Current state of computer navigation and robotics in unicompartmental and total knee arthroplasty: a systematic review with meta-analysis

Abstract Recently, there is a growing interest in surgical variables that are intraoperatively controlled by orthopaedic surgeons, including lower leg alignment, component positioning and soft tissues balancing. Since more tight control over these factors is associated with improved outcomes of unicompartmental knee arthroplasty and total…

Computer Aided Orthopaedic Surgery: incremental shift or paradigm change?

Computer Aided Orthopaedic Surgery (CAOS) is now about 25 years old. Unlike Neurosurgery, Computer Aided Surgery has not become the standard of care in Orthopaedic Surgery. In this paper, we provide the technical and clinical context raised by this observation…

Brain Tissue Deformation Tracking with a Paraboloid Model for Outlier Detection

Abstract This paper describes a new method for real-time quantification of brain shift during craniotomy surgery. Our method estimates the deformation on the visible surface of the brain by tracking the 3D location of automatically selected points on the brain…

Planning safe trajectories in image-guided keyhole neurosurgery

Abstract Many image-guided keyhole neurosurgery procedures require the precise targeting of tumors and anatomical structures with a surgical tool inside the brain based on pre-operative CT/MRI images. A misplacement of the surgical tool from the planned trajectory may result severe…

Fiducial Optimization for Minimal Target Registration Error in Image-Guided Neurosurgery

Abstract This paper presents new methods for the optimal selection of anatomical landmarks and optimal placement of fiducial markers in image-guided neurosurgery. These methods allow the surgeon to optimally plan fiducial marker locations on routine diagnostic images before preoperative imaging…

Target and Trajectory Clinical Application Accuracy in Neuronavigation

Abstract BACKGROUND: Catheter, needle, and electrode misplacement in navigated neurosurgery can result in ineffective treatment and severe complications. OBJECTIVE: To assess the Ommaya ventricular catheter localization accuracy both along the planned trajectory and at the target. METHODS: We measured the…

Assessment of two 3-D fluoroscopic systems for articular fracture reduction: a cadaver study

Abstract Objective The most commonly used imaging device for assessment of fracture reduction is the two-dimensional X-ray fluoroscope. Two recently introduced 3D fluoroscopic devices, the Siremobil ISO-C3D (Siemens) and the C-InSight (Mazor Surgical Technologies), enable the surgeon to obtain spatial…

A Novel Field-of-View Augmentation Wand for C-arm Computed Tomography-Like Fluoroscopy-Based Intraoperative Navigation New Technology

Abstract Summary: Intraoperative fluoroscopically based computed tomography, integrated with a navigation system, holds great potential for improving visualization and navigation in orthopedic procedures. However, a limited field of view generated by the fluoroscopically based computed tomography has imposed a serious limitation,…

Improving accuracy and safety in image-guided keyhole neurosurgery

Abstract Image-guided keyhole neurosurgery consists of targeting a straight surgical tool, such as a needle or a catheter, with a support guidance system towards a target location inside the brain. The target and trajectory are defined on a preoperative MRI/CT…

Surface-based facial scan registration in neuronavigation procedures: a clinical study

Abstract Object. Surface-based registration (SBR) with facial surface scans has been proposed as an alternative for the commonly used fiducial-based registration in image-guided neurosurgery. Recent studies comparing the accuracy of SBR and fiducial-based registration have been based on a few…

Localization and registration accuracy in image guided neurosurgery: a clinical study

Abstract Purpose To measure and compare the clinical localization and registration errors in image-guided neurosurgery, with the purpose of revising current assumptions. Materials and methods Twelve patients who underwent brain surgeries with a navigation system were randomly selected. A neurosurgeon…

Advanced Planning and Intra-operative Validation for Robot-Assisted Keyhole Neurosurgery In ROBOCAST

Abstract ROBOCAST is a multi-national project comprising several institutes which aim at outlining and implementing a prototype system for advanced, robot-assisted keyhole neurosurgery. This paper reports mainly on software and sensor aspects of the system in the pre- and intra-operative…

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