Tom Knauf

ORCID: 0000-0001-7881-5857
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About
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Research Areas
  • Hip and Femur Fractures
  • Pelvic and Acetabular Injuries
  • Cardiac, Anesthesia and Surgical Outcomes
  • Emergency and Acute Care Studies
  • Spinal Fractures and Fixation Techniques
  • Trauma and Emergency Care Studies
  • Bone Tissue Engineering Materials
  • Dental Implant Techniques and Outcomes
  • Spine and Intervertebral Disc Pathology
  • Bone health and osteoporosis research
  • Orthopaedic implants and arthroplasty
  • Periodontal Regeneration and Treatments
  • Bone fractures and treatments
  • Pregnancy-related medical research
  • COVID-19 and healthcare impacts
  • Cervical and Thoracic Myelopathy
  • Hip disorders and treatments
  • Sinusitis and nasal conditions
  • Oral and Maxillofacial Pathology
  • Bone and Joint Diseases
  • Musculoskeletal Disorders and Rehabilitation

Helios Kliniken
2024

Philipps University of Marburg
2017-2023

Universitätsklinikum Gießen und Marburg
2019-2023

IFU (Germany)
2023

Weatherford College
2022

Ethics and Public Policy Center
2022

Smith College
2019

Syracuse University
2019

University of Memphis
2019

Texas A&M University
2019

Background and Objectives: The increased use of direct oral anticoagulants (DOACs) results in an prevalence DOAC treatment hip fractures patients. However, the impact on perioperative management fracture patients is limited. In this study, we describe a population compare these with taking vitamin K antagonists (VKA) not anticoagulants. Materials Methods: This study retrospective analysis from Registry for Geriatric Trauma (ATR-DGU). data were collected prospectively proximal femur treated...

10.3390/medicina58030379 article EN cc-by Medicina 2022-03-04

Aim The importance of proximal femoral fractures is increasing due to demographic change. Despite appropriate care, these are associated with poor results. We still lagging behind, and require information on the long‐term functional outcome patients predictive factors involved. Methods Between 2009 2011, 402 aged >60 years hip were included in this prospective observational study. Patients assessed Barthel Index before fracture, at discharge, 6 months, 1 year 5 after surgery. In addition,...

10.1111/ggi.13723 article EN Geriatrics and gerontology international/Geriatrics & gerontology international 2019-07-01

Background and Objectives: Cemented hemi arthroplasty is a common effective procedure performed to treat femoral neck fractures in elderly patients. The bone cement implantation syndrome (BCIS) severe potentially fatal complication which can be associated with the of hip prosthesis. aim this study was investigate influence modified cementing technique on incidence BCIS. Material Methods: clinical data patients were treated cemented after introduction 3rd generation compared matched group who...

10.3390/medicina58111587 article EN cc-by Medicina 2022-11-03

Abstract Compared to the currently clinically available bone grafting materials for alveolar ridge augmentation, there is a great demand bioactive substitutes with higher resorbability, which enhance osteogenesis at same time. This has prompted development of silicon‐doped rapidly resorbable calcium alkali orthophosphate (Si‐CAOP) and β‐tricalcium phosphate (Si‐TCP). study evaluated effect these two particulate graft as compared used β‐TCP on formation osteogenic marker expression after 2...

10.1002/jbm.b.34153 article EN Journal of Biomedical Materials Research Part B Applied Biomaterials 2018-05-16

(1) Background: The desire to avoid autograft harvesting in implant dentistry has prompted an ever-increasing quest for bioceramic bone substitutes, which stimulate osteogenesis while resorbing a timely fashion. Consequently, highly bioactive silicon containing calcium alkali orthophosphate (Si-CAP) material was created, previously shown induce greater cell maturation and neo-formation than β-tricalcium phosphate (β-TCP) vivo as well vitro. Our study tested the hypothesis that enhanced...

10.3390/bioengineering10121408 article EN cc-by Bioengineering 2023-12-11

Background and Objectives: Fractures of the proximal femur are a life-changing life-threatening event for older people. Concomitant malnutrition has been described as an independent risk factor complications mortality. Therefore, we examined influence albumin body mass index (BMI) parameters nutritional state on outcome after geriatric hip fracture surgery. Materials Methods: Data were retrospectively collected from hospital information systems, all other obtained patient charts. We included...

10.3390/medicina58111610 article EN cc-by Medicina 2022-11-07

Patients suffering from complications during inpatient treatment after hip fracture surgery are associated with a worse mid-term outcome. While surgically treatable only delay the healing process, internal seem to worsen outcome in long run. All come significant increased costs hospital stay.Due demographic changes, importance of fractures is still increasing nowadays. Not surgical but also medical represent major challenge those patients. Nevertheless, few known about functional, medical,...

10.1007/s11657-020-00843-z article EN cc-by Archives of Osteoporosis 2020-11-06

Standard balloon kyphoplasty represents a well-established treatment option for osteoporotic vertebral compression fractures. Aim of the present study was to evaluate two different methods percutaneous augmentation (standard (BKP) versus Tektona® (TEK)) with respect height restoration. Four-teen bodies female cadavers were examined. Fractures created using standardized protocol. CT-scans taken before and after fracture, as well treatment. Afterwards groups randomly assigned in matched pair...

10.1186/s12891-020-03899-7 article EN cc-by BMC Musculoskeletal Disorders 2021-01-13

The German Society for Geriatrics recommends the "ISAR" questionnaire as a screening tool patients ≥70 geriatric in emergency rooms. Although ISAR-score is collected routinely "AltersTraumaRegister DGU®" (ATR-DGU), to date less known about predictive value of "ISAR"-score trauma patients.Currently, 84 clinics participate ATR-DGU. This evaluation limited subgroup proximal femur fractures from 2016-2018. Patients years, who underwent surgery hip fracture are included In this evaluation,...

10.2147/cia.s344689 article EN cc-by-nc Clinical Interventions in Aging 2022-03-01

While several studies report on accuracy rates of pedicle screws, risk factors associated with inaccurate screw positioning in patients thoracolumbar fractures are reported rarely. CT scan as a routine postoperative control is advocated by various authors, however its necessity remains unclear.Two hundred forty-five were included this retrospective study. Percutaneous dorsal instrumentation was most commonly performed (n = 201). Classification Zdichavsky et al. and Rao used to classify...

10.1186/s12891-021-04860-y article EN cc-by BMC Musculoskeletal Disorders 2021-11-26

Background and Objectives: Appropriate timing of surgery for periprosthetic femoral fractures (PFFs) in geriatric patients remains unclear. Data from a large international trauma register were analyzed to examine the outcome with PFF respect surgical stabilization. Materials Methods: The Registry Geriatric Trauma German Society (Deutsche Gesellschaft für Unfallchirurgie (DGU)) (ATR-DGU) was analyzed. Patients treated surgically included this analysis. As parameters, in-house mortality rate...

10.3390/medicina57060517 article EN cc-by Medicina 2021-05-21

Abstract Introduction Surgical treatment of supracondylar femoral fractures can be challenging. An additional wire cerclage is a suggested way to facilitate fracture reduction prior plate osteosynthesis. Denudation the periosteum remains problematic disadvantage this procedure. This study analyzed effect an on load failure in osteosynthesis oblique shaft fractures. Materials and methods On eight pairs non-osteoporotic human femora (mean age 74 years; range 57–95 years), unstable AO/OTA...

10.1007/s00402-020-03586-1 article EN cc-by Archives of Orthopaedic and Trauma Surgery 2020-08-27

The aim of this study was to evaluate changes in activities daily living and self-reported health status the first year after fragility fractures pelvis. We found out that these lead a significant, long-lasting deterioration both parameters, comparable with hip fractures. prospective development identify influencing factors (ADL) (HS) pelvis (FFP). A total 134 patients FFP ≥ 60 years were included. ADL measured using Barthel index (BI) IADL scale pre-fracture, at 6 weeks, months, 12 months....

10.1007/s00198-021-06104-0 article EN cc-by-nc Osteoporosis International 2021-08-31

Background and Objectives: Patients with occult hip fractures are a difficult subgroup to treat. MRI is the gold standard for diagnosing proximal femur but costly may not be readily available in an emergency setting. The purpose of this study was determine whether changes geometry can predict likelihood fracture patients presenting pain following ground-level fall. Material Methods: admitted hospital clinical suspicion initial negative radiographs over seven-year period were included. All...

10.3390/medicina59111987 article EN cc-by Medicina 2023-11-11

Abstract Introduction While overcrowding of emergency departments was often reported in the recent years, during early phase pandemic, a reduction patient numbers seen. The aim current study to describe orthopedic trauma cohort presenting department (ED) pandemic period as compared from analogue time 2019. Materials and methods A single-center case–control performed. All consecutive patients > 12 years ED were included. Patients same 2019 served control group. Results Compared 2019, 2020,...

10.1007/s00402-021-04234-y article EN cc-by Archives of Orthopaedic and Trauma Surgery 2021-11-09

Sinus floor augmentation (SFA) has become a well-established pre-implantology procedure for alveolar ridge of the posterior maxilla. Using bioceramic bone substitutes avoids second-site surgery autograft harvesting. Compared to which are currently clinically available, there is significant need degrade more rapidly, but still stimulate osteogenesis at same time. This led development bioactive, rapidly resorbable calcium alkali orthophosphate (CAOP) materials, have greater solubility than...

10.4028/www.scientific.net/kem.758.239 article EN Key engineering materials 2017-11-01

Event Abstract Back to Effect of a rapidly resorbable calcium alkali phosphate bone grafting material on formation and osteogenic marker expression after sinus floor augmentation in humans Christine Knabe-Ducheyne1*, Tom Knauf1*, Barbara Peleska2*, Georg Berger3*, Renate Gildenhaar3, Cynthia Wirth3*, Alexander Rack4, Wolf-Dietrich Huebner5 Michael Stiller1 1 Philipps-University Marburg, Dept. Experimental Orofacial Medicine, Germany 2 Philipps University Department Prosthodontics, 3 Federal...

10.3389/conf.fbioe.2016.01.01833 article EN cc-by Frontiers in Bioengineering and Biotechnology 2016-01-01

Aim Due to demographic change, the number of geriatric patients is still rising. Although hip fractures are subject current research, little known about remaining trauma entities. The aim this study was collect data age‐related traumatological intensive care unit (ICU) population, its underlying diagnosis, and influence on mortality length stay in ICU. Methods Geriatric (aged ≥65 years) treated postoperatively our surgical ICU were included retrospective observational covering period...

10.1111/ggi.14053 article EN cc-by Geriatrics and gerontology international/Geriatrics & gerontology international 2020-11-05

Backgroundand Objectives: Hip fractures are among the most typical geriatric fractures. Subtrochanteric considered difficult to treat, and, date, there is no consensus on optimal surgical treatment. Materialisand Methods: We analyzed data from Registry for Geriatric Trauma, which includes patients ≥ 70 years old with hip or periprosthetic requiring surgery (21,734 in 2017–2019). For this study, we only subgroup of a subtrochanteric fracture. difference between closed and open methods range...

10.3390/medicina57070659 article EN cc-by Medicina 2021-06-27

Abstract Background and objectives The outcomes of patients with atypical subtrochanteric fractures (ASFs) remain unclear. Data from a large international geriatric trauma registry were analysed to examine the outcome ASFs compared typical osteoporotic (TSFs). Materials methods Registry for Geriatric Trauma German Society (Deutsche Gesellschaft für Unfallchirurgie [DGU]) (ATR-DGU) analysed. All treated surgically or TSFs included in this analysis. Across both fracture types, paired matching...

10.1007/s00402-024-05297-3 article EN cc-by Archives of Orthopaedic and Trauma Surgery 2024-04-20
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