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soft tissue reconstruction

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https://www.readbyqxmd.com/read/29145337/partial-resection-and-reconstruction-of-the-sternum-for-treatment-of-metachronous-sternal-metastasis-of-thyroid-carcinoma-a-case-report
#1
Hong-Jing Lan, Zhi-Qiang Wu, Dong-Ge Gong, Wang-Yong Zheng, Yun Jin
RATIONALE: Metachronous sternal metastasis of thyroid carcinoma was a rare disease. There was no consensus in the treatment for bone metastasis after the initial thyroid carcinoma surgery. PATIENT CONCERNS: A 53-year-old female patient was hospitalized due to recurrent dull chest pains, with a history of radical right side thyroid carcinoma 4 years ago. On examination, there was an irregular mass on the lower left half of the sternum. Computerized tomography scan showed sternal bone destruction with a soft tissue mass...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29144991/finite-element-simulation-on-posterior-tibial-tendinopathy-load-transfer-alteration-and-implications-to-the-onset-of-pes-planus
#2
Duo Wai-Chi Wong, Yan Wang, Aaron Kam-Lun Leung, Ming Yang, Ming Zhang
BACKGROUND: Posterior tibial tendinopathy is a challenging foot condition resulting in pes planus, which is difficult to diagnose in the early stage. Prior to the deformity, abnormal internal load transfer and soft tissue attenuation are anticipated. The objective of this study was to investigate the internal load transfer and strain of the ligaments with posterior tibial tendinopathy, and the implications to pes planus and other deformities. METHODS: A three-dimensional finite element model of the foot and ankle was reconstructed from magnetic resonance images of a 28-year-old normal female...
November 3, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/29144022/collagen-a-review-on-its-sources-and-potential-cosmetic-applications
#3
REVIEW
María Isabela Avila Rodríguez, Laura G Rodríguez Barroso, Mirna Lorena Sánchez
Collagen is a fibrillar protein that conforms the conjunctive and connective tissues in the human body, essentially skin, joints, and bones. This molecule is one of the most abundant in many of the living organisms due to its connective role in biological structures. Due to its abundance, strength and its directly proportional relation with skin aging, collagen has gained great interest in the cosmetic industry. It has been established that the collagen fibers are damaged with the pass of time, losing thickness and strength which has been strongly related with skin aging phenomena [Colágeno para todo...
November 16, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/29140567/human-adipose-derived-stromal-cell-isolation-methods-and-use-in-osteogenic-and-adipogenic-in-vivo-applications
#4
Elizabeth Brett, Ruth Tevlin, Adrian McArdle, Eun Young Seo, Charles K F Chan, Derrick C Wan, Michael T Longaker
Adipose tissue represents an abundant and easily accessible source of multipotent cells, which may serve as excellent building blocks for tissue engineering. This article presents a newly described protocol for isolating adipose-derived stromal cells (ASCs) from human lipoaspirate, compared to the standard protocol for harvesting ASCs established in 2001. Human ASC isolation is performed using two methods, and resultant cells are compared through cell yield, cell viability, cell proliferation and regenerative potential...
November 15, 2017: Current Protocols in Stem Cell Biology
https://www.readbyqxmd.com/read/29135896/vertical-skin-paddle-orientation-for-the-latissimus-dorsi-flap-in-breast-reconstruction-a-modification-to-simultaneously-correct-inferior-pole-constriction-and-improve-projection
#5
Megan Fracol, Michelle Grim, Steven Lanier, Neil A Fine
The latissimus dorsi myocutaneous flap (LDMF) is a reliable and frequently used option to bring vascularized skin and soft tissue to improve the stability and aesthetic result in breast reconstruction. Standard techniques with skin paddle inset in a horizontal or oblique fashion preferentially improve anterior projection (when inset at the mastectomy scar) or lower pole and infra-mammary fold (IMF) constriction (when inset into the IMF). Here, we describe a modification for inset of the LDMF that improves both anterior projection and lower pole/IMF constriction, while also allowing the latissimus muscle to fan out and provide complete implant coverage...
November 8, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29135894/deferoxamine-preconditioning-of-irradiated-tissue-improves-perfusion-and-fat-graft-retention
#6
John Flacco, Natalie Chung, Charles P Blackshear, Dre Irizarry, Arash Momeni, Gordon K Lee, Dung Nguyen, Geoffrey C Gurtner, Michael T Longaker, Derrick C Wan
BACKGROUND: Radiation therapy is a mainstay in the treatment of many malignancies, but collateral damage to surrounding tissue, with resultant hypovascularity, fibrosis, and atrophy, can be difficult to reconstruct. Fat grafting has been shown to improve the quality of irradiated skin, but volume retention of the graft is significantly decreased. Deferoxamine (DFO) is a FDA-approved iron-chelating medication for acute iron intoxication and chronic iron overload that has also been shown to increase angiogenesis...
November 8, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29135862/management-of-sigmoid-sinus-associated-pulsatile-tinnitus-a-systematic-review-of-the-literature
#7
Alan C Wang, Avery N Nelson, Cassandra Pino, Peter F Svider, Robert S Hong, Eleanor Chan
OBJECTIVES: Although studies demonstrate 4 to 20% of patients with pulsatile tinnitus (PT) have associated sigmoid sinus anomalies, no consensus exists regarding optimal management. Our objective was to perform a systematic review exploring surgical and endovascular intervention of PT caused by sigmoid sinus anomalies. DATA SOURCES/EXTRACTION: A systematic review was performed using the Preferred Reporting Systems for Systematic Reviews and Meta-Analysis guidelines for reporting of results, with a target population encompassing patients with PT and either sigmoid sinus diverticulum or sigmoid wall dehiscence...
December 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29132347/knee-arthrodesis-versus-above-the-knee-amputation-after-septic-failure-of-revision-total-knee-arthroplasty-comparison-of-functional-outcome-and-complication-rates
#8
Sven Hungerer, Martin Kiechle, Christian von Rüden, Matthias Militz, Knut Beitzel, Mario Morgenstern
BACKGROUND: After septic failure of total knee arthroplasty (TKA) and multiple revision operations resulting in impaired function, bone and/or soft-tissue damage a reconstruction with a revision arthroplasty might be impossible. Salvage procedures to regain mobility and quality of life are an above-the-knee amputation or knee arthrodesis. The decision process for the patient and surgeon is difficult and data comparing arthrodesis versus amputation in terms of function and quality of life are scarce...
November 13, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29132254/reverse-flow-intrinsic-fasciocutaneous-island-flaps-in-foot-reconstruction
#9
Sujin Bahk, GyeongHyeon Doh, Ki Yong Hong, SooA Lim, SuRak Eo
Reconstruction of soft tissue defects in the foot remains a challenge due to its specialized tissue for weightbearing and ambulation. Considering the principle of replacing "like with like," adjacent soft tissues would be a best option for a donor site. Although several kinds of reverse-flow island flaps for the lower leg have been well described, intrinsic foot reverse flow flaps have been rarely reported. We describe 3 kinds of reverse-flow intrinsic fasciocutaneous flaps (RIFFs) for foot reconstruction. From September 2012 to August 2015, a retrospective study was done on case notes of all patients who had a RIFF for coverage of soft tissue defects within the foot following trauma or tumor ablation...
November 1, 2017: International Journal of Lower Extremity Wounds
https://www.readbyqxmd.com/read/29131778/adventures-and-misadventures-in-plastic-surgery-and-soft-tissue-implants
#10
Dana J Lin, Tony T Wong, Gina A Ciavarra, Jonathan K Kazam
Soft-tissue augmentation and implants are increasingly seen by the radiologist as more techniques emerge for a variety of indications and locations. Some surgical and implant procedures are performed for purely cosmetic reasons in otherwise healthy patients seeking to improve their body image, and some are performed for reconstruction after cancer or other chronic illnesses. Abdominoplasty, liposuction, and autologous fat grafting can be performed for abdominal and gluteal contouring. Injection of liquid injectable silicone has historically been fraught with legal issues, although it continues to be used for augmentation in a variety of anatomic locations...
November 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29130804/is-metal-particle-release-associated-with-peri-implant-bone-destruction-an-emerging-concept
#11
T Fretwurst, K Nelson, D P Tarnow, H-L Wang, W V Giannobile
Peri-implant diseases affecting the surrounding structures of endosseous dental implants include peri-implant mucositis and peri-implantitis. The prevalence of peri-implantitis ranges between 15% and 20% after 10 y, highlighting the major challenge in clinical practice in the rehabilitation of dental implant patients. The widespread nature of peri-implant bone loss poses difficulties in the management of biological complications affecting the long-term success of osseointegrated implant reconstructions. Metal and titanium particles have been detected in peri-implant supporting tissues...
November 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/29130656/-design-of-minimal-invasive-screw-on-posterior-pelvis-ring-and-pelvic-finite-element-analysis
#12
Fan Tang, Li Min, Yan-Ling Wang, Bo Qu, Yong Zhou, Yi Luo, Wen-Li Zhang, Rui Shi, Hong Duan, Chong-Qi Tu
OBJECTIVE: To design minimal invasive screw on posterior pelvic ring and perform threedimensional finite element analysis based on a pelvis finite element model. METHODS: We measured the pelvic anatomical data of 20 healthy volunteers and identified potential designs for minimal invasive screw on posterior pelvic ring. A finite element model of pelvis was then established. Threedimensional finite element analyses were performed under static and dynamic mechanical loading,respectively...
September 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/29126283/surgical-management-of-penile-lesions-secondary-to-foreign-body-reaction-a-case-report-and-systematic-review
#13
Pedro L S Faveret, Fábio Santiago
Background: To improve the penile contour, some men choose to undergo implantation or injection of nonbiological materials. Foreign body reactions in penile tissue may produce scarring, deformity, ulceration, necrosis, and even gangrene. Consensus is lacking regarding the most effective surgical procedure for reconstruction of these penile lesions. Objectives: The authors describe one case study and the first systematic review focusing on reconstructive surgical management for penile lesions secondary to foreign body reaction...
November 6, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/29121707/reconstruction-of-medial-orbital-wall-fractures-without-subperiosteal-dissection-the-push-out-technique
#14
Yong-Ha Kim, Jin Ho Lee, Youngsoo Park, Sung-Eun Kim, Kyu-Jin Chung, Jun-Ho Lee, Tae Gon Kim
Background: Various surgical methods for repairing medial orbital wall fractures have been introduced. The conventional technique requires total separation of the displaced orbital bones from the orbital soft tissues. However, subperiosteal dissection around the fracture can cause additional damage. The aim of the present study is to introduce a method of reconstructing medial orbital wall fractures without subperiosteal dissection named the "push-out" technique. Methods: Six patients with post-traumatic enophthalmos resulting from an old medial orbital wall fracture and 10 patients with an acute medial orbital wall fracture were included...
November 10, 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/29119237/impact-of-improved-attenuation-correction-featuring-a-bone-atlas-and-truncation-correction-on-pet-quantification-in-whole-body-pet-mr
#15
Mark Oehmigen, Maike E Lindemann, Marcel Gratz, Julian Kirchner, Verena Ruhlmann, Lale Umutlu, Jan Ole Blumhagen, Matthias Fenchel, Harald H Quick
PURPOSE: Recent studies have shown an excellent correlation between PET/MR and PET/CT hybrid imaging in detecting lesions. However, a systematic underestimation of PET quantification in PET/MR has been observed. This is attributable to two methodological challenges of MR-based attenuation correction (AC): (1) lack of bone information, and (2) truncation of the MR-based AC maps (μmaps) along the patient arms. The aim of this study was to evaluate the impact of improved AC featuring a bone atlas and truncation correction on PET quantification in whole-body PET/MR...
November 9, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29119077/osteomyelitis-of-the-pelvic-bones-a-multidisciplinary-approach-to-treatment
#16
Maria Dudareva, Jamie Ferguson, Nicholas Riley, David Stubbs, Bridget Atkins, Martin McNally
Background and Purpose: A case series review of chronic pelvic osteomyelitis treated with combined medical and surgical treatment by a multidisciplinary team. Methods: All patients treated with surgical excision of pelvic osteomyelitis at our tertiary referral centre between 2002 and 2014 were included. All received combined care from a clinical microbiologist, an orthopaedic surgeon and a plastic surgeon. The rate of recurrent infection, wound healing problems and post-operative mortality was determined in all...
2017: Journal of bone and joint infection
https://www.readbyqxmd.com/read/29116495/mandibular-kinematics-and-maximum-voluntary-bite-force-following-segmental-resection-of-the-mandible-without-or-with-reconstruction
#17
Sabine S Linsen, Annina Oikonomou, Markus Martini, Marcus Teschke
OBJECTIVES: The purpose was to analyze mandibular kinematics and maximum voluntary bite force in patients following segmental resection of the mandible without and with reconstruction (autologous bone, alloplastic total temporomandibular joint replacement (TMJ TJR)). MATERIALS AND METHODS: Subjects operated from April 2002 to August 2014 were enrolled in the study. Condylar (CRoM) and incisal (InRoM) range of motion and deflection during opening, condylar retrusion, incisal lateral excursion, mandibular rotation angle during opening, and maximum voluntary bite force were determined on the non-affected site and compared between groups...
November 7, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29115655/delayed-bipedicled-flap-an-alternative-and-new-method-for-reconstruction-of-distal-leg-defect-after-gunshot-trauma-a-case-report-and-review-of-the-literature
#18
Ali Rıza Yıldırım, Murat İğde, Mehmet Onur Öztürk, Hasan Murat Ergani, Ramazan Erkin Ünlü
Shotgun injury is a trauma that leads to soft tissue defects, in which important structures such as the tendon and bone are exposed with fractures in the distal lower extremity. Because this region has insufficient soft tissue support, local flap options are highly limited. Although the most suitable options are free or perforator flaps for contemporarily reconstructing that region; owing to such highenergy traumas, the available local flaps are becoming more suitable. Besides having various advantages, bipedicled flaps are commonly used for reconstructing small- and medium-sized lower extremity defects...
November 2017: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/29114611/2d-kv-orthogonal-imaging-with-fiducial-markers-is-more-precise-for-daily-image-guided-alignments-than-soft-tissue-cone-beam-computed-tomography-for-prostate-radiation-therapy
#19
Peter H Goff, Louis B Harrison, Eli Furhang, Evan Ng, Stephen Bhatia, Frieda Trichter, Ronald D Ennis
Purpose: The hypothesis is that 2-dimensional kV orthogonal imaging with fiducial markers (kV-FM) and soft-tissue cone beam computed tomography (ST-CBCT) are equally reproducible for daily positional alignments for image guided (IG) intensity modulated radiation therapy (IMRT) for prostate cancer. Methods and materials: Ten patients undergoing definitive treatment for prostate cancer with IG-IMRT were imaged daily with kV-FM and ST-CBCT. For each acquired kV and CBCT image, offline alignments to the digitally reconstructed radiograph or planning CT, respectively, were made twice by the same physician to assess intraobserver test-retest reproducibility...
July 2017: Advances in Radiation Oncology
https://www.readbyqxmd.com/read/29109842/submental-perforator-flap-for-soft-tissue-reconstruction-in-bisphosphonate-related-osteonecrosis-of-the-jaws
#20
Jose-Antonio García-de Marcos, Juan Rey-Biel
Bisphosphonate-related osteonecrosis of the jaws (BRONJ) has emerged as an important and increasingly common comorbidity, especially in patients undergoing long-term treatment with high doses of bisphosphonates. The management of BRONJ remains controversial. Surgical treatment is necessary in severe cases. Treatment of the bone requires sequestrectomy or resection. Given the lack of sufficient mucosa to perform the operation and fragility of margins in many patients, local flaps are crucial. We report two cases of stage-3 BRONJ presenting secondary infection with Actinomyces , receiving treatment consisting of marginal resection of the necrotic bone, reinforcement with a reconstruction plate, and reconstruction of soft tissues using a submental perforator artery flap ipsilateral to the lesion...
December 2017: Craniomaxillofacial Trauma & Reconstruction
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