Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 45
Filtrar
Más filtros

Bases de datos
País/Región como asunto
Tipo del documento
País de afiliación
Intervalo de año de publicación
1.
Aesthetic Plast Surg ; 47(1): 144-155, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-35534779

RESUMEN

BACKGROUND: Early relapse is an adverse outcome of facelift surgery. The rate of early relapse is an indirect measure of the longevity and efficacy of facelift techniques. However, early relapse after facelift is ill-defined, under-evaluated, and under-reported, and literature data on the subject are dispersed. In this systematic review, we aimed to analyze facelift studies using relapse-related outcomes (RROs). Our secondary aim was to highlight the importance of early relapse as an essential outcome measure. METHODS: The study design was a systematic review of the English literature and meta-analysis of RROs after facelift surgery. RROs that occurred within the first 2 years after surgery were considered "early". Performance, analysis, and reporting were performed in accordance with the PRISMA guidelines. The systematic search was conducted using the PubMed database as of February 2020. Initial screening was performed using the keywords "facelift", "rhytidectomy", "surgical rejuvenation", "face lift", "rhytidoplasty", and "facial rejuvenation". Articles were excluded by using a set of inclusion and exclusion criteria. RESULTS: RROs were reported only in 4.4% (19/433) of the papers that underwent full-text review. The frequency of RROs ranged between 0.2 and 50% among facelift papers. The weighted median rate of RROs after facelift surgery was found to be 2.4% in the meta-analysis. CONCLUSIONS: Future research on preventive measures will be successful upon acknowledgment of the actual prevalence of this problem. Consensus on its definition and objective criteria for its diagnosis are required for further progress. LEVEL OF EVIDENCE III: 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)
Ritidoplastia , Humanos , Estudios Retrospectivos , Ritidoplastia/métodos , Cara , Predicción , Rejuvenecimiento
2.
Aesthet Surg J ; 43(3): 269-286, 2023 02 21.
Artículo en Inglés | MEDLINE | ID: mdl-36342769

RESUMEN

BACKGROUND: Subperiosteal midface lift provides a comprehensive solution to the soft tissue component of midfacial aging. However, midfacial aging also has a skeletal component that is rarely addressed with conventional mid-facelift techniques. Moreover, many of the adverse outcomes after a mid-facelift are closely related to failures and limitations of mid-face fixation. The author's technique was designed to overcome these limitations. OBJECTIVES: The author aimed to describe the rationale, technical details, and outcomes of the author's mid-facelift technique with intraorbital fixation. METHODS: This study was a retrospective review of 82 nonconsecutive cases where the intraorbital fixation mid-facelift was performed by the author between September 2016 and December 2021. Patient data were obtained from patient records and standardized photography. Preoperative differences in mid-face volume were assessed utilizing the Allergan midface volume deficit scale on standardized photography. RESULTS: The average mid-face volume deficit score significantly improved after surgery. Failure of fixation, flat midface deformity, and relapse of mid-face ptosis were not seen in any of the primary patients. Infraorbital hollow did not recur in any of the patients operated on with this technique. None of the primary patients (0/58) in this series developed ectropion or permanent lower eyelid malposition. CONCLUSIONS: Intraorbital fixation mid-face lift is an effective and durable surgical option for the treatment of midfacial aging. The technique is applicable in problem cases such as negative vector patients, negative canthal tilt patients, male patients with large bags, and secondary lower blepharoplasties where conventional techniques tend to fail.


Asunto(s)
Blefaroplastia , Ectropión , Ritidoplastia , Humanos , Masculino , Ritidoplastia/métodos , Blefaroplastia/métodos , Párpados , Ectropión/etiología , Envejecimiento
3.
Aesthet Surg J ; 42(11): 1207-1217, 2022 10 13.
Artículo en Inglés | MEDLINE | ID: mdl-35512707

RESUMEN

BACKGROUND: Retaining ligaments must be fully released for effective soft-tissue mobilization during sub-superficial musculoaponeurotic system (SMAS) facelifts. Standard deep temporal fascia and lateral SMAS fixation techniques may fail earlier than anticipated, which may cause a relapse of facial aging signs. Reconstruction of retaining ligaments was previously proposed to enhance facelift fixation. OBJECTIVES: The author sought to assess the effect of their ligament reconstruction technique on early relapse rates and complication rates. METHODS: This study was a comparative analysis of 188 consecutive facelift cases where retaining ligaments were reconstructed employing the described techniques. A total 104 patients with standard fixation were analyzed in the control group. A novel set of criteria was established for the diagnosis of early relapse after facelift surgery based on the validated Merz scale. RESULTS: Early relapse rate was significantly lower (0.53% vs 5.76%) in the ligament reconstruction group compared with the control group. Ligament reconstruction was associated with an increased rate of temporary nerve paralysis (8.5%). CONCLUSIONS: Sub-SMAS reconstruction of retaining ligaments enhances facelift fixation and reduces the rate of early relapse. Increased risk of temporary neuropraxia is a reasonable trade-off.


Asunto(s)
Ritidoplastia , Sistema Músculo-Aponeurótico Superficial , Cara/cirugía , Humanos , Ligamentos/cirugía , Recurrencia , Ritidoplastia/efectos adversos , Ritidoplastia/métodos , Sistema Músculo-Aponeurótico Superficial/cirugía
4.
Ann Plast Surg ; 86(6): 707-713, 2021 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-32759623

RESUMEN

BACKGROUND: Our aim was to create a new rodent hind limb lymphedema model lacking the fibrosis effect induced by radiotherapy and subjected to the inhibition of lymphangiogenesis via sirolimus (rapamycin) to maintain a chronic lymphedema model and investigate its reliability for human treatment modalities. METHODS: Forty-two Sprague-Dawley rats were randomly assigned to 7 groups: (1) surgery control, (2) vehicle-surgery control, (3) vehicle control, (4) rapamycin control, (5) surgery with 1 mg/kg per day rapamycin, (6) surgery with 1.5 mg/kg per day rapamycin, and (7) surgery with 2 mg/kg per day rapamycin. All surgeries were performed on the right hind limbs, with the left hind limbs also considered as a control. The drug and its solvent were administered daily into the relevant groups intraperiteonally. The presence of lymphedema was investigated by weekly limb circumference measurements, microcomputed tomography, fluorescence lymphography using indocyanine green dye, and microscopic evaluation at the end of the sixth week to determine any histological changes in the hind limbs. RESULTS: In group 1, lymphedema was observed for 2 weeks (P = 0.032), whereas in groups 5, 6, and 7, lymphedema lasted for 3 weeks (P < 0.05.) Fluorescence using indocyanine green revealed that the edema was totally resolved after 6 weeks of surgery by a well-developed superficial lymphatic organization instead of the normal distinct vessel structure. Histologically, groups 1, 5, 5, and 7 demonstrated a significant increase in both the number of macrophages (P < 0.001) and newly formed lymphatic vessels in the right side surgically treated hind limb (P < 0.05). CONCLUSIONS: Despite the extreme surgical destruction and lymphangiogenesis inhibition in the rat model, the sustained lymphedema did not last >3 weeks. Because of the rapid neolymphangiogenesis in murines and a different wound healing mechanism, they should not be considered as an appropriate model for research on human lymphedema in first place.


Asunto(s)
Vasos Linfáticos , Linfedema , Animales , Linfedema/etiología , Linfografía , Ratas , Ratas Sprague-Dawley , Reproducibilidad de los Resultados , Microtomografía por Rayos X
5.
Aesthetic Plast Surg ; 45(5): 2244-2254, 2021 10.
Artículo en Inglés | MEDLINE | ID: mdl-33598741

RESUMEN

BACKGROUND: Reduction rhinoplasties, regardless of the methods used (structural or preservation), can cause a reduction in the internal nasal volume, which may lead to breathing problems. In 1977, Webster proposed preserving a little triangle in the beginning of the lower lateral osteotomy line to prevent breathing problem. However, its importance is still controversial. OBJECTIVES: and methods: This prospective randomized controlled study (level of evidence 1) included 46 patients without nasal breathing problem. High-to-low (Webster's triangle preservation) osteotomy (control group, n = 23) and low-to-low osteotomy (study group, n = 23) were performed. All operations were performed according to the proposed volumetric rhinoplasty steps (examination/measurement, prevention and treatment). Nasal obstruction symptom evaluation (NOSE) test, visual analog scale, acoustic rhinometry, rhinomanometry, peak nasal inspiratory flow (PNIF), and three-dimensional measurements were performed in all patients. Breathing tests were repeated before and 6 months after surgery with and without xylometazoline administration. RESULTS: No statistically significant difference in NOSE and visual analog scale scores was found between the two groups. Acoustic rhinometry, PNIF, and rhinomanometry findings showed no statistically significant breathing difference between the two groups. CONCLUSIONS: In reduction rhinoplasties, a decrease in the internal volume may be expected as directly proportional with the reduction amount. The decrease in the internal volume may create nasal breathing problems. To prevent it, nasal airflow should be adjusted according to new anatomy. In this study, we discussed "volumetric rhinoplasty" steps to prevent breathing problems in reduction rhinoplasty. Following these steps, not preserving Webster's triangle (low-to-low osteotomy) has no effect on the nasal airway. LEVEL OF EVIDENCE II: 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 Table of Contents or the online Instructions to Authors www.springer.com/00266 .


Asunto(s)
Rinoplastia , Estética , Humanos , Tabique Nasal/cirugía , Estudios Prospectivos , Resultado del Tratamiento
6.
Aesthetic Plast Surg ; 45(2): 628-637, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-33037475

RESUMEN

BACKGROUND: The posterior cephalic soft triangle is formed between the posterior cephalic border of the lower lateral cartilage, posterior caudal border of the upper lateral cartilage, and the caudal edge of the nasal bone. PCST is an important component of the external nasal valve which provides resistance against dynamic collapse. OBJECTIVES: The objective of this study was to describe the anatomy of the PCST and to demonstrate its anatomic variations, dynamic interplays, and surgical implications. METHODS: A retrospective review was conducted of 310 primary and 42 secondary cases who underwent extended open approach rhinoplasty by the first author. The structures that create the PCST of the nose were preserved unless resection/displacement of them was absolutely necessary. Whenever an external nasal valve pathology was found, it was corrected with one or combination of the following maneuvers: triangular PCST onlay graft, caudal bone outfracture, alar rim graft, lateral crural strut graft. RESULTS: Twenty-four non-consecutive cases were identified in which PCST was intraoperatively confirmed to be weak or deformed. The most common pathology in the PCST was overresection of the posterior segments of the LLC during primary surgery (54.1%), followed by en bloc medialization of the PCST (33.3%). Triangular onlay grafting of the PCST was the most common corrective surgical intervention (83.3%), followed by corrective lateralization of caudal edge of nasal bone (29.1%). External valve function has been restored in 21 (87.5%) cases. CONCLUSIONS: PCST of the nose is an important anatomic landmark which has esthetic and functional significance in rhinoplasty. 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)
Cartílagos Nasales , Rinoplastia , Estudios de Cohortes , Humanos , Cartílagos Nasales/cirugía , Tabique Nasal/cirugía , Nariz/cirugía , Estudios Retrospectivos , Resultado del Tratamiento
7.
Ann Plast Surg ; 85(3): 245-250, 2020 09.
Artículo en Inglés | MEDLINE | ID: mdl-32332389

RESUMEN

PURPOSE: Although the Oberg-Manske-Tonkin (OMT) classification has been recommended by the International Federation of Societies for Surgery of the Hand owing to some insufficiencies of the Swanson classification system, it has not achieved a universal adoption by hand surgeons. In this study, we hypothesize that the OMT classification can be used easily to classify congenital upper extremity anomalies. We also aim to make epidemiological analysis of congenital upper extremity anomalies with the OMT classification and to compare the applicability of the OMT and the Swanson classifications. METHODS: We retrospectively analyzed 711 patients and 833 extremities operated on between 2012 and 2017. Photographs, plain x-rays, and brief medical histories of the patients were evaluated by 4 plastic surgeons. Two independent evaluations were made by each surgeon in 1-month interval using these classification systems. RESULTS: Total number of upper extremity anomalies recorded was 1050. Of the 711 patients operated on, 122 had bilateral anomalies. The anomalies were identified in 833 extremities because many extremities had more than a single diagnosis. We were able to classify all of the anomalies within the OMT classification. The OMT classification gives better reliability results compared with the Swanson classification according to intrarater and interrater reliabilities. CONCLUSIONS: Compared with the Swanson classification system based on phenotypic evaluation of the extremity, the OMT classification system is easier to apply and the association of the anomaly with the embryologic origin during evaluation is possible. We believe that multiple studies from different centers will boost the international acceptance of the OMT classification.


Asunto(s)
Deformidades Congénitas de las Extremidades Superiores , Humanos , Reproducibilidad de los Resultados , Estudios Retrospectivos , Turquía/epidemiología , Extremidad Superior
8.
Aesthet Surg J ; 40(4): NP114-NP122, 2020 03 23.
Artículo en Inglés | MEDLINE | ID: mdl-31111860

RESUMEN

BACKGROUND: Regardless of the technique chosen to treat the aging midface, the isolated lateral approach facelift has a limited impact on the midface volume deficit. In an effort to overcome this limitation, modern facial rejuvenation procedures incorporate an additional modality for replenishing the midface volume. Some of the author's facelift patients present with bulging buccal fat pads despite volume deficiency in the inframalar region. The author's technique is designed to utilize the buccal fat pad to replenish the inframalar volume deficit. OBJECTIVES: The author sought to present the fat pad transposition surgical technique along with objective outcome data. METHODS: This study was a retrospective review of nonconsecutive cases where the sub-superficial-musculo-aponeurotic-system transposition of the buccal fat pad was performed. A total of 22 patients underwent the fat pad transposition technique by the author (O.B.) between July 2013 and December 2017. Patient data were obtained from patient records, 3-dimensional models, magnetic resonance images, and standardized photography. Preoperative differences in midface volume were assessed utilizing curvilinear surface measurements on 3-dimensional models and the Allergan midface volume deficit scale on standardized photography. RESULTS: The average midface volume deficit score significantly improved, and the average midfacial curvilinear surface measurement significantly increased after surgery. Magnetic resonance imaging confirmed a stable position of the buccal fat pad after surgery. CONCLUSIONS: The sub-superficial-musculo-aponeurotic-system transposition of the buccal fat pad is an effective technique that can be safely employed for autologous inframalar augmentation in patients with a favorable facial morphology.


Asunto(s)
Ritidoplastia , Sistema Músculo-Aponeurótico Superficial , Tejido Adiposo/cirugía , Mejilla/cirugía , Humanos , Estudios Retrospectivos , Sistema Músculo-Aponeurótico Superficial/cirugía
9.
Aesthet Surg J ; 39(1): 29-40, 2019 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-29741560

RESUMEN

Background: Congenital, traumatic, or developmental bony vault deformities may require additional interventions rather than classical osteotomies to correct the surface structure or angulations of the nasal bones in rhinoplasty. Objectives: The aim of the study was to determine the effects of the additional osteotomies applied for the correction of the nasal vault asymmetries retrospectively. Methods: Twenty-one patients among 512 primary rhinoplasty cases between 2011 and 2016 with bony vault asymmetries were included in the study. Three patients had bilateral convex, 6 patients had unilateral convex, and 7 patients had unilateral concave surface deformities. Five patients had concave deformity on one side and convex deformity on the other side. Double-layer lateral osteotomies and caudal transverse osteotomies were conducted for the correction of the severe surface anatomy deformities of the nasal bones. The caudal transverse osteotomy was delicately performed with a special osteotome, which was designed to protect inner periosteum and mucosa of the nasal bone, and to prevent uncontrolled fracture formation with thinned edge. Results: Twenty patients (95.2%) had favorable results with restoration of a symmetric bony and cartilaginous nasal vault configuration. None of the bone fragments showed any rotation or malposition. One (4.8%) patient with a crooked nose had suboptimal dorsal geometry without requiring revisional surgery at the level of the cartilaginous nasal vault. Conclusions: The author described the morphology, clinical relevance, and correction methods of the nasal vault and the changes that occur in this area during rhinoplasty in patients with concave, convex, or combined three-dimensional nasal bone deformities. Level of Evidence: 4.


Asunto(s)
Deformidades Adquiridas Nasales/cirugía , Osteotomía/métodos , Rinoplastia/métodos , Adolescente , Adulto , Estética , Femenino , Humanos , Imagenología Tridimensional , Masculino , Hueso Nasal/anatomía & histología , Hueso Nasal/diagnóstico por imagen , Hueso Nasal/cirugía , Cartílagos Nasales/anatomía & histología , Cartílagos Nasales/diagnóstico por imagen , Cartílagos Nasales/cirugía , Satisfacción del Paciente , Estudios Retrospectivos , Tomografía Computarizada por Rayos X , Resultado del Tratamiento , Adulto Joven
10.
Aesthet Surg J ; 39(5): 481-494, 2019 04 08.
Artículo en Inglés | MEDLINE | ID: mdl-29394311

RESUMEN

BACKGROUND: The junction between upper and lower lateral cartilages, known as "the scroll area," is an important determinant of the spatial relationship between the middle and lower nasal thirds. OBJECTIVES: We offer a graduated and reproducible surgical technique of scroll area management that takes into consideration anatomic, functional, and aesthetic relationships. METHODS: This study was a retrospective review of the recorded intraoperative information to investigate the frequency of the use of scroll reconstruction techniques and perioperative parameters that relate to unintended component alterations in the scroll area. A total of 364 consecutive primary open approach rhinoplasty cases performed by the first author (O.B.) between July 2011 and September 2015 were included in the study. RESULTS: Of the 364 cases who underwent primary open approach rhinoplasty, 329 received some form of scroll reconstruction. Scroll reconstruction was performed in all deviated cases, and 88% of straight noses. The most common technique for scroll reconstruction was overlapping repair (88.3%). As expected, both alar rim and alar crease asymmetries were very frequent in the deviated nose group, 89.4% and 75% respectively. Alar rim and alar crease asymmetries were frequent enough in the straight nose group to deserve special attention, 14.2% and 10.4% respectively. CONCLUSIONS: With careful attention to anatomic details of the scroll area, nasal tip refinements can be performed with predictable safety and accuracy. Our approach is a graduated, reproducible, and individualized way of scroll area management that aims to create the ideal cartilage configuration while preventing unintended component alterations.


Asunto(s)
Cartílagos Nasales/cirugía , Rinoplastia/métodos , Adolescente , Adulto , Estética , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos
11.
Aesthet Surg J ; 39(2): 137-147, 2019 01 17.
Artículo en Inglés | MEDLINE | ID: mdl-29788312

RESUMEN

Background: The effect of a spreader flap on the keystone area and the upper bony vault depends on the structural strength and cephalic extent of upper lateral cartilages, both of which can be significantly variable among individuals. Objectives: The authors present a novel cephalically extended osseocartilaginous composite spreader flap technique that was designed to overcome the limitations of a conventional spreader flap on the keystone area upper bony vault, in patients with cephalically short and structurally weak upper lateral cartilages and thin nasal bones. Methods: This study was a retrospective review of the recorded perioperative information to investigate the frequency of the use of the composite spreader flap technique and perioperative parameters that relate to postoperative dorsal deformities. One-hundred-seventy-six consecutive primary open approach rhinoplasty cases performed by the first author (O.B.) between November 2015 and February 2017 were included in the study. Patient data were obtained from rhinoplasty data sheets, standardized photographs, and postoperative physical examinations. Results: Of the 176 cases who underwent primary open approach rhinoplasty whose data were reviewed for the purpose of this study, 38 (32 females, 6 males) had dorsal reconstruction with the use of a composite spreader flap. Seventeen patients had a deviated nose with an asymmetric bony pyramid. In 8 patients, the composite spreader flap was used unilaterally. No patients in the composite spreader flap group had a postoperative dorsal deformity or required surgical revision. Conclusions: Composite flap preparation extends the reliability and the reach of the spreader flap technique beyond its previous borders.


Asunto(s)
Hueso Nasal/trasplante , Cartílagos Nasales/trasplante , Rinoplastia/métodos , Colgajos Quirúrgicos/trasplante , Adolescente , Adulto , Estética , Estudios de Factibilidad , Femenino , Humanos , Masculino , Deformidades Adquiridas Nasales/epidemiología , Deformidades Adquiridas Nasales/etiología , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Reoperación/estadística & datos numéricos , Reproducibilidad de los Resultados , Estudios Retrospectivos , Rinoplastia/efectos adversos , Resultado del Tratamiento , Adulto Joven
12.
J Craniofac Surg ; 29(7): 1947-1951, 2018 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-30204725

RESUMEN

Composite scalp and cranium defects, which require microsurgical reconstruction, result from tumor resection, radiation, trauma, severe burn injuries, and rarely vasculitic disorders. In the current study, the authors aim to compare the outcomes of the fasciocutaneous flaps and musculocutaneous free flaps used for the reconstruction of extensive composite scalp and cranium defects. From 2010 to 2017, 21 patients who underwent composite scalp and cranium defect reconstruction with a free flap were retrospectively identified. Eighteen patients had squamous cell carcinoma, 2 patients had meningioma, and 1 patient had Ewing sarcoma. Thirteen musculocutaneous free flaps including latissimus dorsi and vertical rectus abdominis flaps and 9 free fasciocutaneous flaps including radial forearm and anterolateral thigh flaps were used. Only 1 flap loss was encountered. No neurologic impairment in postoperative period was reported. The mean length of stay in the hospital, the duration of surgery, and total volume of blood transfusion for the fasciocutaneous flap group were significantly shorter than those for musculocutaneous flap group. No flap atrophy was reported in fasciocutaneous flap group. Reconstruction of the composite scalp and cranium defects with fasciocutaneous free flaps allows shorter hospitalization, less blood transfusion and less flap atrophy than those of musculocutaneous flaps. To this respect, their usage should be prioritized in such challenging patients.


Asunto(s)
Fascia/trasplante , Colgajos Tisulares Libres/trasplante , Colgajo Miocutáneo/trasplante , Procedimientos de Cirugía Plástica/métodos , Cuero Cabelludo/cirugía , Cráneo/cirugía , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Transfusión Sanguínea , Femenino , Humanos , Tiempo de Internación , Masculino , Persona de Mediana Edad , Tempo Operativo , Complicaciones Posoperatorias , Procedimientos de Cirugía Plástica/efectos adversos , Estudios Retrospectivos , Adulto Joven
13.
J Reconstr Microsurg ; 34(5): 307-314, 2018 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-28340490

RESUMEN

BACKGROUND: Reconstruction of craniofacial bone defects is a primary focus of craniofacial surgery. Although autogenous bone grafts remain as the gold standard, alloplastic materials have also gained widespread popularity due to their off-the-shelf availability, ease of use, and durability. In addition to replacing the missing bone, some of these alloplastic materials have also been found to induce new bone formation. OBJECTIVES: In this study, the phenomenon of neo-osseous induction with bioactive glass was investigated for different implant-soft tissue configurations. MATERIALS AND METHODS: Thirty-two male, Wistar albino rats were divided into four equally numbered study groups. In group 1 (FP), adipofascial groin flaps were prefabricated with free periosteal grafts. In group 2 (FPB), adipofascial groin flaps were prefabricated with free periosteal grafts and bioactive glass. In group 3 (FB), adipofascial groin flaps were prefabricated with bioactive glass. In group 4 (control), adipofascial groin flaps were not prefabricated. Morphometric analyses of the prefabricated structures were performed using micro-CT. The histologic properties of the ectopic ossification were assessed by using a modified scoring system. RESULTS: Group 1 (FP) showed the greatest rate of mature lamellar bone formation. Group 2 (FBP) showed the greatest amount of bone density and volume. However, the addition of bioactive glass in group 2 (FBP) decreased the rate of mature lamellar bone formation when compared with group 1 (FP). Ectopic ossification was not observed in the control group. CONCLUSION: Bioactive glass can be successfully used in the prefabrication of vascularized compound structures for the reconstruction of complex bone defects. However, interference with the periosteal induction of mature lamellar bone formation should be taken into consideration, especially in pediatric bone defects, which primarily rely on spontaneous osteogenesis through periosteal induction.


Asunto(s)
Trasplante Óseo/métodos , Cerámica , Periostio/trasplante , Colgajos Quirúrgicos/trasplante , Animales , Bioingeniería/métodos , Biopsia con Aguja , Terapia Combinada , Modelos Animales de Enfermedad , Supervivencia de Injerto , Inmunohistoquímica , Masculino , Neovascularización Fisiológica , Prótesis e Implantes , Distribución Aleatoria , Ratas , Ratas Wistar
14.
Microsurgery ; 37(5): 442-450, 2017 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-28319277

RESUMEN

BACKGROUND: Prolonged mean life expectancy gives rise to a more populated and older patient group. With increasing number of cases during the past decades, older patients are regarded as candidates for microsurgical interventions. Whether advanced patient age is an independent risk factor for microsurgical reconstruction is still an ongoing matter of debate. METHODS: The Cochrane Central Register of Controlled Trials, PubMed, MEDLINE, CINAHL and EMBASE databases were screened for combination of the key words "elderly", "geriatric", "advanced age", "free flap", "microsurgery", free tissue transfer" by using time limits between 1989 and 2015. RESULTS: According to results of the meta-analysis, there was no significant difference in the flap success rates(P =.39, CI = 0.848 to 2.329) and surgical complication rates (P = .83, CI = 0.792 to 1.163) between the young and elderly patient groups. However, the systemic complication rates(P = .02, CI = 1.468 to 3.572), preoperative ASA scores(P < .0001, CI = 0.342 to 1.078), and mortality rates (P = .03, CI = 2.636 to 9.055) were found to be significantly higher in the elderly patients. CONCLUSIONS: Although an increased rate of systemic complications and mortality has been associated with advanced age, our study results showed no significant difference between the flap success rates and surgical complications. A successful reduction in systemic complications would bring the risk level of reconstructive microsurgical interventions of the elderly patient group to the level of the young patient group. © 2017 Wiley Periodicals, Inc. Microsurgery 37:442-450, 2017.


Asunto(s)
Colgajos Tisulares Libres/trasplante , Microcirugia/métodos , Procedimientos de Cirugía Plástica/métodos , Complicaciones Posoperatorias/etiología , Factores de Edad , Anciano , Anciano de 80 o más Años , Humanos , Modelos Estadísticos , Complicaciones Posoperatorias/mortalidad , Complicaciones Posoperatorias/prevención & control , Factores de Riesgo
15.
J Craniofac Surg ; 28(3): 659-663, 2017 May.
Artículo en Inglés | MEDLINE | ID: mdl-28468144

RESUMEN

Reconstruction of a midfacial defect can represent a difficult challenge for the plastic surgeon. Although many midfacial deformities have traumatic or congenital origins, the vast majority of head and neck defects occur after resection of malignant head and neck neoplasms. Autogenous reconstruction is now routinely performed for larger, complex defects resulting from surgical resection or trauma. In this study, the authors present 27 patients with midfacial defects reconstructed with free flaps. Twenty-two of the defects were created by surgical ablation of cancer (maxillectomy) and the others were traumatic. The maxillectomy defects were classified into 4 according to the classification proposed by Cordeiro. Eighteen of the patients were male and 9 were female. Twenty-nine free flaps were performed. Six different types of flaps including radial forearm flap, vertical rectus abdominis (VRAM) flap, anterolateral thigh (ALT) flap, tensor fasciae latae (TFL) flap, fibula osteocutaneous flap, and iliac osteocutaneous flap were accomplished. Types I and II defects were reconstructed with radial forearm flap. Type III defects were reconstructed with VRAM and ALT. Type IV defects were reconstructed with VRAM and TFL. Two patients underwent a second flap reconstruction due to recurrent disease (9.1%). Average patient age was 53.1 years. Free-flap survival was 100%. Free tissue transfer is the method of choice in midfacial reconstruction. Following a reconstructive algorithm is useful in the decision-making process for patient evaluation and treatment. Every reconstructive microsurgeon might have different experiences with different flaps. Therefore, the algorithm for flap choices is not universal among surgeons.


Asunto(s)
Fosa Craneal Anterior/cirugía , Traumatismos Faciales/cirugía , Neoplasias Faciales/cirugía , Colgajos Tisulares Libres/irrigación sanguínea , Maxilar/cirugía , Microcirugia/métodos , Procedimientos de Cirugía Plástica/métodos , Colgajos Quirúrgicos/irrigación sanguínea , Colgajos Quirúrgicos/cirugía , Trasplantes/irrigación sanguínea , Trasplantes/cirugía , Adulto , Anciano , Huesos Faciales/cirugía , Femenino , Estudios de Seguimiento , Neoplasias de Cabeza y Cuello/cirugía , Humanos , Ilion/cirugía , Masculino , Persona de Mediana Edad , Recto del Abdomen/trasplante , Adulto Joven
16.
Aesthetic Plast Surg ; 40(5): 690-8, 2016 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-27357632

RESUMEN

BACKGROUND: Postoperative changes following superior pedicle breast reduction are closely related to the pattern of skin resection. We have observed that the superior pedicle, short horizontal scar breast reduction technique provides a stable breast shape in the long term. We test the validity of our clinical observations through objective analysis of postoperative dimensional changes following superior pedicle, short horizontal scar breast reduction. METHODS: Of 42 patients who underwent superior pedicle, short horizontal scar breast reductions between January 2011 and June 2012, 38 (75 breasts) were available for long-term follow-up. The midclavicular point-to-superior areolar border distance (A), the inferior areolar border-to-inframammary fold (IMF) distance (B), and the areolar diameter (C) were measured and recorded at the time of (1) preoperative markings, (2) first postoperative visit, and (3) 2-year postoperative follow-up visit. The specifications of the preoperative markings were recorded to analyze their correlation with actual breast dimensions. RESULTS: The superior border of the nipple-areola complex (NAC) was located, on average, 1.2 cm higher at the first postoperative visit when compared with the markings (P < 0.001). The nipple-areola position did not change significantly in the long term (P = 0.224). The average postoperative increase in the IMF-to-inferior areolar border distance between the first postoperative visit and the long-term follow-up visit was 0.3 cm (P < 0.001). Although statistically significant, this extent of change (4.5 %) in the lower pole vertical length was clinically unidentifiable, and pseudoptosis did not occur after superior pedicle, short horizontal scar mammaplasty. CONCLUSION: Long-term stability of the NAC position and lower breast pole length makes superior pedicle, short horizontal scar breast reduction a predictable and dependable option for primary breast reduction/mastopexy and for a matching procedure. 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)
Cicatriz/prevención & control , Mamoplastia/efectos adversos , Colgajos Quirúrgicos/trasplante , Cicatrización de Heridas/fisiología , Adulto , Mama/anatomía & histología , Estudios de Cohortes , Estética , Femenino , Estudios de Seguimiento , Humanos , Mamoplastia/métodos , Persona de Mediana Edad , Pezones/anatomía & histología , Posicionamiento del Paciente , Cuidados Posoperatorios/métodos , Cuidados Preoperatorios/métodos , Estudios Retrospectivos , Técnicas de Sutura , Resultado del Tratamiento , Adulto Joven
18.
J Reconstr Microsurg ; 32(8): 587-93, 2016 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-27303936

RESUMEN

Background Reconstruction of complex pharyngoesophageal defects presents a major challenge, particularly in soft tissue deficient and previously scarred surgical sites. In recent years, the free jejunum flap method has emerged as a reliable means of esophageal reconstruction. However, it may require cutaneous coverage with an additional flap in extensively scarred, secondary reconstructions. Prefabrication of an intestinal/cutaneous composite flap can potentially solve this problem. Materials and Methods Total 28 Sprague Dawley rats were used in the study protocol. A vascularized jejunal segment was transposed beneath the deep inferior epigastric perforator (DIEP) flap. Contact with underlying abdominal fascia was prevented using a silicone sheet. Animals were distributed into five groups based on the timing of deep inferior epigastric vessel ligation to determine the time required for successful revascularization. The viability and the vascular anatomy of the prefabricated structures were analyzed using histology and microangiography. Results A jejunum/DIEP composite flap was successfully prefabricated based on mesenteric vessels. The skin component survived intact after 5 days of contact with serosal surface of the jejunal segment. Conclusion The clinical application of this technique can provide an alternative means of single-stage esophageal reconstruction, especially in patients with soft tissue deficiency and donor vessel unavailability.


Asunto(s)
Colgajos Tisulares Libres/irrigación sanguínea , Yeyuno/trasplante , Microcirculación/fisiología , Colgajo Perforante/irrigación sanguínea , Angiografía , Animales , Modelos Animales de Enfermedad , Arterias Epigástricas , Supervivencia de Injerto , Yeyuno/irrigación sanguínea , Microcirugia , Neovascularización Fisiológica , Ratas , Ratas Sprague-Dawley , Flujo Sanguíneo Regional/fisiología
20.
J Craniofac Surg ; 26(4): 1299-303, 2015 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-26080180

RESUMEN

BACKGROUND: Basal and squamous cell carcinomas are the most common malignant cutaneous lesions affecting the nose. With the rising incidence of skin cancers, plastic surgeons increasingly face nasal reconstruction challenges. Although multiple options exist, optimal results are obtained when "like is used to repair like". We aimed to introduce a simple algorithm for the reconstruction of nasal defects with local flaps, realizing that there is always more than one option for reconstruction. PATIENTS AND METHODS: We retrospectively reviewed 163 patients who underwent nasal reconstruction after excision of non-melanoma skin cancer between March 2011 and April 2014. We analyzed the location of the defects and correlated them with the techniques used to reconstruct them. RESULTS: There were 66 males and 97 females (age, 21-98 years). Basal cell carcinoma was diagnosed in 121 patients and squamous cell carcinoma in 42. After tumor excision, all the defects were immediately closed by either primary closure or local flap options such as Limberg, Miter, glabellar, bilobed, nasolabial, V-Y advancement, and forehead flaps. CONCLUSIONS: Obtaining tumor-free borders and a pleasing aesthetic result are major concerns in nasal reconstruction. Defect reconstruction and cosmesis are as important as rapid recovery and quick return to normal daily activities, and these should be considered before performing any procedure, particularly in elderly patients.


Asunto(s)
Carcinoma de Células Escamosas/cirugía , Neoplasias Nasales/cirugía , Rinoplastia/métodos , Neoplasias Cutáneas/cirugía , Piel/patología , Colgajos Quirúrgicos , Adulto , Anciano , Anciano de 80 o más Años , Biopsia , Carcinoma de Células Escamosas/patología , Femenino , Humanos , Masculino , Melanoma , Persona de Mediana Edad , Neoplasias Nasales/patología , Estudios Retrospectivos , Neoplasias Cutáneas/patología , Adulto Joven
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA