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Wall Reconstruction (wall + reconstruction)
Kinds of Wall Reconstruction Selected AbstractsQUADRAPOD MESH FOR POSTERIOR WALL RECONSTRUCTION IN ADULT INGUINAL HERNIASANZ JOURNAL OF SURGERY, Issue 3 2008Shih-Chung Wu Inguinal hernia repairs are the most frequently carried out operations worldwide, and open-mesh herniorrhaphies have gained wide acceptance for advantages of little tension, less pain and lower recurrence rates. Even so, potential drawbacks of original open-mesh repairs exist, and we accordingly make some modifications, suggesting a new ,quadrapod' marlex mesh as an alternative. From July 2002 to March 2004, we carried out 288 consecutive inguinal hernia repairs using quadrapod mesh in 273 patients, all of them were male and aged older than 35 years. Patient demographics, operative parameters, morbidity and outcomes were collected in detail. After surgery, patients were followed up every 6 months at one surgeon's clinic and any major abnormality was recorded. Mean age of the 273 patients was 58.7 years. Twenty-eight patients had recurrent hernias and 15 bilateral hernias. Mean surgical duration was 50.7 min. One patient suffered from major wound infection and needed prolonged hospitalization for parenteral antibiotics. Owing to old age and benign prostatic hyperplasia, 11 patients receiving spinal anaesthesia had temporary postoperative urine retention and needed short-term urinary catheter insertion. Most patients were discharged 1 day following surgery. Acute wound pain generally improved within days, and no patients complained of chronic pain or debility necessitating special interventions. With a mean follow up of 40.7 months, no case of recurrent herniation was detected to date. Open-mesh herniorrhaphy using quadrapod mesh provides a cheap, feasible and effective alternative choice in centres with limited resources. Preliminary results are encouraging, and a formal prospective study may be warranted. [source] Aortic Valve Replacement with Simultaneous Chest Wall Reconstruction for Radiation-Induced SarcomaJOURNAL OF CARDIAC SURGERY, Issue 1 2008Anand Sachithanandan A.F.R.C.S.I. We describe a lady with previous mantle radiotherapy exposure, who developed a radiation-induced chest wall sarcoma. She underwent simultaneous aortic valve replacement (AVR) for severe aortic stenosis and excision of the sarcoma. Chest wall reconstruction was achieved with a composite marlex cement plate and a pedicled latissimus dorsi muscle flap. [source] Canal Wall Reconstruction with Mimix Hydroxyapatite Cement: Results in an Animal Model and Case Study,THE LARYNGOSCOPE, Issue 12 2003John Dornhoffer MD Abstract Objective/Hypothesis To assess Mimix hydroxyapatite cement for its applicability in canal wall reconstruction using the gerbil as a canal wall model. A case is presented to illustrate a novel technique of canal wall reconstruction using Mimix on the basis of the findings of our animal research. Study Design This was a preclinical study. Methods Ten Mongolian gerbils were implanted with Mimix, with the left side used to simulate mastoid obliteration and the right side used to simulate canal wall reconstruction. Pre- and postsurgery auditory-evoked brainstem responses were used to assess ototoxicity, and hematoxylin-eosin staining of histologic sections was used to assess inflammatory and foreign-body response and new bone formation. Results Rapid wound healing was achieved with each of the nine animals evaluated, with no erythema, edema, or drainage. Inspection of the ear canal at the time of sacrifice revealed no signs of otitis media and no middle ear effusions. Microscopic examination showed no inflammatory response or foreign-body reaction, good mucosalization on the side of the implant facing the bulla, and minimal fibrosis adjacent to the skin. Eight of nine specimens showed new woven bone ingrowth at the bone implant interface, with active osteoblasts and viable lacunae cells. There were no apparent fractures in the implanted material. Conclusions Mimix hydroxyapatite cement is biocompatible and suitable for canal wall reconstruction in the animal model. The characteristics of this cement, namely its ability to set quickly in a moist environment, offer advantages over previously used cements for canal wall reconstruction. [source] Aortic Valve Replacement with Simultaneous Chest Wall Reconstruction for Radiation-Induced SarcomaJOURNAL OF CARDIAC SURGERY, Issue 1 2008Anand Sachithanandan A.F.R.C.S.I. We describe a lady with previous mantle radiotherapy exposure, who developed a radiation-induced chest wall sarcoma. She underwent simultaneous aortic valve replacement (AVR) for severe aortic stenosis and excision of the sarcoma. Chest wall reconstruction was achieved with a composite marlex cement plate and a pedicled latissimus dorsi muscle flap. [source] Reconstruction of the chestwall and thorax,JOURNAL OF SURGICAL ONCOLOGY, Issue 6 2006Roman J. Skoracki MD Abstract Chest wall reconstructions can be complex and challenging procedures and may require a multidisciplinary approach. The most common indications for chest wall reconstruction are the repair of defects due to tumor ablation, infection, radiation necrosis, congenital deformities, and trauma. Flap reconstruction by plastic surgery is often required when skin is removed as part of the chest wall resection or when radiation therapy is given pre- or post-operatively. Tissue flaps may be needed to provide vascularized tissue over alloplastic materials used to stabilize the chest wall, to cover vital structures of the chest cavity, to fill dead space, and to improve cosmesis. J. Surg. Oncol. 2006;94:455,465. © 2006 Wiley-Liss, Inc. [source] Evidence of innervation following extracellular matrix scaffold-mediated remodelling of muscular tissuesJOURNAL OF TISSUE ENGINEERING AND REGENERATIVE MEDICINE, Issue 8 2009Vineet Agrawal Abstract Naturally occurring porcine-derived extracellular matrix (ECM) has successfully been used as a biological scaffold material for site-specific reconstruction of a wide variety of tissues. The site-specific remodelling process includes rapid degradation of the scaffold, with concomitant recruitment of mononuclear, endothelial and bone marrow-derived cells, and can lead to the formation of functional skeletal and smooth muscle tissue. However, the temporal and spatial patterns of innervation of the remodelling scaffold material in muscular tissues are not well understood. A retrospective study was conducted to investigate the presence of nervous tissue in a rat model of abdominal wall reconstruction and a canine model of oesophageal reconstruction in which ECM scaffolds were used as inductive scaffolds. Evidence of mature nerve, immature nerve and Schwann cells was found within the remodelled ECM at 28 days in the rat body wall model, and at 91 days post surgery in a canine model of oesophageal repair. Additionally, a microscopic and morphological study that investigated the response of primary cultured neurons seeded upon an ECM scaffold showed that neuronal survival and outgrowth were supported by the ECM substrate. Finally, matricryptic peptides resulting from rapid degradation of the ECM scaffold induced migration of terminal Schwann cells in a concentration-dependent fashion in vitro. The findings of this study suggest that the reconstruction of tissues in which innervation is an important functional component is possible with the use of biological scaffolds composed of extracellular matrix. Copyright © 2009 John Wiley & Sons, Ltd. [source] Repair of vaginal vault prolapse and pelvic floor relaxation using polypropylene mesh,NEUROUROLOGY AND URODYNAMICS, Issue 7 2005Matthew P. Rutman Abstract Aims The sacrouterine ligament/cardinal (SULC) complex and prerectal fascia attach at the perineal body, forming a single support unit preventing levator descent. Many patients with vault prolapse have levator descent and widening of the hiatus. Existing transvaginal procedures do not address pelvic floor descent. We describe a technique utilizing polypropylene mesh to repair pelvic floor relaxation and prevent levator descent, along with restoration of the SULC complex in vaginal vault repair. Materials and Methods We prospectively evaluated 50 patients who had a transvaginal mesh vault/posterior wall reconstruction. A T-shaped soft prolene mesh is prepared fixing the two arms of the mesh and recreating the SULC complex in support of the cuff. The vertical segment of the mesh is transferred over the prerectal fascia and secured to the pelvic floor musculature. The rectocele is repaired incorporating the mesh distally preventing pelvic floor descent. Surgical outcome was determined by patient self-assessment including quality of life (QoL) measure as well as pelvic examination using POP-Q staging. Results Mean age was 67 years. Mean follow-up was 6 months (range 3,12). There were no intraoperative complications. There have been two apical (4%) recurrences. Mean QoL score postoperatively on a 0,6 scale was 0.74 (0,=,delighted, 1,=,pleased). Pelvic floor descent has been repaired on all patients. Postoperative POP-Q reveals restoration of normal anatomy. Conclusions We report a new technique that recreates the SULC complex in support of the vaginal vault with the aid of prolene mesh. It is the first transvaginal procedure described to reconstruct the pelvic floor in attempt to prevent pelvic floor descent. Neurourol. Urdynam. © 2005 Wiley-Liss, Inc. [source] Canal Wall Reconstruction with Mimix Hydroxyapatite Cement: Results in an Animal Model and Case Study,THE LARYNGOSCOPE, Issue 12 2003John Dornhoffer MD Abstract Objective/Hypothesis To assess Mimix hydroxyapatite cement for its applicability in canal wall reconstruction using the gerbil as a canal wall model. A case is presented to illustrate a novel technique of canal wall reconstruction using Mimix on the basis of the findings of our animal research. Study Design This was a preclinical study. Methods Ten Mongolian gerbils were implanted with Mimix, with the left side used to simulate mastoid obliteration and the right side used to simulate canal wall reconstruction. Pre- and postsurgery auditory-evoked brainstem responses were used to assess ototoxicity, and hematoxylin-eosin staining of histologic sections was used to assess inflammatory and foreign-body response and new bone formation. Results Rapid wound healing was achieved with each of the nine animals evaluated, with no erythema, edema, or drainage. Inspection of the ear canal at the time of sacrifice revealed no signs of otitis media and no middle ear effusions. Microscopic examination showed no inflammatory response or foreign-body reaction, good mucosalization on the side of the implant facing the bulla, and minimal fibrosis adjacent to the skin. Eight of nine specimens showed new woven bone ingrowth at the bone implant interface, with active osteoblasts and viable lacunae cells. There were no apparent fractures in the implanted material. Conclusions Mimix hydroxyapatite cement is biocompatible and suitable for canal wall reconstruction in the animal model. The characteristics of this cement, namely its ability to set quickly in a moist environment, offer advantages over previously used cements for canal wall reconstruction. [source] Reproducibility of coronary lumen, plaque, and vessel wall reconstruction and of endothelial shear stress measurements in vivo in humansCATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS, Issue 1 2003Ahmet U. Coskun PhD Abstract The purpose of this study was to assess the reproducibility of an in vivo methodology to reconstruct the lumen, plaque, and external elastic membrane (EEM) of coronary arteries and estimate endothelial shear stress (ESS). Ten coronary arteries without significant stenoses (five native and five stented arteries) were investigated. The 3D lumen and EEM boundaries of each coronary artery were determined by fusing end-diastolic intravascular ultrasound images with biplane coronary angiograms. Coronary flow was measured. Computational fluid dynamics was used to calculate local ESS. Complete data acquisition was then repeated. Analysis was performed on each data set in a blinded manner. The intertest correlation coefficients for all arteries for the two measurements of lumen radius, EEM radius, plaque thickness, and ESS were r = 0.96, 0.96, 0.94, 0.91, respectively (all P values < 0.0001). The 3D anatomy and ESS of human coronary arteries can be reproducibly estimated in vivo. This methodology provides a tool to examine the effect of ESS on atherogenesis, remodeling, and restenosis; the contribution of arterial remodeling and plaque growth to changes in the lumen; and the impact of new therapies. Catheter Cardiovasc Interv 2003;60:67,78. © 2003 Wiley,Liss, Inc. [source] Reconstruction of the chestwall and thorax,JOURNAL OF SURGICAL ONCOLOGY, Issue 6 2006Roman J. Skoracki MD Abstract Chest wall reconstructions can be complex and challenging procedures and may require a multidisciplinary approach. The most common indications for chest wall reconstruction are the repair of defects due to tumor ablation, infection, radiation necrosis, congenital deformities, and trauma. Flap reconstruction by plastic surgery is often required when skin is removed as part of the chest wall resection or when radiation therapy is given pre- or post-operatively. Tissue flaps may be needed to provide vascularized tissue over alloplastic materials used to stabilize the chest wall, to cover vital structures of the chest cavity, to fill dead space, and to improve cosmesis. J. Surg. Oncol. 2006;94:455,465. © 2006 Wiley-Liss, Inc. [source] | ||||||||||