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1.
J Craniofac Surg ; 33(2): 672-673, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34374674

RESUMO

ABSTRACT: In most cleft centers worldwide, nasal stents are routinely used in the postoperative period to prevent collapse of the lower lateral cartilage and maintain the shape of the nostrils as well as nasal alar. Prefabricated nasal stents are expensive and do not offer options for customization. In this paper, we introduce a cost-effective technique for manufacturing nasal stents using three-dimensional scanning and printing technology.


Assuntos
Fenda Labial , Rinoplastia , Fenda Labial/cirurgia , Humanos , Nariz/diagnóstico por imagem , Nariz/cirurgia , Impressão Tridimensional , Rinoplastia/métodos , Stents , Tecnologia
2.
J Oral Maxillofac Surg ; 75(11): 2411-2421, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28648911

RESUMO

PURPOSE: To evaluate pharyngeal airway space (PAS; nasopharyngeal, oropharyngeal, and total airway) volume and the correlation of an obstructive sleep apnea (OSA) and hypopnea syndrome screening questionnaire (STOP-BANG) with various mandibular setbacks during bimaxillary surgery and compare these findings with an age- and gender-matched skeletal Class I control group. PATIENTS AND METHODS: This retrospective cohort study was composed of patients with skeletal Class III discrepancy who underwent bimaxillary jaw surgery and were assessed with STOP-BANG score, cephalometry, and cone-beam computed tomography (of the PAS). The predictor variable was bimaxillary jaw surgery and included 4-, 6-, and 8-mm setbacks. The primary outcome variables were PAS volume, body mass index, and STOP-BANG score evaluated at 1 week before surgery and after comprehensive orthodontic treatment (11.25 ± 1.95 months). Other variables were grouped into the following categories: demographic and cephalometric parameters. Statistical intragroup and intergroup differences were assessed by paired t and independent t tests (P < .05), respectively. RESULTS: The study sample was composed of 48 patients (18 to 25 yr old); group I received 4-mm setback (n = 16), group II received 6-mm setback (n = 16), and group III received 8-mm setback (n = 16) mandibular surgery, and all test groups received 4-mm maxillary advancement. The entire study group was compared with a skeletal Class I control group (n = 16). The total PAS volume after orthodontic treatment in groups I and II showed a significant decrease compared with the presurgical PAS (P < .001), but the decrease was not less than that in the control group (P > .05). In contrast, the total PAS volume in group III after orthodontic treatment (23,574 ± 1,394 mm3) was less than that in the control group (23,884 ± 1,543 mm3). CONCLUSION: After surgery, patients with Class III discrepancy exhibited a decrease in oropharynx volume; however, the STOP-BANG score showed no change in risk factors scores for OSA at 4- to 8-mm setback surgery of the mandible in bimaxillary jaw surgery.


Assuntos
Tomografia Computadorizada de Feixe Cônico , Má Oclusão Classe III de Angle/cirurgia , Maxila/cirurgia , Faringe/diagnóstico por imagem , Complicações Pós-Operatórias/diagnóstico por imagem , Síndromes da Apneia do Sono/diagnóstico por imagem , Adolescente , Adulto , Estudos de Coortes , Feminino , Humanos , Masculino , Procedimentos Cirúrgicos Ortognáticos/métodos , Complicações Pós-Operatórias/epidemiologia , Estudos Retrospectivos , Medição de Risco , Autorrelato , Síndromes da Apneia do Sono/epidemiologia , Adulto Jovem
3.
J Craniofac Surg ; 27(6): e516-20, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27428916

RESUMO

Recent studies have shown that infantile hemangiomas (IHs) undergo a rapid growth phase between 5.5 and 7.5 weeks of life and do not usually proliferate beyond 6 months; growth thereafter is usually proportionate to the child's growth. This review assesses the evidence for topical timolol as primary monotherapy for cutaneous facial IHs before 12 months of age, and to determine the differences in outcome between early (before 6 months) and late initiation (after 6 months) of timolol. A review of English language articles published up to November 2015 was performed using selected key words. Articles identified were further reviewed for relevance. The full text of studies included for final analysis was perused to include pertinent patient details, treatment protocol with timolol, complications (if any) reported, and response to treatment. Four studies met the inclusion criteria. In children before 12 months of age, the efficacy of topical timolol for the treatment of cutaneous facial IHs in achieving clinically significant improvement as defined by a standardized Global Assessment Score score of 3 and above ranged from 47% to 88%. One study also showed that IH regression was greater in patients started on timolol before 6 months of age compared with those started later (P <0.05). Topical timolol initiated in children before 12 months of age appears to be safe and clinically effective. There was insufficient data for detailed analysis of outcomes in patients who commenced treatment before and after 6 months of age.


Assuntos
Neoplasias Faciais/tratamento farmacológico , Hemangioma/tratamento farmacológico , Timolol/administração & dosagem , Administração Tópica , Antagonistas Adrenérgicos beta/administração & dosagem , Criança , Neoplasias Faciais/diagnóstico , Hemangioma/diagnóstico , Humanos , Resultado do Tratamento
4.
J Craniofac Surg ; 26(3): 687-90, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25974774

RESUMO

BACKGROUND: Le Fort I maxillary distraction with the rigid external distraction (RED) device is performed to correct severe midface retrusion in cleft patients, but it may adversely affect velopharyngeal function. OBJECTIVES: This study aims to investigate the angular changes in the levator veli palatini (LVP) and its influence on velopharyngeal function after maxillary distraction using 3-dimensional computed tomography (3D CT) scan volume rendered images. METHODS: This was a retrospective study of 12 patients. Group 1 had no velopharyngeal function deterioration and group 2 had velopharyngeal function deterioration. Preoperative and 1 year postoperative CT scans were analyzed with Mimics v10 software. Segmentation of the LVP and the nasopharyngeal airway was performed and volumetric images were obtained. Six measurements were made: (1) the angle between the levator plane and the Frankfort horizontal, (2) the angle between the levator plane and the soft palate plane, (3) the angle between the 2 LVP muscles, (4) the pharyngeal depth, and (5, 6) the movement of the inferior pharyngeal point with respect to the horizontal and vertical planes. The independent samples t test, Mann-Whitney test, and paired t tests were used for statistical analyses (P < 0.05). RESULTS: Group 2 had statistically significant reduction in the angle between the levator plane and Frankfort horizontal as well as the soft palate plane. Group 1 had a statistically significant increase in the pharyngeal depth and movement of the inferior pharyngeal point with respect to the horizontal plane. CONCLUSION: A decrease in the angle between the levator plane and the Frankfort horizontal or the soft palate plane was associated with velopharyngeal function deterioration.


Assuntos
Fissura Palatina/cirurgia , Deglutição/fisiologia , Imageamento Tridimensional , Osteogênese por Distração/métodos , Palato Mole/cirurgia , Faringe/cirurgia , Tomografia Computadorizada por Raios X , Criança , Fissura Palatina/diagnóstico por imagem , Fissura Palatina/fisiopatologia , Feminino , Humanos , Masculino , Estudos Retrospectivos
5.
Cleft Palate Craniofac J ; 52(5): 525-31, 2015 09.
Artigo em Inglês | MEDLINE | ID: mdl-25191867

RESUMO

OBJECTIVE: We hypothesize that primary repair of submucous cleft palate (SMCP) with Furlow palatoplasty will not lead to significant differences in speech outcomes for syndromic and nonsyndromic children. DESIGN: Retrospective analysis of patients with primary Furlow repair of SMCP between 2004 and 2012. SETTING: Tertiary care center. PATIENTS/PARTICIPANTS: Thirty-four patients (15 boys; 44%) satisfied our inclusion criteria: multidisciplinary consensus on diagnosis of SMCP, failed trial of speech-language rehabilitation, at least 4 years old at the time of primary surgery, at least 6 months follow-up with a repeat set of postoperative speech assessments. INTERVENTIONS: Primary Furlow palatoplasty for SMCP. MAIN OUTCOME MEASURES: Primary outcomes were based on postoperative perceptual speech assessments and the need for revision surgery. Secondary outcomes included improvement in nasalance scores, postoperative complications, and change in and time to normalization of velar closing ratios. RESULTS: Mean age at surgery = 7.7 years. Of the patients, 17 (50%) were syndromic and 11 (32%) had associated hearing loss. Mean follow-up = 48 months. No patients had postoperative complications, such as wound dehiscence or fistula; however, two patients (one syndromic, one nonsyndromic) required secondary procedures. Velar closing ratios for all patients increased (P < .05) and approached normal at an average of 1.3 years postoperatively. CONCLUSIONS: Although the Furlow palatoplasty can correct anatomic anomalies, it cannot achieve normal perceptual resonance in syndromic patients, possibly because of inherent higher-order deficiencies that affect speech production. Further studies with greater patient numbers are necessary to achieve population statistical significance.


Assuntos
Fissura Palatina/cirurgia , Procedimentos de Cirurgia Plástica , Pré-Escolar , Feminino , Humanos , Masculino , Reoperação , Estudos Retrospectivos , Síndrome , Resultado do Tratamento
6.
Cleft Palate Craniofac J ; 48(4): 445-54, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-20536369

RESUMO

OBJECTIVE: To assess the results of maxillary distraction osteogenesis with the Rigid External Distraction System using three-dimensional computed tomography scan volume-rendered images with respect to stability and facial growth at three time frames: preoperative (T0), 1-year postoperative (T1), and 5-years postoperative (T2). DESIGN: Retrospective analysis. SETTING: Tertiary. PATIENTS: A total of 12 patients with severe cleft maxillary hypoplasia were treated between June 30, 1997, and July 15, 1998. The mean age at surgery was 11 years 1 month. INTERVENTIONS: Le Fort I maxillary distraction osteogenesis. Distraction was started 2 to 5 days postsurgery at a rate of 1 mm per day. The consolidation period was 3 months. No face mask was used. A paired t test was used for statistical analysis. MAIN OUTCOME MEASURES: Overjet, ANB, and SNA and maxillary, pterygoid, and mandibular volumes. RESULTS: From T0 to T1, there were statistically significant increments of overjet, ANB, and SNA and maxillary, pterygoid, and mandibular volumes. The T1 to T2 period demonstrated a reduction of overjet (30.07%) and ANB (54.42%). The maxilla showed a stable SNA and a small but statistically significant advancement of the ANS point. There was a significant increase in the mandibular volume. However, there was no significant change in the maxillary and pterygoid volumes. CONCLUSIONS: Maxillary distraction osteogenesis demonstrated linear and volumetric maxillary growth during the distraction phase without clinically significant continued growth thereafter. Overcorrection is required to take into account recurrence of midface retrusion over the long term.


Assuntos
Fissura Palatina/cirurgia , Imageamento Tridimensional/métodos , Maxila/cirurgia , Osteogênese por Distração/métodos , Tomografia Computadorizada por Raios X/métodos , Adolescente , Cefalometria/métodos , Criança , Feminino , Seguimentos , Humanos , Processamento de Imagem Assistida por Computador/métodos , Estudos Longitudinais , Masculino , Má Oclusão Classe III de Angle/cirurgia , Mandíbula/patologia , Maxila/anormalidades , Maxila/patologia , Desenvolvimento Maxilofacial/fisiologia , Osso Nasal/patologia , Osteotomia de Le Fort/métodos , Sobremordida/patologia , Planejamento de Assistência ao Paciente , Recidiva , Estudos Retrospectivos , Sela Túrcica/patologia , Osso Esfenoide/patologia , Interface Usuário-Computador
7.
Ann Plast Surg ; 65(1): 70-3, 2010 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-20548234

RESUMO

Flap coverage is ideal for wounds exposing bone and tendon, but technically less demanding and speedier options might be considered for small shallow wounds and for wounds with adjacent tissue loss precluding local flaps. We revisited the use of autologous dermal grafting-in combination with vacuum-assisted closure (VAC)-for such wounds.Five small- to medium-sized wounds exposing bone, joint, and/or tendon were each covered using an autologous meshed dermal graft followed by VAC application to induce granulation. Closure was completed at 2 weeks by split-thickness skin grafting over the granulating dermis graft.Complete and stable wound healing was achieved in all cases within 4 weeks of dermal grafting over exposed bone with excellent outcome at 1 year in terms of donor site healing and return to function. All healed wounds had a nearly flush profile with no bulkiness in the foot and toe region.Autologous dermal grafting with VAC is an integrated in vivo tissue engineering system in which the meshed dermis acts as an attractive scaffold for granulation within the conducive VAC-medium. As an alternative to flap surgery or dermal substitutes, the technique is simple, swift, and cost-effective for immediate closure of small shallow wounds and even multiple small wounds, exposing bone and tendon particularly in the lower legs, feet, and toes.


Assuntos
Traumatismos do Pé/cirurgia , Traumatismos da Perna/cirurgia , Tratamento de Ferimentos com Pressão Negativa , Transplante de Pele/métodos , Lesões dos Tecidos Moles/cirurgia , Engenharia Tecidual/métodos , Adulto , Pré-Escolar , Derme/transplante , Fixadores Externos , Feminino , Fraturas Expostas/cirurgia , Humanos , Luxações Articulares/cirurgia , Masculino , Ossos do Metatarso/lesões , Ossos do Metatarso/cirurgia , Fraturas da Tíbia/cirurgia , Alicerces Teciduais , Articulação do Dedo do Pé/lesões , Articulação do Dedo do Pé/cirurgia
8.
J Craniofac Surg ; 21(5): 1651-4, 2010 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-20856072

RESUMO

Palatal clefts in conjunction with space-occupying lesions of the oral or nasal cavities are of interest because they may represent a developmental etiology of palatal clefts. Epignathus is a rare space-occupying tumor of the nasopharynx that can arise from the upper jaw, palate, and sphenoid. It can protrude through the mouth, causing respiratory embarrassment and death. The pathogenesis of epignathus is unknown, but several theories have been proposed. Management depends on the size of the tumor and requires a multidisciplinary approach.


Assuntos
Anormalidades Múltiplas/cirurgia , Neoplasias Bucais/cirurgia , Fissura Palatina/cirurgia , Feminino , Hamartoma/congênito , Hamartoma/cirurgia , Humanos , Recém-Nascido , Imageamento por Ressonância Magnética , Neoplasias Bucais/congênito , Língua/anormalidades
9.
Aesthetic Plast Surg ; 33(3): 336-9, 2009 May.
Artigo em Inglês | MEDLINE | ID: mdl-19089492

RESUMO

BACKGROUND: This review sought to determine the efficacy of tissue sealants such as fibrin tissue adhesives and platelet-rich plasma in reducing postoperative drainage, ecchymosis, and edema after face-lift surgery. METHODS: The electronic databases MEDLINE (1966-May 2007) and EMBASE (1974-May 2007) and the Cochrane Central Register of Controlled Trials (CENTRAL) were searched for human studies, randomized controlled trials, controlled clinical trials, metaanalyses, and reviews of randomized controlled trials using the key words "fibrin tissue adhesive," "tissue sealant," "platelet-rich plasma," "face-lift," "rhytidoplasty," "rhytidectomy," and "facial plastic surgery." The search yielded 10 articles, only 3 of which met our inclusion criteria. The three studies were within-patient comparisons (patients acted as their own controls). RESULTS: Although not statistically significant, the pooled results showed a strong trend toward reduction in postoperative drainage at 24 h and ecchymosis with the use of tissue sealants compared with the control arm of the study. No difference in outcomes was observed between the tissue sealant and control arms of the study in terms of postoperative edema measurement. CONCLUSION: There was no statistically significant benefit from the use of tissue sealants in face-lift surgery. However, tissue sealants may be useful for patients at a high risk for hematoma and ecchymosis formation.


Assuntos
Adesivo Tecidual de Fibrina , Plasma Rico em Plaquetas , Ritidoplastia , Equimose/prevenção & controle , Edema/prevenção & controle , Exsudatos e Transudatos/metabolismo , Hematoma/prevenção & controle , Humanos , Complicações Pós-Operatórias/prevenção & controle , Ensaios Clínicos Controlados Aleatórios como Assunto , Ritidoplastia/efeitos adversos , Ritidoplastia/métodos
10.
Plast Reconstr Surg ; 144(4): 648e-658e, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31568305

RESUMO

BACKGROUND: One-third of infants have ear anomalies, and less than one-third self-correct. Correction of ear deformities by molding exploits the plasticity of the auricular cartilage because of circulating maternal estrogen during infancy. In this study, the authors assess the efficacy of the EarWell Infant Correction System in the correction of ear deformities and determine the factors that affect its outcome. METHODS: The authors conducted a single-center prospective study over a 3-year period. Consecutive full-term infants who underwent ear molding with the EarWell system were recruited. Primary outcome was successful correction of ear anomaly. Secondary outcomes included complications and maintenance of ear shape. Factors identified included type of anomaly, age at application, duration of application, and breastfeeding. RESULTS: Sixty-seven patients with a total of 105 ears were recruited. The anomalies were classified into deformations (66.7 percent) and malformations (33.3 percent). The median age group at presentation was 0 to 7 days (67 percent). Average duration of application was 4.1 weeks. Successful correction was achieved in 86 percent of patients. Ear deformations achieved a significantly higher rate of successful outcome (98 percent) compared with malformations (64 percent) (p < 0.001). Skin complications were common (46 percent) and attributed to our tropical climate. Patients with complications were of a higher mean age (22.1 days) compared with patients with no complications (10.6 days) (p = 0.037). CONCLUSIONS: The EarWell system is an effective nonsurgical option for the treatment of ear anomalies. The type of anomaly was the only predictor of successful correction, whereas age at application, duration of molding, and breastfeeding were not. Complications were more common in older infants. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV.


Assuntos
Orelha Externa/anormalidades , Anormalidades Congênitas/terapia , Desenho de Equipamento , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Estudos Prospectivos , Resultado do Tratamento
11.
Int J Mol Med ; 21(6): 747-51, 2008 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-18506368

RESUMO

Van der Woude syndrome is the most common cause of syndromic orofacial clefting. It is characterised by the presence of lip pits, cleft lip and/or cleft palate. It is transmitted in an autosomal dominant manner, with high penetrance and variable expressivity. Several mutations in the interferon regulatory factor 6 (IRF6) gene have been found in VWS families, suggesting that this gene is the primary locus. We screened for mutations in this gene in three families in our population. There was a recurrent nonsense mutation within exon 9 of the gene for a Malay family consisting of five affected members with different presentations. We also found a co-segregating rare polymorphism which would result in a non-synonymous change 23 bases downstream of the nonsense mutation. This polymorphism was present in <1% of the Malay subjects screened, but was not found among the Chinese and Indians in our population. For another family, a 396C-->T mutation (R45W in the DNA-binding domain) was found in the proband, although the possibility of a genetic defect elsewhere could not be excluded because his mother and twin sister (both unaffected) also had this variant. In the third case with complete absence of family history, a de novo deletion spanning the whole IRF6 gene was detected in the child with VWS. This case of haploinsufficiency caused disruption of orofacial development but not other organ systems as the child has no other medical or developmental abnormalities despite the deletion of at least five other genes.


Assuntos
Anormalidades Múltiplas/genética , Fenda Labial/patologia , Fissura Palatina/patologia , Fatores Reguladores de Interferon/genética , Mutação , Anormalidades Múltiplas/patologia , Adulto , Sequência de Bases , Criança , Mapeamento Cromossômico/métodos , Análise Mutacional de DNA , Proteínas de Ligação a DNA/genética , Saúde da Família , Feminino , Expressão Gênica , Genes Dominantes , Variação Genética , Humanos , Lábio/anormalidades , Masculino , Dados de Sequência Molecular , Linhagem , Penetrância , Polimorfismo de Nucleotídeo Único , Síndrome
12.
J Oral Maxillofac Surg ; 66(2): 277-85, 2008 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-18201609

RESUMO

PURPOSE: Cranial defect reconstruction presents 2 challenges: induction of new bone formation, and providing structural support during the healing process. This study compares quantity and quality of new bone formation based on various materials and support frameworks. MATERIALS AND METHODS: Eighteen dogs underwent surgical removal of a significant portion of their cranial vault. Demineralized bone matrix was used to fill the defect in all animals. In 9 dogs, recombinant human bone morphogenetic protein-2 (rhBMP-2) was added, while the other 9 served as the non-rhBMP-2 group. In each group, 3 animals were fixed with cobalt chrome plates, 3 with adding platelet-rich plasma, and 3 fixed with a Lactosorb (Walter Lorenz Surgical, Inc, Jacksonville, FL) resorbable mesh. Necropsy was done at 12 weeks postoperative. Histomorphometry, density, and mechanical properties of the regenerate were analyzed. RESULTS: The non-rhBMP-2 groups showed minimal substitution of demineralized bone matrix with new bone, while only sporadic remnants of demineralized bone matrix were present in the rhBMP-2 groups. The defect showed more new bone formation (P < .001) and density (P < .001) in the rhBMP-2 groups by Kruskal-Wallis test. The area of new bone was not significantly different among the rhBMP-2 subgroups. The resorbable mesh struts showed no sign of bone invasion or substitution. In the non-rhBMP-2 resorbable mesh group, demineralized bone matrix almost totally disintegrated without replacement by new bone. CONCLUSIONS: The addition of rhBMP-2 to demineralized bone matrix accelerated new bone formation in large cranial defects, regardless of the supporting framework or the addition of platelet-rich plasma. The use of a resorbable mesh in such defects is advisable only if rhBMP-2 is added.


Assuntos
Proteínas Morfogenéticas Ósseas/uso terapêutico , Regeneração Óssea/efeitos dos fármacos , Substitutos Ósseos/uso terapêutico , Transplante Ósseo/métodos , Crânio/cirurgia , Fator de Crescimento Transformador beta/uso terapêutico , Animais , Materiais Biocompatíveis , Proteína Morfogenética Óssea 2 , Placas Ósseas , Substitutos Ósseos/química , Transplante Ósseo/diagnóstico por imagem , Cobalto , Cães , Humanos , Masculino , Plasma Rico em Plaquetas , Crânio/diagnóstico por imagem , Telas Cirúrgicas , Ultrassonografia
13.
Singapore Med J ; 59(7): 360-365, 2018 07.
Artigo em Inglês | MEDLINE | ID: mdl-29297087

RESUMO

INTRODUCTION: The ideal burn dressing for children should aim to alleviate pain, decrease length of hospital stay and minimise complications such as conversion and infection. The current literature is still inconclusive with regard to the gold standard burn dressing for the paediatric population. METHODS: We retrospectively reviewed children with superficial partial thickness burns admitted to our paediatric burns unit from January 2014 to April 2015. A total of 30 patients were included in our study, of whom 13 had Biobrane® dressing. The remaining 17 patients were treated with conventional silver foam dressing (i.e. Biatain® Ag) and served as matched controls. Long-term follow-up scar evaluation was carried out at an average interval of two years after injury. RESULTS: In the Biobrane group, the length of hospital stay was significantly shorter (Biobrane vs. silver foam: 4.76 ± 2.64 days vs. 8.88 ± 5.09 days; p = 0.01) and the infection rate was significantly lower (Biobrane vs. silver foam: 0% vs. 35.3%; p = 0.02). The Biobrane group had no hypergranulation or wound infection and did not require skin grafting. Long-term follow-up scar evaluation did not reveal any statistical difference between the patient groups at the two-year interval. CONCLUSION: Paediatric patients with partial thickness burns treated with Biobrane dressing had shorter hospital stay and lower incidence of infection compared to those treated with conventional silver foam dressing. Biobrane and silver foam dressings did not demonstrate any significant difference in terms of long-term scar outcomes over an average follow-up duration of two years.


Assuntos
Bandagens , Queimaduras/terapia , Materiais Revestidos Biocompatíveis/química , Criança , Pré-Escolar , Cicatriz/fisiopatologia , Cicatriz/prevenção & controle , Feminino , Seguimentos , Humanos , Lactente , Tempo de Internação , Masculino , Manejo da Dor , Pediatria , Estudos Retrospectivos , Prata/química , Singapura/epidemiologia , Cicatrização
14.
Arch Plast Surg ; 45(4): 367-374, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-30037199

RESUMO

BACKGROUND: This analysis presents patient-reported outcomes of breast augmentation procedures performed in Singapore using an inframammary fold incision and the "5 Ps" best practice principles for breast augmentation. These data are the first of their kind in Southeast Asian patients. METHODS: Through a retrospective chart review, patients who underwent primary breast augmentation with anatomical form-stable silicone gel breast implants using an inframammary fold incision were followed for ≥6 months postoperatively. The BREAST-Q Augmentation Module (scores standardized to 0 [worst] - 100 [best]) and Patient and Observer Scar Assessment Scale (POSAS; 1 [normal skin] to 10 [worst scar imaginable]) were administered. Responses were summarized using descriptive statistics. Patient-reported events were collected. RESULTS: Twenty-two Southeast Asian patients (mean age, 35.1 years) completed ≥1 postoperative BREAST-Q and POSAS assessment and were assessed 11 months to 5.5 years postoperatively. The mean postoperative BREAST-Q satisfaction with breasts and psychosocial well-being scores were 69.2 and 84.0, respectively. The mean POSAS score for their overall opinion of the scar was 4.2; the mean scores for all scar characteristics ranged from 1.2 to 4.2. Over 90% of patients (20/22) said that they would recommend the procedure. Patient complaints following surgery included anisomastia (possibly pre-existing; n=2), sensory loss at the nipple (n=2) or around the nipple (n=3), scarring (n=4), and slight capsular contracture (n=1). No patients required reoperation. CONCLUSIONS: Southeast Asian patients reported high long-term satisfaction scores on the BREAST-Q scale and with their scar characteristics following breast augmentation using an inframammary fold incision, and nearly all said they would recommend this procedure. No reoperations were necessary in patients assessed for up to 5.5 years postoperatively.

15.
Ann Acad Med Singap ; 36(11): 911-9, 2007 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-18071597

RESUMO

OBJECTIVE: This study was designed to investigate the optimal combination of known osteogenic biomaterials with shape conforming struts to achieve calvarial vault reconstruction, using a canine model. METHODS: Eighteen adolescent beagles were divided equally into 6 groups. A critical size defect of 6 x 2 cm traversed the sagittal suture. The biomaterials used for calvarial reconstruction were demineralised perforated bone matrix (DBM), recombinant human bone morphogenetic protein-2 (rhBMP2) and autogenous platelet-rich plasma (PRP). The struts used were cobalt chrome (metal) or resorbable plate. The groupings were as follows: 1) DBM + metal, 2) DBM + PRP + metal, 3) DBM + PRP + resorbable plate, 4) DBM + rhBMP2 + metal, 5) DBM + rhBMP2 + PRP + metal, and 6) DBM + rhBMP2 + resorbable plate. Animals were euthanised at 3 months post-surgery. There was no mortality or major complications. Analysis was performed macroscopically, histologically, and with computed tomography (CT). RESULTS: There was complete bony regeneration in the rhBMP2 groups only. Non-rhBMP2 groups had minimal bony ingrowth from the defect edges and on the dural surface, a finding confirmed by CT scan and histology. PRP did not enhance bone regeneration. Shape conformation was good with both metal and resorbable plate. CONCLUSION: rhBMP2 but not PRP accelerated calvarial regeneration in 3 months. The DBM in the rhBMP2 groups were substituted by new trabecular bone. Shape molding was good with both metal and resorbable plate.


Assuntos
Regeneração Óssea/fisiologia , Modelos Animais , Crânio/patologia , Animais , Materiais Biocompatíveis , Proteína Morfogenética Óssea 2 , Proteínas Morfogenéticas Ósseas/farmacologia , Cães , Cuidados Pós-Operatórios , Proteínas Recombinantes/farmacologia , Procedimentos de Cirurgia Plástica , Crânio/crescimento & desenvolvimento , Crânio/cirurgia , Fator de Crescimento Transformador beta/farmacologia
16.
Singapore Med J ; 56(6): e107-9, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-26106248

RESUMO

A congenital lip sinus is a rare condition that has been reported to occur in both the upper and lower lips, either in isolation or in association with congenital deformities such as a cleft lip and palate in Van der Woude syndrome. The prevalence of lower lip sinuses has been estimated to be about 0.00001% of the white population. Upper lip sinuses are even more uncommon. To date, there have been several case reports of upper lip sinuses and fistulas, but no similar cases have been described in Singapore. We herein report a case of congenital upper lip sinus presenting as a recurring upper lip abscess and review the current literature on this condition.


Assuntos
Doenças Labiais/cirurgia , Lábio/anormalidades , Criança , Feminino , Fístula/cirurgia , Humanos , Inflamação , Lábio/cirurgia , Doenças Labiais/congênito , Singapura , Procedimentos Cirúrgicos Operatórios , Resultado do Tratamento
17.
Biomicrofluidics ; 9(5): 052601, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25825623

RESUMO

The poor solubility of many newly discovered drugs has resulted in numerous challenges for the time-controlled release of therapeutics. In this study, an advanced drug delivery platform to encapsulate and deliver hydrophobic drugs, consisting of poly (lactic-co-glycolic acid) (PLGA) nanoparticles incorporated within poly (ethylene glycol) (PEG) microgels, was developed. PLGA nanoparticles were used as the hydrophobic drug carrier, while the PEG matrix functioned to slow down the drug release. Encapsulation of the hydrophobic agents was characterized by fluorescence detection of the hydrophobic dye Nile Red within the microgels. In addition, the microcomposites prepared via the droplet-based microfluidic technology showed size tunability and a monodisperse size distribution, along with improved release kinetics of the loaded cargo compared with bare PLGA nanoparticles. This composite system has potential as a universal delivery platform for a variety of hydrophobic molecules.

18.
Arch Plast Surg ; 41(6): 709-15, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25396184

RESUMO

BACKGROUND: The distally based sural artery flap is a reliable, local reconstructive option for small soft tissue defects of the distal third of the leg. The purpose of this study is to describe an adipofascial flap based on a single sural nerve branch without sacrificing the entire sural nerve, thereby preserving sensibility of the lateral foot. METHODS: The posterior aspect of the lower limb was dissected in 15 cadaveric limbs. Four patients with soft tissue defects over the tendo-achilles and ankle underwent reconstruction using the adipofascial flap, which incorporated the distal peroneal perforator, short saphenous vein, and a single branch of the sural nerve. RESULTS: From the anatomical study, the distal peroneal perforator was situated at an average of 6.2 cm (2.5-12 cm) from the distal tip of the lateral malleolus. The medial and lateral sural nerve branches ran subfascially and pierced the muscle fascia 16 cm (14-19 cm) proximal to the lateral malleolus to enter the subcutaneous plane. They merged 1-2 cm distal to the subcutaneous entry point to form the common sural nerve at a mean distance of 14.5 cm (11.5-18 cm) proximal to the lateral malleolus. This merging point determined the pivot point of the flap. In the clinical cases, all patients reported near complete recovery of sensation over the lateral foot six months after surgery. All donor sites healed well with a full range of motion over the foot and ankle. CONCLUSIONS: The distally based sural artery adipofascial flap allowed for minimal sensory loss, a good range of motion, an aesthetically acceptable outcome and can be performed by a single surgeon in under 2 hours.

19.
Arch Plast Surg ; 41(4): 379-86, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25075361

RESUMO

BACKGROUND: Vulvar defects result chiefly from oncologic resection of vulvar tumors. Reconstruction of vulvar defects restores form and function for the purpose of coitus, micturition, and defecation. Many surgical options exist for vulvar reconstruction. The purpose of this article is to present our experience with vulvar reconstruction. METHODS: From 2007 to 2013, 43 women presented to us with vulvar defects for reconstruction. Their mean age at the time of reconstruction was 61.1 years. The most common cause of vulvar defect was from resection of vulvar carcinoma and extramammary Paget's disease of the vulva. Method s of reconstruction ranged from primary closure to skin grafting to the use of pedicled flaps. RESULTS: The main complications were that of long term hypertrophic and/or unaesthetic scarring of the donor site in 4 patients. Twenty-two patients (51%) were able to resume sexual intercourse. There were no complications of flap loss, wound dehiscence, and urethral stenosis. CONCLUSIONS: We present a subunit algorithmic approach to vulvar reconstruction based on defect location within the vulva, dimension of the defect, and patient age and comorbidity. The gracilis and gluteal fold flaps are particularly versatile and aesthetically suited for reconstruction of a variety of vulvar defects. From an aesthetic viewpoint the gluteal fold flap was superior because of the well-concealed donor scar. We advocate the routine use of these 2 flaps for vulvar reconstruction.

20.
Semin Plast Surg ; 24(3): 288-98, 2010 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22550450

RESUMO

Head and neck reconstruction is an intensive multistep process that requires attention to detail to achieve a successful result. The knowledge and prevention of complications as well as their management is an essential part of the training of the surgeon participating in head and neck reconstruction. This article explores the general complications, including free flap failure, carotid artery blowout, hardware exposure, and ectropion, as well as regional complications relating to operations of the scalp, cranium, base of skull, midface, mandible, and pharyngoesophagus.

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