Abstract:
:This study evaluates six different techniques with respect to their ability to quantitatively describe facial asymmetry in three dimensions. Three-dimensional facial images were acquired using a Cyberware 3030RGB laser surface scanner. Image processing was performed on a Silicon Graphics Indigo computer workstation. The following techniques for facial asymmetry analysis were developed: asymmetry in the location of anthropometric landmarks, Euclidean distance matrix analysis (EDMA), scalar measurement of the lower ciliary margin and palpebral fissure area, clearance vector mapping, and determination of the volume of asymmetry. Techniques were applied and validated in three anthropometric models: a perfectly symmetrical plastic head model and a plaster head model with and without a unilateral cheek augmentation. In each of the anthropometric test models, each analytical technique was validated by means of static anthropometric facial models and was evaluated for intraobserver and interobserver reliability. Asymmetries in the location of anthropometric landmarks can be accurately determined to within 2 mm in x, y, and z directions of the Cartesian space. EDMA is a useful technique in describing both size and shape changes of discrete areas of the face. Measurement of the lower ciliary margin and palpebral fissure area is reliable. Clearance vector mapping is especially useful in quantifying facial surface asymmetries in facial areas where anthropometric landmarks are scarce. Volume of asymmetry is potentially useful in those patients for whom the use of injections or implants of known volume may be helpful in correcting unilateral facial deficiencies.
journal_name
Plast Reconstr Surgjournal_title
Plastic and reconstructive surgeryauthors
O'Grady KF,Antonyshyn OMdoi
10.1097/00006534-199909040-00006subject
Has Abstractpub_date
1999-09-01 00:00:00pages
928-37issue
4eissn
0032-1052issn
1529-4242journal_volume
104pub_type
杂志文章abstract:BACKGROUND:Masseteric and hypoglossal nerve transfers are reliable alternatives for reanimating short-term facial paralysis. To date, few studies exist in the literature comparing these techniques. This work presents a quantitative comparison of masseter-facial transposition versus hemihypoglossal facial transposition ...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/PRS.0b013e318267d5e8
更新日期:2012-11-01 00:00:00
abstract::The hypothesis that incomplete resorption of osteons in an autogenous cortical bone graft may limit its replacement by new bone regeneration was explored by implanting a hydroxyapatite replica of a coral skeletal structure into bone gaps. This implant contained channels and interconnections similar to those in osteon-...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-197905000-00004
更新日期:1979-05-01 00:00:00
abstract::A surgical procedure is described for the definitive treatment of trochanteric decubitus ulcers. It combines the advantages of the bipedicle skin flap and the musculocutaneous flap; that is, a large area of skin is provided with a thick protective padding consisting of fat, fascia, and muscle richly vascularized by th...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-198011000-00011
更新日期:1980-11-01 00:00:00
abstract:BACKGROUND:Theories regarding the cause of craniosynostosis that are more than 15 years old cite the role that tensional forces play in the normal and abnormal development of the cranial suture. These theories highlight the effect of stress bands originating from the skull base to the vertex, guiding sutural developmen...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/01.prs.0000270284.69632.6b
更新日期:2007-09-01 00:00:00
abstract:BACKGROUND:Tibial resection in children presents a unique reconstructive challenge because of technical demands, future growth potential, and repetitive loading of the lower extremity. Positioned in a tibial defect, the free fibula undergoes primary bone healing while maintaining intrinsic resistance to infection and t...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/PRS.0b013e318230e463
更新日期:2012-01-01 00:00:00
abstract:BACKGROUND:Negative-pressure wound therapy with instillation is a novel wound therapy that combines negative pressure with instillation of a topical solution. METHODS:This retrospective, historical, cohort-control study examined the impact of negative-pressure wound therapy with and without instillation. RESULTS:One ...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/01.prs.0000438060.46290.7a
更新日期:2014-03-01 00:00:00
abstract::Six representative patients with fetal alcohol syndrome (FAS) were studied for craniofacial and oral anomalies, dental development, and long-term bodily growth patterns. The craniofacial features observed were reduction of total head size, increased head-body ratio, the existence of upper and middle craniofacial asymm...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-199004000-00003
更新日期:1990-04-01 00:00:00
abstract::Several factors may increase a patient's risk for perioperative pulmonary complications. This practice advisory provides an overview of the preoperative steps that should be performed to ensure appropriate patient selection and patient safety with regard to pulmonary complications. Procedural and patient-related risk ...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章,评审
doi:10.1097/PRS.0b013e3181b53fb0
更新日期:2009-10-01 00:00:00
abstract::We report a case in which an undelayed cervical myocutaneous flap was used early to cover the denuded cartilage of a burned ear. The ear was saved, and a good result was obtained. ...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-197810000-00030
更新日期:1978-10-01 00:00:00
abstract::The quantity of soft tissue overlying the symphysis menti affords an important attribute that can aid in determination of the correct surgical approach for optimal facial harmony. Xerograms of the facial profile of 100 patients with normal occlusion were analyzed by accepted radiographic cephalometric techniques. The ...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:
更新日期:1995-03-01 00:00:00
abstract::Toe-to-hand transfer was performed in 28 patients, involving 33 fingers, using microvascular technique. Of this number, 26 patients (31 fingers) had experienced trauma, and the remaining 2 patients (2 fingers) had a congenital deformity. The toew used for grafting were the great toe (1), the second tow (30), and thir...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-198007000-00015
更新日期:1980-07-01 00:00:00
abstract::In the past 5 years, 25 mutilated digits were reconstructed with immediate toe-to-hand transfers after acute hand injuries, for 21 patients. The overall results of the immediate toe-to-hand transfers were evaluated and compared with the results of 65 elective procedures performed during the same period by the same sur...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/01.prs.0000105340.26227.b5
更新日期:2004-03-01 00:00:00
abstract:BACKGROUND:Capsular contracture is one of the most common complications associated with silicone breast implants. The surface of the implant is one of the factors often associated with the occurrence of capsular contracture. In this study, the authors evaluated the differences in morphologic and molecular characteristi...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/PRS.0b013e3181f446d5
更新日期:2010-12-01 00:00:00
abstract:BACKGROUND:Upper arm deformities secondary to massive weight loss or senile elastosis have led to an increased demand for aesthetic contouring procedures such as brachioplasty. METHODS:The records of all patients who underwent a brachioplasty procedure from a multipractice medical center were reviewed. Outcomes measur...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/PRS.0b013e3182827726
更新日期:2013-04-01 00:00:00
abstract::The purpose of this article is to introduce plastic surgeons to a theory of adult education. Most surgeons have been hired by their parent institution because of their clinical skills, and rightly so. At the same time, these same surgeons choose or are expected to be involved to varying degrees in the surgical educati...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/PRS.0b013e318252f19d
更新日期:2012-05-01 00:00:00
abstract::After reviewing the historical aspects of the various lip-switch flaps, the authors draw attention to the existence of a report of a lip-switch flap performed in Sweden in 1756 by J.G.Hierzel. ...
journal_title:Plastic and reconstructive surgery
pub_type: 传,历史文章,杂志文章
doi:
更新日期:1994-01-01 00:00:00
abstract:BACKGROUND:Reduction mammaplasty has both a reconstructive and an aesthetic component. Relief of neck, back, and shoulder pain, as well as psychosocial improvement, is the main indication for intervention. Patient satisfaction is high, with early improvement in most cases. Preoperative planning confirms the anatomical ...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/01.prs.0000165085.23537.a7
更新日期:2005-06-01 00:00:00
abstract::Vascularized free flaps are now considered the most appropriate choice for mandible reconstruction because they offer excellent cosmetic and functional results. Various techniques have been proposed. Free fibular flaps have numerous advantages in terms of versatility and contouring. Shaping can be achieved by wedge os...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-200108000-00007
更新日期:2001-08-01 00:00:00
abstract:BACKGROUND:Microsurgical procedures, although equipment- and labor-intensive, allow efficient treatment of selected soft-tissue, bone, and peripheral nerve defects. The precise surgical skills required and the high equipment and institutional costs have been deterrents to initiating programs in developing countries. Th...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/01.prs.0000254544.65054.95
更新日期:2007-04-01 00:00:00
abstract::Speech production and age at palatal repair were investigated in 80 cleft palate children. Children whose palates were repaired prior to the onset of speech production demonstrated significantly better speech than those whose palates were repaired between 12 and 27 months of age. The supposition that earlier palatal r...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-198207000-00015
更新日期:1982-07-01 00:00:00
abstract::Full-thickness cranial (membranous) and split-thickness iliac crest (endochondral) onlay bone grafts were placed subperiosteally without fixation onto the snout (membranous) and tibia (endochondral) in 30 rats. The animals had been divided into three equal groups in which the bone grafts had been demineralized, autocl...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-199106000-00013
更新日期:1991-06-01 00:00:00
abstract:BACKGROUND:Flaps based on the ulnar artery have never gained the same popularity as the radial forearm flap, despite several potential advantages. In this article, the authors describe a true ulnar artery perforator flap with perforator mapping. METHODS:Thirty-eight consecutive patients who underwent ulnar artery perf...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/PRS.0b013e3182362a9c
更新日期:2012-01-01 00:00:00
abstract::The buccal space, with its fat pad, is a valuable, overlooked target in facial rejuvenation procedures. The authors identified a specific group of patients who have normal or prominent malar projection in the presence of atrophy of the buccal fat pad, with or without prominent gonial angles. Eight of 24 prospectively ...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/PRS.0000000000003384
更新日期:2017-06-01 00:00:00
abstract:BACKGROUND:Fat graft volume retention remains highly unpredictable, but addition of adipose-derived stromal cells to fat grafts has been shown to improve retention. The present study aimed to investigate the mechanisms involved in adipose-derived stromal cell enhancement of fat grafting. METHODS:Adipose-derived stroma...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/PRS.0000000000001104
更新日期:2015-04-01 00:00:00
abstract::Two cases of heel damage that were reconstructed with a T-shaped distally based island fasciocutaneous flap in the sural area are presented. This flap is vascularized by the distal sural arterial network. The advantages of this flap are: (1) It does not sacrifice any major arteries of the leg. (2) It covers the whole ...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-199404000-00036
更新日期:1994-04-01 00:00:00
abstract::Marked improvement in the aesthetic appearance of scars and skin grafts of the hair-bearing facial areas of male patients can be achieved by camouflage with punctate tattooing. The technique is easy and simple to learn. The procedure is performed under local anesthesia and on an outpatient basis. ...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-199308000-00027
更新日期:1993-08-01 00:00:00
abstract::Grafted fat has many attributes of an ideal filler, but the results, like those of any procedure, are technique dependent. Fat grafting remains shrouded in the stigma of variable results experienced by most plastic surgeons when they first graft fat. However, many who originally reported failure eventually report succ...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/01.prs.0000234610.81672.e7
更新日期:2006-09-01 00:00:00
abstract::This experimental study demonstrates that iontophoresis can be used to transport biologically active gentamicin into auricular cartilage. Fifty female New Zealand White rabbits were divided into three groups: live controls with unburned ears, live animals with burn-injured ears (deep or partial-thickness), and euthani...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:
更新日期:1993-12-01 00:00:00
abstract:BACKGROUND:Neurofibromatosis type 1 is a genetic and ubiquitous disease, with an estimated incidence of one in 3000 live births. Neurofibromas, defined as various benign tumors, are hallmarks of the disease. Facial plexiform or diffuse neurofibromas usually occur unilaterally and can induce facial hemihypertrophy. Surg...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/PRS.0b013e3181d180e9
更新日期:2010-04-01 00:00:00
abstract::Deep mechanical massage has been advocated as an alternative or adjunctive therapy for the contouring of subcutaneous fat and as a treatment for cellulite. We evaluated the effects of deep mechanical massage using two pig models. Yucatan pigs were divided into three groups (n = 4). One side of each body received 4, 10...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-200107000-00038
更新日期:2001-07-01 00:00:00