The international journal of medical robotics + computer assisted surgery : MRCAS
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Comparative Study
Robotic versus laparoscopic rectal resection: is there any real difference? A comparative single center study.
Robotic surgery has gained worldwide acceptance in the past decade, and several studies have shown that this technique is safe and feasible. The aim of this study is to compare main outcomes of laparoscopic and robotic rectal resection. ⋯ The robotic approach shows a lower conversion rate in low rectal cancer but with a longer operative time compared with the laparoscopic technique.
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Comparative Study
Comparison of the initial surgical experience with robotic and laparoscopic myomectomy.
To compare the initial surgical outcomes of robotic and laparoscopic myomectomy in patients with symptomatic uterine myomas. ⋯ RM may have some additional advantages compared with LM in terms of bleeding and uterine suturing without compromising operation duration, at least when surgeons were at the beginning of their experience of endoscopic treatment of symptomatic uterine myomas.
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A prerequisite for the successful design and use of robots in neurosurgery is knowledge of the forces exerted by surgeons during neurosurgical procedures. The aim of the present cadaver study was to measure the surgical instrument forces exerted during microneurosurgery. ⋯ The forces necessary to manipulate brain tissue were surprisingly low and varied depending on the anatomical structure being manipulated, and the maneuver performed. Knowledge of such forces could well increase the safety of microsurgery.
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A prototype magnetic resonance imaging (MRI)-compatible positioning device that navigates a high intensity focused ultrasound (HIFU) transducer is presented. The positioning device has three user-controlled degrees of freedom that allow access to brain targets using a lateral coupling approach. The positioning device can be used for the treatment of brain cancer (thermal mode ultrasound) or ischemic stroke (mechanical mode ultrasound). ⋯ A simple, cost effective, portable positioning device has been developed which can be used in virtually any clinical MRI scanner since it can be placed on the table of the MRI scanner. This system can be used to treat in the future patients with brain cancer and ischemic stroke.
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Reversed shoulder arthroplasty is an alternative to total shoulder arthroplasty for various indications. The long-term results depend on stable bone fixation, and correct positioning of the glenoid component. The potential contribution of image guidance for reversed shoulder arthroplasty procedures was tested in vitro. ⋯ Accurate positioning of the glenoidal baseplate in the axial scapular plane can be improved using 3D C-arm navigation for reversed shoulder arthroplasty. However, computer navigation may not improve the inferior tilt of the component or the position in the inferior glenoid to avoid scapular notching. Nevertheless, further studies are required to confirm these findings in the clinical setup.