Abstract:
:Distraction osteogenesis has become an accepted method of treatment for patients requiring reconstruction of hypoplastic mandibles. We present a quantitative analysis of volumetric changes after distraction osteogenesis in a series of 10 patients. Group I (n = 5 patients, 3 unilateral craniofacial microsomia, 1 Goldenhaar syndrome, and 1 bilateral craniofacial microsomia) underwent unilateral distraction of the mandible. Group II (n = 5 patients, 1 Nager syndrome, 1 bilateral craniofacial microsomia, 1 developmental micrognathia, and 2 Treacher Collins syndrome) underwent bilateral distraction of the mandible. Predistraction and postdistraction axial and three-dimensional computed tomographic (CT) scans were digitized and transferred to a computer for analysis with image-processing software to determine the changes in volume of the mandible and bony regenerate. The CT-derived volume method was validated by scanning three dry cadaver mandible specimens and comparing the volume data with those derived from a water-displacement method. The difference between the two methods was less than 5 percent. The mean distracted length, as recorded from the calibrated device, was 22.6 mm in the 10 patients. In the unilateral distraction group, the mean increase in hemimandibular bone volume was 2.8 cc, with a mean percentage increase of 27 percent in the distracted hemimandible. In the bilaterally distracted patients, the mean increase in total mandibular volume was 7.9 cc, with a mean percentage increase in bone volume of 25 percent. This study represents the first attempt to quantify the increase in bone volume resulting from distraction osteogenesis. Quantitative volumetric analysis of CT scans is an accurate method to measure the amount of bone regenerate in patients undergoing distraction osteogenesis of the mandible or the extremities. The concept and utility of quantifying the volumetric changes in bone following distraction osteogenesis may become more important as multiplanar devices are developed and used in other areas of the craniofacial skeleton.
journal_name
Plast Reconstr Surgjournal_title
Plastic and reconstructive surgeryauthors
Roth DA,Gosain AK,McCarthy JG,Stracher MA,Lefton DR,Grayson BHdoi
10.1097/00006534-199704001-00005subject
Has Abstractpub_date
1997-04-01 00:00:00pages
1237-47; discussion 1248-50issue
5eissn
0032-1052issn
1529-4242journal_volume
99pub_type
杂志文章abstract::Rehydrated freeze-dried microarterial allografts were implanted to bridge arterial defects using New Zealand White rabbits as the experimental model. Segments of artery from the rabbit ear and thigh were harvested and preserved for a minimum of 2 weeks after freeze-drying. These allografts, approximately 1 mm in diame...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-199002000-00014
更新日期:1990-02-01 00:00:00
abstract::Microsurgical transfer of the superficial and deep temporal fascia based on the superficial temporal vessels has been documented. This article analyzes the functional recovery when each layer of this facial flap is placed on either side of reconstructed or repaired tendons, to recreate a gliding environment. This fasc...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-200111000-00031
更新日期:2001-11-01 00:00:00
abstract::Although it is one of the most commonly occurring craniofacial congenital disabilities, craniosynostosis (the premature fusion of cranial sutures) is nearly impossible to prevent because the molecular mechanisms that regulate the process of cranial suture fusion remain largely unknown. Recent studies have implicated t...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:
更新日期:2000-09-01 00:00:00
abstract::Although endothelial cell injury and microcirculatory intravascular thrombosis have been implicated in the pathophysiology of skin-flap failure, the basic underlying pathophysiology has not been documented previously. This study focuses on the morphologic changes and the alteration in platelet, fibrinogen, antithrombi...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-199402000-00024
更新日期:1994-02-01 00:00:00
abstract:BACKGROUND:The graying of our population has motivated the authors to better understand age-related impairments in wound healing. To increase research throughput, the authors hypothesized that the Hutchinson-Gilford progeria syndrome Zmpste24-deficient (Zmpste24(-/-)) mouse could serve as a model of senescent wound hea...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/PRS.0b013e31826d102b
更新日期:2012-12-01 00:00:00
abstract:BACKGROUND:Most managed care plans use a physician "gatekeeper" to control referrals to hand surgeons. The appropriateness of this model for upper extremity complaints has never been challenged. The purpose of this study was to evaluate the prior management of patients with elective hand disorders who present to a hand...
journal_title:Plastic and reconstructive surgery
pub_type: 临床试验,杂志文章
doi:10.1097/PRS.0b013e31829acc74
更新日期:2013-09-01 00:00:00
abstract:BACKGROUND:Seventy-five percent of nonmelanoma skin cancers are located in the head and neck area, of which 30 percent occur on the nose (225,000 new cases per year). The aim of this study was to develop a nasal reconstruction algorithm for nasal defects, based on experience with 788 consecutive nasal reconstructions p...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/PRS.0b013e3181da872e
更新日期:2010-07-01 00:00:00
abstract:BACKGROUND:Adipose-derived mesenchymal stem cells are a robust, multipotent cell source. They are easily harvested and exhibit promise in a variety of regenerative applications. The purpose of this study was to evaluate the aging impact on adipose-derived mesenchymal stem cells, relating to morphology, senescent proper...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/PRS.0b013e3182729cfc
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND:Data from large-scale studies of breast reconstruction surgery outcomes and downstream costs are lacking. The authors assessed outcomes, patient return rates, and costs across a large, geographically diverse patient population undergoing autologous breast reconstruction. METHODS:Insurance claims for patient...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/PRS.0000000000000064
更新日期:2014-03-01 00:00:00
abstract::A case is presented of a congenital nasal deformity consisting of a midline nasal muscle, alar cartilage defect, and partially obstructed nostril. The embryology of nasal development is reviewed, and an attempt is made to explain this unique anomaly. ...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-198103000-00015
更新日期:1981-03-01 00:00:00
abstract:BACKGROUND:Pierre Robin sequence is characterized by mandibular retrognathia and glossoptosis resulting in airway obstruction and feeding difficulties. When conservative management fails, mandibular distraction osteogenesis or tongue-lip adhesion may be required to avoid tracheostomy. The authors' goal was to prospecti...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/PRS.0000000000003167
更新日期:2017-04-01 00:00:00
abstract:BACKGROUND:In women who require postmastectomy radiation therapy, immediate autologous breast reconstruction is often discouraged. The authors prospectively evaluated postoperative morbidity and satisfaction reported by women undergoing delayed or immediate autologous breast reconstruction in the setting of postmastect...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章,多中心研究
doi:10.1097/PRS.0000000000003331
更新日期:2017-06-01 00:00:00
abstract::The ischemia tolerance of free-muscle flaps was investigated in the rat by orthotopic and syngeneic transplantation of muscle flaps measuring 4 x 2.5 cm. The effects of ischemia with a maximal duration of 7 hours on the raised flaps and of anoxia caused by occlusion of the flap vessels were studied for the first time ...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-199303000-00015
更新日期:1993-03-01 00:00:00
abstract:BACKGROUND:This prospective study was undertaken to determine the safest means of supplemental oxygen delivery for patients undergoing facial cosmetic surgery under conscious sedation. Two common methods of oxygen delivery were used in 20 patients: (1) a nasal cannula and (2) a red rubber nasopharyngeal tube through wh...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/01.prs.0000282729.23202.da
更新日期:2007-11-01 00:00:00
abstract::On the basis of over 100 endoscopic forehead lifts, we present an in-depth view of the current operative technique. The critical components are the following: (1) a subgaleal resection of muscle insertions rather than a subperiosteal approach to muscle origins, (2) a complete periosteal release along the lateral orbit...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-199612000-00003
更新日期:1996-12-01 00:00:00
abstract::Substantial fluid shifts occur during liposuction as wetting solution is infiltrated subcutaneously and fat is evacuated, causing potential electrolyte imbalances. In the porcine model for large-volume liposuction, plasma aspartate aminotransferase and alanine transaminase levels were elevated following liposuction. T...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/01.prs.0000131022.98481.6e
更新日期:2004-09-01 00:00:00
abstract:BACKGROUND:Refinements made in latissimus dorsi breast reconstruction have improved the aesthetic appearance of the breast without changing the donor-site location. The optimal location for donor-site placement, from a patient's perspective, is still unknown. The purpose of this study was to assess women's preference f...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/PRS.0b013e3181de1b41
更新日期:2010-08-01 00:00:00
abstract:BACKGROUND:This work addresses the controversy regarding the indications and results of calcium phosphate cements in skull reconstruction through a meta-analysis of the published literature. METHODS:A PubMed search for articles reporting the use of calcium phosphate cements for skull reconstruction was performed. Data...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章,meta分析,评审
doi:10.1097/PRS.0b013e3181ead057
更新日期:2010-10-01 00:00:00
abstract::A case is reported of bilateral rupture of inflatable implants from a closed capsulotomy, with ingrowth of fibrous tissue through the inflation valves. ...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-197706000-00023
更新日期:1977-06-01 00:00:00
abstract::Electrosurgical coagulation in the presence of blow-by oxygen is a potential source of fire in facial surgery. A case report of a patient sustaining partial-thickness facial burns secondary to such a flash fire is presented. A fiberglass facial model is then used to study the variables involved in providing supplement...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:
更新日期:1995-04-01 00:00:00
abstract:BACKGROUND:Hemicorporectomy involves amputation of the pelvis and lower extremities by disarticulation through the lumbar spine with concomitant transection of the aorta, inferior vena cava, and spinal cord. In addition, conduits are constructed for diversion of both the urinary and fecal streams. Of 57 cases reported ...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/PRS.0b013e3181b61169
更新日期:2009-10-01 00:00:00
abstract:BACKGROUND:The vascular anatomy of the thoracodorsal artery perforator flap, which has not previously been elucidated, was examined using three- and four-dimensional computed tomographic angiography and venography. METHODS:Twenty-five thoracodorsal artery perforator flaps were harvested from fresh cadavers from the We...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/PRS.0b013e31816b1479
更新日期:2008-05-01 00:00:00
abstract:BACKGROUND:Reinfections following implant-based cranioplasty, in the setting of previous bone flap osteomyelitis, are common and associated with significant morbidity. The timing of reconstruction following initial osteomyelitic bone flap removal remains controversial; most advocate for prolonged time intervals of appr...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/01.prs.0000475770.14396.1e
更新日期:2016-02-01 00:00:00
abstract:LEARNING OBJECTIVES:After studying this article, the participant should be able to: 1. Understand the principles involved in canthal support for patients undergoing cosmetic and reconstructive surgery. 2. Understand the variations in surgical techniques required to perform canthal anchoring in differing patients. 3. De...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/01.PRS.0000066340.85485.DF
更新日期:2003-07-01 00:00:00
abstract::The purpose of this study was to compare the sensitivity of a 20-mHz ultrasonic Doppler device to detect microvascular thrombosis placed on the vein with that placed on the artery. A feasibility study in animals preceded a comparative clinical study in patients. Six rabbits were used to develop a bilateral hind limb p...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-199401000-00024
更新日期:1994-01-01 00:00:00
abstract:BACKGROUND:Previous studies have determined specific factors influencing patients with rheumatoid arthritis to choose to undergo reconstructive hand surgery. However, little is known about how rheumatoid arthritis patients are counseled by physicians regarding surgical options and the concerns that cause patients to de...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章,多中心研究
doi:10.1097/PRS.0000000000002083
更新日期:2016-05-01 00:00:00
abstract:BACKGROUND:The serratus anterior flap is commonly used without its cutaneous component and is covered with a skin graft. The authors have successfully used the free serratus anterior flap along with its skin paddle and have found it to be valuable for reconstruction of the face. METHODS:Fresh cadaveric dissections and...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/01.prs.0000208297.02556.a5
更新日期:2006-04-01 00:00:00
abstract:BACKGROUND:Academic research productivity is limited by strenuous resident and faculty schedules but nevertheless is imperative to the growth and success of our discipline. The authors report institutional experience with their clinical research fellowship model, providing two positions per year. METHODS:A critical an...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/PRS.0000000000003681
更新日期:2017-10-01 00:00:00
abstract::There are several anecdotal clinical articles claiming wound healing and scar superiority using obsidian (volcanic glass) scalpels. In order to determine if skin incisions made with obsidian were superior to those made with standard surgical steel, wound tensile strength, scar width, and histology were assessed in 40 ...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:
更新日期:1993-10-01 00:00:00
abstract::The author classifies ear deformities into 3 major groups and two sub-groups. The surgical procedures used to correct the deformity in each group are described. ...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:
更新日期:1975-04-01 00:00:00