A5055866859- Orthopedic Surgery and Rehabilitation
- Medical Malpractice and Liability Issues
- Bone fractures and treatments
- Artificial Intelligence in Healthcare and Education
- Foot and Ankle Surgery
- Lower Extremity Biomechanics and Pathologies
- Surgical site infection prevention
- Elbow and Forearm Trauma Treatment
- Radiology practices and education
- Trauma and Emergency Care Studies
- Orthopedic Infections and Treatments
- Sports injuries and prevention
- Tendon Structure and Treatment
- Traumatic Ocular and Foreign Body Injuries
- Surgical Sutures and Adhesives
- Medical Imaging and Analysis
- Trauma Management and Diagnosis
- Medical Coding and Health Information
- Autopsy Techniques and Outcomes
- Artificial Intelligence in Healthcare
- Total Knee Arthroplasty Outcomes
- Pelvic and Acetabular Injuries
- Venous Thromboembolism Diagnosis and Management
- Imbalanced Data Classification Techniques
- Medical and Biological Sciences
OLVG
2020-2023
Amsterdam UMC Location University of Amsterdam
2011-2020
University of Amsterdam
2014-2019
Clinical Orthopaedics and Related Research
2019
Health & Safety in Sports
2017
Academic Center for Evidence-Based Sports Medicine
2017
Background: There is no consensus on the optimum imaging method to use confirm diagnosis of true scaphoid fractures among patients with suspected fractures. This study tested null hypothesis that computed tomography (CT) and magnetic resonance (MRI) have same diagnostic performance characteristics for Methods: Thirty-four consecutive a fracture (tenderness normal radiographic findings after fall outstretched hand) underwent CT MRI within ten days wrist injury. The reference standard was...
Convolutional neural networks (CNNs) are increasingly being developed for automated fracture detection in orthopaedic trauma surgery. Studies to date, however, limited providing classification based on the entire image-and only produce heatmaps approximate localization instead of delineating exact morphology. Therefore, we aimed answer (1) what is performance a CNN that detects, classifies, localizes, and segments an ankle fracture, (2) would this be externally valid?The training set...
Abstract Purpose Distal radius fractures (DRFs) are often initially assessed by junior doctors under time constraints, with limited supervision, risking significant consequences if missed. Convolutional Neural Networks (CNNs) can aid in diagnosing fractures. This study aims to internally and externally validate an open source algorithm for the detection localization of DRFs. Methods Patients from a level 1 trauma center Adelaide, Australia that presented between 2016 2020 wrist were...
The aim of this study was to develop and validate an easy use clinical decision rule, applicable in the ED that limits number unnecessary cast immobilizations diagnostic follow-up suspected scaphoid injury, without increasing risk missing fractures.A prospective multicenter conducted consisted three components: (1) derivation a prediction model for detecting fractures adult patients following wrist trauma; (2) internal validation model; (3) design rule. predictors used were: sex, age,...
Abstract Objective When correcting for the “class imbalance” problem in medical data, effects of resampling applied on classifier algorithms remain unclear. We examined effect performance over several combinations classifiers and ratios. Materials Methods Multiple classification were trained 7 resampled datasets: no correction, random undersampling, 4 ratios Synthetic Minority Oversampling Technique (SMOTE), oversampling with Adaptive algorithm (ADASYN). Performance was evaluated Area Under...
The purpose of this study was to identify the most reliable classification system for clinical outcome studies categorize post-traumatic-fracture-osteoarthritis.A total 118 orthopaedic surgeons and residents-gathered in Ankle Platform Study Collaborative Science Variation Group-evaluated 128 anteroposterior lateral radiographs patients after a bi- or trimalleolar ankle fracture on Web-based platform order rate post-traumatic osteoarthritis according systems coined by (1) van Dijk, (2)...
Six week follow-up radiographs are a common reference standard for the diagnosis of suspected scaphoid fractures. The main purpose this study was to evaluate interobserver reliability and diagnostic performance characteristics 6-weeks detection In addition, two online techniques evaluating were compared. A total 81 orthopedic surgeons affiliated with Science Variation Group assessed initial 6-week scaphoid-specific consecutive series 34 patients They randomized in groups evaluation, one used...
Definitive diagnosis of occult scaphoid fractures remains difficult. We tested the null hypothesis that, for true among suspected fractures, computed tomography (CT) reformations along long axis have same accuracy as made relative to anatomical planes wrist.In a prospective trial, 34 patients with fracture underwent CT scanning within 10 days after trauma. (CT-scaphoid) and wrist (CT-wrist) were made. used radiographs obtained 6 weeks injury reference standard fracture. A blinded panel...
Evaluation of the diagnostic performance characteristics radiographic tests for diagnosing a true fracture among suspected scaphoid fractures is hindered by lack consensus reference standard. Latent class analysis statistical method that takes advantage unobserved, or latent, classes in data can be used to determine when there no (gold)
Fifth metatarsal (MT-V) stress fractures often exhibit delayed union and are high-risk for non-union. Surgical treatment, currently considered as the gold standard, does not give optimal results, with a mean time to fracture of 12-18 weeks. In recent studies, use bone marrow cells has been introduced accelerate healing problems. The aim this randomized trial is determine if operative treatment MT-V concentrated blood aspirate (cB + cBMA) more effective than surgery alone. We hypothesize that...
Objective: Does the use of staples or sutures for wound closure have a lower surgical site infection rate in patients receiving primary total hip arthroplasty (THA)? Design: Prospective, randomised controlled multicentre trial. Methods: 535 undergoing THA were included and into 2 groups: 268 wounds closed with staples, 267 sutures. Primary outcome was (SSI). Secondary outcomes prosthetic joint (PJI), other complications (dehiscence, necrosis prolonged drainage) duration admittance. Follow-up...
IntroductionThe importance of routine follow-up several relatively simple stable injuries (SSIs) is questionable. Multiple studies show that direct discharge (DD) patients with SSIs from the Emergency Department results in patient outcomes and experiences comparable to 'standard care' outpatient follow-up. The purpose this study was evaluate which extent DD has been adopted amongst trauma orthopedic surgeons internationally, assess variation management these common injuries.MethodsAn online...
We tested whether a mechanical device (such as Hipsecure) to pinpoint the anterior pelvic plane (APP) guide can improve acetabular cup placement. To assess accuracy we asked: (1) is APP an effective position placement within acceptable ° of divergence from optimal 40° inclination and 15° anteversion; (2) could increase number placements Lewinnek's safe zone (i.e. 30° 50°; anteversion 5° 25°)?16 cadaveric specimens were used 3D surgical success using along APP. Hipsecure implant cups at...