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International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS

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https://www.readbyqxmd.com/read/28524620/clinical-performance-and-survivorship-of-navigated-floating-platform-mobile-bearing-total-knee-arthroplasty-a-minimum-10-year-follow-up
#1
Sang-Min Kim, Jai-Gon Seo, Seung-Jae Lim, Hyung-Tae Lim, Chang-Ho Cho, Young-Wan Moon
BACKGROUND: The purpose of this study is to report the outcome of navigation-assisted cruciate-retaining total knee arthroplasty (TKA) using one type of cemented, second-generation, floating-platform (FP), mobile-bearing system. METHODS: Forty-two patients who underwent cruciate retaining TKAs using e.motion-FP prostheses under navigational guidance were retrospectively reviewed. The preoperative diagnosis was osteoarthritis in all knees except one rheumatoid arthritis...
May 19, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28524449/technical-feasibility-and-safety-of-image-guided-parieto-occipital-ventricular-catheter-placement-with-the-assistance-of-a-wearable-head-up-display
#2
Jang W Yoon, Robert E Chen, Karim ReFaey, Roberto J Diaz, Ronald Reimer, Ricardo J Komotar, Alfredo Quinones-Hinojosa, Benjamin L Brown, Robert E Wharen
BACKGROUND: Wearable technology is growing in popularity as a result of its ability to interface with normal human movement and function. METHODS: Using proprietary hardware and software, neuronavigation images were captured and transferred wirelessly via a password-encrypted network to the head-up display. The operating surgeon wore a loupe-mounted wearable head-up display during image-guided parieto-occipital ventriculoperitoneal shunt placement in two patients...
May 19, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28513095/research-of-the-master-slave-robot-surgical-system-with-the-function-of-force-feedback
#3
Yunyong Shi, Chaozheng Zhou, Le Xie, Yongjun Chen, Jun Jiang, Zhenfeng Zhang, Ze Deng
BACKGROUND: Surgical robots lack force feedback, which may lead to operation errors. In order to improve surgical outcomes, this research developed a new master-slave surgical robot, which was designed with an integrated force sensor. METHODS: The new structure designed for the master-slave robot employs a force feedback mechanism. A six-dimensional force sensor was mounted on the tip of the slave robot's actuator. Sliding model control was adopted to control the slave robot...
May 17, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28508529/mastery-learning-does-the-method-of-learning-make-a-difference-in-skills-acquisition-for-robotic-surgery
#4
Karen L Siroen, Christopher D W Ward, Abelardo Escoto, Michael D Naish, Yves Bureau, Rajni V Patel, Christopher M Schlachta, Sayra M Cristancho, Ana Luisa Trejos
BACKGROUND: Few studies compare the effectiveness of blocked vs random practice conditions in minimally invasive surgery training, and none have evaluated these in robotic surgery training. METHODS: The dV-Trainer(®) and the da Vinci(®) Surgical System (dVSS) were used to compare practice conditions. Forty-two participants were randomized into blocked and random practice groups. Each participant performed five tasks: Ring Walk, Thread the Rings, Needle Targeting, Suture Sponge and Tubes Level 2...
May 16, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28497536/robotic-guided-waterjet-cutting-technique-for-high-tibial-dome-osteotomy-a-pilot-study
#5
Eduardo M Suero, Ralph Westphal, David Zaremba, Musa Citak, Nael Hawi, Mustafa Citak, Timo Stuebig, Christian Krettek, Emmanouil Liodakis
BACKGROUND: Oscillating saws generate high levels of heat (up to 150°C), which can lead to tissue necrosis, delayed healing and infection. Abrasive waterjet-cutting techniques have been described as a new tool to perform bone cuts, with less heat generation. METHODS: Four lower-limbs of four human alcohol conserved cadavers were tested. Navigation references were attached to the tibia and an intraoperative fluoroscopy-based 3D scan was obtained. A 1.2 mm diameter nozzle was attached to a robotic arm, which was guided to follow a pre-specified path...
May 12, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28480999/validation-of-patient-specific-surgical-guides-for-femoral-neck-cutting-in-total-hip-arthroplasty-through-the-anterolateral-approach
#6
Takashi Sakai, Hidetoshi Hamada, Masaki Takao, Tsuyoshi Murase, Hideki Yoshikawa, Nobuhiko Sugano
BACKGROUND: The aim of this study was to validate the effectiveness of neck-cut patient-specific surgical guides (PSGs) for femoral component implantation in total hip arthroplasty (THA) through the anterolateral approach compared with that without PSG. METHODS: A total of 32 fresh cadaveric hips were included. Anatomical stem implantation with wide-base-contact PSG (AWP group) and without PSG (control group) were compared. The absolute errors between preoperative planning and PSG setting (E1), as well as those between preoperative planning and postoperative component implantation (E2) were evaluated using CT...
May 8, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28471060/modeling-and-evaluation-of-hand-eye-coordination-of-surgical-robotic-system-on-task-performance
#7
Yuanqian Gao, Shuxin Wang, Jianmin Li, Aimin Li, Hongbin Liu, Yuan Xing
BACKGROUND: Robotic-assisted minimally invasive surgery changes the direct hand and eye coordination in traditional surgery to indirect instrument and camera coordination, which affects the ergonomics, operation performance, and safety. METHODS: A camera, two instruments, and a target, as the descriptors, are used to construct the workspace correspondence and geometrical relationships in a surgical operation. A parametric model with a set of parameters is proposed to describe the hand-eye coordination of the surgical robot...
May 4, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28467024/endoluminal-surgical-triangulation-2-0-a-new-flexible-surgical-robot-preliminary-pre-clinical-results-with-colonic-submucosal-dissection
#8
András Légner, Michele Diana, Péter Halvax, Yu-Yin Liu, Lucile Zorn, Philippe Zanne, Florent Nageotte, Michel De Mathelin, Bernard Dallemagne, Jacques Marescaux
BACKGROUND: Complex intraluminal surgical interventions of the gastrointestinal tract are challenging due to the limitation of existing instruments. Our group has developed a master-slave robotic flexible endoscopic platform that provides instrument triangulation in an endoluminal environment. MATERIALS AND METHODS: Colonic endoscopic submucosal dissections (ESD) were carried out in eight pigs. The robot was introduced transanally. A combination of adapted tele-operated instruments was used...
May 3, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28467005/real-time-simulation-of-soft-tissue-deformation-and-electrocautery-procedures-in-laparoscopic-rectal-cancer-radical-surgery
#9
Yuan Sui, Jun J Pan, Hong Qin, Hao Liu, Yun Lu
BACKGROUND: Laparoscopic surgery (LS), also referred to as minimally invasive surgery, is a modern surgical technique which is widely applied. The fulcrum effect makes LS a non-intuitive motor skill with a steep learning curve. METHODS: A hybrid model of tetrahedrons and a multi-layer triangular mesh are constructed to simulate the deformable behavior of the rectum and surrounding tissues in the Position-Based Dynamics (PBD) framework. A heat-conduction based electric-burn technique is employed to simulate the electrocautery procedure...
May 3, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28466997/external-force-estimation-and-implementation-in-robotically-assisted-minimally-invasive-surgery
#10
Hongqiang Sang, Jintian Yun, Reza Monfaredi, Emmanuel Wilson, Hadi Fooladi, Kevin Cleary
BACKGROUND: Robotically assisted minimally invasive surgery can offer many benefits over open surgery and laparoscopic minimally invasive surgery. However, currently, there is no force sensing and force feedback. METHODS: This research was implemented using the da Vinci research kit. An external force estimation and implementation method was proposed based on dynamics and motor currents. The dynamics of the Patient Side Manipulator was modeled. The dynamic model was linearly parameterized...
May 3, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28387448/an-adaptive-and-fully-automatic-method-for-estimating-the-3d-position-of-bendable-instruments-using-endoscopic-images
#11
Paolo Cabras, Florent Nageotte, Philippe Zanne, Christophe Doignon
BACKGROUND: Flexible bendable instruments are key tools for performing surgical endoscopy. Being able to measure the 3D position of such instruments can be useful for various tasks, such as controlling automatically robotized instruments and analyzing motions. METHODS: An automatic method is proposed to infer the 3D pose of a single bending section instrument, using only the images provided by a monocular camera embedded at the tip of the endoscope. The proposed method relies on colored markers attached onto the bending section...
April 7, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28387436/2d-3d-reconstruction-of-the-distal-femur-using-statistical-shape-models-addressing-personalized-surgical-instruments-in-knee-arthroplasty-a-feasibility-analysis
#12
Pietro Cerveri, Costanza Sacco, Gianluca Olgiati, Alfonso Manzotti, Guido Baroni
BACKGROUND: Personalized surgical instruments (PSI) have gained success in the domain of total knee replacement, demonstrating clinical outcomes similar or even superior to both traditional and navigated surgeries. The key requirement for prototyping PSI is the availability of the digital bony surface. In this paper, we aim at verifying whether the 2D/3D reconstruction of the distal femur, based on statistical shape models (SSM), grants sufficient accuracy, especially in the condylar regions, to support a PSI technique...
April 7, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28371219/a-single-port-surgical-robot-system-with-novel-elbow-joint-mechanism-for-high-force-transmission
#13
Minho Hwang, Un-Je Yang, Deokyoo Kong, Deok Gyoon Chung, June-Gi Lim, Dong-Ho Lee, Daniel H Kim, Dongsuk Shin, Taeho Jang, Jeong-Whun Kim, Dong-Soo Kwon
BACKGROUND: Despite its evident clinical benefits, single-incision laparoscopic surgery (SILS) imposes inherent limitations of collision between external arms and inadequate triangulation because multiple instruments are inserted through a single port at the same time. METHODS: A robot platform appropriate for SILS was developed wherein an elbowed instrument can be equipped to easily create surgical triangulation without the interference of robot arms. A novel joint mechanism for a surgical instrument actuated by a rigid link was designed for high torque transmission capability...
April 3, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28371198/evaluation-of-the-new-c-arm-guiding-system-clearguide%C3%A2-in-an-orthopaedic-and-trauma-operating-theatre
#14
Marcus Christian Müller, Sophie Frege, Andreas Christian Strauss, Martin Gathen, Michael Windemuth, Eva Nadine Striepens
BACKGROUND: The objective was to evaluate whether the new intraoperative C-arm guiding system ClearGuide® (CG) reduces radiation exposure of the staff in an Orthopaedic and Trauma operation theatre. METHODS: Data of 95 patients CG was used were retrospectively compared using matched-pair analysis with controls without CG. Radiation dose (RD), fluoroscopic time (FT) and operation time (OT) were analysed in ten types of operative procedures. RESULTS: Use of CG led to a significant reduction (p ≤ 0...
April 3, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28371360/the-application-of-a-blunt-tip-needle-to-suture-the-dorsal-venous-complex-in-robot-assisted-laparoscopic-radical-prostatectomy
#15
Chao Zhang, Huiqing Wang, Chen Ye, Fei Guo, Bo Yang, Chuanliang Xu, Yinghao Sun
OBJECTIVES: Complete haemostasis of the dorsal venous complex (DVC) is of great importance in robot-assisted radical prostatectomy. In this study, we investigated the efficacy of blunt-tip needles in the surgery. METHODS: Cases of robot-assisted laparoscopic radical prostatectomy were reviewed. If a blunt-tip needle had been used to suture the DVC, the patient was recruited to the blunt-tip group. If a regular needle was used, the patient was recruited to the control group...
March 31, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28370840/effect-of-femoral-tunnel-positions-on-graft-stress-in-outside-in-acl-reconstruction-surgery-during-continuous-knee-motion-a-simulation-study
#16
Kyungmin Kang, Tae Soo Bae
BACKGROUND: Previous studies regarding the optimal femoral tunnel location for an anterior cruciate ligament (ACL) reconstruction were based on static experiments at specific angles, and did not consider continuous motion of the knee. METHODS: Twenty-four surgical sites were set and continuous kinematic data, obtained from motion analysis, was used to describe knee movement. The bending angle and stress of the ACL graft as well as the length of the femoral tunnel was calculated through multi-flexible body dynamics analysis...
March 31, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28371283/outcomes-in-patients-undergoing-robotic-reconstructive-uterovaginal-anastomosis-of-congenital-cervical-and-vaginal-atresia
#17
Ying Zhang, Yisong Chen, Keqin Hua
OBJECTIVE: To introduce our experience of robotic surgery of reconstructive uterovaginal anastomosis and operative outcomes in congenital cervical and vaginal atresia patients. METHODS: Clinical observation and follow-up of four patients with congenital cervical and vaginal atresia who underwent robotic reconstruction of cervix and vagina by SIS (small intestinal submucosa, SIS) graft. RESULTS: Average patient age was 13.8 ± 2.2. Patients complained of severe periodic abdominal pain...
March 29, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28370919/an-automatic-and-accurate-registration-method-for-electro-anatomical-map-and-ct-surface
#18
Lixia Shu, Jin Wang, Deyong Long, Changyan Lin
BACKGROUND: Electro-anatomical maps (EAM) and CT surface registration are widely used for catheter navigation in atrial fibrillation ablations. However, few studies have investigated the registration algorithm. Moreover, some of them are semiautomatic, so that physicians must be proficient; some are inaccurate for catheter navigation. A both automatic and accurate registration method is needed. METHOD: A Hausdorff distance based approach (HD) was proposed for EAM/CT registration...
March 29, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28345294/compact-teleoperated-laparoendoscopic-single-site-robotic-surgical-system-kinematics-control-and-operation
#19
Oran Jacob Isaac-Lowry, Steele Okamoto, Sahba Aghajani Pedram, Russell Woo, Peter Berkelman
BACKGROUND: To date a variety of teleoperated surgical robotic systems have been developed to improve a surgeon's ability to perform demanding single-port procedures. However typical large systems are bulky, expensive, and afford limited angular motion, while smaller designs suffer complications arising from limited motion range, speed, and force generation. This work was to develop and validate a simple, compact, low cost single site teleoperated laparoendoscopic surgical robotic system, with demonstrated capability to carry out basic surgical procedures...
March 27, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28276146/early-experience-of-laparoscopic-and-robotic-hybrid-pancreaticoduodenectomy
#20
Hongbeom Kim, Jae Ri Kim, Youngmin Han, Wooil Kwon, Sun-Whe Kim, Jin-Young Jang
BACKGROUND: Laparoscopic surgery and robotic surgery have their own merits and demerits. The aim of this study was to evaluate early experiences of hybrid pancreaticoduodenectomy (PD) and to identify the learning curve of robotic surgery. METHODS: Sixteen patients underwent hybrid PD from August 2015 to February 2016. The outcomes were compared with those of an open PD group by the same operator during the same period. The resection time and anastomosis time were analyzed...
March 9, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
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