Search results for " augmentation"
showing 10 items of 116 documents
Continent urinary diversion and bladder augmentation in children: the Mainz pouch procedure.
1989
The formation of a bowel reservoir of large capacity at low pressure by using small and large bowel (ileocaecal segment) has proved reliable for achieving continent urinary diversion (n = 80), for bladder augmentation (n = 42) as well as for total bladder replacement (n = 24). Encouraged by the results we obtained in our adult patients, we have used this technique during the last 3.5 years in 29 children. Indications for urinary diversions in children have been: neurogenic bladder with diplegia (n = 8), bladder exstrophy (n = 2), traumatic loss of the bladder (n = 1), urogenital sinus (n = 1) and rhabdomyosarcoma of the prostate or bladder (n = 2). Bladder augmentation was indicated in 6 ch…
Ureterocystoplasty in a Boy with Myelomeningocele
2010
Introduction In the rare case of a decompensated neurogenic bladder combined with a unilateral hydronephrosis and hydroureter, ureterocystoplasty is a feasible and elegant technique for bladder augmentation. In contrast to augmentation using bowel segments, the use of urothelial-lined tissue avoids the common problems caused by mucus development and electrolyte disturbance. Prerequisite is a unilateral non-functional kidney and a severe dilation of the ureter. Patients The patient presented in this case report is an 11-year old boy with myelomeningocele. Due to a decompensated neurogenic low-compliance bladder with high-degree reflux, the left kidney was hydronephrotic and afunctional, urod…
Bladder augmentation and urinary diversion in patients with neurogenic bladder: Surgical considerations
2010
Segments from almost all parts of the bowel have been used for urinary diversion. As a result, the available absorptive surface area of the bowel is reduced, and the incorporation of bowel segments into the urinary tract may have metabolic consequences. This is an area somewhat neglected in the literature. Metabolic complications are rare, but sub-clinical metabolic disturbances are quite common. Several studies have demonstrated that some of the absorbent and secreting properties of the bowel tissue are preserved after incorporation into the urinary tract. Hyperchloraemic metabolic acidosis can occur if ileal and/or colon segments are used, as well as malabsorption of vitamin B(12) and bil…
Complications in the treatment with alveolar extraosseous distractors: literature review
2014
Background To review the literature that analyses the types and frequency of complications associated with the use of extraosseous alveolar distraction from 2007 to 2013. Material and Methods Review of the literature in PubMed, using these keywords; alveolar ridge, alveolar distraction osteogenesis, complication, literature review. Inclusion criteria were: articles published between 2007 and 2013 that included the distraction protocol, the complications encountered and the time when they occurred. Results According to the above criteria, 12 articles were included in this review, where 334 extraosseous distractors were placed and 395 complications were encountered, of which 19 (4.81%) were i…
Doctor, quiero una talla 100
2009
Cuando una paciente consulta al cirujano plástico con la intención de que éste le efectúe una mamoplastia de aumento es, en la mayoría de las ocasiones, difícil interpretar exactamente el volumen que desea. La determinación del volumen de la mama que posee la paciente y del volumen que quisiera tener se ve limitada por inconvenientes técnicos y por la poca precisión en la interpretación psicosocial de las mediciones y cálculos que se pueden hacer. El objetivo de este estudio ha sido desarrollar un sistema que partiendo de las medidas intrínsecas del sujetador permita relacionar el volumen de la mama de la paciente con el volumen de la copa del sujetador que desea y con la prótesis necesaria…
Continent urinary diversion in childhood
1992
Continence and a positive body image are important, especially to the adolescent patient. Since 1964 we have used ureterosigmoidostomy and have achieved a complete continence rate of 92.3%. The creation of a low-pressure reservoir by antimesenteric splitting of the recto-sigmoid eliminated many of the shortcomings of ureterosigmoidostomy. This procedure is termed the sigma-rectum pouch and has been applied in six children to date. Mainz-pouch bladder augmentation or substitution has been performed in 20 children, 17 of whom are completely continent. The results of the modified Young Dees procedure were disappointing. In three children, conversion into a continent diversion was necessary. Al…
Kontinente Harnableitung und Schwangerschaft
1995
We report on our experience with 7 pregnancies in 6 women who previously underwent reconstruction of the urinary tract with a continent urinary diversion using an ileo caecal segment (Mainz-Pouch I), ureterosigmoidostomy or bladder augmentation. Urinary tract infection and upper tract dilatation were the only complications during pregnancy which required bilateral nephrostomies in one case. All other sequelae were handled conservatively. The continence mechanisms were not compromised during pregnancy or delivery. Deliveries were vaginal in two cases and by Caesarean section in five. All seven newborn were healthy. Pregnancy is not contraindicated after any type of urinary diversion includin…
Nanocrystalline Hydroxyapatite Bone Substitute Leads to Sufficient Bone Tissue Formation Already after 3 Months: Histological and Histomorphometrical…
2012
Purpose: In this study the de novo bone formation capacity of a nanocrystalline hydroxyapatite bone substitute was assessed 3 and 6 months after its insertion into the human sinus cavity. Materials and Methods: Sinus cavity augmentation was performed in a total of 14 patients (n = 7 implantation after 3 months; n = 7 implantation after 6 months) with severely atrophic maxillary bone. The specimens obtained after 3 and 6 months were analyzed histologically and histomorphometrically with special focus on bone metabolism within the residual bone and the augmented region. Results: This study revealed that bone tissue formation started from the bone-biomaterial-interface and was directed into th…
A prospective, randomized pilot study on the safety and efficacy of recombinant human growth and differentiation factor-5 coated onto β-tricalcium ph…
2010
Objectives: The aim of this prospective, randomized clinical trial was to investigate the potential of recombinant human growth and differentiation factor-5 (rhGDF-5) coated onto β-tricalcium phosphate (β-TCP) (rhGDF-5/β-TCP) to support bone formation after sinus lift augmentation. Material and methods: In total, 31 patients participated in this multicenter clinical trial. They required a two-stage unilateral maxillary sinus floor augmentation (residual bone height <5 mm). According to a parallel-group design, the patients were randomized to three treatment groups: (a) augmentation with rhGDF-5/β-TCP and a 3-month healing period, (b) augmentation with rhGDF-5/β-TCP and a 4-month healing per…
Meta-analytic study of implant survival following sinus augmentation
2011
Objectives: To evaluate graft types used for maxillary sinus augmentation and review success rates of dental implants inserted in these areas, analyzing the graft materials used, implant surface types and the moment of implant placement. Study Design: A meta-analytic study reviewing articles on sinus augmentation published during the last ten years. Results: 3,975 implants placed in sinus augmentations (with bony windows) were registered, of which 3,749 implants survived, a survival rate of 94.3%. Conclusions: When performing sinus augmentation, bone substitute materials are just as effective as autologous bone, whether used alone or in combination with autologous bone. Implant surface trea…