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Article
What are the optimal targeting visualizations for performing surgical navigation of iliosacral screws? A user study
Complex orthopaedic procedures, such as iliosacral screw (ISS) fixations, can take advantage of surgical navigation technology to achieve accurate results. Although the impact of surgical navigation on outcome...
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Article
Can uncertainty estimation predict segmentation performance in ultrasound bone imaging?
Segmenting bone surfaces in ultrasound (US) is a fundamental step in US-based computer-assisted orthopaedic surgeries. Neural network-based segmentation techniques are a natural choice for this, given promisin...
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Article
How should we lengthen post-traumatic limb defects? a systematic review and comparison of motorized lengthening systems, combined internal and external fixation and external fixation alone
Various external fixation systems for lower extremity long bone deformities have been used to various degrees of success, while newer mechanical lengthening nail (MLN) systems offer the potential for improved ...
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Article
The effect of artificial X-rays on C-arm positioning performance in a simulated orthopaedic surgical setting
We designed an Artificial X-ray Imaging System (AXIS) that generates simulated fluoroscopic X-ray images on the fly and assessed its utility in improving C-arm positioning performance by C-arm users with littl...
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Article
Open AccessVariation in surgical demand and time to hip fracture repair: a Canadian database study
Competing demands for operative resources may affect time to hip fracture surgery. We sought to determine the time to hip fracture surgery by variation in demand in Canadian hospitals.
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Article
A visual odometry base-tracking system for intraoperative C-arm guidance
C-arms are portable X-ray devices used to generate radiographic images in orthopedic surgical procedures. Evidence suggests that scouting images, which are used to aid in C-arm positioning, result in increased...
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Chapter and Conference Paper
Optimal Targeting Visualizations for Surgical Navigation of Iliosacral Screws
Surgical navigation can be used for complex orthopaedic procedures, such as iliosacral screw (ISS) fixations, to achieve accurate results. Although studies have documented the impact of navigation on surgical ...
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Article
A comparative analysis of intensity-based 2D–3D registration for intraoperative use in pedicle screw insertion surgeries
Although multiple algorithms have been reported that focus on improving the accuracy of 2D–3D registration techniques, there has been relatively little attention paid to quantifying their capture range. In thi...
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Article
Fast and automatic bone segmentation and registration of 3D ultrasound to CT for the full pelvic anatomy: a comparative study
Ultrasound (US) is a safer alternative to X-rays for bone imaging, and its popularity for orthopedic surgical navigation is growing. Routine use of intraoperative US for navigation requires fast, accurate and ...
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Article
Time trends in hospital stay after hip fracture in Canada, 2004–2012: database study
Changes in bed management and access policy aimed to shorten Canadian hip fracture hospital stay. Secular trends in hip fracture total, preoperative, and postoperative stay are unknown. Hip fracture stay short...
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Article
Automatic extraction of bone surfaces from 3D ultrasound images in orthopaedic trauma cases
3D ultrasound (US) imaging has the potential to become a powerful alternative imaging modality in orthopaedic surgery as it is radiation-free and can produce 3D images (in contrast to fluoroscopy) in near-real...
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Article
Open AccessA sco** review of biomechanical testing for proximal humerus fracture implants
Fixation failure is a relatively common sequela of surgical management of proximal humerus fractures (PHF). The purpose of this study is to understand the current state of the literature with regard to the bio...
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Article
Open AccessA sco** review of the proximal humerus fracture literature
Proximal humerus fractures are a common fragility fracture that significantly affects the independence of older adults. The outcomes of these fractures are frequently disappointing and previous systematic revi...
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Chapter and Conference Paper
3D Ultrasound-CT Registration in Orthopaedic Trauma Using GMM Registration with Optimized Particle Simulation-Based Data Reduction
Accurate real-time registration of intra-operative ultrasound (US) to computed tomography (CT) remains a challenging problem. In orthopedic applications, a recent promising approach proposed the use of Gaussia...
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Article
Rheology of osteoarthritic synovial fluid mixed with viscosupplements: A pilot study
Osteoarthritis (OA) is a degenerative joint disease that is characterized by the breakdown of articular cartilage. Rheology of synovial fluid is of interest because of its significance in joint lubrication. Ho...
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Article
Open AccessPost-discharge management following hip fracture - get you back to B4: A parallel group, randomized controlled trial study protocol
Fall-related hip fractures result in significant personal and societal consequences; importantly, up to half of older adults with hip fracture never regain their previous level of mobility. Strategies of follo...
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Chapter and Conference Paper
Towards Real-Time 3D US to CT Bone Image Registration Using Phase and Curvature Feature Based GMM Matching
In order to use pre-operatively acquired computed tomography (CT) scans to guide surgical tool movements in orthopaedic surgery, the CT scan must first be registered to the patient’s anatomy. Three-dimensional...
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Article
Medicago truncatula, a model plant for studying the molecular genetics of theRhizobium-legume symbiosis
Medicago truncatula has all the characteristics required for a concerted analysis of nitrogen-fixing symbiosis withRhizobium using the tools of molecular biology, cellular biology and gen...
