Publications by authors named "Wijffels M"

Introduction: Costal margin rupture (CMR) injuries in association with intercostal hernia (IH) are rare and symptomatic and provide a significant surgical challenge. Surgical failure rates up to 60% are reported, and optimal techniques are unclear. We have characterized these injuries and describe the evolution of our surgical management techniques.

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Introduction: High-density (HD) substrate mapping may increase success of catheter ablation targeting ventricular tachycardia (VT). However, despite its use, recurrent VT is not uncommon. We aim to investigate factors that are associated with outcomes after HD mapping-guided substrate ablation procedures for VT in patients with ischemic cardiomyopathy.

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  • - This study aimed to create a convolutional neural network (CNN) to detect and classify fractures, focusing on specific characteristics like greater tuberosity displacement and neck-shaft angle, using plain X-rays.
  • - The CNN was trained with over 1,700 X-rays from Australia and validated with data from the Netherlands, comparing results with CT scans evaluated by experts.
  • - The CNN demonstrated a high detection accuracy of 94% for fractures, but less effectiveness in identifying specific fracture characteristics, particularly showing lower performance for greater tuberosity displacement and neck-shaft angles.
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  • Patients with pulmonary contusion (PC) face a higher risk of complications and respiratory issues, and CT scans, while sensitive, may not fully capture the extent of PC immediately after injury.
  • This systematic review aimed to identify different classification systems for PC and examine their link to in-hospital outcomes across various studies, with a focus on CT-based assessments following blunt thoracic trauma.
  • The findings revealed that the most effective classification method involves calculating the percentage of contused lung volume, with higher volumes (over 18-24%) correlating with worse patient outcomes.
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  • The study evaluated the occurrence and factors related to reoperations after repairing distal radius nonunion in patients at a multicenter academic institution from 2005 to 2021.
  • A total of 33 patients (13 males, median age 56) were reviewed, with an average follow-up period of nearly 5 years.
  • Results showed that about 24% of patients required unplanned reoperations, mainly due to infection, persistent nonunion, or hardware issues, with complications occurring in 27% of cases.
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Introduction: This study compares computed tomography (CT) with plain radiography in its ability to assess distal radius fracture (DRF) malalignment after closed reduction and cast immobilization.

Methods: Malalignment is defined as radiographic fracture alignment beyond threshold values according to the Dutch guideline encompassing angulation, inclination, positive ulnar variance and intra-articular step-off or gap. After identifying 96 patients with correct alignment on initial post-reduction radiographs, we re-assessed alignment on post-reduction CT scans.

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Purpose: Early and accurate assessment of distal radius fractures (DRFs) is crucial for optimal prognosis. Identifying fractures likely to lose threshold alignment (instability) in a cast is vital for treatment decisions, yet prediction tools' accuracy and reliability remain challenging. Artificial intelligence (AI), particularly Convolutional Neural Networks (CNNs), can evaluate radiographic images with high performance.

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  • Surgical stabilization of rib fractures (SSRF) in patients on pre-injury antithrombotic therapy was analyzed to determine its impact on surgical outcomes and timing.
  • A study of 218 patients revealed that while those on antithrombotics were older and had different injury severity scores, there were no significant delays in the timing of SSRF or differences in operative time between those on antithrombotics and those not.
  • Although patients on antithrombotics had fewer ICU-free days, their overall surgical outcomes regarding complications and recovery times didn't show significant differences.
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Aims: It is not clear which type of casting provides the best initial treatment in adults with a distal radial fracture. Given that between 32% and 64% of adequately reduced fractures redisplace during immobilization in a cast, preventing redisplacement and a disabling malunion or secondary surgery is an aim of treatment. In this study, we investigated whether circumferential casting leads to fewer the redisplacement of fewer fractures and better one-year outcomes compared with plaster splinting.

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Background: This research sought to analyze a cohort of patients with extensor pollicis longus (EPL) ruptures after volar locked plating of a distal radius fracture (DRF) to characterize the incidence of ruptures that are unlikely to be related to dorsal screw prominence.

Methods: This is a retrospective, observational, descriptive cohort study of adults with operative fixation of a closed DRF and an EPL rupture between 2002 and 2022. Eighteen patients with operative fixation using a volar plate of a closed DRF had an EPL rupture.

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Purpose: This retrospective study aimed to validate the ACS NSQIP Surgical Risk Calculator (SCR) to predict 30-day postoperative outcomes in patients with one of the following subacute orthopedic trauma diagnoses; multiple rib fractures, pelvic ring/acetabular fracture, or unilateral femoral fracture.

Methods: Data of patients with these diagnoses treated between January 1, 2015 and September 19, 2020 were extracted from the patients' medical files. Diagnostic performance, discrimination, calibration, and accuracy of the ACS NSQIP SRC to predict specific outcomes developing within 30 days after surgery was determined.

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Background: Chest pain following a thoracotomy for esophageal cancer is frequently reported but poorly understood. This study aimed to (1) determine the prevalence of thoracotomy-related thoracic fractures on postoperative imaging and (2) compare complications, long-term pain, and quality of life in patients with versus without these fractures.

Methods: This retrospective cohort study enrolled patients with esophageal cancer who underwent a thoracotomy between 2010 and 2020 with pre- and postoperative CTs (<1 and/or >6 months).

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Background: Rib fracture nonunion is a probable cause of chronic pain following chest trauma, although its prevalence remains unknown. The aims of this study were to determine rib fracture nonunion prevalence following nonoperative management and to determine if presence of nonunion was associated with the number of rib fractures, or the rib fracture classification of anatomical location, type, and displacement.

Methods: This multicenter prospective cohort study included trauma patients with three or more fractured ribs but without a flail segment, who participated in the nonoperative management group of the FixCon trial between January 2019 and June 2022.

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Article Synopsis
  • The study explores the use of machine-learning prediction models in orthopaedic trauma, aiming to provide an overview, review reporting practices using the TRIPOD statement, and assess bias with the PROBAST tool.
  • Out of 3,252 studies screened, 45 ML models were identified, with most focusing on hip fractures, and common outcomes being mortality and length of hospital stay.
  • Findings reveal that while many models exist, they often have poor transparency in reporting (62% completeness) and a high risk of bias, primarily due to small sample sizes and inadequate analysis methods.
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Purpose: This study aims to ascertain the prevalence of rib fractures and other injuries resulting from CPR and to compare manual with mechanically assisted CPR. An additional aim was to summarize the literature on surgical treatment for rib fractures following CPR.

Design: Systematic review and meta-analysis.

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Background: Over the last two decades, the acute management of rib fractures has changed significantly. In 2021, the Chest Wall injury Society (CWIS) began recognizing centers that epitomize their mission as CWIS Collaborative Centers. The primary aim of this study was to determine the resources, surgical expertise, access to care, and institutional support that are present among centers.

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Background: The tissue response viewer (TRV) is a novel marker for ablation lesion quality that aims to classify lesions into transmural or nontransmural lesions (high or low dielectric response, HDR or LDR) using dielectric-based tissue assessment. The objective of this study was to gain insight in the TRV by relating its outcomes to conventional ablation parameters.

Methods: Patients that had repeat ablation for atrial fibrillation with a dielectric imaging-based mapping system were enrolled.

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Background: High-density (HD) mapping is increasingly used to characterize arrhythmic substrate for ablation of atypical atrial flutters (AAFl). However, results on clinical outcomes and factors that are associated with arrhythmia recurrence are scarce.

Methods: Single-center, prospective, observational cohort study that enrolled patients with catheter ablation for AAFl using a HD mapping system and a grid-shaped mapping catheter.

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Aims: The aim of this study was to investigate the association between fracture displacement and survivorship of the native hip joint without conversion to a total hip arthroplasty (THA), and to determine predictors for conversion to THA in patients treated nonoperatively for acetabular fractures.

Methods: A multicentre cross-sectional study was performed in 170 patients who were treated nonoperatively for an acetabular fracture in three level 1 trauma centres. Using the post-injury diagnostic CT scan, the maximum gap and step-off values in the weightbearing dome were digitally measured by two trauma surgeons.

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Introduction: The progression of pulmonary contusions remains poorly understood. This study aimed to measure the radiographic change in pulmonary contusions over time and evaluate the association of the radiographic change with clinical outcomes and surgical stabilization of rib fractures (SSRF).

Methods: This retrospective cohort study included adults admitted with three or more displaced rib fractures or flail segment on trauma CT and when a chest CT was repeated within one week after trauma.

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Article Synopsis
  • - The study explores the incidence and characteristics of surgical stabilization of rib fractures (SSRF) at various trauma centers, highlighting the CWIS initiative to identify exemplary centers for this treatment.
  • - An analysis of 26,084 patient cases revealed that 24% had rib fractures, with only 2% of all patients and 8% of those with rib fractures undergoing SSRF, emphasizing variations based on age and injury severity.
  • - The findings suggest that SSRF rates are higher in specific age groups, particularly those aged 50-69, indicating potential disparities in treatment across different age ranges that warrant further examination.
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  • The study compares the effectiveness of hybrid epicardial-endocardial ablation (HA) to standard endocardial catheter ablation (CA) for patients with persistent and longstanding persistent atrial fibrillation (PersAF/LSPAF), suggesting HA may offer better long-term results.
  • The CEASE-AF trial enrolled participants across nine European countries, focusing on those with symptomatic, drug-resistant atrial fibrillation and specific heart size measurements, making it a randomized controlled study.
  • Results showed that 71.6% of patients in the HA group achieved freedom from significant arrhythmias after 12 months, compared to only 39.2% in the CA group, indicating a substantial improvement in effectiveness with HA.
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Introduction: Over the past years, mapping and ablation techniques for the treatment of ventricular tachycardia (VT) have evolved rapidly. High Density (HD) substrate mapping is now routine and pre-procedural imaging is increasingly used. The additional value of these techniques for long-term VT-free survival is not clear.

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Rib fractures are common and serious injuries, which can negatively impact long-term quality of life. Here we present a woman in her early twenties who was referred to our trauma surgery outpatient clinic five years after a motor vehicle collision in which she sustained upper extremity injury and multiple displaced rib fractures. The rib fractures were initially managed non-operatively.

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Background: Surgical stabilization of rib fractures (SSRF) is associated with improved respiratory symptoms and shorter intensive care admission in patients with flail chest. For multiple rib fractures, the benefit of SSRF remains a topic of debate. This study investigated barriers and facilitators of healthcare professionals to SSRF as treatment for multiple traumatic rib fractures.

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