Use Of Acellular Dermal Matrix Research Articles

The use of porcine acellular dermal matrix in silicone implant-based breast reconstruction

The most frequently occurring long-term complication in implant-based breast reconstruction is fibrotic capsule formation at the recipient site, with concurrent dysesthesia and poor aesthetic results. Using porcine acellular dermal matrix (PADM) as a connective tissue graft material is supposed to improve the quality and quantity of soft tissue in implant-based breast reconstruction. This study investigates the indications for and the results and the costs of using PADM for the correction or prevention of implant-associated breast deformities. This study reviewed a single surgeon's experience in the correction or prevention of implant-associated breast deformities with PADM in breast cancer-related breast reconstruction from 2009 to 2011. A total of 23 patients (27 breasts) were included in the study. The aesthetic outcome, the incidence and the type of complication were analysed. Twenty-three women underwent breast cancer-related breast reconstruction: 19 women underwent single-breast reconstruction and four women underwent bilateral reconstruction. Of the 23 patients who underwent breast reconstruction, 18 (78%) were "satisfied" with the aesthetic and haptic outcome after implant-based reconstruction with PADM. One patient (one breast) required another breast operation because of ipsilateral breast cancer recurrence during the follow-up period. PADM-assisted implant-based breast reconstruction has a satisfactory safety profile. The use of PADM as an interface matrix for implant-based breast reconstruction yielded predictable and acceptable aesthetic and haptic results by preventing capsular contracture, rippling, implant malposition, soft-tissue thinning and failure of the silicone implant-based breast augmentation.

Initial Experience With the Use of Porcine Acellular Dermal Matrix (Strattice) for Abdominal Wall Reinforcement After Transverse Rectus Abdominis Myocutaneous Flap Breast Reconstruction

Reestablishing anterior rectus fascial integrity remains a clinical challenge after transverse rectus abdominis myocutaneous (TRAM) flap breast reconstruction. The main concerns include herniation and bulging due to abdominal weakness. Mesh-assisted closure of the fascial defect has improved bulging and herniation rates but infection, extrusion, and encapsulation are serious concerns with mesh use. Biologic tissue matrices may overcome some of these mesh-related complications. The initial experience of using Strattice for fascial closure after TRAM flap procedure is described in this article. Strattice was in-lain and sutured between the anterior and posterior layers of the rectus fascia, at the rectus muscle donor site. The abdominal wall was closed with progressive tension sutures. Postoperative complications at the donor site were assessed. A total of 16 unilateral and 9 bilateral reconstructions were performed in 25 patients. Length of hospital stay was 2 to 3 days which is shorter than with mesh repair (typically 4-5 days). During a mean follow-up period of 14.0 months, complications occurred in 7 patients (28%): seroma formation (2), minor skin separation (2), superficial skin infection (2), and superficial wound dehiscence (1). Complications were not directly related to Strattice and all, except one (superficial skin infection), were resolved without surgical intervention. In all patients, routine abdominal functions were restored 4 months postoperatively. Strattice is a safe, alternative option to synthetic mesh for fascial repair following TRAM flap breast reconstruction. When used in conjunction with progressive tension suture closure of the abdominal wall, dynamic reconstruction of the abdominal wall with resumption of abdominal function is possible with Strattice.

543 Initial Experience with the Use of Porcine Acellular Dermal Matrix for Breast Reconstruction

543 Initial Experience with the Use of Porcine Acellular Dermal Matrix for Breast Reconstruction

The use of human acellular dermal matrix in the prevention of infra-auricular depressed deformities and Frey's syndrome following total parotidectomy

The aim of the study was to explore whether human acellular dermal matrix (ADM) implantation could prevent infra-auricular depressed deformities and Frey's syndrome following total parotidectomy. We analyzed 41 cases of total parotidectomy (control group) and 29 cases of simultaneous ADM implantation following total parotidectomy (ADM group) for infra-auricular depressed deformities and the presence of gustatory flushing or sweating. The follow-up periods ranged from 6 months to 7 years. Facial contours and bilateral symmetry improved after surgery in the ADM group. In the control group, an infra-auricular depressed deformity was evident in all 41 cases. Frey's syndrome was recorded in 1 patient (3.4%) from the ADM group and 14 patients (34.1%) from the control group. No cases of immune rejection, infection, hematoma, or salivary fistula were observed in either group. The use of ADM could reduce postoperative facial contour deformities and Frey's syndrome following total parotidectomy.

Use of Xenogenic Acellular Dermal Matrix As Resurfacing Graft to Promote Epithelialization of Avascular Wounds

Use of Xenogenic Acellular Dermal Matrix As Resurfacing Graft to Promote Epithelialization of Avascular Wounds

The Use of Human Acellular Dermal Matrix for the Correction of Secondary Deformities after Breast Augmentation: Results and Costs

The Use of Human Acellular Dermal Matrix for the Correction of Secondary Deformities after Breast Augmentation: Results and Costs

A Meta-Analysis of Human Acellular Dermis and Submuscular Tissue Expander Breast Reconstruction

Human acellular dermal matrix has become an increasingly used adjunct to traditional submuscular tissue expander/implant breast reconstruction, but there is no strong consensus regarding complication outcomes. This study stratified outcomes based on a meta-analysis of complications. A query of the MEDLINE database for articles on human acellular dermal matrix and submuscular tissue expander breast reconstruction yielded 901 citations. Two levels of screening identified 48 relevant studies. The DerSimonian and Laird random-effects model was used to perform the meta-analysis. Risk ratios and pooled complication rates were calculated for each outcome of interest. Nineteen studies reporting human acellular dermal matrix (n = 2037) and 35 reporting submuscular outcomes (n = 12,847) were used to estimate complication rates. Rates were generally higher in acellular dermis patients: total complications, 15.4 versus 14.0 percent; seroma, 4.8 versus 3.5 percent; infection, 5.3 versus 4.7 percent; and flap necrosis, 6.9 versus 4.9 percent. Six studies reporting both acellular dermis and submuscular outcomes were used to estimate relative risks. There was an increased risk of total complications (relative risk, 2.05; 95 percent CI, 1.55 to 2.70), seroma (relative risk, 2.73; 95 percent CI, 1.67 to 4.46), infection (relative risk, 2.47; 95 percent CI, 1.71 to 3.57), and reconstructive failure (relative risk, 2.80; 95 percent CI, 1.76 to 4.45) in acellular dermis patients. The meta-analysis suggests that the use of human acellular dermal matrix increases complication rates vis-à-vis submuscular expander/implant reconstruction. This must be weighed against its reported advantages in enhancing cosmesis and ameliorating contracture. : Therapeutic, III.

Acellular Dermis–Assisted Prosthetic Breast Reconstruction

The use of acellular dermal matrix to assist in two-stage expander/implant breast reconstruction has increased over recent years. However, there are questions regarding the potential for increased morbidity when using these techniques relative to standard submuscular coverage techniques. This systematic review combines published data comparing the techniques, to compare morbidity and advantages of acellular dermal matrix relative to standard submuscular coverage techniques. An English language literature search was performed to find articles reporting outcomes of two-stage expander/implant reconstruction using acellular dermal matrix. The outcome categories analyzed were patient/treatment demographics, tissue expander characteristics, and complications. Nine articles met inclusion criteria for this analysis. Six of these were matched cohort studies comparing outcomes of acellular dermal matrix techniques to standard submuscular techniques. The remaining three were case series of acellular dermal matrix techniques. The only difference found in complications was a higher rate of seroma for the acellular dermal matrix group (4.3 percent versus 8.4 percent, p = 0.03). Despite this, both groups illustrated similar rates of infection leading to explantation (3.2 percent for submuscular and 3.4 percent for acellular dermal matrix, p = 0.18). In addition, acellular dermal matrix techniques illustrated greater intraoperative fill volumes and consistently fewer fills required to reach expander capacity. The use of acellular dermal matrix in two-stage expander/implant reconstruction offers a safety profile similar to that of standard submuscular techniques. Both techniques have shown similar rates of infection ultimately requiring explantation. In addition, acellular dermal matrix offers the advantage of a more rapid reconstruction with less need for manipulation of the prosthetic through filling. Therapeutic, III.

Use of acellular dermal matrix (Strattice™) for breast recons-truction at West Sussex Breast Unit

Introduction: Strattice is an acellular dermal matrix derived from porcine dermis. It provides a method of complete coverage of implant, lower breast pole support and improved aesthetics. We describe our District General Hospital preliminary experience using Strattice in combination with implant reconstruction.

Acellular Dermal Matrix and Negative Pressure Wound Therapy: A Tissue-Engineered Alternative to Free Tissue Transfer in the Compromised Host

Free tissue transfer has revolutionized lower extremity reconstruction; however, its use in elderly patients with multiple medical problems can be associated with elevated rate s of perioperative morbidity and mortality. This study evaluates the use of acellular dermal matrix (ADM) in conjunction with negative pressure wound therapy (NPWT) and delayed skin graft application as an alternative to free tissue transfer in this compromised population. Bilayer, ADM (Integra, Plainsboro, NJ) was used in conjunction with NPWT (Wound V.A.C, Kinetic Concepts Inc., San Antonio, TX) to achieve vascularized coverage of complex lower extremity wounds with denuded tendon and bone in elderly, medically compromised patients. Following incorporation, the matrix was covered with split-thickness skin graft. Four patients (age range, 50 to 76 years) with multiple medical comorbidities were treated with the above protocol. The average time to complete vascularization of the matrix was 29 days. Definitive closure with split-thickness skin graft was achieved in three patients and one wound healed by secondary intention. No medical or surgical complications were encountered and stable soft tissue coverage was achieved in all patients. This early experience suggests that dermal substitute and NPWT with delayed skin graft application can provide a reasonable tissue-engineered alternative to free tissue transfer in the medically compromised individual.

Acellular Dermal Matrix in Primary Breast Reconstruction

The use of acellular dermal matrix (ADM) in many plastic surgery procedures, including breast reconstruction, has increased dramatically in recent years. While expander/implant reconstruction can be performed successfully with standard techniques, the introduction of ADM has added a new tool with which to achieve lasting, predictable results. This article is a summary of existing literature on ADM for primary implant reconstruction, to provide a more thorough understanding of the benefits of ADM in single- and to two-stage breast reconstruction and to identify the areas where further investigation is needed.

Acellular Dermal Matrix: General Principles for the Plastic Surgeon

Acellular dermal matrix (ADM) is a recently-developed, biologically-derived product with many useful applications in plastic surgery, in both cosmetic and reconstructive procedures. While the use of ADM initially outpaced quality literature, within the past 10 years the literature on ADM has rapidly expanded. Some of these data show promising results in treating historically-challenging problems within our field; thus, an effort to clarify and summarize existing work with ADM is indicated. While subsequent articles in this supplement focus on specific applications, this article provides a general overview of the biology of, applications for, and existing literature on ADM.

Salvage of Calvarial Bone Graft Using Acellular Dermal Matrix in Nasal Reconstruction and Secondary Rhinoplasty for Frontonasal Dysplasia

Frontonasal dysplasia is a severe malformation composed of cranial, ophthalmic, nasal, upper lip, and palatal deformities. Reconstruction in these patients requires complex craniofacial efforts. A 19-year-old woman with frontonasal dysplasia was treated at our institution where she had undergone multiple prior reconstructive surgeries including facial bipartition and cantilevered calvarial bone graft for nasal reconstruction. She later presented with a palpable bone graft prominence, associated contour deformity, and an area of overlying paper-thin skin at the nasal tip. Although there was no ulceration, the threat of graft extrusion required immediate attention. The prominent bone graft tip was debrided, and the overlying soft tissue envelope was augmented using acellular dermal matrix. No surgical complication was encountered. The patient had successful salvage of the bone graft and a pleasing aesthetic outcome at 9 months of follow-up. The use of acellular dermal matrix has proven to be beneficial in the correction of nasal contour deformities given its soft, natural appearance, availability, affordability, and safety. Its use also avoids further donor site morbidity. We suggest acellular dermal matrix as a graft material in revision rhinoplasties for cases of acquired nasal contour deformity and threatened bone graft extrusion. This is the first report known to the authors using acellular dermal matrix during staged nasal reconstruction in a patient experiencing frontonasal dysplasia.

Acellular Dermal Matrix Masking Detection of Recurrent Breast Carcinoma: A Novel Complication

Acellular dermal matrix (ADM) use in prosthetic breast reconstruction has become increasingly popular. Several benefits have been reported with this technique including diminished donor-site morbidity and improved aesthetic outcomes. Recently, in an effort to ascertain the overall safety and efficacy of this approach, an emphasis has been placed on identifying potential postoperative complications. This report describes a unique complication experienced with ADM use in which ADM conceals the detection of recurrent breast carcinoma.

Current Practice Among Plastic Surgeons of Antibiotic Prophylaxis and Closed-Suction Drains in Breast Reconstruction

Despite their widespread use, there are no evidence-based guidelines on the management of closed-suction drains or antibiotics in postmastectomy breast reconstruction. The purpose of this study was to assess consensus and variation in postoperative care among plastic surgeons. The authors designed and administered a self-reported, anonymous survey to 4669 American Society of Plastic Surgeons and Canadian Society of Plastic Surgeons members in October 2009. A total of 650 completed surveys were available for analysis. A majority (>81%) of respondents reported using closed-suction drains in breast reconstruction. Most surgeons (>93%) used a volume criteria for drain removal, most commonly when drain output was ≤30 mL over 24 hours (>86%). Preoperative antibiotic use was nearly universal (98%), usually consisting of intravenous cefazolin (97%). Postoperative care demonstrated less uniformity with outpatient antibiotics administered by 72% of respondents. Surgeons were divided on when to discontinue outpatient antibiotics: 46% preferred concomitant discontinuation with drains, whereas 52% preferred a specific postoperative day. No clear consensus was observed for the number (1 or 2) or type (Jackson-Pratt or Blake) of drains used. Respondents were further divided on the restriction of postoperative showering with drains and the use of acellular dermal matrix. These results demonstrate a consensus for drain use, drain removal, and preoperative antibiotic administration. There was no consensus for number or type of drain used, postoperative antibiotic use, shower restrictions, and use of acellular dermal matrix. Our results further emphasize the need for evidence-based postoperative-care guidelines specific to breast reconstruction.

Postoperative Complications in Prosthesis-Based Breast Reconstruction Using Acellular Dermal Matrix

Acellular dermal matrix has become a common adjunct in prosthesis-based breast reconstruction. The authors' aim was to determine whether acellular dermal matrix use in immediate prosthesis-based breast reconstruction is associated with higher rate of complications. Over a 5½-year period at the Brigham and Women's Hospital, 470 postmastectomy defects were reconstructed immediately using tissue expanders or implants. These were divided into two groups: reconstructions with or without acellular dermal matrix. Data were collected on patient comorbidities, radiation, intraoperative tumescent solution use, prosthesis size, initial fill volume, and complications. The risk for major infections that required prosthesis removal was elevated in the acellular dermal matrix group (4.9 versus 2.5 percent), but this increase did not reach statistical significance (p = 0.172). There was a statistically significant increase in overall wound infection rate in the acellular dermal matrix group (6.8 versus 2.5 percent, p = 0.031), but in a multivariate analysis, the use of acellular dermal matrix did not materialize as a significant risk factor for overall wound infection. Overall surgical complication rate was significantly higher in the acellular dermal matrix group at 19.5 percent, compared with the non-acellular dermal matrix group at 12.3 percent (p < 0.001). Other significant risk factors for overall surgical complication included smoking, higher body mass index, higher initial volume, and larger implant size. Patient selection for prosthesis reconstruction involving acellular dermal matrix should be judicious, especially among smokers and patients with elevated body mass index. Even though the use of acellular dermal matrix allows higher initial volumes and reduced number of expansions, one should be careful about putting in too high of an initial volume.

Acellular Dermal Matrix in the Treatment and Prevention of Exposed Vertical Expandable Prosthetic Titanium Ribs

Case series. To illustrate the use of acellular dermal matrix (ADM) in treatment and prevention of exposed vertical expandable prosthetic titanium rib (VEPTR) implants. In the pediatric population with severe kyphoscoliosis, VEPTR is an effective tool during growth for the correction of ribcage deformity. Prolonged VEPTR therapy can result in wound breakdown, implant exposure, and infection. Treatment includes the use of prolonged antibiotics, muscle flaps, and, when salvage fails, removal of the VEPTR. The use of ADM in the treatment and prevention of VEPTR exposure has not been previously described. Between January 2002 and January 2010, eight patients who underwent placement of ADM for the treatment and prevention of exposed VEPTR devices were identified. Their records were reviewed for diagnosis, sex, age of patient at initial VEPTR placement, position of VEPTR placement, number of VEPTR expansions, wound complications, ADM use, adjunct procedures, and length of wound follow-up. ADM was used in eight patients. In five patients ADM was used for compromised soft tissue overlying the VEPTR and threatened exposure of the hardware. In these cases, subsequent expansions occurred without incident and the wound remained stable with an average follow-up of 7.6 months. In three patients, ADM was used for exposed VEPTR hardware secondary to wound breakdown. Average follow-up was 3.3 months. In two of the three cases of exposed and contaminated hardware, stable soft tissue coverage was achieved and continued VEPTR therapy was achieved. One of the three cases of exposure involved infected and prominent hardware with purulence. This patient failed to clear the infection and required complete device removal. ADM can treat and prevent exposed VEPTR, allowing subsequent VEPTR expansions and minimizing the need for muscle flap coverage and/or implant removal and replacement.

The Use of Acellular Dermal Matrix in Release of Burn Contracture Scars in the Hand

Contracture deformities of the upper extremity are encountered frequently in burn victims. Surgical repair of this problem is challenged by a paucity of soft tissue, poor functional outcome, and a high rate of recurrence. Acellular dermal matrix has become increasingly popular in reconstructive surgery--at times--as an alternative to local and free tissue transfer in different parts of the body. However, its applicability in contracture release, particularly in hand surgery, has not been widely explored. Nine patients with burn contracture scars involving different locations in the hand and the wrist underwent two-stage reconstruction consisting of contracture release and use of acellular dermal matrix followed by definitive coverage with skin graft at the second stage. Patients were followed up for a period of at least 10 months (range, 10 to 25 months), during which time the passive range of motion of the hand was used as a quantitative measure of surgical outcome. All nine patients retained at least 83 percent of the corrected range of motion involving the affected joints by 1 year and at least 89 percent of correction at each webspace. No patient required a revision procedure. Acellular dermal matrix can be an effective tool in surgical treatment of difficult burn contracture deformity in the hand, with lasting results.

The Use of Acellular Dermal Matrix in Reconstruction of Complex Scalp Defects

Multi-focal basal or squamous cell carcinomas of the scalp, as well as recurrent tumors or previously irradiated lesions, always require large full thickness excision to achieve successful and complete healing. Loco-regional or micro-vascular flaps are the gold standard for closure of complex defects of the scalp but in some, especially older, patients, these techniques may be contraindicated. Over the last few years, the introduction of dermal substitutes has improved wound healing and modified surgical strategies in the treatment of complex tissue loss. Matriderm s (Eurosurgical Limited, Guildford, UK) is an acellular dermal substitute constituted by a matrix of type 1 bovine collagen and elastin, with a thickness of 1 to 2mm and pores of about 75mm. Since its introduction in clinical practice, it has been used in the reconstruction of tissue following burns or complex wounds, 1,2 but few studies have focused on its use in the craniofacial region and no studies appear to have evaluated its usefulness in scalp reconstruction. Herewith, we report our personal experience using this acellular dermal matrix in a complex scalp reconstruction, comparing the esthetic outcome to that of a previous full-thickness skin graft in the same region.

Acellular Dermal Matrix for the Treatment and Prevention of Implant-Associated Breast Deformities

Acellular dermal matrix has been increasingly accepted in prosthetic breast reconstruction. Observed benefits include improved control and support of implant position, better implant coverage, and the suggestion of a decreased capsular contracture rate. Based on this positive experience, it is not surprising that acellular dermal matrix would be applied to other challenging implant-related problems. This study investigates the use of acellular dermal matrix for correction or prevention of implant-associated breast deformities. Patients who underwent primary aesthetic breast surgery or secondary aesthetic or reconstructive breast surgery using acellular dermal matrix and implants between November of 2003 and October of 2009 were reviewed retrospectively. Patient demographics, indications for acellular dermal matrix, and acellular dermal matrix type and inset pattern were identified. Preoperative and postoperative photographs, success or failure of the procedure, complications, and need for related or unrelated revision surgery were recorded. Fifty-two patients had acellular dermal matrix placed alongside 77 breast prostheses, with a mean follow-up of 8.6 months (range, 0.4 to 30.4 months). Indications included prevention of implant bottoming-out (n = 6), treatment of malposition (n = 32), rippling (n = 20), capsular contracture (n = 16), and skin flap deficiency (n = 16). Seventy-four breasts (96.1 percent) were managed successfully with acellular dermal matrix. Three failures consisted of one breast with bottoming-out following treatment of capsular contracture, one breast with major infection requiring device explantation, and one breast with recurrent rippling. There was a 9.1 percent total complication rate, consisting of three mild infections, one major infection necessitating explantation, one hematoma, and one seroma. Based on this experience in 77 breasts, acellular dermal matrix has shown promise in treating and preventing capsular contracture, rippling, implant malposition, and soft-tissue thinning.