keyword
MENU ▼
Read by QxMD icon Read
search

free tissue transfers

keyword
https://www.readbyqxmd.com/read/28226373/microvascular-flaps-in-nasal-reconstruction
#1
Irene A Kim, Kofi D O Boahene, Patrick J Byrne, Shaun C Desai
Nasal reconstruction for subtotal and total rhinectomy defects is a challenging endeavor, which requires technical finesse, a keen artistic eye, and the ability to anticipate long-term changes that accompany postoperative healing. While local and regional flaps have traditionally been utilized to reconstitute missing nasal elements, certain situations may not provide sufficient or acceptable tissue for optimal reconstruction. In these situations, the three major components of the nose-lining, structural support, and external skin-may require reconstruction with tissues harvested from distant sites through microvascular free tissue transfer...
February 2017: Facial Plastic Surgery: FPS
https://www.readbyqxmd.com/read/28222893/reconstruction-of-midface-defect-from-idiopathic-destructive-process-using-medpor-implant
#2
Joel Franco, Michael S Harris, Dominic Vernon, Taha Z Shipchandler
IMPORTANCE: Reconstruction of the midface remains a challenging task for even the most experienced surgeon, with a host of reconstructive options including free tissue transfer, allografts, or prosthetic implants. Presented here is a case of idiopathic bony destruction of the right midface in a 19year old female, creating a unique defect requiring repair. OBJECTIVE: Demonstrate a unique case of severe maxillary degeneration and discuss the associated reconstructive challenges and final repair with a prosthetic implant...
January 18, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/28219139/-outcome-of-relaying-anterolateral-thigh-perforator-flap-in-resurfacing-the-donor-site-wound-following-free-anteromedial-thigh-perforator-flap-transfer-for-reconstruction-of-defect-after-oral-tumor-radical-resection
#3
D J Song, Z Li, X Zhou, Y X Zhang, X W Peng, B Zhou, C L Lyu, L C Yang, W Peng
Objective: To observe the outcome of relaying anterolateral thigh (ALT) perforator flap in resurfacing the donor site wound following free anteromedial thigh (AMT) perforator flap transfer for reconstruction of defect after oral tumor radical resection. Methods: From January 2013 to January 2016, 28 patients with oral tumor underwent radical resection in our hospital, leaving defects with size ranged from 6.5 cm×3.5 cm to 11.0 cm×7.5 cm which were reconstructed by free AMT perforator flaps with size ranged from 7...
February 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28215817/free-dermal-fat-graft-reconstruction-of-the-head-and-neck-an-alternate-reconstructive-option
#4
Adam Honeybrook, Sanjay M Athavale, Sanjeet V Rangarajan, Sarah L Rohde, James L Netterville
OBJECTIVES: Ablative procedures of the head and neck often result in significant facial and cervical irregularities and cosmetic asymmetry. The deformity resulting from ablative procedures of the head and neck is a significant source of cosmetic morbidity and postoperative dissatisfaction. Reconstruction of post-ablative defects in the head and neck can employ a broad range of techniques, ranging from primary closure to free tissue transfer. The free dermal fat graft (FDFG) is one such option and has been used to repair volume defects of varying sizes after common head and neck procedures such as parotidectomy...
January 27, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/28211314/procedure-for-horizontal-transfer-of-patient-derived-xenograft-tumors-to-eliminate-corynebacterium-bovis
#5
Christopher A Manuel Stacey M Bagby Julie A Reisinger Umarani Pugazhenthi Todd M Pitts Stephen B Keysar John J Arcaroli And Jori K Leszczynski
Human patient-derived xenograft (PDX) tumors, propagated in immunodeficient mice, are rapidly growing in use as amodelfor cancer research. Horizontal transfer between mice, without in vitro cell culture, allows these tumors to retainmany of their unique characteristics from their individual patient of origin. However, the immunodeficient mouse strainsused to grow these tumors are susceptible to numerous opportunistic pathogens, including Corynebacterium bovis. At ourinstitution, 2 in vivo tumor banks of PDX tumors had been maintained within nude mouse colonies enzootically infectedwith C...
February 16, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28203500/reconstructive-surgery-for-bronchopleural-fistula-and-empyema-new-application-of-free-fascial-patch-graft-combined-with-free-flap
#6
Minoru Sakuraba, Hiroki Umezawa, Shimpei Miyamoto, Masahide Fujiki, Takuya Higashino, Azusa Oshima, Masahiro Tsuboi
BACKGROUND: Postoperative bronchopleural fistula (BPF) and empyema are not uncommon after lung cancer surgery. Some patients require reconstructive surgery to achieve wound healing. In this report, we describe a novel method of reconstructive surgery for BPF and empyema. METHODS: From 1996 through 2014, we performed reconstructive surgery for the treatment of BPF and empyema in 13 cases. BPF or a pulmonary fistula was present in 11 patients at the time of reconstruction...
January 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28201829/impact-of-continuous-two-team-approach-in-autologous-breast-reconstruction
#7
A J Bauermeister, A Zuriarrain, M Newman, S A Earle, M A Medina
Background Autologous breast reconstruction has been noted in the literature to provide superior aesthetic outcomes and patient satisfaction. Additionally, free perforator flap tissue transfer has the potential for lower abdominal donor site morbidity. However, it has been noted that the percentage of women who are undergoing autologous breast reconstruction in the United States is decreasing. Factors related to the technical difficulty, prolonged operative times, and decreasing reimbursement have been implicated as the causes...
February 15, 2017: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/28199294/flow-induced-microvascular-network-formation-of-therapeutic-relevant-arteriovenous-av-loop-based-constructs-in-response-to-ionizing-radiation
#8
Volker J Schmidt, Jennifer M Covi, Christoph Koepple, Johannes G Hilgert, Elias Polykandriotis, Amir K Bigdeli, Luitpold V Distel, Raymund E Horch, Ulrich Kneser
BACKGROUND The arteriovenous (AV) loop model enables axial vascularization to gain a functional microcirculatory system in tissue engineering constructs in vivo. These constructs might replace surgical flaps for the treatment of complex wounds in the future. Today, free flaps are often exposed to high-dose radiation after defect coverage, according to guideline-oriented treatment plans. Vascular response of AV loop-based constructs has not been evaluated after radiation, although it is of particular importance...
February 15, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28194713/use-of-compressive-osseointegration-endoprostheses-for-massive-bone-loss-from-tumor-and-failed-arthroplasty-a-viable-option-in-the-upper-extremity
#9
Krista A Goulding, Adam Schwartz, Steven J Hattrup, R Lor Randall, Donald Lee, Damian M Rispoli, Daniel M Lerman, Christopher Beauchamp
BACKGROUND: Endoprostheses using principles of compressive osseointegration have shown good survivorship in several studies involving the lower extremity; however, no series to our knowledge have documented the use of this technology in the management of massive bone loss in the upper limb. QUESTIONS/PURPOSES: (1) What proportion of upper extremity implants using compressive osseointegration fixation principles achieved durable short-term fixation, and what were the modes of failure? (2) What surgical complications resulted from reconstruction using this technique? METHODS: A multiinstitutional retrospective review identified nine patients (five women; four men) who underwent 13 endoprosthetic replacements between 2003 and 2014 using compressive osseointegration (Compliant(®) Pre-stress Device [CPS]; Biomet Inc, Warsaw, IN, USA) in the upper extremity, including two proximal humeri, two humeral diaphyses, seven distal humeri, and two proximal ulna...
February 13, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28193902/high-thermal-conductivity-in-soft-elastomers-with-elongated-liquid-metal-inclusions
#10
Michael D Bartlett, Navid Kazem, Matthew J Powell-Palm, Xiaonan Huang, Wenhuan Sun, Jonathan A Malen, Carmel Majidi
Soft dielectric materials typically exhibit poor heat transfer properties due to the dynamics of phonon transport, which constrain thermal conductivity (k) to decrease monotonically with decreasing elastic modulus (E). This thermal-mechanical trade-off is limiting for wearable computing, soft robotics, and other emerging applications that require materials with both high thermal conductivity and low mechanical stiffness. Here, we overcome this constraint with an electrically insulating composite that exhibits an unprecedented combination of metal-like thermal conductivity, an elastic compliance similar to soft biological tissue (Young's modulus < 100 kPa), and the capability to undergo extreme deformations (>600% strain)...
February 13, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28192624/mr-based-synthetic-ct-generation-using-a-deep-convolutional-neural-network-method
#11
Xiao Han
PURPOSE: Interests have been rapidly growing in the field of radiotherapy to replace CT with magnetic resonance imaging (MRI), due to superior soft tissue contrast offered by MRI and the desire to reduce unnecessary radiation dose. MR-only radiotherapy also simplifies clinical workflow and avoids uncertainties in aligning MR with CT. Methods, however, are needed to derive CT-equivalent representations, often known as synthetic CT (sCT), from patient MR images for the purpose of dose calculation and DRR-based patient positioning...
February 13, 2017: Medical Physics
https://www.readbyqxmd.com/read/28183429/successful-facial-artery-pseudoaneurysm-coiling-and-pedicle-preservation-following-free-tissue-transfer
#12
Andrew T Day, Dane J Genther, Ferdinand Hui, Wojciech K Mydlarz, Gillian Griffith, Shaun C Desai
Patients undergoing free tissue reconstruction are at risk for development of an anastomotic pseudoaneurysm, which may present as delayed neck hemorrhage or a pulsatile neck mass. Diagnosis may be achieved by noninvasive imaging, angiography, and exploration. Management strategies for head and neck pseudoaneurysms have included open vessel ligation, open direct vessel repair, endovascular parent vessel embolization, and, most recently, endovascular pseudoaneurysm embolization. In patients with anastomotic pseudoaneurysms where adequate flap inosculation is doubted, endovascular pseudoaneurysm embolization with pedicle preservation may be an appropriate primary treatment approach...
January 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/28183276/peginterferon-beta-1a-improves-mri-measures-and-increases-the-proportion-of-patients-with-no-evidence-of-disease-activity-in-relapsing-remitting-multiple-sclerosis-2-year-results-from-the-advance-randomized-controlled-trial
#13
Douglas L Arnold, Peter A Calabresi, Bernd C Kieseier, Shifang Liu, Xiaojun You, Damian Fiore, Serena Hung
BACKGROUND: Subcutaneous peginterferon beta-1a has previously been shown to reduce the number of T2-hyperintense and gadolinium-enhancing (Gd+) lesions over 2 years in patients with relapsing-remitting multiple sclerosis (RRMS), and to reduce T1-hypointense lesion formation and the proportion of patients showing evidence of disease activity, based on both clinical and radiological measures, compared with placebo over 1 year of treatment. The objectives of the current analyses were to evaluate T1 lesions and other magnetic resonance imaging (MRI) measures, including whole brain volume and magnetization transfer ratio (MTR) of normal appearing brain tissue (NABT), and the proportions of patients with no evidence of disease activity (NEDA), over 2 years...
February 10, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28170119/lateral-arm-free-tissue-transfer-for-parotid-reconstruction-a-pictorial-essay
#14
Stephen Y Kang, Matthew O Old, Theodoros N Teknos
BACKGROUND: The goals of parotid reconstruction are to provide accurate volume reconstruction of the defect while minimizing ptosis, optimize color match to surrounding facial skin, maintain anatomic position of the auricle, and to perform facial nerve rehabilitation in cases in which the facial nerve is removed. METHODS AND RESULTS: For many complex parotid defects, the lateral arm free tissue transfer achieves these reconstructive goals and is the ideal donor site for microvascular reconstruction...
February 7, 2017: Head & Neck
https://www.readbyqxmd.com/read/28166139/novel-injury-site-targeted-fusion-protein-comprising-annexin-v-and-kunitz-inhibitor-domains-ameliorates-ischemia-reperfusion-injury-and-promotes-survival-of-ischemic-rat-abdominal-skin-flaps
#15
Victor Bong-Hang Shyu, Chung En Hsu, Chih-Jen Wen, Tze-Chein Wun, Rui Tang, Samuel Achilefu, Fu-Chan Wei, Hui-Yun Cheng
: Appropriate antithrombotic therapy is critical for successful outcomes in reconstructive microsurgical procedures involving free tissue transfer. The annexin V-6L15 (ANV-6L15) fusion protein was developed as a targeted antithrombotic reagent. Annexin V specifically binds to exposed phosphatidylserine on apoptotic or injured cells, and prevents coagulation and cell adhesion, whereas 6L15 inhibits tissue factor-VIIa pathway within the coagulation cascade. The treatment efficacy of ANV-6L15 on rat island muscle and pedicled abdominal fasciocutaneous flaps following ischemic injury and ischemia-reperfusion injury (IRI) was evaluated...
February 4, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28166137/vascular-complications-and-free-flap-salvage-in-head-and-neck-reconstructive-surgery-analysis-of-150-cases-of-reexploration
#16
Yen-Hao Chiu, Dun-Hao Chang, Cherng-Kang Perng
INTRODUCTION: Despite the excellent reliability of free tissue transfer, flap failure is devastating, and in addition to patient morbidity, it may increase hospital stay and associated costs. Previous studies have evaluated factors related to flap salvage, regarding the operative strategy for flap salvage surgery. The present study aimed to share our experience of reexploration and describe operative standards dealing with vascular thrombosis. METHODS: We retrospectively reviewed 150 (of 1258) free flaps for head and neck reconstruction that showed signs of vascular compromise at our institution during a 13-year period between 2002 and 2015...
February 4, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28160906/thumb-reconstruction-with-thin-proximal-ulnar-perforator-free-flap
#17
REVIEW
Mario Cherubino, Martina Corno, Luigi Valdatta, Roberto Adani
Soft tissue defects of the thumb with exposure of tendons, periosteum, or neurovascular bundles require a complex reconstruction aimed at restoring both skin coverage and the essential function of pinching and manipulation. When large defects are involved, a free tissue transfer is indicated. The proximal ulnar perforator flap represents an interesting solution without the drawbacks of other more widespread free flaps. This report describes the case of a patient with a squamous cell carcinoma of the thumb that required circumferential resection of the soft tissue of the distal phalanx and the interphalangeal joint...
February 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28160323/recipient-vessels-for-microsurgical-flaps-to-the-abdomen-a-systematic-review
#18
REVIEW
Raffi Gurunluoglu, Michael J Rosen
BACKGROUND: Large soft tissue defects of the abdominal wall resulting from various reasons may require free tissue transfer. METHODS: A literature search of PubMed and Cochrane electronic databases was conducted to identify articles involving abdominal wall reconstruction (AWR) with microsurgical flap. Number of cases, etiology, and reconstruction site, type of microsurgical flap and recipient vessels were analyzed. RESULTS: Thirty-eight articles published between 1983 and 2016 reported on 149 patients undergoing free flap AWR...
February 4, 2017: Microsurgery
https://www.readbyqxmd.com/read/28159544/analysis-of-the-ideal-muscle-weight-of-gracilis-muscle-transplants-for-facial-reanimation-surgery-with-regard-to-the-donor-nerve-and-outcome
#19
David Braig, Holger Bannasch, G Björn Stark, Steffen U Eisenhardt
BACKGROUND: Free functional muscle transfers represent the 'criterion standard' for smile reconstruction in facial paralysis. The gracilis muscle is a common donor muscle; however, no data exist regarding the volume of the muscle tissue that is necessary for symmetric commissure excursion. METHODS: All patients with facial paralysis receiving a free functional muscle transfer for facial reanimation surgery between January 2009 and November 2015 were retrospectively analysed...
January 9, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28153563/perforator-free-flaps-in-head-and-neck-reconstruction-a-single-center-low-volume-experience
#20
Annelies Weckx, Natalie Loomans, Olivier Lenssen
OBJECTIVE: The aim of this article is to investigate the results of free-flap reconstructions in the head and neck area in a secondary low-volume institution and compare these with the literature. STUDY DESIGN: A retrospective study was performed of all patients who underwent free-flap reconstructive surgery in our institution from January 9, 2011, to July 12, 2015, by one young surgeon in a one-team approach. The types of flaps applied, defect sites, pathology, anastomotic details, success and complication rates, lengths of stay, and patients' ages and comorbidities were analyzed...
December 7, 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
keyword
keyword
102183
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"