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1.
Aesthetic Plast Surg ; 46(1): 338-341, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-34498141

RESUMEN

BACKGROUND: Rhinoplasty planning requires meticulous forethought and is a source of challenge to surgeons. Traditional anthropometric analyses aim to use measurements and ideal ratios to determine the appropriate changes in nasal measurements such as length and tip projection. More recently, computerized photograph manipulation has been adopted as a means to demonstrate to patients the planned changes in a rhinoplasty and improve communication and patient confidence. It remains undetermined if the changes recommended using traditional anthropometric rhinoplasty planning are similar to those done by an experienced rhinoplasty surgeon manipulating preoperative photographs to an aesthetic ideal. METHODS: Preoperative photographs obtained for clinical use were analyzed from 97 consecutive patients seen in clinic for rhinoplasty or septorhinoplasty by the senior author (R.H.G.). Facial and nasal anthropometric measurements were performed on the preoperative photographs. The analysis prescribed by Byrd and Hobar was used to then calculate their prescribed "ideal" nasal anthropometrics. Separately, these patients had their preoperative photographs manipulated using computer manipulation software by the senior author, with an eye toward creating an aesthetically pleasing nose. Nasal anthropometrics were measured from the manipulated photographs. The changes prescribed in traditional anthropometrics were compared to those obtained from computer manipulation using univariate analyses. RESULTS: The mean patient age was 35.4 years, and the population was 68% female. Average nasal proportions from the computer manipulation were a nasal length 76.1% of the midfacial height, tip projection of 57.7% of nasal length, and radix projection of 24.3% of nasal length. Computerized manipulation minimally changed nasal length relative to Byrd's analysis which decreased nasal length on average (100.3% of the original nasal length versus 88.2%, p<0.01). It prescribed a greater decrease in tip projection than Byrd's analysis (97.7% of original projection versus 99.9% of original projection, p=0.05). Computer manipulation also prescribed a lesser increase in radix projection than Byrd's analysis (100.5% of original radix projection versus 109.3% of original radix projection, p<0.01). CONCLUSIONS: Byrd's analysis remains an excellent tool for guiding the changes in nasal dimensions in rhinoplasty. However, computerized manipulation may help patients and surgeons communicate a common goal. Their desired nasal dimensions may differ from those traditionally prescribed. Specifically, some patients may seek lesser decreases in nasal length or lesser increases in radix projection than Byrd's analysis prescribes. Further research in this topic is warranted, and ultimately the surgeon's judgment and patient goals should drive surgical planning. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors - www.springer.com/00266 .


Asunto(s)
Rinoplastia , Adulto , Antropometría , Estética , Femenino , Humanos , Masculino , Nariz/anatomía & histología , Nariz/cirugía , Rinoplastia/métodos , Programas Informáticos , Resultado del Tratamiento
2.
Aesthetic Plast Surg ; 46(2): 965-971, 2022 04.
Artículo en Inglés | MEDLINE | ID: mdl-34379155

RESUMEN

BACKGROUND: The opioid epidemic continues to worsen in the USA. Post-operative opioid prescriptions contribute to development of opioid use disorders, with studies showing 6% of plastic surgery patients developing new persistent use. Prescribing by surgeons is often excessive, and plastic surgery patients only consume about half of their opioid prescriptions. To date, most studies that investigate post-operative opioid prescribing rely on examining patterns of opioid fills after surgery using administrative claims data, which exclude the overwhelming majority of aesthetic surgeries. The purpose of this study is to investigate opioid prescribing habits amongst aesthetic plastic surgeons. METHODS: A 20-items survey were sent out to the Aesthetic Society. The survey focussed on general pain management techniques, as well as specific opioid prescribing patterns for several common aesthetic surgeries. RESULTS: A total of 291 completed surveys were returned. Respondents were asked about opioid prescribing patterns for several common aesthetic surgeries. Surgeons were most likely to prescribe opioids for post-operative pain control for abdominoplasty (91%). Opioids were least likely to be prescribed for blepharoplasty (58%). For studied surgeries, the number of pills prescribed ranged from 2 to 120 pills per procedure. 45% of respondents reported being concerned that the opioid prescriptions they provide contribute to the development of an opioid use disorder. CONCLUSIONS: Aesthetic plastic surgeons vary widely in their opioid prescribing. Additionally, a significant number are concerned that prescriptions they provide contribute to development of opioid use disorders. This study demonstrates the need to work towards optimizing and standardizing pain management techniques in aesthetic patients. LEVEL OF EVIDENCE V: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .


Asunto(s)
Trastornos Relacionados con Opioides , Cirujanos , Cirugía Plástica , Analgésicos Opioides/uso terapéutico , Estética , Hábitos , Humanos , Trastornos Relacionados con Opioides/tratamiento farmacológico , Trastornos Relacionados con Opioides/epidemiología , Trastornos Relacionados con Opioides/prevención & control , Manejo del Dolor , Dolor Postoperatorio/tratamiento farmacológico , Pautas de la Práctica en Medicina
3.
Aesthetic Plast Surg ; 45(1): 221-223, 2021 02.
Artículo en Inglés | MEDLINE | ID: mdl-33063160

RESUMEN

In this invited discussion, we applaud the authors of "Awareness of Facial Asymmetry and Its Impact on Postoperative Satisfaction of Rhinoplasty Patient" for their efforts to reinforce the importance of recognizing facial asymmetry preoperatively in the rhinoplasty patient. They can be applauded for translating this known key factor into data in the form of validated patient-reported outcomes tools. The study could be improved by better defining the asymmetry that the study patients had and investigating the symmetry of the surgical result. Furthermore, we provide suggestions for how to better counsel patients on facial asymmetry and its effects on their rhinoplasty result. LEVEL OF EVIDENCE V: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266.


Asunto(s)
Rinoplastia , Asimetría Facial/cirugía , Humanos , Satisfacción del Paciente , Satisfacción Personal , Periodo Posoperatorio
4.
Aesthet Surg J ; 41(9): NP1218-NP1224, 2021 08 13.
Artículo en Inglés | MEDLINE | ID: mdl-33725722

RESUMEN

BACKGROUND: With continuous innovation in plastic surgery, new procedures are constantly being introduced. A number of these procedures are generally safe but have the potential for rare yet serious complications. Many surgeons steer clear of these procedures due to safety concerns. OBJECTIVES: The aim of this paper was to survey the membership of The Aesthetic Society to elicit perception of risk of several novel or less mainstream procedures. METHODS: A 24-item survey was sent out to members of The Aesthetic Society. The survey focused on surgeon experience and attitude towards 3 procedures: filler rhinoplasty, gluteal augmentation with fat grafting, and submandibular gland excision. RESULTS: In total, 189 completed surveys were returned. Of the responders, 50%, 49%, and 89% of surgeons said they do not perform filler rhinoplasty, gluteal augmentation with fat grafting, or submandibular gland excision in their practices, respectively. The majority of those who do not perform the procedures selected "danger to the patient" as the primary concern for each of the 3 procedures. Surgeons overwhelmingly reported not learning these procedures in training. Additionally, surgeons perceive the risks of more common procedures such as abdominoplasty and breast augmentation-mastopexy to be significantly lower and more acceptable than those of the studied procedures. CONCLUSIONS: When comparing the perceived complication rates with data published in the literature, particularly when looking at rates of serious or life-threatening complications, plastic surgeons overestimate the risks of procedures with which they are less familiar. This perception of risk, accompanied by the lack of exposure to novel techniques in training, may contribute to surgeons avoiding these procedures.


Asunto(s)
Mamoplastia , Cirujanos , Cirugía Plástica , Estética , Humanos , Percepción
5.
Aesthet Surg J ; 41(8): NP1044-NP1052, 2021 07 14.
Artículo en Inglés | MEDLINE | ID: mdl-33693549

RESUMEN

BACKGROUND: Abdominal body contouring procedures are associated with the highest rates of complications among all aesthetic procedures. Patient selection and optimization of surgical variables are crucial in reducing morbidity and complications. OBJECTIVES: The purpose of this single-institution study was to assess complication rates, and to evaluate BMI, operative time, and history of bariatric surgery as individual risk factors in abdominal body contouring surgery. METHODS: A retrospective chart review was performed of all patients who underwent abdominoplasty, circumferential lower body lift, fleur-de-lis panniculectomy (FDL), and circumferential FDL between August 2014 and February 2020. Endpoints were the incidence of venous thromboembolism, bleeding events, seroma, infection, wound complications, and reoperations. Univariate statistical analysis and multivariate logistic regressions were performed. Covariates in the multivariate logistic regression were BMI, procedure time, and history of bariatric surgery. RESULTS: A total of 632 patients were included in the study. Univariate analysis revealed that longer procedure time was associated with infection (P = 0.0008), seroma (P = 0.002), necrosis/dehiscence (P = 0.01), and reoperation (P = 0.002). These associations persisted following multivariate analyses. There was a trend toward history of bariatric surgery being associated with minor reoperation (P = 0.054). No significant increase in the incidence of major reoperation was found in association with overweight or obese patient habitus, history of bariatric surgery, or prolonged procedure time. BMI was not found to be an individual risk factor for morbidity in this patient population. CONCLUSIONS: In abdominal body contouring surgery, surgery lasting longer than 6 hours is associated with higher incidence of seroma and infectious complications, as well as higher rates of minor reoperation.


Asunto(s)
Abdominoplastia , Cirugía Bariátrica , Contorneado Corporal , Obesidad Mórbida , Abdominoplastia/efectos adversos , Cirugía Bariátrica/efectos adversos , Contorneado Corporal/efectos adversos , Humanos , Obesidad/epidemiología , Obesidad/cirugía , Obesidad Mórbida/epidemiología , Obesidad Mórbida/cirugía , Tempo Operativo , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Complicaciones Posoperatorias/cirugía , Estudios Retrospectivos
7.
J Surg Res ; 193(1): 497-503, 2015 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-25201576

RESUMEN

BACKGROUND: The component separation technique (CST) is an important technique now used frequently in complex ventral hernia repair (VHR). Although this technique has demonstrated superior success rates, there is a paucity of research describing how release of the external obliques coupled with rectus myofascial advancement alters the morphology of the abdominal architecture. In this study, we apply the new concept of analytic morphomics to describe the immediate changes in morphology of the abdomen that take place after VHR by CST. METHODS: We identified 21 patients who underwent VHR by CST and received both preoperative and postoperative computed tomography scans between 2004 and 2009 in our clinical database. The surgical technique involved incisional release of the external oblique muscle lateral to the linea semilunaris with rectus abdominis myofascial advancement in all patients. Using semiautomated morphomic analysis, we measured the pre- and post-operative dimensions of the abdominal wall including the anterior-posterior distance from the anterior vertebra-to-skin and fascia along with the circumferential area of the skin and fascial compartments. Paired Student t-tests were used to compare pre- and post-operative values. RESULTS: After hernia repair, there was a decrease in the anterior vertebra-to-skin distance (16.6 cm-15.8 cm, P = 0.007). There were also decreases in total body area (968.0 cm(2)-928.6 cm(2), P = 0.017) and total body circumference (113.6 cm-111.4 cm, P = 0.016). The distance from fascia to skin decreased as well, almost to the point of statistical significance (3.3 cm-2.9 cm, P = 0.0505). Interestingly, fascia area and circumference did not decrease significantly after the operation (578.2 cm(2)-572.5 cm(2), P = 0.519, and 89.1 cm-88.6 cm, P = 0.394, respectively). CONCLUSIONS: Morphomic analysis can be used to compare and pre- and post-operative changes in patients undergoing abdominal surgery. Our study demonstrates that component separation affects the dimensions of the entire abdomen, but leaves the fascia area and circumference relatively unchanged. These changes in the abdominal wall may help explain the muscular changes observed as a result of this operation and demonstrate that this is a functional operation that restores fascial area. By better defining the effects of this procedure, we can better understand the reason for its clinical success.


Asunto(s)
Pared Abdominal/cirugía , Fasciotomía , Hernia Ventral/cirugía , Herniorrafia/métodos , Recto del Abdomen/cirugía , Adulto , Puntos Anatómicos de Referencia , Fascia/diagnóstico por imagen , Hernia Ventral/diagnóstico por imagen , Humanos , Persona de Mediana Edad , Recto del Abdomen/diagnóstico por imagen , Estudios Retrospectivos , Piel , Columna Vertebral , Grasa Subcutánea/diagnóstico por imagen , Grasa Subcutánea/cirugía , Tomografía Computarizada por Rayos X , Cicatrización de Heridas
8.
J Reconstr Microsurg ; 31(2): 132-8, 2015 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-25503422

RESUMEN

BACKGROUND: Recent research into adipose-derived stem cells (ASCs) suggests that anatomical location has a major impact on the metabolic profile and differentiation capacity of ASCs. By having a better understanding of how various ASCs respond to cellular stressors such as hypoxia, which are induced during routine surgical procedures, we can facilitate future development of cell-based therapies to improve wound healing. PATIENTS AND METHODS: Human ASCs were isolated from the superficial and deep adipose layers of four patients undergoing elective abdominoplasty. ASCs were cultured in hypoxic (1% O2, 5% CO2, and 94% N2) conditions. After 12 and 48 hours, ASCs were assessed for markers of angiogenesis by mRNA levels of vascular endothelial growth factor A (VEGF-A), vascular endothelial growth factor B (VEGF-B), and hypoxia inducible factor 1 α (HIF-1α). Western blot analysis was performed to assess levels of VEGF-A, p-NF-κB, and NF-κB. In addition, in vitro analysis of angiogenesis was performed using Matrigel assay (BD Biosciences, Franklin Lakes, NJ). RESULTS: We observed significant increases in deep ASC's VEGF-A, VEGF-B, and HIF-1α mRNA expression compared with the superficial layer after 24-hour hypoxia (p < 0.05). Similar results were found when examining protein expression levels, with the deep ASCs expressing significantly larger amounts of VEGF-A and p-NF-κB (p < 0.05) compared with the superficial layer. CONCLUSION: Our results suggest that significant variations exist in the angiogenic profile of superficial and deep ASCs. We demonstrate that superficial ASCs are less prone to transcribe potent chemokines for angiogenesis, such as VEGF-A, VEGF-B, and HIF-1α and are less likely to translate VEGF-A and NF-κB. This may help with the selection of specific stem cell donor sites in future models for stem cell therapy.


Asunto(s)
Tejido Adiposo/citología , Adulto , Diferenciación Celular/fisiología , Femenino , Humanos , Hipoxia , Subunidad alfa del Factor 1 Inducible por Hipoxia/análisis , Células Madre Mesenquimatosas , Persona de Mediana Edad , FN-kappa B/análisis , Neovascularización Fisiológica , Reacción en Cadena en Tiempo Real de la Polimerasa , Factor A de Crecimiento Endotelial Vascular/análisis , Factor B de Crecimiento Endotelial Vascular/análisis
9.
J Surg Res ; 186(1): 246-52, 2014 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-24079810

RESUMEN

BACKGROUND: The psoas muscle has been shown to predict patient outcomes based on the quantification of muscle area using computed tomography (CT) scans. The accuracy of morphomic analysis on other muscles has not been clearly delineated. In this study, we determine the correlation between temporalis muscle mass, psoas muscle area, age, body mass index (BMI), and gender. METHODS: Temporalis and psoas muscle dimensions were determined on all trauma patients who had both abdominal and maxillofacial CT scans at the University of Michigan between 2004 and 2011. Age, BMI, and gender were obtained through chart review. Univariate and multivariate analyses were performed to determine the relative relationship between morphomic data of the temporalis and psoas muscles and the ability of such information to correspond with clinical variables, such as BMI, age, and gender. RESULTS: A total of 646 patients were included in the present study. Among the 249 (38.5%) women and 397 (61.5%) men, the average age was 49.2 y. Average BMI was 27.9 kg/m². Total psoas muscle area directly correlated with mean temporalis muscle thickness (r = 0.57, P < 0.001). There was an indirect correlation between age and psoas muscle area (r = -0.52, P < 0.001) and temporalis muscle thickness (r = -0.36, P < 0.001). Neither psoas nor temporalis measurements correlated strongly with BMI (r = 0.18, P < 0.001; r = 0.14, P = 0.002), although stronger correlations were found in a more "frail," subgroup as defined by a BMI of <20 (r = 0.59, P = 0.002). CONCLUSIONS: We demonstrate that dimensions of the temporalis muscle can be quantified and may serve as a proxy for age. Going forward, we aim to assess the utility of temporalis and psoas morphomics in predicting complication rates among trauma patients admitted to the hospital to predict outcomes in the future.


Asunto(s)
Músculos Psoas/anatomía & histología , Músculo Temporal/anatomía & histología , Adulto , Factores de Edad , Anciano , Índice de Masa Corporal , Femenino , Humanos , Masculino , Persona de Mediana Edad , Tomografía Computarizada por Rayos X
10.
J Surg Res ; 192(2): 670-7, 2014 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-24972736

RESUMEN

BACKGROUND: Sternal reconstruction with vascularized flaps is central to the management of sternal wound infections and mediastinitis but carries a high risk of complications. There is a need to identify reliable predictors of complication risk to help inform patients and clinicians in preparation for surgery. Unfortunately, body mass index and serum albumin may not be reliable predictors of complication rates. Analytic morphomics provides a robust quantitative method to measure patients' obesity as it pertains to their risk of complications in undergoing sternal reconstruction. METHODS: We identified 34 patients with preoperative computed tomography scans of the abdomen from a cohort of sternal reconstructions performed between 1997 and 2010. Using semiautomated analytic morphomics, we identified the patients' skin and fascia layers between the ninth and 12th thoracic spine levels; from these landmarks, we calculated morphomic measurements of the patients' abdomens, including their total body cross sectional area and the cross sectional area of their subcutaneous fat. We obtained the incidence of complications from chart review and correlated the incidence of complications (including seroma, hematoma, recurrent wounds, mediastinitis, tracheostomy, and death) with patients' morphomic measurements. RESULTS: Sixty-two percent of patients (n = 21) suffered complications after their operation. Those who suffered from complications, relative to those who did not have complications, had increased visceral fat area (12,547.2 mm(2)versus 6569.9 mm(2), P = 0.0080), subcutaneous fat area (16,520.2 mm(2)versus 8020.1 mm(2), P = 0.0036), total body area (91,028.6 mm(2)versus 67,506.5 mm(2), P = 0.0022), fascia area (69,238.4 mm(2)versus 56,730.9 mm(2), P = 0.0118), total body circumference (1101.8 mm versus 950.2 mm, P = 0.0017), and fascia circumference (967.5 mm versus 868.1 mm, P = 0.0077). We also demonstrated a significant positive correlation between the previously mentioned morphomic measurements and the incidence of complications in multivariate logistic regression models, with odds ratios ranging from 1.19-3.10 (P values ranging from 0.010-0.022). CONCLUSIONS: Increases in abdominal morphomic measurements correlate strongly with the incidence of complications in patients undergoing sternal reconstruction. This finding may influence preoperative risk stratification and surgical decision making in this patient population.


Asunto(s)
Abdomen/anatomía & histología , Superficie Corporal , Procedimientos de Cirugía Plástica/efectos adversos , Procedimientos de Cirugía Plástica/métodos , Complicaciones Posoperatorias/etiología , Esternón/cirugía , Adulto , Anciano , Fascia/anatomía & histología , Femenino , Humanos , Incidencia , Grasa Intraabdominal/anatomía & histología , Masculino , Persona de Mediana Edad , Obesidad/complicaciones , Obesidad/epidemiología , Obesidad/patología , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/patología , Valor Predictivo de las Pruebas , Periodo Preoperatorio , Factores de Riesgo , Esternón/diagnóstico por imagen , Grasa Subcutánea/anatomía & histología , Tomografía Computarizada por Rayos X , Resultado del Tratamiento
11.
J Reconstr Microsurg ; 30(9): 635-40, 2014 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-24911410

RESUMEN

BACKGROUND: Morphomics are three-dimensional measurements of aspects of the human anatomy generated by computed tomographic (CT) imaging. The purpose of this study was to generate preliminary data on the efficacy of morphomics, as a potential risk stratification tool, in predicting abdominal donor site wound-healing complications in patients undergoing abdominal perforator flap breast reconstruction. Patients and METHODS: In total, 58 consecutive patients undergoing deep inferior epigastric perforator (DIEP) flap breast reconstruction were evaluated. Using preoperative CT scan data, we quantified patients' body area, visceral and subcutaneous fat, fascia area, and body depth between T12 and L4. Associations between morphomic measures and complication rates were examined using t-tests and logistic regression. RESULTS: Of the 58 patients, 11 (19%) patients developed a wound dehiscence and 47 (81%) patients healed their abdominal incision without complications. Patients with a dehiscence had a significantly higher body mass index (BMI) (34.32 vs. 29.26 kg/m(2), p = 0.014) than patients without a dehiscence. Multiple morphometric measures including higher visceral fat area (p = 0.003) were significant predictors of abdominal donor site wound dehiscence. BMI (odds ratio [OR], 1.16; 95% confidence interval [CI], 1.03-1.32; p = 0.017) and visceral fat area (OR, 1.24; 95% CI, 1.08-1.42; p = 0.002) were independently significant predictors for wound dehiscence in the entire sample. Only visceral fat area retained its predictive ability in patients with a BMI > 30 kg/m(2). CONCLUSIONS: Morphomic measurements correlate with the likelihood of developing postoperative donor site dehiscence after DIEP flap breast reconstruction. As a proof of concept study, this demonstrates that objective data obtained from CT scans may help in preoperatively assessing the risk for donor site wound healing complications in patients undergoing DIEP flap breast reconstruction.


Asunto(s)
Colgajo Perforante , Adulto , Femenino , Humanos , Imagenología Tridimensional , Mamoplastia/métodos , Persona de Mediana Edad , Periodo Preoperatorio , Curva ROC , Estudios Retrospectivos , Medición de Riesgo , Dehiscencia de la Herida Operatoria/epidemiología , Tomografía Computarizada por Rayos X/métodos , Sitio Donante de Trasplante
12.
Plast Reconstr Surg ; 153(1): 106-107, 2024 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-36877619

RESUMEN

SUMMARY: Revision rhinoplasty is a finesse procedure requiring careful consideration of all of its requisite steps. Lateral osteotomies are required in many cases and, in the setting of prior lateral osteotomies, can often be recreated with digital pressure alone, without the use of an osteotome. The advantages of doing so include decreased dead-space creation and preservation of attachments between the skeleton and overlying soft tissue.


Asunto(s)
Rinoplastia , Humanos , Rinoplastia/métodos , Osteotomía/métodos , Reoperación
13.
Plast Reconstr Surg ; 153(4): 726e-729e, 2024 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-37224448

RESUMEN

SUMMARY: A particularly prominent mandibular angle or a hypertrophied masseter muscle can result in an excessively wide facial appearance, which some individuals may find less aesthetically pleasing. Although normally a benign condition and strictly an aesthetic concern, a hypertrophied masseter can also cause pain, bruxism, and headaches. Neuromodulator for masseter reduction and treatment of bruxism has become first-line treatment. In this article, the authors present the senior author's (R.J.R.) anatomic approach to neuromodulator injection of the masseter, with a corresponding video of the injection technique.


Asunto(s)
Bruxismo , Porcelana Dental , Músculo Masetero/anomalías , Humanos , Bruxismo/complicaciones , Hipertrofia
14.
Plast Reconstr Surg ; 153(3): 555e-557e, 2024 03 01.
Artículo en Inglés | MEDLINE | ID: mdl-37159908

RESUMEN

SUMMARY: Neuromodulators have become a treatment of choice for the management of excess gingival show, or "gummy smile." There have been many proposed algorithms for the optimal placement and dosage of neuromodulator to inject in these locations. The authors aim to clarify these points and provide surgeons with a reliable way to manage the gummy smile that results from hyperactive muscles of the midface.


Asunto(s)
Encía , Sonrisa , Humanos , Estética Dental , Labio/cirugía , Expresión Facial
15.
Plast Reconstr Surg ; 153(2): 303e-321e, 2024 02 01.
Artículo en Inglés | MEDLINE | ID: mdl-36877620

RESUMEN

BACKGROUND: Capsular contracture is one of the most frequent indications for revision following breast augmentation. Management goals focus on restoring breast aesthetics and minimizing subsequent recurrence of capsular contracture. As new data emerge, close review of the data are merited to build evidence-based clinical guidelines to inform surgical practice and management of capsular contracture. METHODS: A systematic review of the MEDLINE, Embase, and Cochrane Database of Systematic Reviews databases was conducted to characterize the surgical management of capsular contracture in revision breast augmentations. The primary endpoint was capsular contracture recurrence rate. RESULTS: The review was conducted in November of 2021. Primary search revealed 14,163 results. Initial screening by title left 1223 articles. Abstract review left 90 articles for full-text review, of which 34 were ultimately included and were all observational in nature. CONCLUSIONS: Capsular contracture management remains an important topic, with limited high-level evidence for establishing clear evidence-based treatment guidelines. Although more evidence is required to assess the effects of capsulectomy, implant exchange, and plane change, these appear to be useful mechanisms for reducing recurrent capsular contracture. There is more evidence regarding the use of acellular dermal matrix, although this still requires long-term follow-up studies. New developments regarding textured implants limit the revision breast augmentation surgeon to smooth devices.


Asunto(s)
Implantación de Mama , Implantes de Mama , Contractura , Mamoplastia , Humanos , Implantes de Mama/efectos adversos , Complicaciones Posoperatorias/etiología , Complicaciones Posoperatorias/cirugía , Revisiones Sistemáticas como Asunto , Mamoplastia/efectos adversos , Mamoplastia/métodos , Contractura/etiología , Contractura/cirugía , Implantación de Mama/efectos adversos , Contractura Capsular en Implantes/etiología , Contractura Capsular en Implantes/cirugía
16.
J Craniofac Surg ; 24(1): 158-62, 2013 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-23348276

RESUMEN

INTRODUCTION: Pierre Robin sequence (PR) and Treacher Collins syndrome (TC) are congenital disorders associated with multiple craniofacial abnormalities. The mandibular malformations linked with these maladies are closely associated with the form and function of the temporalis muscle. Despite these associations, a paucity of research has been directed at quantifying how these malformations affect the tissues of the temporal region. In this paper, we seek to quantify differences in the temporalis muscle and the temporal fat pad using a novel CT-derived analytic program to examine craniofacial morphomic indices within these patient groups in comparison to normal age-matched controls. We posit that the temporalis muscle and temporal fat pad, like other derivatives of the first branchial arch, are hypoplastic in patients with TC and PR compared to age-matched controls. METHODS: High-throughput image analysis was used to reconstruct the 3-dimensional (3D) anatomy and quantify morphomic measures of the temporalis muscle and temporal fat pad in children with PR, TC, and age-matched controls. These steps were completed in a semi-automated method using algorithms programmed in MATLAB v13.0. The 3D reconstructions were analyzed in 3 children with PR (6 temporal regions), 3 children with TC (6 temporal regions), and a control group of 19 children (38 temporal regions). We also quantified the same measurements in a localized "core" sample in the area of greatest thickness, providing a more consistent sample of the tissue position. Relationships between the temporal muscle and fat pad values and craniofacial abnormality type were assessed using Wilcoxon nonparametric test using exact distribution, with a P value of less than 0.05 being deemed significant. RESULTS: The mean age of our patients was 6.0 years in PR and 4.5 years in TC cohorts. We were able to establish an automated methodology to quantify the temporalis muscle and temporal fat pad based on CT characteristics. Localized temporalis volume and localized temporalis area were significantly smaller in children with PR than in the control group. Total temporalis fat volume and localized temporalis area were significantly less in children with TC than in the control group. When compared to each other, the PR group had small morphomic values compared to TC group. CONCLUSIONS: There are significant morphomic differences in the temporalis muscle and the temporal fat pad in children with either PR or TC when compared to age-matched control group which can be measured from pre-existing CT scans. Specifically, both of these test groups show decreases in the morphomic measures of the temporalis region. The quantification of these changes corroborates and objectifies the clinical findings associated with these congenital deformities while simultaneously allowing for preoperative planning. Furthermore, this finding confirms that the hypoplasia seen in these patient populations is not only hypoplasia of the mandible but also of the surrounding functional matrix, which includes the temporalis muscle and temporal fat pad.


Asunto(s)
Tejido Adiposo/anomalías , Disostosis Mandibulofacial/diagnóstico por imagen , Disostosis Mandibulofacial/patología , Síndrome de Pierre Robin/diagnóstico por imagen , Síndrome de Pierre Robin/patología , Músculo Temporal/anomalías , Músculo Temporal/diagnóstico por imagen , Tejido Adiposo/diagnóstico por imagen , Estudios de Casos y Controles , Niño , Preescolar , Femenino , Humanos , Imagenología Tridimensional , Masculino , Michigan , Interpretación de Imagen Radiográfica Asistida por Computador , Estudios Retrospectivos , Tomografía Computarizada por Rayos X
17.
J Craniofac Surg ; 24(5): 1577-81, 2013 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-24036730

RESUMEN

INTRODUCTION: Patients with mandibular fracture often have comorbidities and concomitant injuries making the decision for when and how to operate a challenge. Physicians describe "temporalis wasting" as a finding that indicates frailty; however, this is a subjective finding without quantitative values. In this study, we demonstrate that decreased morphomic values of the temporalis muscle and zygomatic bone are an objective measure of frailty associated with increased injury-induced morbidity as well as negative impact on overall hospital-based clinical outcomes in patients with mandible fracture. METHODS: Computed tomographic (CT) scans from all patients with a diagnosis of a mandible fracture in the University of Michigan trauma registry and with a hospital admission were collected from the years 2004 to 2011. Automated, high-throughput CT analysis was used to reconstruct the anatomy and quantify morphomic values (temporalis volume, area and thickness, and zygomatic thickness) in these patients using MATLAB v13.0 (MathWorks Inc, Natick, MA, USA). Subsequently, a subset of 16 individuals with a Glasgow Coma Scale of 14 or 15 was analyzed to control for brain injury. Clinical data were obtained, and the association between morphomic measurements and clinical outcomes was evaluated using Pearson correlation for unadjusted analysis and multiple regression for adjusted analysis. RESULTS: The mean age of patients in the study was 47.1 years. Unadjusted analysis using Pearson correlation revealed that decreases in zygomatic bone thickness correlated strongly with increases in hospital, intensive care unit, and ventilator days (P < 0.0001, P = 0.0003, and P = 0.0017, respectively). Furthermore, we found that decreases in temporalis mean thickness correlated with increases in hospital and ventilator days (P = 0.0264 and P = 0.0306, respectively). Similarly, decreases in temporalis local mean thickness are significantly correlated with increases in hospital and ventilator days (P = 0.0232 and P = 0.0472, respectively). CONCLUSIONS: Decreased thicknesses of the zygomatic bone and temporalis muscle are significantly correlated with higher hospital, ventilator, and intensive care unit days in patients with mandibular fracture receiving reconstructive operations. This morphomic methodology provides an accurate, quantitative means to evaluate craniofacial trauma patient frailty, injury, and outcomes using routinely obtained CT scans. In the future, we plan to apply this approach to determine preoperative risk stratification and assist in surgical planning.


Asunto(s)
Densidad Ósea/fisiología , Cefalometría/métodos , Curación de Fractura/fisiología , Indicadores de Salud , Interpretación de Imagen Asistida por Computador , Fracturas Mandibulares/diagnóstico por imagen , Fracturas Mandibulares/cirugía , Músculo Temporal/diagnóstico por imagen , Músculo Temporal/cirugía , Tomografía Computarizada por Rayos X , Cigoma/diagnóstico por imagen , Cigoma/cirugía , Adulto , Anciano , Comorbilidad , Femenino , Escala de Coma de Glasgow , Humanos , Masculino , Mandíbula/diagnóstico por imagen , Mandíbula/cirugía , Persona de Mediana Edad , Planificación de Atención al Paciente , Pronóstico , Procedimientos de Cirugía Plástica , Músculo Temporal/patología , Resultado del Tratamiento , Cigoma/patología
18.
Plast Reconstr Surg ; 152(5): 828e-833e, 2023 11 01.
Artículo en Inglés | MEDLINE | ID: mdl-36728200

RESUMEN

SUMMARY: Dorsal reduction and reshaping is an essential part of many rhinoplasty procedures. The steps of component dorsal reduction have been well established. The authors describe refinement of the dorsal reshaping process to improve the quality and consistency of results.


Asunto(s)
Rinoplastia , Humanos , Rinoplastia/métodos , Estética , Tabique Nasal/cirugía
19.
Plast Reconstr Surg ; 2023 Jun 27.
Artículo en Inglés | MEDLINE | ID: mdl-37379459

RESUMEN

Hemangiomas of the nasal tip are a relatively uncommon presentation of a common tumor. While optimal medical and surgical management of nasal tip infantile hemangiomas has been described and debated extensively in the literature, to our knowledge, there is no report of secondary aesthetic and functional rhinoplasty in these patients at skeletal maturity until now. This special topic provides an excellent example of the five key technical elements to revision rhinoplasty in the skeletally mature patient with history of nasal tip infantile hemangioma.

20.
Plast Reconstr Surg ; 152(1): 83e-84e, 2023 07 01.
Artículo en Inglés | MEDLINE | ID: mdl-36595570

RESUMEN

SUMMARY: The buccal fat pad has long been noted for its complex anatomy and its significance to facial aesthetics. Its bulk is mostly deep facial fat immediately superficial to the buccinator muscle. The buccal fat pad has a main body and four extensions: buccal, pterygoid, superficial temporal, and deep temporal. It can be removed in patients with round, heavy faces and anterior buccal fullness to slim the lower face and contour the jawline. This article describes the authors' technique for buccal fat pad removal, with a goal of conservative fat pad reduction.


Asunto(s)
Procedimientos de Cirugía Plástica , Humanos , Mejilla/cirugía , Mejilla/anatomía & histología , Tejido Adiposo/trasplante , Músculos Faciales/cirugía
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