- Pelvic and Acetabular Injuries
- Spinal Fractures and Fixation Techniques
- Orthopedic Surgery and Rehabilitation
- Spine and Intervertebral Disc Pathology
- Hip and Femur Fractures
- Bone health and osteoporosis research
- Bone health and treatments
- Orthopedic Infections and Treatments
- Bone fractures and treatments
- Elbow and Forearm Trauma Treatment
- Management of metastatic bone disease
- Shoulder Injury and Treatment
- Bone and Joint Diseases
- Orthopaedic implants and arthroplasty
- Heterotopic Ossification and Related Conditions
- Trauma Management and Diagnosis
- Total Knee Arthroplasty Outcomes
- Osteomyelitis and Bone Disorders Research
- Pregnancy-related medical research
- Shoulder and Clavicle Injuries
- Dermatological and Skeletal Disorders
- Advanced X-ray and CT Imaging
- Pain Management and Treatment
- Hip disorders and treatments
- Lower Extremity Biomechanics and Pathologies
Zentrum Überleben
2015-2025
Einstein Center for Neurosciences Berlin
2016
Immanuel Krankenhaus
1998-2012
Charité - Universitätsmedizin Berlin
2008-2012
MSB Medical School Berlin
2012
Freie Universität Berlin
1996-2005
Agaplesion Markus Hospital
2005
Goethe University Frankfurt
2005
University of Rostock
2005
Heidelberg University
2005
RATIONALE AND OBJECTIVES. To examine the ability to image fractures of body and hook hamate bone in conventional X-rays high-resolution computed tomography (HR-CT). MATERIALS METHODS. In an vitro experiment using 18 cadaver hands, was fractured at different places. Before after fracture, were taken planes (anteroposterior, lateral, oblique, carpal tunnel), HR-CT performed with 2-mm layer thickness axial, sagittal, coronal plane. RESULTS. Taking into account all X-ray projections applied,...
The treatment of choice in nondisplaced hook hamate fractures is conservative, with lower arm splinting. Displaced should be treated operatively, whereby excision the fragment or open reduction and internal fixation are described. A hamulus ossis hamati fracture was verified 14 patients (mean age, 42 years; range, 21 to 73 years) including 11 men three women. In six (42.9 percent), conservative initiated immediately after trauma a cast for 6 weeks, eight (57.1 percent) were operated on...
The objective of this prospective, randomised study was to examine the feasibility and clinical outcome balloon sacroplasty radiofrequency sacroplasty. In 40 patients with a total 57 sacral fractures, CT-guided cement augmentation performed by means BSP or RFS. For BSP, catheter inflated deflated in fracture zone, hollow space, thus, created then filled PMMA cement. RFS, spongious space zone initially extended using flexible osteotome, highly viscous cement, activated radiofrequency,...
Abstract Background Fragility fractures of the sacrum (FFS) have been detected more and frequently in recent times, incidence will continue to increase due increasing life expectancy. The aim this study was compare clinical outcome conservative, interventional surgical treatment FFS. Methods Retrospectively, 292 patients (276 women, 16 men) with confirmed FFS were followed up over a period 2 years. age women Ø 81.2 (58 - 99) that men 78.1 (76 85) pain quantified using VAS. Fractures...
In elderly patients with reduced bone quality, insufficiency fractures of the sacrum are relatively common and typically accompanied by severe, disabling pain. The objective this study was to evaluate feasibility cement augmentation RFS, as well determine postinterventional leakages present patients' outcomes.In 20 (18 women, 2 men) an average age 80.4 (65-92) years, a fracture detected CT MRI. Clinically manifest osteoporosis QCT values below 50 mg/ml found in all patients. An initially...
<b>Purpose:</b> In the case of metastatic involvement sacrum with destruction and consecutive pathological fracture, intense disabling pain is one defining factors. The feasibility, safety development cement augmentation were to be investigated. <b>Materials Methods:</b> CT-guided balloon sacroplasty was conducted in 10 patients metastasis-induced bone sacrum. After establishment entry point, a K-wire first introduced as far central tumor lesion via short, or transiliac axis. A cannula then...
The absence of osseous consolidation a fracture for 9 or more months with no potential to heal is defined as nonunion. Both the patient and from socioeconomic point view, nonunions represent major problem. Hypertrophic, vital are distinguished atrophic avital ones. Risk factors delayed healing insufficient immobilisation, poor adaptation surfaces residual instability, interposition soft tissue within gap, well circulation disturbances infections. incidence after fractures long bones lies...
Purpose: Open fixation of acute fractures, delayed union and non-union the hamate hook through a palmar approach has been reported. Minimal invasive using dorsal percutaneous headless cannulated mini-screw is another option not commonly considered. The authors present their case series patients who underwent fractures hook. Methods: This study retrospectively reviewed six consecutive (five male one female patient) with non-displaced (< 8 weeks) (8 to 12 treated fixation. indications for...
Hamate hook fractures are rare injuries but appear to occur frequently in underwater rugby, the reason for which was investigated this study. High-level rugby players with diagnosed during a five-year interval (2005–2010) were studied retrospectively. Medical data on these patients reviewed information mechanism of injury, type fracture, radiological imaging, treatment, and outcome. In ten patients, leading hand confirmed by computed tomography, all associated specific games. Conservative...
Ziel: Bei älteren Patienten mit reduzierter Knochenqualität sind Insuffizienzfrakturen des Os sacrum relativ häufig und typischerweise starken, invalidisierenden Schmerzen verbunden. Ziel unserer Studie war die Überprüfung der Durchführbarkeit Sicherheit einer Sacroplastie mittels Ballonkatheter sowie Schmerzreduktion. Material Methoden: 25 wurde im MRT eine Os-sacrum-Fraktur diagnostiziert. Als Ausdruck eines noch vorhandenen Knochenumbauprozesses fand sich bei allen in den stark T...
In elderly patients with reduced bone quality, insufficiency fractures of the sacrum are relatively common and typically associated severe disabling pain. The objective present study was to examine feasibility cement augmentation by CSP, determine post-interventional leakages other complications, outcome pain over course 18 months.In 23 (20 women 3 men) an average age 81.3 (71-92) years, a total 41 sacral were detected MRI, 5 them unilateral bilateral. Conservative treatment initially...
In addition to the pure measurement of bone mineral density (BMD) in osteodensitometry, investigation structure is becoming increasingly important for estimating fracture risk. a clinical study, risk score was proposed which separately assesses BMD and structural parameters spongious cortical aggregates them into single diagnostic parameter. 120 lumbar vertebrae from 40 patients, determined by means quantitative CT using energy procedure (SE-QCT/85 kV). addition, based on high resolution...
Zusammenfassung Beiälteren Patienten mit reduzierter Knochenqualität sind Insuffizienzfrakturen des Os sacrum relativ häufig und typischerweise starken, invalidisierenden Schmerzen verbunden. Ziel unserer Studie war die Durchführbarkeit der Zementaugmentation mittels Ballonkatheterüber individuelle, komplexe Anatomie Ausrichtung Frakturgeschehens berücksichtigende Zugangswege sowie postinterventionelle Erfassung von Leckagen Darstellung klinischen Outcomes. Bei 40 schwerer Osteoporose (24...
Abstract Introduction The objective of this study was a comparative analysis cement augmentation by means RFS and CSP with regard to outcome cost-effectiveness. Patients Methods CT-guided performed on 100 patients total 168 non-dislocated insufficiency fractures, 50 being treated CSP. Leakages were detected CT. Pain intensity determined VAS before after the intervention. patientsʼ self-sufficiency assessed using Barthel index. asked about any complications their level satisfaction. Costs...
Objective: the clinical value of spinal quantitative CT (sQCT) and structural patterns vertebral bone were studied Material Methods: sQCT was performed on 246 patients with a mean age 57 years for whom conventional lateral radiographies thoracic lumbar spine available. All suffering from back pain unknown etiology. mineral density (BMD) midvertebral section 3 bodies determined by means single-energy-(SE)-weighted QCT (85 kV). Spongiosa architecture profile analyses made in axial images. This...
Carpal bossing is an osseous formation at the dorsal portion of quadrangular joint, which rarely becomes symptomatic. However, in some patients it causes pain, restricted mobility and can lead to complications like tendon rupture, inflammatory degenerative joint disease.In this article, we present our experiences with rare disorder order improve diagnostic therapeutic proceedings.This a multicenter interdisciplinary observation made by orthopaedic surgeons radiologists years 2010 2015....
The absence of osseous consolidation a fracture within the normal time period is defined as delayed union or non-union. Both for patient and from socio-economic point view, impaired healing represents major problem. Risk factors are insufficient immobilisation, poor adaptation surfaces, interposition soft tissue in gap, well circulation disturbances, metabolic disease, smoking infections. In animal studies, positive effect parathyroid hormone (PTH) on has been shown. PTH direct stimulatory...
Einleitung: Hamulus ossis hamati-Frakturen können konservativ oder operativ versorgt werden, wobei die Stellung des Fragmentes, Lokalisation und das Alter der Fraktur, mögliche Begleitverletzungen individuelle Bedürfnisse Patienten entscheidend für Wahl Verfahrens sind. Akute nicht dislozierte Frakturen werden meist behandelt, während Pseudarthrosen angegangen werden. Wir berichten unsere Erfahrung in Diagnostik Therapie von 14 Hamulusfrakturen. Methode: In einem Zeitraum drei Jahren wurden...