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https://www.readbyqxmd.com/read/28226711/computer-aided-planning-and-reconstruction-of-cranial-3d-implants
#1
Markus Gall, Xing Li, Xiaojun Chen, Dieter Schmalstieg, Jan Egger, Markus Gall, Xing Li, Xiaojun Chen, Dieter Schmalstieg, Jan Egger, Jan Egger, Markus Gall, Xing Li, Dieter Schmalstieg, Xiaojun Chen
In this contribution, a prototype for semiautomatic computer-aided planning and reconstruction of cranial 3D Implants is presented. The software prototype guides the user through the workflow, beginning with loading and mirroring the patient's head to obtain an initial curvature of the cranial implant. However, naïve mirroring is not sufficient for an implant, because human heads are in general too asymmetric. Thus, the user can perform Laplacian smoothing, followed by Delaunay triangulation, for generating an aesthetic looking and well-fitting implant...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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/28217883/clinical-and-radiographic-outcome-following-immediate-loading-and-delayed-loading-of-single-tooth-implants-randomized-clinical-trial
#3
Björn Gjelvold, Jenö Kisch, Bruno Ramos Chrcanovic, Tomas Albrektsson, Ann Wennerberg
BACKGROUND: Immediate loading of single implants is generally considered a reliable procedure. PURPOSE: The objective of the present prospective randomized clinical study was to compare the overall treatment outcome following immediate loading (IL) and delayed loading (DL) of single implants after 1 year of follow-up. MATERIALS AND METHODS: Patients with a missing maxillary tooth (15-25) were randomly assigned to IL or DL. The protocol included implant installation in healed sites, immediate loading, delayed loading, temporary screw-retained restoration, and replacement with a permanent single implant crown...
February 19, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28215734/clinical-experiences-with-the-use-of-ultrapro-%C3%A2-mesh-in-single-stage-direct-to-implant-immediate-postmastectomy-breast-reconstruction-in-102-patients-a-retrospective-cohort-study
#4
D Pukancsik, P Kelemen, G Gulyás, M Újhelyi, E Kovács, K Éles, N Mészáros, I Kenessey, P Pálházi, T Kovács, M Kásler, Z Mátrai
BACKGROUND: Acellular dermal matrices have been used for direct-to-implant (DTI) breast reconstruction (BR), eliminating the load of the lower pole skin envelope. However, the available allograft matrices add considerable health care costs. This study examined the long-term follow-up of synthetic ULTRAPRO(®) mesh as a low-cost potential alternative to biological matrices. PATIENTS AND METHODS: A retrospective cohort study was performed between January 2013 and January 2016, involved 112 early-stage breast cancer and/or BRCA 1/2 patients, and evaluated 189 immediate DTI BRs following skin-, areola- or nipple-sparing mastectomy using ULTRAPRO(®) mesh...
February 6, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28196155/subperiosteal-minimally-invasive-aesthetic-ridge-augmentation-technique-smart-a-new-standard-for-bone-reconstruction-of-the-jaws
#5
Ernesto A Lee
Traditional guided bone regeneration techniques include flap mobilization and placement of a bone graft, often with the use of space-maintaining devices and cell-occlusive membranes. This approach is associated with frequent complications that negatively affect the outcome of the augmentation and the peri-implant soft tissue esthetics. Although current tunneling techniques have focused on periodontal soft tissue applications, earlier publications described their use for horizontal augmentation of mandibular posterior edentulous ridges in full-denture patients...
March 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28194345/transaxillary-subpectoral-placement-of-cardiac-implantable-electronic-devices-in-young-female-patients
#6
Joo Hyun Oh, Chae Min Kim, Seung Yong Song, Jae Sun Uhm, Dae Hyun Lew, Dong Won Lee
BACKGROUND: The current indications of cardiac implantable electronic devices (CIEDs) have expanded to include young patients with serious cardiac risk factors, but CIED placement has the disadvantage of involving unsightly scarring and bulging of the chest wall. A collaborative team of cardiologists and plastic surgeons developed a technique for the subpectoral placement of CIEDs in young female patients via a transaxillary approach. METHODS: From July 2012 to December 2015, subpectoral CIED placement via an axillary incision was performed in 10 young female patients, with a mean age of 25...
January 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/28166138/postmastectomy-breast-reconstruction-combined-with-contralateral-breast-augmentation-for-taiwanese-women-with-small-breasts
#7
Hung-Hui Liu, I-Han Chiang, Chih-Hsin Wang, Hao-Yu Chiao, Chang-Yi Chou, Chi-Yu Wang, Yuan-Sheng Tzeng, Tim-Mo Chen, Shyi-Gen Chen
BACKGROUND: Although autogenous tissue-based breast reconstruction has been widely used in the past decade, implant-based breast reconstruction is more often used in Taiwan because Asian women are generally slender with small breasts. For patients with very small breasts, it is hard to achieve the goal of reconstructing a similar breast to the contralateral one, even with the smallest size implant available commercially. Therefore, these patients need not only breast reconstruction but also contralateral breast augmentation...
February 4, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28162855/histopathological-and-scanning-electron-microscopy-findings-of-retrieved-porous-polyethylene-implants
#8
S-Y Choi, H-I Shin, T-Y Kwon, T-G Kwon
Porous polyethylene (PPE) implants are biocompatible alloplastic materials commonly used for facial augmentation. However, the effect of sub-periosteal PPE application on the surrounding tissues has not been analyzed clearly. This report documents the case of a 22-year-old woman who underwent peri-alar augmentation with PPE to improve midface retrusion. Although no infection or inflammation occurred at the surgical site, the patient requested removal of the PPE implant for aesthetic reasons alone at 1 year after the surgery...
February 2, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28162212/-endoscopic-nipple-sparing-mastectomy-with-skin-lifting-system-followed-by-immediate-breast-reconstruction
#9
S Guan, Y Wang, K T Zhang, X Y Li, J X Wu
Objective: To discuss the surgical treatment and efficacy of endoscopic nipple-sparing mastectomy with skin lifting system (ENSMSLS) followed by immediate breast reconstruction. Methods: ENSMSLS was conducted on 21 patients followed by immediate breast reconstruction with implant via axillary incision from August 2014 to January 2016 in Oncology Center, Beijing Tongren Hospital, Capital Medical University. These 21 patients were frequency matched with 21 patients, who received nipple-sparing mastectomy via loop periareolar incision from November 2012 to May 2015 in the same center...
February 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28156217/virtual-surgical-planning-and-3d-printing-in-repeat-calvarial-vault-reconstruction-for-craniosynostosis-technical-note
#10
Melissa LoPresti, Bradley Daniels, Edward P Buchanan, Laura Monson, Sandi Lam
Repeat surgery for restenosis after initial nonsyndromic craniosynostosis intervention is sometimes needed. Calvarial vault reconstruction through a healed surgical bed adds a level of intraoperative complexity and may benefit from preoperative and intraoperative definitions of biometric and aesthetic norms. Computer-assisted design and manufacturing using 3D imaging allows the precise formulation of operative plans in anticipation of surgical intervention. 3D printing turns virtual plans into anatomical replicas, templates, or customized implants by using a variety of materials...
February 3, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28134640/rehabilitation-of-the-work-accident-related-traumatic-mandible-with-iliac-free-flap-distraction-osteogenesis-and-dental-implants
#11
Yavuz Findik, Timuçin Baykul, Mustafa Asim Aydin, Selman Altuntaş, Zeynep Başağaoğlu Demirekin
Mandibular bone defects due to extensive trauma impair occlusion and affect the aesthetics of facial contouring, making it difficult to obtain a satisfactory outcome. Distraction osteogenesis and free flap is an effective and aesthetic treatment option for rehabilating these defects. In this clinical report, the authors present rehabilitation of a wide mandibular traumatic defect due to a work-related accident with iliac free flap, distraction osteogenesis, and dental implants.
January 27, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28133036/-consideration-of-safety-of-implant-based-breast-reconstruction-with-postreconstruction-radiotherapy-for-breast-cancer
#12
Naoki Aomatsu, Seika Tei, Goichi Haraoka, Gen Tsujio, Yoshihito Yamakoshi, En Wang, Daisuke Nagashima, Toshiki Hirakawa, Takehiko Iwauchi, Takafumi Nishii, Junya Morimoto, Kazunori Nakazawa, Yasutake Uchima, Kazuhiro Takeuchi
: There is controversy as to whether immediate autologous breast reconstruction followed by postoperative radiotherapy has acceptable complications and aesthetic outcomes. PURPOSE: To evaluate the interval between surgery and adjuvant chemotherapy and radiation in patients treated with mastectomy and immediate expander-implant reconstruction, and to evaluate locoregional and distant control and cosmesis in these patients. METHODS AND MATERIALS: Between 2011 and 2015, 9 patients with breast cancer were treated at our institution with definitive mastectomy and axillary lymph node dissection followed by immediate tissue expander placement and postreconstruction radiotherapy...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28130561/breast-durometer-mammometer-a-novel-device-for-measuring-soft-tissue-firmness-and-its-application-in-cosmetic-breast-surgery
#13
Tim Brown, Stephen Brown, Tracey Murphy
The measurement of soft-tissue firmness has many potential applications in medical practice. This study reports a user-friendly, novel device that is capable of measuring changes in soft-tissue firmness in a reproducible manner. The study reports the development of the equipment and how it has been applied to breast implant surgery. The device was tested for both intra- and inter-observer variability on an in vitro model, using a breast implant. Once reproducibility was confirmed, breast firmness was measured on a series of patients who underwent sub-fascial breast augmentation (n = 50) to examine how it varied post-operatively...
January 27, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28126994/unilateral-removable-partial-dentures
#14
W A Goodall, A C Greer, N Martin
Removable partial dentures (RPDs) are widely used to replace missing teeth in order to restore both function and aesthetics for the partially dentate patient. Conventional RPD design is frequently bilateral and consists of a major connector that bridges both sides of the arch. Some patients cannot and will not tolerate such an extensive appliance. For these patients, bridgework may not be a predictable option and it is not always possible to provide implant-retained restorations. This article presents unilateral RPDs as a potential treatment modality for such patients and explores indications and contraindications for their use, including factors relating to patient history, clinical presentation and patient wishes...
January 27, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28124093/neoadjuvant-radiotherapy-followed-by-mastectomy-and-immediate-breast-reconstruction-an-alternative-treatment-option-for-locally-advanced-breast-cancer
#15
Montserrat Pazos, Stefanie Corradini, Darius Dian, Vera von Bodungen, Nina Ditsch, Rachel Wuerstlein, Stephan Schönecker, Nadia Harbeck, Heike Scheithauer, Claus Belka
BACKGROUND: The optimal sequence of mastectomy with immediate breast reconstruction (IBR) and radiotherapy (RT) for the treatment of locally advanced breast cancer (LABC) is still under debate. Increased rates of postoperative complications are described following postmastectomy RT. Neoadjuvant RT aims to improve the aesthetic results and simplify the reconstructive pathway. PATIENTS: A total of 22 patients diagnosed with LABC and treated with neoadjuvant RT followed by mastectomy and IBR between 04/2012 and 03/2015 were retrospectively analyzed...
January 25, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28121858/prepectoral-implant-based-breast-reconstruction-rationale-indications-and-preliminary-results
#16
Steven Sigalove, G Patrick Maxwell, Noemi M Sigalove, Toni L Storm-Dickerson, Nicole Pope, Jami Rice, Allen Gabriel
: Implant-based breast reconstruction is currently performed with placement of the implant in a subpectoral pocket beneath the pectoralis major muscle, by means of the dual-plane approach. Although the safety and breast aesthetics of this approach are well recognized, it is not without concerns. Animation deformities and accompanying patient discomfort, which are direct consequences of muscle elevation, can be severe in some patients. Moving the implant prepectorally may eliminate these concerns...
February 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28121852/outcome-evaluation-after-2023-nipple-sparing-mastectomies-our-experience
#17
Roy De Vita, Giovanni Zoccali, Ernesto Maria Buccheri, Maurizio Costantini, Claudio Botti, Marcello Pozzi
BACKGROUND: Although quadrantectomy and lumpectomy help diminish the psychological and physical devastation inflicted, mastectomy is still elected in 20 to 30 percent of breast cancers. Although initially inciting controversy over heightened risk of local recurrences, recent studies maintain that nipple-sparing mastectomy can be used in any patient qualifying for total mastectomy and also improves aesthetic and psychologic outcomes. The manner in which mastectomy influences reconstructive implant outcomes has been documented by several groups...
February 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28100938/public-perceptions-of-plastic-surgery-practice-in-brazil
#18
Rafael Denadai, Karin Milleni Araujo, Hugo Samartine, Rodrigo Denadai, Cassio Eduardo Raposo-Amaral
The perception of medical specialists by the public has a significant effect on health-care decisions, research funding allocation, and implantation of educational measures. The purpose of this survey was to assess the public's perception of the field of plastic surgery practice. General public members (n = 1290) completed a survey where they matched nine specialties with 28 plastic surgery-related scenarios. Response patterns were distributed as "plastic surgeon alone," "plastic surgeon combined with other specialists," or "no plastic surgeon...
December 2016: Indian Journal of Surgery
https://www.readbyqxmd.com/read/28091960/alveolar-distraction-in-elderly-patients-by-implant-borne-devices-for-functional-aesthetic-dental-rehabilitation-of-the-jaws
#19
Franco Carlino, Giuseppe Pantaleo, Antonio Borri, Federico Tripodi, Antonio Cortese
No abstract text is available yet for this article.
January 13, 2017: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/28073285/muscle-nerve-muscle-grafting-for-facial-reanimation-in-rats
#20
Steven J Charous, Jeffery M Hotaling, Bridget D Burgess, Joshua M Sappington, James Park, Grant Turek, Eileen M Foecking
OBJECTIVE: Facial paralysis is a devastating condition leaving patients with a myriad of aesthetic and functional consequences. Muscle-nerve-muscle (MNM) neurotization is a reinnervation technique that involves implanting an autogenous nerve graft as a conduit between an innervated "donor" muscle and a denervated "recipient" muscle. We investigated the use of MNM reinnervation, alone or in combination with electrical stimulation (ES) and testosterone propionate (TP) in comparison to nerve reanastomosis (RE), on functional recovery following rat facial nerve injury...
January 1, 2017: Annals of Otology, Rhinology, and Laryngology
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