Preferencias de uso de implantes mamarios entre los miembros de la Asociación Española de Cirugía Estética Plástica: encuesta 2019 / Breast implants preferences among members of the Spanish Association of Aesthetic Plastic Surgery: 2019 survey

INTRODUCCIÓN Y OBJETIVO: Últimamente ha surgido gran controversia sobre diversos aspectos de los implantes mamarios. De hecho, la posible relación entre la texturación del implante y el linfoma anaplásico de células grandes llevó a la retirada voluntaria del mercado de los implantes con cubierta Biocell(R) de Allergan en julio de 2019. El propósito principal de este estudio fue evaluar las preferencias y prácticas habituales de los miembros de la Asociación Española de Cirugía Plástica Estética (AECEP) con respecto a la cirugía con implantes mamarios. Además, analizamos los cambios en la práctica clínica experimentados desde la encuesta publicada en 2016. MATERIAL Y MÉTODO: Llevamos a cabo una encuesta con 15 preguntas relativas a la selección y diferentes aspectos clínicos relacionados con el aumento mamario, en diciembre del año 2019 entre los miembros de la AECEP. Por otro lado, hacemos un estudio comparativo entre los datos actuales y los obtenidos en la encuesta publicada en el año 2017. RESULTADOS: Los 146 miembros de la AECEP recibieron una invitación a participar en la encuesta, de los cuales respondieron 74 (50.7%). De las respuestas obtenidas, 50 (67.6%) correspondieron a hombres. El 89.2% (n=66) tenían una experiencia profesional superior a 10 años y un 70.2% (n=52) tenían una edad comprendida entre los 46 y los 65 años. Respecto al tipo de implante, un 52.7% (n=39) mostró preferencia por los implantes microtexturizados redondos y un 47.3% (n=35) prefirió los microtexturizados anatómicos. En comparación con la encuesta del 2017, una proporción significativamente mayor de participantes prefirió los implantes microtexturizados redondos y microtexturizados anatómicos (p = 0.0025 y p = 0.0015 respectivamente). Por el contrario, una proporción significativamente menor prefirió el uso de implantes macrotexturizados redondos (p = 0.0018) y macrotexturizados anatómicos (p < 0.0001). El plano submuscular fue de elección para el 44.6% de los participantes (n=33). La contractura capsular grado III/IV fue la principal indicación de capsulectomia total para el 94.5% (n=70). La mayor parte fueron partidarios de una actitud vigilante en pacientes con implantes con cubierta Biocell(R) (n=68, 93.1%). El 85.1% (n=63) recomendó vigilancia con técnicas de imagen y sólo 19 participantes (25.7%) fueron partidarios de prohibir el uso de implantes macrotexturizados. CONCLUSIONES: Los resultados de esta encuesta muestran un cambio significativo en la práctica clínica habitual de los encuestados. Respecto a 2017 se ha producido un incremento significativo en el uso de implantes mamarios lisos/nanotexturizados y microtexturizados, mientras que se ha reducido, de forma significativa, el uso de implantes mamarios macrotexturizados

BACKGROUND AND OBJECTIVE: Over the last several years there has been great controversy about different aspects related to breast implants. In fact, the potential relationship between implant texture and anaplastic large cell lymphoma led to the voluntary recall of Biocell(R) coated implants (Allergan(R)) in July 2019. The main purpose of this study was to evaluate the preferences and daily practice of members of Spanish Association of Aesthetic Plastic Surgery (AECEP) regarding to breast implant surgery. Additionally, we assessed possible changes experienced in clinical practice since our survey published in 2017. METHODS: A 15 questions survey, regarding to the selection and different clinical aspects related to breast augmentation, was carried out between January and March 2019 among AECEP members. In addition, a comparative study between current data and those reported in 2017 survey was conducted. RESULTS: The 146 members of the AECEP received an invitation to participate in the survey, of whom 74 (50.7%) responded to it. Of the responses obtained, 67.6% (n=50) corresponded to men, 89.2% (n=66) had more than 10 years of professional experience and 70.2% (n=52) had an age between 46 and 65 years. Regarding the type of implant, 52.7% (n=39) showed a preference for round microtextured implants and 47.3% (n=35) preferred anatomical microtextured implants. Compared to the 2017 survey, a significantly greater proportion of participants preferred round microtextured and anatomical microtextured implants (p = 0.0025 and p = 0.0015, respectively). In contrast, a significantly lower proportion preferred the use of round macrotextured implants (p = 0.0018) and anatomical macrotextured ones (p <0.0001). The submuscular plane was of choice for 44.6% (n=33). Grade III / IV capsular contracture was the main indication for total capsulectomy for 94.5% (n=70). Most of participants ( 93.1%, n=68) were in favor of a vigilant attitude in patients with Biocell(R)-coated implants. 85.1% (n=63) recommended surveillance with imaging techniques and only 25.7% (n=19) thought that the use of macro-textured implants must be prohibited. CONCLUSIONS: The results of this survey showed a significant change in the current clinical practices among the participants. Comparing with 2017 survey, there has been a significant increase in the use of smooth / nano-textured and microtextured breast implants, while the use of macro-textured breast implants has been significantly reduced

International classification of abdominal wall planes (ICAP) to describe mesh insertion for ventral hernia repair.

BACKGROUND: Nomenclature for mesh insertion during ventral hernia repair is inconsistent and confusing. Several terms, including 'inlay', 'sublay' and 'underlay', can refer to the same anatomical planes in the indexed literature. This frustrates comparisons of surgical practice and may invalidate meta-analyses comparing surgical outcomes. The aim of this study was to establish an international classification of abdominal wall planes. METHODS: A Delphi study was conducted involving 20 internationally recognized abdominal wall surgeons. Different terms describing anterior abdominal wall planes were identified via literature review and expert consensus. The initial list comprised 59 possible terms. Panellists completed a questionnaire that suggested a list of options for individual abdominal wall planes. Consensus on a term was predefined as occurring if selected by at least 80 per cent of panellists. Terms scoring less than 20 per cent were removed. RESULTS: Voting started August 2018 and was completed by January 2019. In round 1, 43 terms (73 per cent) were selected by less than 20 per cent of panellists and 37 new terms were suggested, leaving 53 terms for round 2. Four planes reached consensus in round 2, with the terms 'onlay', 'inlay', 'preperitoneal' and 'intraperitoneal'. Thirty-five terms (66 per cent) were selected by less than 20 per cent of panellists and were removed. After round 3, consensus was achieved for 'anterectus', 'interoblique', 'retro-oblique' and 'retromuscular'. Default consensus was achieved for the 'retrorectus' and 'transversalis fascial' planes. CONCLUSION: Consensus concerning abdominal wall planes was agreed by 20 internationally recognized surgeons. Adoption should improve communication and comparison among surgeons and research studies.

ANTECEDENTES: La nomenclatura de la inserción de una malla para la reparación de una hernia incisional ventral (ventral hernia, VH) es inconsistente y confusa. En la literatura indexada se usan varios términos, tales como 'inlay', 'sublay', y 'underlay' que pueden referirse a los mismos planos anatómicos. Este hecho frustra las comparaciones de técnicas quirúrgicas e invalida los metaanálisis que comparan resultados quirúrgicos en función del plano de inserción de la malla. En consecuencia, el objetivo de este estudio fue establecer una clasificación internacional de los planos de la pared abdominal (International Classification of Abdominal Wall Planes, ICAP). MÉTODOS: Se realizó un estudio Delphi, en el que participaron 20 cirujanos de pared abdominal reconocidos internacionalmente. Se identificaron diferentes términos que describían los planos de la pared abdominal anterior mediante la revisión de la literatura y el consenso de expertos. La lista inicial incluía 59 términos posibles. Los panelistas completaron un cuestionario que sugería una lista de opciones para los planos individuales de la pared abdominal. El consenso sobre un término fue predefinido cuando dicho término había sido seleccionado por ≥ 80% de panelistas. Se eliminaron los términos con una puntuación < 20%. RESULTADOS: La votación comenzó en agosto de 2018 y se completó en enero de 2019. Durante la Ronda 1, 43 (73%) términos fueron seleccionados por < 20% de los panelistas y se sugirieron 37 términos nuevos, dejando 53 términos para la Ronda 2. Cuatro planos alcanzaron un consenso en la Ronda 2 con los términos 'onlay', 'inlay', 'pre-peritoneal' e 'intra-peritoneal'. Treinta y cinco (66%) términos fueron seleccionados por < 20% de los panelistas y fueron eliminados. Después de la Ronda 3, se logró un consenso para 'anterectus' (ante-recto), 'interoblique' (inter-oblicuo), 'retrooblique' (retro-oblicuo) y 'retromuscular'. Se alcanzó un consenso por defecto para los planos 'retrorectus' (retro-recto) y 'transversalis fascial' (fascial transverso). CONCLUSIÓN: La ICAP ha sido desarrollada por el consenso de 20 cirujanos reconocidos internacionalmente. Su implementación debería mejorar la comunicación y la comparación entre cirujanos y estudios de investigación.

Three-Dimensional Optical Coherence Tomography Imaging For Glaucoma Associated With Boston Keratoprosthesis Type I and II.

PRECIS: Three-dimensional (3D) spectral domain optical coherence tomography (OCT) volume scans of the optic nerve head (ONH) and the peripapillary area are useful in the management of glaucoma in patients with a type I or II Boston Keratoprosthesis (KPro). PURPOSE: The purpose of this study was to report the use of spectral domain OCT in the management of glaucoma in patients with a type I or II Boston KPro. MATERIALS AND METHODS: This study is an observational case series. Four consecutive patients with KPro implants were referred for glaucoma evaluation. A comprehensive eye examination was performed which included disc photography, visual field testing, and high-density spectral domain OCT volume scans of the ONH and the peripapillary area. 2D and 3D parameters were calculated using custom-designed segmentation algorithms developed for glaucoma management. RESULTS: Spectral domain OCT parameters provided useful information in the diagnosis and management of 4 KPro patients. OCT parameters which can be used in KPro patients included 2D retinal nerve fiber layer (RNFL) thickness, 3D peripapillary RNFL volume, 3D peripapillary retinal thickness and volume, 3D cup volume, and 3D neuroretinal rim thickness and volume. In 3 of 4 cases where the traditional 2D RNFL thickness scan was limited by artifacts, 3D spectral domain OCT volume scans provided useful quantitative objective measurements of the ONH and peripapillary region. Therefore, 3D parameters derived from high-density volume scans as well as radial scans of the ONH can be used to overcome the limitations and artifacts associated with 2D RNFL thickness scans. CONCLUSIONS: Spectral domain OCT volume scans offer the possibility to enhance the evaluation of KPro patients with glaucoma by using both 2D and 3D diagnostic parameters that are easily obtained in a clinic setting.

Experience of left atrial appendage occlusion with the WATCHMAN device in Chinese patients.

OBJECTIVE: Little is known about left atrial appendage occlusion (LAAO) with WATCHMAN device in patients with atrial fibrillation (AF) in China. The aim of the present study was to evaluate the acute procedural performance and complication rate of LAAO procedures and patient selection in China. METHODS: A total of 658 consecutive Chinese patients who were referred to receive LAAO procedures with the WATCHMAN device between 2014 and 2017 were retrospectively included in the study. Patients were divided into four groups according to the year of procedures: Group 2014, Group 2015, Group 2016, and Group 2017. The procedural success, complication rates, and characteristics of Chinese patients, as well as the trends of patients' selection and management, were analyzed. RESULTS: The average age of the patients was 67.7+-9.2 years, the CHA2DS2-VASc score was 3.7+-1.6, and the HAS-BLED score was 2.5+-1.1. Both scores of patients in different years show obvious increasing trends (r=0.126, p=0.001 and r=0.145, p<0.001, respectively). Indications for LAAO included increased bleeding risk (45.6%), recent bleeding under oral anticoagulation (OAC) (9.0%), and non-compliance with OAC (51.4%). The implantation was successful in 643 (97.7%) patients, with a procedural complication rate of 0.6%. Approximately 80.1% of the patients received OAC after LAAO. CONCLUSION: In China, LAAO with WATCHMAN devices in patients with AF can be performed successfully with a low complication rate. Most of the target population had increased bleeding risk or non-compliance for OAC as indications and received OAC for antithrombotic therapy after the procedure.

Guía clínica sobre implantes de conducción de vía ósea / Clinical guideline on bone conduction implants

Introducción y objetivos: En la última década se han producido numerosos y relevantes avances en el tratamiento de la hipoacusia transmisiva y mixta que han desembocado en una ampliación de las indicaciones de los implantes de conducción de vía ósea y la aparición de nuevos dispositivos. La Comisión Científica de Audiología de la Sociedad Española de Otorrinolaringología y Cirugía de Cabeza y Cuello (SEORL-CCC), junto con las comisiones de Otología y Otoneurología, ha llevado a cabo una revisión del estado actual de los implantes de vía ósea con la finalidad de ofrecer a los especialistas de Otorrinolaringología, a los profesionales de la sanidad, a las autoridades sanitarias y a la sociedad en general una guía clínica sobre implantes de conducción de vía ósea. Métodos: Esta guía clínica sobre implantes de conducción ósea contiene información sobre los siguientes temas: 1) definición y descripción de los implantes auditivos de vía ósea; 2) indicaciones actuales y emergentes de los implantes de vía ósea; compatibilidad y resonancia magnética, y 3) requisitos organizativos para un programa de implantes de vía ósea. Resultado y conclusiones: La finalidad de esta guía es describir los diferentes sistemas de conducción ósea, sus particularidades e indicaciones, con el objeto de aportar unas coordenadas que ayuden a todos estos agentes en las tomas de decisiones que deban asumir en los diferentes ámbitos de responsabilidad en los que están enmarcados en sus áreas de trabajo

Introduction and goals: During the last decade there have been multiple and relevant advances in conduction and mixed hearing loss treatment. These advances and the appearance of new devices have extended the indications for bone-conduction implants. The Scientific Committee of Audiology of the Sociedad Española de Otorrinolaringología y Cirugía de Cabeza y Cuello SEORL-CCC (Spanish Society of Otolaryngology and Head and Neck Surgery), together with the Otology and Otoneurology Committees, have undertaken a review of the current state of bone-conduction devices with updated information, to provide a clinical guideline on bone-conduction implants for otorhinolaryngology specialists, health professionals, health authorities and society in general. Methods: This clinical guideline on bone-conduction implants contains information on the following: 1) Definition and description of bone-conduction devices; 2) Current and upcoming indications for bone conduction devices: Magnetic resonance compatibility; 3) Organization requirements for a bone-conduction implant programme. Results and conclusions: The purpose of this guideline is to describe the different bone-conduction implants, their characteristics and their indications, and to provide coordinated instructions for all the above-mentioned agents for decision making within their specific work areas

Medical Devices; Ear, Nose, and Throat Devices; Classification of the Active Implantable Bone Conduction Hearing System. Final order.

The Food and Drug Administration (FDA or we) is classifying the active implantable bone conduction hearing system into class II (special controls). The special controls that apply to the device type are identified in this order and will be part of the codified language for the active implantable bone conduction hearing system's classification. We are taking this action because we have determined that classifying the device into class II (special controls) will provide a reasonable assurance of safety and effectiveness of the device. We believe this action will also enhance patients' access to beneficial innovative devices, in part by reducing regulatory burdens.

Degeneración estructural precoz de la prótesis aórtica Mitroflow: ¿cambiará algo con el nuevo tratamiento anticalcificante? Respuesta / Early structural valve deterioration of the Mitroflow aortic bioprosthesis: will the new anticalcification treatment change anything? Response

No disponible

[Comparative analysis of corneal aberrations after intrastromal segments and MyoRing implantation using femtosecond laser in patients with keratoconus]. / Sravnitel'nyi analiz rogovichnykh aberratsii posle femtolazernoi implantatsii intrastromal'nykh segmentov i kolets pri keratokonuse.

AIM: to comparatively analyze corneal aberrations after intrastromal corneal segments (ICS) and MyoRing implantation using femtosecond laser in patients with stage II-III keratoconus (KC) by Pentacam examination. MATERIAL AND METHODS: We have operated on 135 patients (145 eyes) with stage II or III KC. Depending on surgical technique, all patients were divided into two groups. Group I consisted of patients with KC, who received optimized femtosecond laser-assisted MyoRing implantation, group II - of those, who received femtosecond laser-assisted ICS implantation. Depending on the stage of the disease, each group was further divided into two subgroups, for stage II and stage III KC, respectively. Before and after surgery, all patients underwent visometry, biomicroscopy, corneal topography, and corneal aberrations measurement under photopic and mesopic conditions on Pentacam. The follow-up period averaged 30 months (from 6 to 34 months). RESULTS: In both groups corneal aberrations significantly decreased after surgery, which was confirmed by an improvement in parameters of refraction and keratometry readings. CONCLUSION: Implantation of intrastromal MyoRings leads to a greater reduction in the total corneal aberration, higher-order aberrations under photopic and mesopic conditions, and spherical aberration under photopic conditions as compared to ICS in patients with stage III KC; a comparable reduction in the total corneal, higher-order, and spherical aberrations under photopic conditions as compared to ICS in patients with stage II KC; a comparable increase in spherical aberration under mesopic conditions as compared to ICS in patients with stage III KC.

Soft and Firm Alloplastic Implants in Rhinoplasty: Why, When and How to Use Them: A Review of 311 Cases.

BACKGROUND: Modern rhinoplasty is not just a reduction procedure. An optimal nasal esthetic result occasionally requires augmenting the nasal tip, the dorsum or the lateral wall with autografts or alloplasts. A large number of nasal implant types have been reported in the medical literature. OBJECTIVE: The goal of this article is to demystify the role and indications of nasal implants in rhinoplasty. As well, it offers both the novice and experienced nasal surgeon a basic, simplified and organized approach to the use of soft and firm nasal implants in rhinoplasty. METHODS: This article presents the authors experience with 311 rhinoplasties using both soft and firm alloplastic implants. The indications for both types of alloplasts are discussed, the surgical technique detailed and the outcomes analyzed. RESULTS: A total of 311 nasal implant cases were reviewed. This series revealed a low incidence of postoperative infection (5.57% for soft implants and 0.1% for the firm ones). The revision rate was 2.7% for the soft implants group and 7.1% for the firm implants group. 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 .

[A modified implant for upper eyelid ptosis correction in frontalis suspension surgery]. / Primenenie modifitsirovannogo implantata dlia ustraneniia ptoza verkhnego veka podveshivaniem.

AIM: to develop a modified implant to correct ptosis through brow suspension and to evaluate its effectiveness. MATERIAL AND METHODS: The clinical group consisted of 20 patients (29 eyes) aged 23 to 69 years (45±5.3 years on the average) and the comparison group - of 20 patients (33 eyes) aged 19 to 77 years (47±9.5 years on the average). All patients were operated on for severe ptosis of the upper eyelid, which implied stitching their eyelids to the eyebrows. In the main group, an original implant was introduced as suspensory material - a 200 µm thick porous polytetrafluoroethylene tape, length 13 cm, width 6 mm, round staggered perforation pattern, 1.5 mm holes, 3.5 mm pitch. In the comparison group, Mersilene mesh strips were used. The article contains a detailed description of the surgical technique. Checkups were performed at 1, 6, and 12 months. Follow-up periods were up to 4 years (1.7 years on the average) in the main group and up to 7 years (5.1 years on the average) - in the controls. RESULTS: Were evaluated by the width of the palpebral fissure at raised eyebrows, marginal reflex distance (MRD, which is the distance between the center of the pupil and the upper eyelid margin), presence and depth of the upper eyelid crease, and residual lagophthalmos. Examinations held at months 1, 6, and 12 after surgery showed that the results were positive and stable in all cases. Neither signs of recurrence, nor statistically significant differences between the groups were found. CONCLUSION: The use of the original modified implant during frontalis suspension surgery provides high and stable cosmetic result and expands the possibilities of ophthalmic plastic surgery.

Medical Devices; Obstetrical and Gynecological Devices; Classification of the Pressure Wedge for the Reduction of Cesarean Delivery. Final order.

The Food and Drug Administration (FDA or we) is classifying the pressure wedge for the reduction of cesarean delivery into class II (special controls). The special controls that apply to the device type are identified in this order and will be part of the codified language for the pressure wedge for the reduction of cesarean delivery's classification. We are taking this action because we have determined that classifying the device into class II (special controls) will provide a reasonable assurance of safety and effectiveness of the device. We believe this action will also enhance patients' access to beneficial innovative devices, in part by reducing regulatory burdens.

[Advanced classification for cardiovascular devices]. / Erweiterte Klassifikation für kardiovaskuläre Geräte.

Increasing complexity and many technical solutions for cardiovascular devices make it reasonable to introduce an advanced classification. The proposed classification has three levels. The first level distinguishes between implantable and wearable devices and the second level between therapeutic and diagnostic devices. The third level describes group-specific characteristics for each of the four subgroups. The aim of the classification is to differentiate the devices from each other and to easily describe interactions between two or more different devices. In addition, the classification should facilitate communication about these devices.

Novedades en artroplastia de hombro en 2015 / Update in shoulder surgery 2015: arthroplasty

La indicación en la cirugía de sustitución protésica del hombro ha cambiado de una forma drástica en los últimos años, hemos pasado del tratamiento con prótesis parciales para fracturas agudas al uso de prótesis inversas, la prótesis anatómica ha perdido terreno hasta el punto de que en muchos hospitales la prótesis invertida ha superado con creces a la prótesis anatómica. También podemos decir que las indicaciones de prótesis han variado, así hemos ampliado el uso de la prótesis inversa que fue desarrollada para el tratamiento de las artropatías por manguito rotador. Estos implantes en la actualidad se usan además como recurso para fracturas y recambios. En este artículo intentamos hacer una puesta al día de los problemas más frecuentes de las artroplastias y además se hace una revisión de lo publicado en los últimos años haciendo mayor hincapié en los artículos publicados en el JSES, JBJS y los ICL de la AAOS. De forma resumida se valoran las complicaciones que afectan a las prótesis de hombro

Changes in replacement surgery in the shoulder have happened recently: reverse shoulder prosthesis for acute fractures, and more indications for reverse shoulder arthroplasty than before. In this paper an update of most frequent concepts in shoulder surgery during 2015 is performed

Novedades en cirugía de columna vertebral en 2015 / No disponible

En este artículo de revisión, queremos destacar las principales novedades y curiosidades alrededor de la cirugía de columna que se han publicado el año 2015. Aunque, el año pasado no han sido publicadas grandes novedades en nuestra área de estudio, nosotros queremos hacer hincapié en los aspectos que nos han parecido más relevantes sobre cirugía de columna. Dado que la cirugía de columna representa una importante carga asistencial sanitaria y social. Los estudios aquí reflejados intentan dar respuestas a las múltiples demandas pendientes. Así es como abordaremos temas como la artrodesis cervical vs prótesis cervicales, uso local de vancomicina en polvo, vitamina D, mejoras en las técnicas de cementación vertebral, uso de agentes biológicos, escoliosis idiopática del adolescente y factores de riesgo para la cirugía de columna

In this revision article we want to highlight some news and curiosities around the spine surgery published during 2015. Although last year, they have not been published major innovations in spinal surgery, we want to emphasize some aspects that we consider interesting and useful in our working area. Spinal surgery is a major social and health burden, so the studies reflected here attempt to answer outstanding claims. This is how we address issues such as cervical arthrodesis vs cervical prostheses, use of local powder vancomycin, use of vitamin D, improving vertebral cementation techniques, risk factors for spine surgery, use of biological agents and adolescent idiopathic scoliosis

Rotura por fatiga de la zona central del vástago Exeter(R): una complicación excepcional / Fatigue fracture of the central zone of Exeter stem: an unusual complication

Objetivos: Conocer una complicación rara pero con importante morbimortalidad como es la rotura de vástagos protésicos cementados. Material y métodos: En nuestro caso nos referimos a la rotura de un vástago pulido Exeter(R) (Stryker(R)), fabricado en acero inoxidable y ampliamente utilizado en todo el mundo. Tras implantar dicho vástago en una paciente de 74 años que sufrió una fractura subcapital, se observa a los 8 años de la cirugía una rotura del vástago en la zona central; por lo que se recambia dicho vástago por uno de anclaje diafisario con buena evolución. Resultados y conclusiones: tras analizar las posibles causas que generaron el fracaso del vástago, identificamos un defecto en la cementación como el principal causante del fallo del implante

Objetives: explain a rare but important complication for patient that is the breakage of cemented stem. Methods: in our case, we refer to a polished stem Exeter(R) (Stryker(R)), made of stainless steel and widely used around the world. We implant Exeter® stem in a 74 year old patient and 8 years after the surgery, is observed a rupture in the central area of the stem; that stem is exchanged for one of diaphyseal anchorage with good evolution. Results: after analyzing the possible causes of the failure of this stem, we identified a defect in the cement as the main cause of implant failure

Uso de barras de pectus en la reconstrucción de defectos complejos de la pared torácica anterior / Use of Pectus Bars in the Reconstruction of Complex Anterior Chest Wall Defects

No disponible

The development of artificial organs and prostheses worldwide and in the Ottoman Empire.

An artificial organ or prosthesis is a man-made device that is implanted or integrated into a human to replace a natural organ. There were many historical steps in the development of artificial organs and prostheses. New surgical techniques, the development of prosthetic materials and the creative ideas of engineers led to progress in this field.

The implant infection paradox: why do some succeed when others fail? Opinion and discussion paper.

Biomaterial-implants are frequently used to restore function and form of human anatomy. However, the presence of implanted biomaterials dramatically elevates infection risk. Paradoxically, dental-implants placed in a bacteria-laden milieu experience moderate failure-rates, due to infection (0.0-1.1%), similar to the ones of joint-arthroplasties placed in a near-sterile environment (0.1-1.3%). Transcutaneous bone-fixation pins breach the immune-barrier of the epidermis, exposing underlying sterile-tissue to an unsterile external environment. In contrast to dental-implants, also placed in a highly unsterile environment, these pins give rise to relatively high infection-associated failure-rates of up to 23.0%. Herein, we attempt to identify causes as to why dental-implants so often succeed, where others fail. The major part of all implants considered are metal-made, with similar surface-finishes. Material choice was therefore discarded as underlying the paradox. Antimicrobial activity of saliva has also been suggested as a cause for the success of dental-implants, but was discarded because saliva is the implant-site-fluid from which viable bacteria adhere. Crevicular fluid was discarded as it is largely analogous to serum. Instead, we attribute the relative success of dental-implants to (1) ability of oral tissues to heal rapidly in the continuous presence of commensal bacteria and opportunistic pathogens, and (2) tolerance of the oral immune-system. Inability of local tissue to adhere, spread and grow in presence of bacteria and an intolerant immune-system are identified as the likely main causes explaining the susceptibility of other implants to infection-associated failure. In conclusion, it is the authors' belief that new anti-infection strategies for a wide range of biomaterial-implants may be derived from the relative success of dental-implants.

[Orthopaedic implants. Application outside of patient care?]. / Orthopädisch-Unfallchirurgische Implantate. Verwendungsmöglichkeiten außerhalb der Patientenversorgung?

Internal fracture fixation represents a widespread concept for the treatment of fractures. As the number of implants increases, person tracking may be possible. In spring 2010 near Rostock (Germany), human remains including a stainless steel nail were found. Forensic analysis considered the parts of skeleton to belong to a man of medium height, exposed to outdoor conditions for several years to a few decades. The tibial nail was analysed and according to the product identification number possible hospitals of implant placement and transportation paths were determined and screened. Furthermore a match analysis of the database of missing individuals of the last 15 years was undertaken and a DNA match analysis identified a local individual who had been missing since winter 2003. Equipped with the actual patient's identity, out of academic interest a survey of clinical documents such as discharge letters and operative reports was performed, but was inconclusive. Although technically feasible, tracking the patient in this case based on the implant product number itself was unsuccessful. In this case report, the feasibility, validity and efficiency of this option are presented and discussed.