Abstract:
:Our study of experimental contracture in rats confirms the existence in laboratory animals of a phenomenon very much like human capsule contracture. The ultrastructural features of capsules in rats are essentially identical to those for humans and rabbits. Macrophages with silicon-containing material were present. Star-shaped myofibroblasts with extended processes appeared in contracted and noncontracted capsules. The myofibroblasts contained bundles of 60 to 80 A microfilaments with included dense bodies, convoluted nuclei, and extensive peripheral vesiculation. The myofibroblasts tended to be associated with more extensive ground substance and smaller diameter extracellular fibrils than were normal synthetic fibroblasts. The incidence of contracture was similar for implants beneath different amounts of overlying soft tissue dorsally and sternally, while compressibility and subjective softness were greater for implants beneath lesser amounts of overlying tissue. A greater mass of capsule formed beneath the heavier covering, however, suggesting that in clinical experience, cosmetically more acceptable results from submuscular prosthesis placement are probably due to a padding effect. Capsule glycosaminoglycans were primarily hyaluronic acid and dermatan sulfate. The occurrence of myofibroblasts in these capsules at a relatively late period (26 weeks) implicates myofibroblasts in the contracture mechanism, but details are still unknown. Contracture is a property of the capsule tissue; preliminary observations suggest that its occurrence is independent of species, anatomical site, surgical procedure, presence of extruded gel, presence of myofibroblasts, capsule thickness, or protein, collagen, or glycosaminoglycan composition. Cells within the capsule were geometrically asymmetrical, being extremely flattened in the plane parallel to the prosthesis surface.
journal_name
Ann Plast Surgjournal_title
Annals of plastic surgeryauthors
Ksander GA,Vistnes LM,Kosek Jdoi
10.1097/00000637-198103000-00003subject
Has Abstractpub_date
1981-03-01 00:00:00pages
182-93issue
3eissn
0148-7043issn
1536-3708journal_volume
6pub_type
杂志文章abstract:INTRODUCTION:Hand photography is effective and advantageous for assessing functional deficits and improvements related to surgery. In this study, it is aimed to investigate whether the correct active range of motion (ROM) is masked by the passive ROM in a wrist joint. METHOD:Eleven patients who were treated for unilat...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/SAP.0000000000001845
更新日期:2019-06-01 00:00:00
abstract::The use of tissue expansion to facilitate burn scar reconstruction is described. Twelve patients underwent burn scar reconstruction using a total of 42 expanders. Expansion was carried out at two- to three-day intervals, usually commencing as early as two to three days following insertion of the expander. In 5 of the ...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/00000637-198903000-00007
更新日期:1989-03-01 00:00:00
abstract::Current practice of autologous fat transfer for soft tissue augmentation is limited by poor long-term graft retention. Adipose-derived regenerative cells (ADRCs) contain several types of stem and regenerative cells, which may help improve graft retention through multiple mechanisms. Using a murine fat transplantation ...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/SAP.0b013e31819ae05c
更新日期:2010-02-01 00:00:00
abstract::An osteomyelitic defect of the posterior superior iliac spine was filled with a rectus abdominis island pedicle flap passed beneath the transversalis fascia and through the preperitoneal and retroperitoneal spaces. This maneuver extends the arc of rotation of this flap to the posterior rim of the pelvis and increases ...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/00000637-198906000-00012
更新日期:1989-06-01 00:00:00
abstract::Anterolateral ankle pain can persist despite the best care of sprains or fractures. It is possible that this pain is related to stretch or traction injuries to the nerves that innervate the subtalar joint. If this were true, identification of these nerve branches by local anesthetic block would provide an indication t...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/00000637-200111000-00005
更新日期:2001-11-01 00:00:00
abstract::The medial sural MEDIAL GASTROCNEMIUS perforator flap is a potentially large, thin cutaneous flap that encompasses the calf skin territory. Its medial sural vascular pedicle has a long leash of large caliber that simplifies microanastomoses when used as a free flap. Because the identification of the requisite perforat...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/01.sap.0000095438.33962.31
更新日期:2004-02-01 00:00:00
abstract::The medial canthus is supported by several structures with a complicated 3-dimensional arrangement in a narrow space. Although the medial canthal tendon occupies a major portion of the area, the medial canthal support structures include the following entities: Horner's muscle, the medial rectus capsulopalpebral fascia...
journal_title:Annals of plastic surgery
pub_type: 杂志文章,评审
doi:10.1097/SAP.0b013e3182a6365c
更新日期:2015-04-01 00:00:00
abstract::Successful salvage of the tongue following near or complete traumatic amputation is a rare event. We now report only the second reported successful case of a revascularization of a near or complete amputation of the tongue while in the setting of massive facial trauma. Microscopic revascularization was performed utili...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/01.sap.0000194945.84826.fd
更新日期:2006-02-01 00:00:00
abstract::This study has demonstrated that microcrystalline collagen is useful for controlling hemorrhage from an area where microvascular anastomoses are being performed, and that microcrystalline collagen does not adversely affect patency rates of microvascular repairs even when applied directly to the anastomosis itself. ...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/00000637-198212000-00004
更新日期:1982-12-01 00:00:00
abstract::Activator protein 1 (AP-1) is thought to play an important role in the expression of genes expressed in response to ischemia-reperfusion injury. In this report, the activation of AP-1 in rat skeletal muscle during reperfusion after a 4-hour ischemic period was studied. AP-1 activation displayed a biphasic pattern, sho...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/00000637-200212000-00016
更新日期:2002-12-01 00:00:00
abstract::Surgical procedures commonly associated with parenteral sedation or general anesthesia were completed in an office operating room with local anesthesia and oral medication. Diazepam and alprazolam were used in combination to produce a relaxed state, allowing local anesthesia to be instilled. Surgery was completed succ...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/00000637-200044050-00007
更新日期:2000-05-01 00:00:00
abstract::Peripheral nerve gap injuries continue to present a clinical challenge to today's surgeons. One method of surgical repair, implantation of acellular allografts, has been developed with the aim of bridging the gap with a cadaveric graft after removal of its cellular components, thereby accelerating axonal regeneration ...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/SAP.0000000000001464
更新日期:2018-08-01 00:00:00
abstract:BACKGROUND:Suboptimal pain management is a common, yet largely unrecognized, problem in the postsurgical patient population. Current treatment protocols heavily rely on opioid use and, though generally effective in providing pain relief, are associated with multiple side effects. The present systematic review aims to o...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/SAP.0000000000001916
更新日期:2019-12-01 00:00:00
abstract::Carpal tunnel decompression (CTD) is the most commonly performed surgical procedure within a hand unit. We have analyzed data on outcomes after carpal decompression performed by both open and closed techniques to assess whether outcomes differed between the 2 procedures. Data were jointly gathered from 2 units. The ai...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/SAP.0000000000000267
更新日期:2015-11-01 00:00:00
abstract::Nitric oxide (NO), identified as the mediator of endothelium-dependent relaxation of vascular smooth muscle, is known to cause a number of inflammatory conditions, especially in ischemia/reperfusion injury. This experimental study, using a rabbit epigastric island flap, was designed to investigate whether skin flap is...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/00000637-199712000-00009
更新日期:1997-12-01 00:00:00
abstract::A technique used concomitantly with Rethi's incision to reach and treat the secondary nasal tip is described. The technique involves removing the cartilage remnants of both domes and placing a shaped cartilage autograft that is immobilized by sutures. No hypertrophic scarring has been observed in the 546 patients trea...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/00000637-198604000-00008
更新日期:1986-04-01 00:00:00
abstract::Reconstruction of intraoral defects is one of the main aspects of head and neck cancer treatment. Since the advent of microvascular surgery in this field, free flap tissue transfer has become a common procedure, and various flaps have been described for soft tissue reconstruction. The lateral upper arm free flap is on...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/SAP.0000000000001876
更新日期:2019-12-01 00:00:00
abstract:BACKGROUND:Prophylactic mastectomy is more common, with many patients seeking reconstruction. Bilateral free flap reconstructions subject patients to 2 flaps and longer operations, potentially increasing their risk for complications. We hypothesized that bilateral abdomen-based free flap reconstruction patients are a u...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/SAP.0000000000000343
更新日期:2016-01-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to reveal the effect of angiotensin (1-7) on survival of random pattern, nicotinized, ischemic flap model in rats. MATERIALS AND METHODS:We used female Sprague Dawley rats weighing between 250 and 300 g. The study was performed on 3 groups each of them was consisted of 30 rats (...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/SAP.0b013e3182069bfd
更新日期:2012-01-01 00:00:00
abstract::In previous studies, we were able to demonstrate baseline non-augmented cadaveric silicon tissue values as well as silicone-augmented breast capsular tissue silicon levels from various geographic locations in the United States. One of the limitations of these previous studies was the potential for intracapsular variat...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/00000637-199612000-00004
更新日期:1996-12-01 00:00:00
abstract::Six patients underwent percutaneous pin placement, 17 intraoral corticotomies, and application of an Orthofix lengthening device to facilitate complex multiplanar distraction as mandated by the patient's specific deformity. The patients underwent gradual bony and soft-tissue distraction at the rate of .25 mm four time...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/00000637-199502000-00004
更新日期:1995-02-01 00:00:00
abstract:BACKGROUND:Lymphedema, a chronic disfiguring condition resulting from lymphatic dysfunction or disruption, can be difficult to accurately diagnose and manage. Of particular challenge is identifying the presence of clinically significant limb swelling through simple and noninvasive methods. Many historical and currently...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/01.sap.0000244977.84130.cf
更新日期:2007-05-01 00:00:00
abstract::Chain saws may produce devastating facial injuries when the blade kicks back after striking a hard object. A review of experience with 12 male patients indicates that in addition to extensive ragged lacerations of skin and soft tissues, bone and teeth are frequently fractured. Eye injuries are rare, but the eyelids ma...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/00000637-198602000-00001
更新日期:1986-02-01 00:00:00
abstract::Estrogenic steroids have been used as hemostatic agents in various surgical procedures in humans. Their use to reduce bleeding has been based mainly on clinical observation. The present study was carried out to test experimentally whether intravenously administered Premarin reduces capillary bleeding. Skin-graft donor...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/00000637-198205000-00005
更新日期:1982-05-01 00:00:00
abstract::The aim of this study is to compare laser nerve welding of hypoglossal-facial nerve to microsurgical suturing and a result of immediate and delayed repair, and to evaluate the effectiveness of laser nerve welding in reanimation of facial paralysis of the rabbit models. The first group of 5 rabbits underwent immediate ...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/SAP.0b013e31815f12a5
更新日期:2008-10-01 00:00:00
abstract:PURPOSE:The aim of this study was to demonstrate the viability of the transverse circumflex scapular artery perforator flap (TCSAPF) in children with soft tissue defects of the lower limb. METHODS:In an anatomic study, 25 fresh cadavers were injected with lead oxide-gelatin for spiral computed tomography and 3-dimensi...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/SAP.0000000000002365
更新日期:2020-05-01 00:00:00
abstract:BACKGROUND:Measurement of extremity volume is the most commonly used method for evaluation of lymphedema. However, volumetry would be inappropriate for comparing patients with different physiques, because body-type significantly affects extremity volume. Thus, we cannot evaluate using absolute values. To overcome this ...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/SAP.0000000000002505
更新日期:2021-01-01 00:00:00
abstract:PURPOSE:The purpose of this study was to review a single surgeon's experience with using the thoracodorsal artery perforator (TAP) flap for coverage of axillary defects. METHODS:This is a retrospective review of all flaps performed by the senior author (D.W.L.) after excision of axillary hidradenitis between 2004 and ...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/SAP.0b013e31824b3d4a
更新日期:2012-10-01 00:00:00
abstract::After 30 years of clinical use, the 1992 Food and Drug Administration moratorium on silicone gel breast implants (SGBIs) resulted from a paucity of scientific data concerning their safety. The frequency of rupture and reoperative procedures was not known, nor were reliable data available for changes in the physical pr...
journal_title:Annals of plastic surgery
pub_type: 杂志文章,meta分析
doi:10.1097/00000637-200209000-00001
更新日期:2002-09-01 00:00:00
abstract::In an effort to standardize use of the dorsal rat flap model originally described by McFarlane, we determined the following. The effect of delay is readily demonstrated but does not prevent necrosis entirely. Almost all flaps showed some necrosis, but delayed flaps showed approximately 15% less necrosis. Measurement o...
journal_title:Annals of plastic surgery
pub_type: 杂志文章
doi:10.1097/00000637-198309000-00006
更新日期:1983-09-01 00:00:00