Kai Sprengel

Kai Sprengel
University of Zurich | UZH · Department of Trauma

PD Dr. med.

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110
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661
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Publications

Publications (110)
Article
Cobalt intoxication is a rare complication of joint arthroplasty with a metal-on-metal prothesis or metal implants after broken ceramic implants. Patients with metal components should be monitored closely for complications. The awareness for the wide range of clinical pictures of this cobalt intoxication should be increased. We here describe the cl...
Article
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Introduction To improve the quality of criteria for trauma-team-activation it is necessary to identify patients who benefited from the treatment by a trauma team. Therefore, we evaluated a post hoc criteria catalogue for trauma-team-activation which was developed in a consensus process by an expert group and published recently. The objective was to...
Article
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Introduction The Revised Injury Severity Classification II (RISC II) score represents a data-derived score that aims to predict mortality in severely injured patients. The aim of this study was to assess the discrimination and calibration of RISC II in secondary transferred polytrauma patients. Methods This study was performed on the multicentre d...
Article
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Introduction:. Pelvic binders (PB) have become an established first–line treatment for on scene use in suspected pelvic ring injuries. A sustained incidence of incorrect placements was reported, usually above the trochanteric region. We examined if malplacement is associated with worse clinical parameters related to resuscitation. Methods:. Retrosp...
Article
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Introduction Traditionally, thoracolumbar split and burst-split fractures are treated with combined antero-posterior bi-segmental fusion procedures. Especially in the lower lumbar spine, such interventions are invasive and are associated with increased risk of neurological and vascular complications. This retrospective study aims to determine wheth...
Article
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Introduction The burden of MDRO in health systems is a global issue, and a growing problem. We conducted a European multicenter cohort study to assess the incidence, impact and risk factors for multidrug-resistant organisms in patients with major trauma. We conducted this study because the predictive factors and effects of MDRO in severely injured...
Article
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Objectives Osteoporotic fractures of the pelvis (OFP) are an increasing issue in orthopedics. Current classification systems (CS) are mostly CT-based and complex and offer only moderate to substantial inter-rater reliability (interRR) and intra-rater reliability (intraRR). MRI is thus gaining importance as a complement. This study aimed to develop...
Preprint
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Introduction: Cervical ligamentous injuries in patients with ankylosing spondylitis (AS) may be difficult to detect, even with the utilization of computed tomography (CT) scans. The purpose of this study was to investigate the influence AS has on various radiologic parameters used to detect traumatic and degenerative pathologies of the cervical spi...
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Background: Osteoporotic vertebral fractures (OVFs) have become increasingly common, and previous nonrandomized and randomized controlled trials (RCTs) have compared the effects of cement augmentation versus nonoperative management on the clinical outcome. This meta-analysis focuses on RCTs and the calculated differences between cement augmentatio...
Article
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There has been an ongoing discussion as to which interventions should be carried out by an “organ specialist” (for example, a thoracic or visceral surgeon) or by a trauma surgeon with appropriate general surgical training in polytrauma patients. However, there are only limited data about which exact emergency interventions are immediately carried o...
Article
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Introduction Increasing sub-specialization has reduced the number of general surgeons involved in the care of trauma patients in German-speaking countries (Germany, Austria and Switzerland) over the past decades. Thus, the aim of this study was to assess, to what extent level 1 trauma centers are still prepared to provide immediate emergency surger...
Article
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PurposeSwiss and German (pre-)hospital systems, distribution and organization of trauma centres differ from each other. It is unclear if outcome in trauma patients differs as well. Therefore, this study aims to determine differences in characteristics, therapy and outcome of trauma patients between both German-speaking countries.Methods The TraumaR...
Article
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Purpose The number of severely injured patients exceeding the age of 60 has shown a steep increase within the last decades. These patients present with numerous co-morbidities, polypharmacy, and increased frailty requiring an adjusted treatment approach. In this study, we establish an overview of changes we observed in demographics of older severe...
Article
Background Carbon-reinforced PEEK (C-FRP) implants are non-magnetic and have increasingly been used for the fixation of spinal instabilities. Purpose To compare the effect of different metal artifact reduction (MAR) techniques in magnetic resonance imaging (MRI) on titanium and C-FRP spinal implants. Material and Methods Rod-pedicle screw constru...
Article
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Schwerverletzte Patientinnen und Patienten werden in der Schweiz im Rahmen der interkantonalen Vereinbarung der hochspezialisierten Medizin (IVHSM) behandelt. Das Swiss Trauma Board und die dort vereinten zwölf Schweizer Traumazentren arbeiten unter anderem mit dem deutschen Traumaregister zusammen, um eine bestmögliche Behandlung der Verletzten zu...
Article
Case: A 36-year-old patient with chronic alcohol abuse and previous medical history of total hip arthroplasty suffered a fracture of the femoral shaft. During osteosynthesis, a milky fluid similar to purulent discharge emerged at multiple locations. Immediate Gram stains were negative, and the surgery was performed as planned. Laboratory tests sho...
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Background The Abbreviated Injury Scale (AIS) and Injury Severity Score (ISS) are widely used to assess trauma patients. In this study, the interobserver variability of the injury severity assessment for severely injured patients was analyzed based on different injured anatomical regions, and the various demographic backgrounds of the observers. M...
Article
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Background and objectives: The burden of geriatric trauma patients continues to rise in Western society. Injury patterns and outcomes differ from those seen in younger adults. Getting a better understanding of these differences helps medical staff to provide a better care for the elderly. The aim of this study was to determine epidemiological diffe...
Article
Acute Traumatic Central Cord Syndrome: Etiology, Pathophysiology, Clinical Manifestation, and Treatment Abstract. The acute traumatic central cord syndrome (ATCCS) represents an injury to the spinal cord with disproportionately greater motor impairment of the upper than the lower extremities, with bladder dysfunction and with varying degrees of sen...
Article
Zusammenfassung. Das akute traumatische Central-Cord-Syndrom (ATCCS) stellt eine Rückenmarkverletzung mit unverhältnismässig stärkerer motorischer Beeinträchtigung der oberen als der unteren Extremitäten, Blasenfunktionsstörung und unterschiedlich starkem sensorischem Verlust unterhalb des Niveaus der Läsion dar. Der Mechanismus des ATCCS ist am hä...
Article
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Background Simultaneous trauma admissions expose medical professionals to increased workload. The impact of simultaneous trauma admissions on hospital allocation, therapy, and outcome is currently unclear. We hypothesized that multiple admission-scenarios impact the diagnostic pathway and outcome. Methods The TraumaRegister DGU® was utilized. Pati...
Article
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Feasible and predictive scoring systems for severely injured geriatric patients are lacking. Therefore, the aim of this study was to develop a scoring system for the prediction of in-hospital mortality in severely injured geriatric trauma patients. The TraumaRegister DGU® (TR-DGU) was utilized. European geriatric patients (≥65 years) admitted betwe...
Article
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Background: CT artifacts induced by orthopedic implants can limit image quality and diagnostic yield. As a number of different strategies to reduce artifact extent exist, the aim of this study was to systematically compare ex vivo the impact of different CT metal artifact reduction (MAR) strategies on spine implants made of either standard titaniu...
Article
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The pancreas is at risk of damage as a consequence of thoracolumbar spine injury. However, there are no studies providing prevalence data to support this assumption. Data from European hospitals documented in the TraumaRegister DGU® (TR-DGU) between 2008–2017 were analyzed to estimate the prevalence of this correlation and to determine the impact o...
Article
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Purpose Pre-hospital trauma life support (PHTLS®) includes a standardized algorithm for pre-hospital care. Implementation of PHTLS® led to improved outcome in less developed medical trauma systems. We aimed to determine the impact of PHTLS® on quality of pre-hospital care in a European metropolitan area. We hypothesized that the introduction of PHT...
Article
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The purpose of this study was to assess anticoagulant medication as an independent factor influencing the occurrence of a severe traumatic brain injury in geriatric patients. Data were collected from the TraumaRegister DGU® between January 2015 and December 2018. We included patients with an age of ≥65 years with a blunt TBI; an AISHead ≥2 but no o...
Article
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Geriatric trauma is expected to increase due to the lifestyle and activity of the aging population and will be among the major future challenges in health care. Therefore, the aim of this study was to investigate differences between polytraumatized geriatric and non-geriatric patients regarding mortality, length-of-stay and complications with a mat...
Preprint
Full-text available
Introduction In order to improve the quality of criteria for trauma-team-activation it is necessary to identify patients who benefited from the treatment by a trauma team. Therefore, we evaluated a post hoc criteria catalogue for trauma-team-activation which was developed in a consensus process by an expert group and published recently. The objecti...
Preprint
Full-text available
Background: The pancreas is an organ which is at risk of damage as a consequence of thoracolumbar spine injury. However, to our knowledge, no studies have provided any prevalence data to support this assumption. Therefore, the coincidence of pancreatic trauma in patients with spine injury is still unknown. Data from the TraumaRegister DGU® (TR-DGU)...
Preprint
Full-text available
Introduction In order to improve the quality of criteria for trauma-team-activation it is necessary to identify patients who benefited from the treatment by a trauma team. Therefore, we evaluated a post hoc criteria catalogue for trauma-team-activation which was developed in a consensus process by an expert group and published recently. The objecti...
Article
Zusammenfassung. Trotz abnehmender Inzidenz der Tuberkulose (TBC) über die vergangenen Jahrzehnte in der Schweiz ist die Häufigkeit der jährlich neu diagnostizierten tuberkulösen Spondylitis stabil. Sie tritt am häufigsten bei sehr alten, immun-kompromittierten und/oder aus TBC-Endemiegebieten zugezogenen Personen auf. Sie ist eine chronische Manif...
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Introduction Neurogenic lower urinary tract dysfunction (NLUTD), including neurogenic detrusor overactivity (NDO) and detrusor sphincter dyssynergia, is one of the most frequent and devastating sequelae of spinal cord injury (SCI), as it can lead to urinary incontinence and secondary damage such as renal failure. Transcutaneous tibial nerve stimula...
Article
Background Minimally invasive stabilization of thoracolumbar osteoporotic fractures (OF) in neurologically intact patients is well established. Various posterior and anterior surgical techniques are available. The OF classification and OF score are helpful for defining the indications and choice of operative technique.Objective This article gives a...
Article
In isolated high energy pelvic ring injuries, early surgical and nonsurgical fixation belongs to the rescue tools required for rapid recovery. With the increasing use of pelvic binders on scene, these patients frequently arrive in a better condition at the level I trauma center than without any measures of immobilisation. We describe our surgical t...
Preprint
Full-text available
Background The aging population has a tremendous impact on health care. Geriatric trauma is expected to increase due to the lifestyle and activity of the aging population and will be one of the major future challenges in health care. Therefore, the aim of this study was to investigate differences between polytraumatized geriatric and non-geriatric...
Article
Full-text available
Introduction Early accurate assessment of the clinical status of severely injured patients is crucial for guiding the surgical treatment strategy. Several scales are available to differentiate between risk categories. They vary between expert recommendations and scores developed on the basis of patient data (level II). We compared four established...
Article
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Background: The demographic changes towards ageing of the populations in developed countries impose a challenge to trauma centres, as geriatric trauma patients require specific diagnostic and therapeutic procedures. This study investigated whether the integration of new standard operating procedures (SOPs) for the resuscitation room (ER) has an im...
Conference Paper
Introduction: Traditionally, thoracolumbar split and burst-split fractures are treated with combined antero-posterior bi-segmental fusion procedures. This retrospective study aims to determine whether percutaneous stent-kyphoplasty is a viable treatment option for these injuries in terms of kyphotic angle correction and patient safety. Methods: Fro...
Article
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Background: A factor-based coagulation management following major trauma is recommended as standard of care by the European Trauma Treatment Guidelines. However, concerns about the thromboembolic risk of this approach are still prevalent. Our study therefore aims to assess if such a haemostatic management is associated with an increased risk for th...
Article
Background Odontoid fractures in geriatric patients represent an entity of increasing incidence with a high rate of morbidity and mortality. The optimal diagnostic and therapeutic management is being controversially discussed in the literature. Methods In a consensus process and based on the current literature, the members of the working groups “Os...
Article
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Background The first and largest peak of trauma mortality is encountered on the trauma site. The aim of this study was to determine whether these trauma-related deaths are preventable. We performed a systematic literature review with a focus on pre-hospital preventable deaths in severely injured patients and their causes. Methods Studies published...
Article
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Background The indications for sacroiliac screw (SI) removal have been under debate. Data on complication rates of SI screw removal is missing in the current literature. The objective of this study was to compare the rate of intra- and perioperative problems and complications during SI screw removal to those with SI screw fixation. Methods A retro...
Article
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Purpose: To find ways to reduce the rate of over-triage without drastically increasing the rate of under-triage, we applied a current guideline and identified relevant pre-hospital triage predictors that indicate the need for immediate evaluation and treatment of severely injured patients in the resuscitation area. Methods: Data for adult trauma...
Article
This matched case-control study compared the rate of symptomatic adjacent-level vertebral compression fractures (VCF) within 1 year in patients operatively treated with kyphoplasty to a control group of non-operatively treated VCFs. The adjacent-level fracture rate did not show a significant difference between groups. Purpose: To compare the rate...
Article
Objective: To quantify intrapelvic surface symmetry in reference to a preshaped suprapectineal acetabular implant. Methods: In this cross-sectional study, an anatomically preshaped acetabular fracture implant was fitted on 3D surface models of 516 pelvises from a preexisting bone database using a software tool for automated implant fitting (SOMA...
Article
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Introduction: Combined burn trauma is rather uncommon and frequently difficult to manage. Historically, combined burn trauma contributed to high mortality rates in severely injured patients. The purpose of this study was to determine the incidence, mechanisms and impact of non-thermal injuries in patients with severe burns. Methods: The charts of...
Article
INTRODUCTION Severely injured patients are supposed to be admitted to hospital via the trauma room. Appropriate criteria are contained in the S3 guidelines on the treatment of patients with severe/multiple injuries (S3-GL); however, some of these criteria require scarce hospital resources while the patients then often clinically present as uninjure...
Article
INTRODUCTION Severely injured patients are supposed to be admitted to hospital via the trauma room. Appropriate criteria are contained in the S3 guidelines on the treatment of patients with severe/multiple injuries (S3-GL); however, some of these criteria require scarce hospital resources while the patients then often clinically present as uninjure...
Article
Introduction Subcutaneous internal fixation (InFix) has become a valid alternative for anterior fixation of pelvic ring injuries. Complications associated with this technique are lateral femoral cutaneous nerve (LFCN) irritation and anterior thigh pain due to prominent implants. The aim of this study was to identify a configuration of the InFix tha...
Article
Full-text available
Background Several new definitions for categorizing the severely injured as the Berlin Definition have been developed. Here, severely injured patients are selected by additive physiological parameters and by the general Abbreviated Injury Scale (AIS)-based assessment. However, all definitions should conform to an AIS severity coding applied by an e...
Article
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Background: The development of a Systemic Inflammatory Response Syndrome (SIRS) has been discussed to be related to the trauma load. Trauma, especially the multiple injured patient suffers blood loss in a various extent. The outcome of such patients is also linked with the need for transfusions and SIRS. Therefore, the association between the initi...
Article
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Background Minimal invasive screw fixation is common for treating posterior pelvic ring pathologies, but lack of bone quality may cause anchorage problems. The aim of this study was to report in detail a new technique combining iliosacral screw fixation with in-screw cement augmentation (ISFICA). Description of technique The patient was put under g...