 0.005; ICWman, IMWmax, AL, p < 0.001) were statistically significantly smaller than those of the control group.

Conclusions

In this study, we showed that the dental arches of the maxilla and the mandible of patients with Muenke syndrome and Saethre-Chotzen syndrome or TCF12-related craniosynostosis are smaller compared to those of a control group.

Clinical relevance

To gain better understanding of the sutural involvement in the midface and support treatment capabilities of medical and dental specialists in these patients, we suggest the concentration of patients with Muenke and Saethre-Chotzen syndromes or TCF12-related craniosynostosis in specialized teams for a multi-disciplinary approach and treatment.

Comparison of Outpatient and Inpatient Pediatric Rhinoplasty: Results From National Surgical Quality Improvement Program-Pediatric, 2012-2014

INTRODUCTION

Outpatient management of patients undergoing elective surgical procedures has been associated with significantly decreased health care costs compared with inpatient management. This study investigates current practices in outpatient versus inpatient management of pediatric rhinoplasty patients.

METHODS

A query was performed of the 2012 to 2014 National Surgical Quality Improvement Program-Pediatric data sets. Patients age 17 or younger undergoing rhinoplasty as the primary surgical procedure were included. Clinical characteristics and complications were compared among patients managed as inpatients versus outpatients using both univariate and multivariate logistic regression analyses.

RESULTS

Among 938 pediatric rhinoplasty patients, 199 (21.2%) were managed as inpatients. Multivariate analysis revealed multiple variables significantly associated with an increased odds of inpatient management, including young patient age, presence of a congenital malformation, neurologic or nutritional disease, lengthy procedure time, management by a plastic surgeon compared with an otolaryngologist, and certain procedure types including cleft septorhinoplasty, secondary rhinoplasty with intermediate or major revision, and rib cartilage grafting. Complications among both inpatients and outpatients were rare, with the most common complication being readmission among 15 patients (1.6%).

CONCLUSIONS

This study indicates that multiple subgroups of pediatric patients undergoing rhinoplasty procedures have a significantly increased likelihood of inpatient management without any significantly increased likelihood of a complication or need for readmission. Future efforts to manage appropriately selected children on an ambulatory basis may be safe, while improving costs and quality of care.

Posterior Vault Distraction Osteogenesis in Nonsyndromic Patients: An Evaluation of Indications and Safety

PURPOSE

The purpose of this study was to evaluate the indications, safety, and short-term outcomes of posterior vault distraction osteogenesis (PVDO) in patients with no identified acrocephalosyndactyly syndrome (study) and to compare those to a syndromic cohort (controls).

METHODS

Demographic and perioperative data were recorded and compared across the study and control groups for those who underwent PVDO between January 2009 and December 2016. Univariate analysis was conducted using χ and Fisher exact tests for categorical variables, and Mann-Whitney U test for continuous variables.

RESULTS

Sixty-three subjects were included: 19 in the nonsyndromic cohort, 44 in the syndromic cohort. The cohorts had similar proportion of subjects exhibiting pansynostosis (42.1% of nonsyndromic versus 36.4% of syndromic, P = 0.667). The nonsyndromic cohort was significantly older (4.04 ± 3.66 years versus 2.55 ± 3.34 years, P = 0.046) and had higher rate of signs of raised intracranial pressure (68.4% versus 25.0%, P = 0.001) than the syndromic cohort. There was no significant difference in perioperative variables or rate of complications (P > 0.05). The mean total advancement distance achieved was similar, 27 ± 6 mm in the nonsyndromic versus 28 ± 8 mm in the syndromic cohort (P = 0.964). All nonsyndromic subjects with signs of raised intracranial pressure demonstrated improvement at an average follow-up of 22 months.

CONCLUSION

As in the syndromic patient, PVDO is a safe and, in the short-term, effective modality for cranial vault expansion in the nonsyndromic patient. The benefits and favorable perioperative profile of PVDO may therefore be extended to patient populations other than those with syndromic craniosynostosis.