Publications by authors named "Moritz Deml"

Article Synopsis
  • Percutaneous screw fixation is a common treatment for posterior pelvic ring injuries, with transiliac-transsacral screws showing better biomechanical strength than bilateral sacroiliac screws, especially for less displaced bilateral sacral fractures.
  • An anatomical study on human cadaveric pelves identified a safe zone for screw placement in relation to the S1 region, categorizing most pelves as suitable for this technique while highlighting some as high-risk.
  • The research suggests using lateral fluoroscopic images to accurately identify safe entry points for screw placement at the S1 level, emphasizing the need for more studies with CT imaging to further validate these results.
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Introduction: Traumatic thoracolumbar burst fractures are the most common spinal injuries and the proper treatment is controversial. In central Europe in particular, these fractures are often treated with minimally invasive anterior-posterior reduction and fusion, whereas a conservative approach is preferred in the USA. Independent of the treatment strategy, no data exists regarding the outcome related to return to activity level/sport.

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Introduction: Autism spectrum disorder (ASD) is characterized by deficits in social communication, repetitive behaviors, and can be accompanied by a spectrum of psychiatric symptoms, such as schizophrenia and catatonia. Rarely, these symptoms, if left untreated, can result in spinal deformities.

Research Question And Case Description: This case report details the treatment of a 16-year-old male ASD patient with catatonic schizophrenia and mutism, presenting with neck pain, left-rotated torticollis, and fever.

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Musculoskeletal (MSK) models offer great potential for predicting the muscle forces required to inform more detailed simulations of vertebral endplate loading in adolescent idiopathic scoliosis (AIS). In this work, simulations based on static optimization were compared with in vivo measurements in two AIS patients to determine whether computational approaches alone are sufficient for accurate prediction of paraspinal muscle activity during functional activities. We used biplanar radiographs and marker-based motion capture, ground reaction force, and electromyography (EMG) data from two patients with mild and moderate thoracolumbar AIS (Cobb angles: 21° and 45°, respectively) during standing while holding two weights in front (reference position), walking, running, and object lifting.

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Purpose: Assessing the diagnostic performance and supplementary value of whole-body computed tomography scout view (SV) images in the detection of thoracolumbar spine injuries in early resuscitation phase and identifying frequent image quality confounders.

Methods: In this retrospective database analysis at a tertiary emergency center, three blinded senior experts independently assessed SV to detect thoracolumbar spine injuries. The findings were categorized according to the AO Spine classification system.

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Introduction: Atlas ring fractures, which account for 1.3% of all spinal fractures, are predominantly managed conservatively. However, in certain cases, surgical treatment may be necessary depending on the type of fracture, degree of comminution, fracture location, and associated ligamentous injuries.

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For revision hip arthroplasty, both cemented and cementless techniques have been described for implantation of modular and non-modular implants. Although many articles have been published on non-modular prosthesis, there is a dearth of data on cementless, modular revision arthroplasty in young patients. This study aims to analyze the complication rate of modular tapered stems in young patients below 65 years of age as compared to elderly patients older than 85 years old, in order to predict the complication rate.

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Study Design: A single-center validation study.

Objective: To translate and cross-culturally adapt the AO Spine PROST (Patient Reported Outcome Spine Trauma) into German, and to test its psychometric properties among German-speaking Swiss spine trauma patients.

Methods: Patients were recruited from a level-1 Swiss trauma center.

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Purpose: The aim of this study was to assess safety and efficacy of vertebral body stenting (VBS) by analyzing (1) radiographic outcome, (2) clinical outcome, and (3) perioperative complications in patients with vertebral compression fractures treated with VBS at minimum 6-month follow-up.

Methods: In this retrospective cohort study, 78 patients (61 ± 14 [21-90] years; 67% female) who have received a vertebral body stent due to a traumatic, osteoporotic or metastatic thoracolumbar compression fracture at our hospital between 2012 and 2020 were included. Median follow-up was 0.

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Study Design: This study constitutes a systematic review of the literature.

Objective: The aim of this study was to identify and present all available studies that report on the costs of osteobiologics used in anterior cervical discectomy and fusion (ACDF).

Methods: The literature was systematically reviewed to identify studies with specific inclusion criteria: (1) randomized controlled trials and observational studies, (2) in adult patients, (3) with herniated disc(s) or degenerative cervical spine disease, (4) reporting on either direct or indirect costs of using specific osteobiologics in an ACDF operation.

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Background: Bone marrow mesenchymal stromal cells (BMSCs) are promising for therapeutic use in cartilage repair, because of their capacity to differentiate into chondrocytes. Often, in vitro differentiation protocols employ the use of high amount of glucose, which does not reflect cartilage physiology. For this reason, we investigated how different concentrations of glucose can affect the chondrogenic differentiation of BMSCs in cell culture pellets.

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•Gender trends in authorship showed an increase in female authors from 1976 to 2020.•In 2020, Europe had the highest and Asia the lowest proportion of female authors.•The Netherlands had the highest proportion of women and Japan the lowest.

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Background: The current standard of care for intervertebral disc (IVD) herniation, surgical discectomy, does not repair annulus fibrosus (AF) defects, which is partly due to the lack of effective methods to do so and is why new repair strategies are widely investigated and tested preclinically. There is a need to develop a standardized IVD injury model in large animals to enable comparison and interpretation across preclinical study results. The purpose of this study was to compare IVD injury models in sheep to determine which annulus fibrosus (AF) defect type combined with partial nucleus pulposus (NP) removal would better mimic degenerative human spinal pathologies.

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Study Design: Bibliometric review.

Objective: This study aims to understand the worldwide research productivity trends in spine-related research over the past five decades.

Summary Of Background Data: Research productivity in the field of spine surgery has increased tremendously over the past decades.

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Study Design: This is a retrospective cohort study.

Objectives: This study aims to determine the proportional incidence, clinical characteristics, treatment patterns with complications and changes in treatment of vertebral fractures over 10 years at a Swiss university hospital.

Methods: A retrospective cohort study was performed.

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Background And Purpose: To assess the feasibility of postoperative stereotactic body radiation therapy (SBRT) for patients with hybrid implants consisting of carbon fiber reinforced polyetheretherketone and titanium (CFP-T) using CyberKnife.

Materials And Methods: All essential steps within a radiation therapy (RT) workflow were evaluated. First, the contouring process of target volumes and organs at risk (OAR) was done for patients with CFP-T implants.

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Introduction: Summer alpine sports, including mountain biking, hiking and airborne pursuits, have experienced a recent surge in popularity. Accordingly, trauma associated with these activities has increased. There is a scarcity of literature exploring clinical aspects surrounding injuries.

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Background: Surgical treatment for erosive pyogenic spondylodiscitis of the lumbar spine is challenging as, following debridement of the intervertebral and bony abscess, a large and irregular defect is created. Sufficient defect reconstruction with conventional implants using a posterior approach is often impossible. Therefore, we developed the "Cement-PLIF", a single-stage posterior lumbar procedure, combining posterior lumbar interbody fusion (PLIF) with defect-filling using antibiotic-loaded polymethylmethacrylate (PMMA).

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An atypical course of the vertebral artery can be medically relevant in displaced Hangman fractures, especially if the artery course runs within the fracture gap of the C2 isthmus. During surgical reduction, the artery can be occluded inside the fracture, potentially leading to ischemic conditions of the brain. The aim of this study was to report two cases according to the CARE (case reporting) guidelines, in which intraoperative color-coded duplex-ultrasound was performed to secure safe surgical reduction of hangman fractures in two patients with an atypical course of the vertebral artery.

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Background: The economic burden of vertebral compression fractures (VCF) caused by osteoporosis was estimated at 37 billion euros in the European Union in 2010. In addition, the incidence is expected to increase by 25% in 2025. The recommendations for the therapy of VCFs (conservative treatment versus cement augmentation procedures) are controversial, what could be partly explained by the lack of standardized outcomes for measuring the success of both treatments.

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Introduction: Spinopelvic dissociation is a rare type of injury which occurs in approximately 2.9% of pelvic disruptions and correlates with high-energy trauma.The purpose of this study was to systematically evaluate the incidence, demographics, treatment, clinical outcome, and complication rate associated with these injuries.

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Background: Airborne sports have become more popular in recent years. The number of accidents has increased linearly as athletes take increasingly greater risks to experience the adventurous spirit of this kind of sports.

Aim: To investigate the variety of injuries in airborne sport accidents, as well as which acute treatment these patients receive, both before and after admission to a level-one-trauma center.

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: Rhabdomyolysis is a potentially fatal condition that can be triggered by a variety of inciting events, including excessive muscular exertion.The purpose of this study was to investigate the causes of creatine kinase elevation (CK≥1000U/L) to determine what percentage result from exRML, the etiology, and kinetics of CK levels, as well as the complications of exRML and comorbidities that may predispose an individual to this condition.: We performed a cross-sectional analysis of the emergency department database for patients with CK≥1000U/L between 2012 and 2017.

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