Expanded polytetrafluoroethylene patch for the repair of large abdominal wall defects

Expanded polytetrafluoroethylene (ePTFE) was used to repair 11 large abdominal wall defects in ten patients. Three patches were fixed to the adjacent abdominal aponeurosis with a single row of sutures; seven patches were implanted with a 1-2 cm overlap of patch and aponeurosis and a double row of sutures. Recurrent buttonhole hernias were found in two patients, in both of whom a single row of sutures had been used. This reherniation was due to insufficient anchorage of the patch to the fascia. It is concluded that ePTFE is a useful material to repair large abdominal wall defects provided the patch is fixed to the aponeurosis with an overlap and a double row of sutures to prevent buttonhole hernias.     

构建组织工程肌腱膜与腹壁缺损修复

<正>随着外科技术手段的进步,腹壁缺损的治疗已由传统的单纯直接缝合修补,转变为以材料学为基础、利用各种补片进行的无张力修复。传统的手术治疗主要是将腹壁缺损周围的肌肉或韧带强行缝合,术后病人疼痛明显,恢复时间长,复     

Reconstruction of large abdominal wall defects

Reconstruction of a large abdominal defect is a technically demanding procedure. A single flap is sometimes insufficient for cover. Compound procedures play an important role in solving this problem. The case of a 35-year-old man with a large abdominal hernia as a result of a traumatic defect on the right abdomen, previously covered by a skin graft, is presented. The reconstructive method was initially expansion of posterior and upper parts of the defect and also of the tensor fascia lata in situ and then deepithelization of the previous skin graft over the intestinal serosa. The defect was covered by Prolene mesh, the upper and dorsal expanded skin was approximated, and an expanded tensor fascia lata flap was transposed to complete the cover. During follow-up examinations, there were no complications such as infection or recurrence of the hernia. Received: 29 January 1999 / Accepted: 14 June 1999     

Extended myofascial thigh flaps for repair of large full-thickness abdominal wall defects

The large, full-thickness abdominal wall defect encompassing the upper and lower quadrants can test the surgeon's ingenuity in providing definitive repair. Two cases are reported of this type of abdominal wall defect closed in one stage using an extended tensor fascia lata myofasciocutaneous flap and an extended rectus femoris myofascial flap, respectively. In addition, a fresh cadaver dye injection study demonstrates the extensive circulatory pattern of these flaps.     

Use of tissue expanders in the repair of complex abdominal wall defects

Background/Purpose

Closure of abdominal wall defects in children poses a challenge for pediatric surgeons. We describe a technique using tissue expanders placed either intraperitoneally or in the abdominal wall to aid in the reconstruction of a variety of complex abdominal wall defects.

Methods

The tissue expanders are inserted under general anesthesia. Initial expansion is done in the operating room with attention to peak airway pressure, urine output, and end-tidal carbon dioxide. The expanders are inflated in the outpatient setting via percutaneous access until the calculated inflation volume is achieved. They are then removed; and definitive closure is accomplished using a combination of native tissue flaps, abdominal component separation techniques, biomaterials, and synthetic material.

Results

Six children underwent tissue expansion for treatment of abdominal wall defects (omphalocele, n = 3), trauma (n = 1), and thoracopagus twins (n = 1 pair). One to 4 expanders were used per patient, with all having a successful reconstruction of their abdominal walls. Two to 3 operations were required to restore abdominal domain and consisted of expander insertion, removal with reconstruction, and possible revision of the reconstruction.

Conclusions

Tissue expanders possess a broad range of applications for abdominal wall reconstruction and can be used in patients of all ages.     

Surgical treatment of large contaminated abdominal wall defects

BACKGROUND: Repair of a large, severely contaminated abdominal wall defect is a challenging problem. Most patients are currently treated with a multistaged procedure, which is time consuming, carries a high complication rate, and is often not finalized. STUDY DESIGN: In this study, our experience with a one-stage repair of contaminated abdominal wall defects using the Components Separation Method was evaluated with respect to morbidity and recurrence. Medical records of patients with contaminated abdominal wall defects, treated with the Components Separation Method from 1996 to 2000, were studied. Patients were invited to visit the outpatient clinic for a physical examination. RESULTS: Twenty-six patients with a median age of 49 years and a mean defect size of 267 cm2 were treated. Intraoperative contamination, graded according to the National Research Council (NRC), showed 22 National Research Council III patients and 4 National Research Council IV patients. Postoperatively, five superficial wound infections, three cases of pneumonia, three instances of recurrent enterocutaneous fistulation, and two cases of sepsis were observed. One of the patients with sepsis died after anastomotic disruption led to peritonitis and multiple organ failure. Two asymptomatic recurrences were diagnosed (8%) after a median followup of 27 months. CONCLUSIONS: Large contaminated abdominal wall hernias can be closed by the Components Separation Method, with a low recurrence rate but considerable morbidity.     

Marlex mesh for repair of abdominal wall defects.

The best synthetic material available for repair of abdominal wall defects associated with an insufficiency of tissue is Marlex mesh. Among 14 patients with large hernias and 3 who underwent tumour resection only 2 manifested recurrence of the defect. In three of these patients infection developed, but its control made it unnecessary to remove the Marlex. In another three with gross infection of the abdominal wall, Marlex was used successfully to provide abdominal wall closure.     

Musculature tissue engineering to repair abdominal wall hernia

Hernia repair is one of the most frequently performed operations in surgical clinics. Tissue engineering provides insights for the treatment of abdominal wall hernias and other disorders involving deficiencies in the musculature. The present review summarizes the mechanisms of muscle development and regeneration and provides an overview of tissue engineering strategies for the construction of muscles.     

生物材料在修补复杂性腹壁缺损中的使用

感染、污染或可能污染的腹壁缺损一直是疝和腹壁外科的治疗难点,主要包括补片感染、肠瘘合并疝、腹腔内脓肿、粪便性腹膜炎病史、造口旁疝修补术、无肠坏死或穿孔的嵌顿性疝、疝修补过程中实施肠切除和复发性切口疝等,上述情况统称为复杂性腹壁缺损.采用传统的合成材料如聚丙烯、聚酯或聚四氟乙烯等来修补,面临着感染、再取出材料和复发的危险.成分分离技术、可吸收补片和自体组织移植等方法由于各种局限性和并发症的存在,应用受到一定的限制.近年来,脱细胞异体真皮基质(acellular dermal matrix,ADM)和其他生物材料的出现,使外科医生能够较安全地一期重建上述复杂性腹壁缺损[1-2].     

Plastic surgery repair of abdominal wall and pelvic floor defects

Urologists often encounter large perineal and abdominal wall defects, the treatment of which may require close collaboration with the plastic surgeon. These complex defects can be successfully treated using a variety of techniques. Ventral hernias or freshly created abdominal wall defects can be treated with the basic principles of tension-free closure using abdominal wall components separation, synthetic mesh reconstruction, and, more recently, biosynthetic acellular dermis reconstruction. Pelvic floor defects often require flap reconstruction using gracilis flaps, vertical rectus abdominis myocutaneous flaps, or local fasciocutaneous flap. In this article, we seek to familiarize the urologists with the most common techniques used by plastic and reconstructive surgeons in the treatment of these complicated pelvic floor and abdominal wall defects.     

A medially based abdominal transposition flap for large soft tissue defects of the anterior chest wall

. Large defects of the anterior chest wall need not necessarily be covered with a muscle flap if the ribs are intact. A medially based transposition flap from the abdomen with borders at the posterior axillary line, the superior iliac spine, the inguinal ligament, and the umbilicus is described. This flap receives its blood supply through the periumbilical subcutaneous plexus and perforators of the epigastric vessels which cross the midline. The donor-site can be closed primarily in a V-to-Y fashion and the flap can cover defects of the anterior and anterolateral chest wall up to the clavicle. In 17 cases this flap proved to be highly reliable, it is easy to perform and it has an extremely low donor-site morbidity with a good aesthetic result when compared to muscle flaps.     

植入性修补材料在腹壁肿瘤切除术后腹壁缺损修补的应用进展

<正>尽管腹壁肿瘤的临床发病率较低,但总体发生率呈上升趋势,而目前主要采用以手术为主的综合治疗方式。腹壁肿瘤切除后形成的腹壁缺损修补对外科医师来说是一个具有挑战性的问题,尤其是复杂缺损。随着材料科学和生物工程技术的快速发展,用在临床中修复人体腹壁缺损的新型组织工程材料不断出现,给腹壁肿瘤切除术所造成的腹壁缺损提供了新的选择。本文主要阐述植入性修补材料在腹壁肿瘤切除术后腹壁缺损修补的应用进展。一、腹壁肿瘤的定义腹壁肿瘤定义为腹壁皮肤及附属器、皮下组织、肌肉、腱膜等腹壁全层的软组织,都可在各种致瘤因素的作用下,     

Method of repair of anterior abdominal wall defects in children]

Experimental studies were conducted on 60 cadavers of children whose ages ranged from 0 to 14 years. A defect measuring 6-10 cm was formed in the muscles of the anterior abdominal wall (an approximate model of a hiatal opening). Several rows of crimping sutures were then applied to the aponeurosis of the rectus abdominis muscle above and below the defect. The force of stretching of the edges of the defect was studied by an elaborated tensiometric device after application of each row of crimping sutures. It was found that application of two or three rows of crimping sutures above and below the ventral defect ensures reliable decrease of the stretching load exerted on its edges and allows them to be sutured without tension. The optimal zones in the operative field for applying the crimping sutures were also determined. On the basis of experimental study the authors developed and used in the clinic a method for autoplasty of ventral hernias based principally on placing sutures through the edges of the ventral defect only after their approximation, after preliminary removal of the stretching load experienced by the laparotomic wound. The authors used this method of plasty successfully in 9 children with ventral hernias whose ages ranged from 2 to 14 years.     

生物可降解支架在修复腹壁缺损中的应用

<正>腹壁缺损作为外科的常见症状,其发生率在过去的75年里仍维持在一定的水平。统计表明美国每年约施行200万例腹部手术,而其中约10万人需要在术后进行腹壁缺损的修复[1-2]。使用不可降解的合成材料(聚丙烯、聚四氟