Abstract:
:Recently, there have been many new designs in both the surface texture and chemical composition of breast implants that claim reduced constrictive capsular formation. The purpose of this study was to utilize a quantitative method to determine the firmness of capsules formed around saline-filled smooth silicone, textured silicone, and polyurethane implants in an experimental rabbit model 1 year after implantation. Our objective was to analyze the histologic, biologic, and biochemical content of the respective capsules to account for any differences in physical behavior. Forty-five smooth silicone, textured silicone, and polyurethane implants were placed in one of three positions beneath the panniculus carnosus muscle of New Zealand White rabbits. After 1 year, all capsules were palpated and classified according to firmness. Intracapsular static and dynamic pressure measurements were obtained by placing a pressure monitor (Stryker) in an injector port attached to the individual implants. Capsular firmness was significantly greater in the textured silicone implants than in the smooth silicone or polyurethane implants after 1 year. The dynamic qualities of the periprosthetic soft tissues were measured while saline was injected into the implants. The capsules around the textured silicone implants generated significantly higher pressures than the smooth silicone or polyurethane counterparts. The capsules around the polyurethane implants were the softest and most compliant in all categories. Histologically, there is a significant inflammatory response surrounding the textured silicone implants that does not exist in the capsules around the smooth silicone implants. The capsules around the polyurethane implants have the least fibrous tissue deposition. There is a decrease in the proportion of type III collagen in the capsules around the textured silicone implants versus smooth silicone or polyurethane implants. The in vitro contraction patterns of the fibroblast-populated collagen lattices do not reveal the contraction differences observed in vivo in rabbits. However, there are many components that determine contractility. This area deserves further investigation.
journal_name
Plast Reconstr Surgjournal_title
Plastic and reconstructive surgeryauthors
Bucky LP,Ehrlich HP,Sohoni S,May JW Jrdoi
10.1097/00006534-199405000-00002subject
Has Abstractpub_date
1994-05-01 00:00:00pages
1123-31; discussion 1132-3issue
6eissn
0032-1052issn
1529-4242journal_volume
93pub_type
杂志文章abstract::We propose a simple one-stage procedure for nipple reconstruction. The fundamental basis, the technique itself, and the results obtained demonstrate that a single-flap reconstruction achieves a nipple that will keep its shape 15 months later. ...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-198406000-00026
更新日期:1984-06-01 00:00:00
abstract:BACKGROUND:Peripheral neuropathy is highly prevalent among patients with diabetes mellitus and demonstrates well-established consequences of limb loss following lower extremity ulceration, infection, and amputation and upper extremity loss of function. Symptomatic neuropathy is recognized by neuropathic pain, paresthes...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章,评审
doi:10.1097/PRS.0b013e31820063d4
更新日期:2011-01-01 00:00:00
abstract::Low-energy lasers are currently being used in the therapy of rheumatoid arthritis, chronic pain, muscle strain, and the promotion of wound healing in human and veterinary medicine. This study examined the effects of low-energy laser on skin-flap survival in a controlled interspecies study using the rat and porcine mod...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-199202000-00017
更新日期:1992-02-01 00:00:00
abstract:BACKGROUND:Microsurgical lymphaticovenous implantation in lymphedema is done to create a lymphaticovenous shunt by an implantation of collecting lymphatics into the small vein, as reported previously. The authors have recently introduced ultrasonograpy and indocyanine green fluorescence lymphography into this procedure...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/PRS.0b013e31820cf2e2
更新日期:2011-05-01 00:00:00
abstract::The theoretical applications and advantages of the scanning microscope in peripheral nerve research are presented. The internal anatomy of the peripheral nerve can be distinctly examined, and long segments of axons can be examined without the necessity of tedious study of multiple sections. The SEM should make it poss...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-197904000-00012
更新日期:1979-04-01 00:00:00
abstract::Two cases of late infection following aesthetic malar augmentation with Proplast implants are described. The etiology appears to be contamination because of erosion of the implants through the thin wall of the anterior maxilla. This problem might be avoided by confining placement of the implant over the thick portion ...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-199502000-00021
更新日期:1995-02-01 00:00:00
abstract:BACKGROUND:Platelet-rich plasma contains high concentrations of growth factors that stimulate proliferation and migration of various cell types. Earlier experiments demonstrated that local platelet-rich plasma administration activates Schwann cells to improve axonal regeneration at a transected peripheral nerve lesion....
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/PRS.0000000000006266
更新日期:2019-12-01 00:00:00
abstract:BACKGROUND:Reduction mammaplasty has been shown to be efficacious in reducing the burden of symptoms and improving the quality of life for patients with macromastia. However, most insurance carriers will not reimburse for mammaplasties involving less than 1000 g of total tissue resected. To refute this arbitrary policy...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/01.prs.0000277660.49802.76
更新日期:2007-09-15 00:00:00
abstract::With the first wave of bioactive sutures already in the marketplace, research is ongoing in the development of future products. Such sutures could potentially have not only antimicrobial activity but also anesthetic and antineoplastic functions. Some clinical trials have already been completed in Russia. This technolo...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章,评审
doi:10.1097/01.prs.0000248418.23513.1f
更新日期:2006-12-01 00:00:00
abstract::Our experience with 20 full-thickness cheek reconstruction in 17 patients over the past 27 years is presented. The evolution of techniques for management of full-thickness cheek defects reflects our gradual appreciation of the longitudinal artery concept within axial and musculocutaneous flap units. During the 1950s, ...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-198209000-00004
更新日期:1982-09-01 00:00:00
abstract:SUMMARY:Gynecomastia, or persistent enlargement of the male breast, is a common occurrence during early sexual development. Typically, two types of tissue can be identified during this period of growth. Initially, a dense fibrous growth of supporting stroma and breast tissue forms directly under the areola, creating a ...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/PRS.0b013e3181aa2dc7
更新日期:2009-07-01 00:00:00
abstract:BACKGROUND:Arteriovenous loops are an indispensable tool in free flap surgery when appropriate recipient vessels are missing. In this study, the authors analyzed whether the outcome differs when flaps were transferred simultaneously or subsequently after construction of arteriovenous loops. METHODS:Twenty-seven patien...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/01.prs.0000282102.19951.6f
更新日期:2007-11-01 00:00:00
abstract::Four patients with pyoderma gangrenosum were treated with hyperbaric oxygen to prepare the wounds for skin grafting. Each wound responded to a course of daily hyperbaric oxygen with reduction of infection and increased capillary angiogenesis. During follow-up periods of 12 to 30 months, all wounds remained healed. Alt...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:
更新日期:1987-02-01 00:00:00
abstract::Twenty-six nail deformities secondary to ganglions of the distal interphalangeal joint were retrospectively reviewed to assess the important aspects of their management. The patients' ages ranged from 41 to 79 years. The long and index fingers were most commonly involved. A depression or groove was present in 23 of 26...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-199104000-00017
更新日期:1991-04-01 00:00:00
abstract::Plagiocephaly is a term commonly used to describe congenital forehead asymmetry. Sixty patients with frontal plagiocephaly were evaluated retrospectively and separated into three types: synostotic (N = 24), compensational (N = 3), and deformational (N = 33). Categorization of frontal plagiocephaly as synostotic or def...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:
更新日期:1992-01-01 00:00:00
abstract::This case describes a repair of a unilateral cleft lip complicated by a lip hemangioma. The relevant issues regarding timing of the repair include safety of the procedure by minimizing blood loss during excision of the hemangioma and minimizing anesthesia risk. In obtaining a lasting cosmetic result, excision of the h...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-199701000-00035
更新日期:1997-01-01 00:00:00
abstract::The challenge of the current graduate medical education environment requires in plastic surgery acceptance of those contemporary pressures that cannot be substantially modified and address of those that can be successfully met. To do so implies an examination of conference didactics, intraoperative teaching, and a val...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章,评审
doi:10.1097/01.prs.0000479982.67922.8a
更新日期:2016-03-01 00:00:00
abstract:BACKGROUND:Several studies have confirmed a correlation between the concentration of serum hyaluronan and progressive fibrotic disorders such as liver cirrhosis. The aim of this study was to explore the relationship between serum hyaluronan levels and capsular contracture after aesthetic breast augmentation. METHODS:T...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/01.prs.0000220462.28928.83
更新日期:2006-07-01 00:00:00
abstract::Lymphedema is a chronic disorder that, in developed countries, occurs most commonly after lymph node dissection for cancer treatment. Although the pathophysiology of lymphedema is unknown, the disease is characterized histologically by fibrosis and abnormal adipose deposition. Clinical studies have provided evidence t...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章,评审
doi:10.1097/PRS.0000000000000268
更新日期:2014-07-01 00:00:00
abstract:BACKGROUND:Craniofacial dysostosis syndromes produce multisutural synostoses combined with severe midfacial retrusion. This may cause serious functional problems, including airway obstruction, exposure of the eyes, visual pathway dysfunction, and raised intracranial pressure. Early midface advancement may be necessary ...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/01.prs.0000305538.75347.52
更新日期:2008-04-01 00:00:00
abstract::The surgical correction of vertical malpositions of the human eye has been made relatively safe and reliable by recent surgical techniques. The authors define this condition as vertical orbital dystopia and review the etiology of this deformity in 38 recent consecutive cases that were surgically treated at the Craniof...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:
更新日期:1981-02-01 00:00:00
abstract:BACKGROUND:Nerve transfer surgery has revolutionized the management of traumatic brachial plexus injures. However, the optimal size ratio of donor to recipient nerve has yet to be elucidated. The authors investigated the axon count ratios of ulnar and median fascicular transfers to restore elbow flexion. The authors hy...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/PRS.0000000000000795
更新日期:2015-01-01 00:00:00
abstract::The role of craniofacial surgical techniques and immediate bone grafting in the management of complex craniofacial trauma has been reviewed. Four hundred and one patients with complex facial injuries have been treated. Two hundred and forty-one primary bone and cartilage grafts have been performed in 66 patients. Comp...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-198501000-00005
更新日期:1985-01-01 00:00:00
abstract::At the University of Virginia Hospital we have developed a new technique of urethroplasty utilizing a full-thickness flap of bladder wall. Tubing and transfer of the flap may be completed in two stages. The bladder flap is approximately 28 X 4 cm in size. Strictures have not occurred with this technique, but special c...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-198408000-00015
更新日期:1984-08-01 00:00:00
abstract:BACKGROUND:On January 1, 2011, New York State amended the Public Health Law to ensure that patients receive "information and access to breast reconstruction surgery." The purposes of this study were to investigate the early impact of this legislation on reconstruction rates and to evaluate the influence of patient vari...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/PRS.0000000000000888
更新日期:2015-02-01 00:00:00
abstract::A prospective study was performed on 16 unoperated patients with frontal plagiocephaly to characterize the relationship between strabismus and abnormal head posture. Serial eye examinations were performed preoperatively and for 24 to 46 months following fronto-orbital advancement. In 14 patients (88 percent), preopera...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-199604001-00001
更新日期:1996-04-01 00:00:00
abstract:BACKGROUND:Although the use of free flaps has become a major option for head and neck reconstruction, the pectoralis major myocutaneous flap still plays an important role because of its advantages and its convenience as a pedicle flap located adjacent to head and neck lesions. However, there remain two problems with th...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/PRS.0b013e31819f2967
更新日期:2009-04-01 00:00:00
abstract::The lower trapezius island myocutaneous flap is a useful flap in head and neck reconstruction. It is thin and pliable and can reach defects in most areas of the head and neck. Its usefulness in head and neck reconstruction has often been limited or discouraged by reports of significant failure rates. In this study, th...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-200004050-00025
更新日期:2000-04-01 00:00:00
abstract:BACKGROUND:Prevention of recurrent eyebrow ptosis is the greatest challenge in brow lift surgery today. In this article, the author describes a new surgical procedure to provide long-lasting results in brow lift surgery. METHODS:Over 7 years, this new technique was used in 37 patients. Except for four, all patients we...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/01.prs.0000182601.94805.58
更新日期:2005-10-01 00:00:00
abstract:BACKGROUND:Carpal tunnel syndrome is very common. Although surgery is effective in mild and moderate cases, recovery is often incomplete in severe cases. Therefore, adjuvant therapy to improve nerve regeneration in those patients is much needed. Acetyl-L-carnitine has been shown to be effective in other neuropathies. T...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章,随机对照试验
doi:10.1097/PRS.0000000000005089
更新日期:2019-01-01 00:00:00