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…

Haptic computer-assisted patient-specific preoperative planning for orthopedic fractures surgery

Abstract Purpose The aim of orthopedic trauma surgery is to restore the anatomy and function of displaced bone fragments to support osteosynthesis. For complex cases, including pelvic bone and multi-fragment femoral neck and distal radius fractures, preoperative planning with a…

The role of automatic computer-aided surgical trajectory planning in improving the expected safety of stereotactic neurosurgery

Abstract Purpose Minimal invasion computer-assisted neurosurgical procedures with various tool insertions into the brain may carry hemorrhagic risks and neurological deficits. The goal of this study is to investigate the role of computer-based surgical trajectory planning tools in improving the…

Haptic interface for computer-assisted patient specific preoperative planning in orthopedic fractures surgery

Abstract This study presents a haptic-based patient specific preoperative planning tool for orthopedic surgeries designed to restore pelvic bone fractures. The tool allows planning of both of mains steps of an orthopedic surgery: reduction and fixation. The planning is carry…

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…

Automatic Bone Fracture Reduction by Fracture Contact Surface Identification and Registration

Abstract Bone fracture reduction is an essential step in the treatment of orthopedic fractures. It consists of determining the position and orientation of the fractured bone fragments for their fixation with implants. This paper presents a new method for the…

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…

Reduced risk trajectory planning in image-guided keyhole neurosurgery

Abstract Purpose: The authors present and evaluate a new preoperative planning method and computer software designed to reduce the risk of candidate trajectories for straight rigid tool insertion in image-guided keyhole neurosurgery. Methods: Trajectories are computed based on the surgeon-defined…

Can a partial volume edge effect reduction algorithm improve the repeatability of subject-specific finite element models of femurs obtained from CT data?

Abstract The reliability of patient-specific finite element (FE) modelling is dependent on the ability to provide repeatable analyses. Differences of inter-operator generated grids can produce variability in strain and stress readings at a desired location, which are magnified at the…

Modeling and preoperative planning for kidney surgery

Abstract Kidney surgery is a common and complex procedure. The procedure is required to remove kidney tumors and to treat a variety of renal malfunctions. Nowadays, a minimally invasive approach is the method of choice for partial nephrectomy operations. This…

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…

Page 1 of 3123