22 results on '"Inga Langner"'
Search Results
2. MR microscopy of the developing upper extremity of the chicken in ovo using 7 Tesla MRI
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Felix Streckenbach, Malte Jäschke, Nora Jahns, Inga Langner, Julia König, Andreas Wree, Thomas Stahnke, Oliver Stachs, Marcus Frank, Sönke Langner, and Tobias Lindner
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General Veterinary ,General Medicine - Abstract
MR microscopy (MRM) is known as ultra-high-field (UHF) magnetic resonance imaging with an in-plane spatial resolution of100 μm, yields highly resolved non-invasive anatomical imaging and allows longitudinal assessment of embryonic avian development. The aim of the present study was to evaluate the feasibility of in vivo anatomical MRI assessment of the developing upper extremity of the chicken. Thirty-eight fertilized chicken eggs were examined at 7 Tesla acquiring high-resolution T2-weighted images with an in-plane resolution of 74 × 74 μm. To reduce motion artefacts, the eggs were moderately cooled before and during MRI. Development of the upper extremity was anatomically and quantitatively assessed. Chondrification and ossification on MRI were correlated with histological examination. MRM allowed the identification of the embryo from stage D5 onwards. First chondrification of the upper extremity was visible at stage D7, and the differentiation of the forearm was possible from stage D9 throughout the developmental period with excellent correlation to histology. MRM also allowed the differentiation between cortical and medullary bone as well as the detection of chondrified areas. UHF MRM allows the in vivo and in ovo evaluation of the upper limb during embryonic development and provides non-invasive longitudinal anatomical information. This technique allows longitudinal studies of the same embryo during the developmental period and may therefore provide further insights into the development of the upper extremity. With improved coil technique and increasing availability of UHF MR systems, there is great potential regarding several research topics in experimental musculoskeletal radiology.
- Published
- 2022
3. Hyperspektralimaging demonstriert mikrozirkulatorische Effekte postoperativer Ergotherapie bei Patienten mit Morbus Dupuytren
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Sebastian von Podewils, Simon Kim, Georg Daeschlein, Esther Henning, Inga Langner, and Claudia Sicher
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Gynecology ,030222 orthopedics ,medicine.medical_specialty ,business.industry ,Exercise therapy ,030230 surgery ,03 medical and health sciences ,0302 clinical medicine ,Neoplasm Recurrence ,Ergotherapy ,medicine ,Orthopedics and Sports Medicine ,Surgery ,business - Abstract
Zusammenfassung Hintergrund Der Morbus Dupuytren (MD) ist eine häufige Bindegewebserkrankung der Hand. Um ein Rezidiv nach Eingriff zu verhindern, erhalten die Patienten in der Regel eine frühzeitige postoperative Ergotherapie (ET). Der Einfluss dieser Maßnahme auf die Durchblutungssituation und damit auf das Auftreten oder Verhindern postoperativer Komplikationen ist jedoch nicht geklärt. Das Hyperspektralimaging (HSI) erlaubt die quantitative Beurteilung der Gewebsperfusion durch Messung der Sauerstoffsättigung und des Wassergehaltes des Gewebes. Ziel Evaluation der mikrozirkulatorischen Effekte der frühen postoperativen Ergotherapie nach partieller Fasziektomie bei MD mittels HSI zur Behandlungsoptimierung. Patienten und Methode Die Sauerstoffsättigung und der Wassergehalt des Gewebes der Hand wurden bei fünf Patienten vor und nach 20 Minuten standarisierter ET am ersten und zweiten postoperativen Tag mittels HSI evaluiert. Ergebnisse HSI zeigte eine qualitativ und quantitativ verbesserte Perfusion nach ET bei allen Patienten. Nach ET kam es zu einer Verbesserung der Sauerstoffsättigung um 20 % und zu einer Reduktion des Wassergehaltes um bis zu 17 %. Schlussfolgerung HSI erlaubt die schnelle und nicht-invasive Bestimmung einer verbesserten Sauerstoffversorgung und eines erniedrigten Wassergehaltes im Gewebe des OP-Gebietes bei Patienten nach partieller Fasziektomie bei MD als Folge der ET. Dies kann die Ursache für eine verbesserte Wundheilung und reduzierte Rezidivrate sein.
- Published
- 2019
4. 3-Tesla Kinematic MRI of the Cervical Spine for Evaluation of Adjacent Level Disease After Monosegmental Anterior Cervical Discectomy and Arthroplasty
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Henry W. S. Schroeder, Inga Langner, Soenke Langner, Marc Matthes, Steffen Fleck, Rebecca Kessler, Christian Rosenstengel, Jan-Uwe Müller, and Sascha Marx
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Adult ,Male ,Total Disc Replacement ,medicine.medical_specialty ,Visual analogue scale ,Radiography ,medicine.medical_treatment ,Intervertebral Disc Degeneration ,Arthroplasty ,Degenerative disc disease ,03 medical and health sciences ,0302 clinical medicine ,medicine ,Humans ,Orthopedics and Sports Medicine ,Range of Motion, Articular ,Intervertebral Disc ,030222 orthopedics ,medicine.diagnostic_test ,business.industry ,Magnetic resonance imaging ,Middle Aged ,medicine.disease ,Sagittal plane ,Biomechanical Phenomena ,Spinal Fusion ,Treatment Outcome ,medicine.anatomical_structure ,Radicular pain ,Cervical Vertebrae ,Female ,Neurology (clinical) ,Radiology ,business ,Range of motion ,030217 neurology & neurosurgery ,Diskectomy ,Follow-Up Studies - Abstract
Study design We prospectively evaluated adjacent disc levels after anterior cervical discectomy and arthroplasty (ACDA) using kinematic magnetic resonance imaging (MRI) and plain functional radiographs. Objective ACDA is an established treatment for degenerative cervical disc disease. The objective of this study was to evaluate the use of kinematic MRI for assessing the range of motion (ROM) before and after ACDA compared with plain functional radiographs and to evaluate adjacent degenerative disc disease (aDDD) at mid-term follow-up. Summary of background data Twenty patients (12 females, 8 males; median age 45.6 ± 6.9 yrs) treated by ACDA (BryanDisc; Medtronic, MN) underwent plain functional radiography and kinematic MRI of the cervical spine at 3 T before and 6 and 24 months after surgery. Methods A sagittal T2-weighted (T2w) 2D turbo spin echo (TSE) sequence and a 3D T2w dataset with secondary axial reconstruction were acquired. Signal intensity of all nonoperated discs was measured in regions of interest (ROI). Disc heights adjacent to the operated segment were measured. ROM was evaluated and compared with plain functional radiographs. Clinical outcome was evaluated using the visual analog scale (VAS) for head, neck and radicular pain, and the neck disability index (NDI). Results Mean ROM of the cervical spine on functional plain radiographs was 21.25 ± 8.19°, 22.29 ± 4.82°, and 26.0 ± 6.9° preoperatively and at 6-month and 24-month follow-up, respectively. Mean ROM at MRI was 27.1 ± 6.78°, 29.45 ± 9.51°, and 31.95 ± 9.58°, respectively. There was a good correlation between both techniques. Follow-up examinations demonstrated no signs of progressive degenerative disc disease of adjacent levels. All patients had clinical improvement up to 24 months after surgery. Conclusion After ACDA, kinematic MRI allows evaluation of the ROM with excellent correlation to plain functional radiographs. Mid-term follow-up after ACDA is without evidence of progressive DDD of adjacent segments. Level of evidence 3.
- Published
- 2017
5. [Hyperspectral imaging demonstrates microcirculatory effects of postoperative exercise therapy in Dupuytren's disease]
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Inga, Langner, Claudia, Sicher, Sebastian, von Podewils, Esther, Henning, Simon, Kim, and Georg, Daeschlein
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Dupuytren Contracture ,Microcirculation ,Humans ,Neoplasm Recurrence, Local ,Exercise Therapy ,Fasciotomy - Abstract
Dupuytren's disease (DD) is a common connective tissue disorder of the hand. To prevent recurrence of contractures, patients usually receive early postoperative ergotherapy (ET). However, it is yet unknown how this measure impacts on local blood flow and hence on the occurrence or prevention of postoperative complications. Hyperspectral imaging (HSI) allows for a quantitative evaluation of tissue perfusion by measuring oxygen saturation and tissue water content.The aim of this work was to evaluate the microcirculatory effects of early ET after partial fasciectomy in DD using HSI for optimised treatment and prevention.In five patients, the oxygen saturation and tissue water content of the hand were measured before and 20 min after exercise therapy on the first two postoperative days using HSI.HSI demonstrated improved tissue perfusion in terms of quantity and quality following ET in all patients. After ET, all patients showed a relative increase in oxygen saturation of up to 20 % and a reduction in tissue water of up to 17 %.HIS allows for a fast and non-invasive evaluation of increased oxygen supply and decreased tissue water content in the surgical site after partial fasciectomy in DD following postoperative exercise therapy. This may improve wound healing and decrease the rate of recurrence in DD.Der Morbus Dupuytren (MD) ist eine häufige Bindegewebserkrankung der Hand. Um ein Rezidiv nach Eingriff zu verhindern, erhalten die Patienten in der Regel eine frühzeitige postoperative Ergotherapie (ET). Der Einfluss dieser Maßnahme auf die Durchblutungssituation und damit auf das Auftreten oder Verhindern postoperativer Komplikationen ist jedoch nicht geklärt. Das Hyperspektralimaging (HSI) erlaubt die quantitative Beurteilung der Gewebsperfusion durch Messung der Sauerstoffsättigung und des Wassergehaltes des Gewebes. ZIEL: Evaluation der mikrozirkulatorischen Effekte der frühen postoperativen Ergotherapie nach partieller Fasziektomie bei MD mittels HSI zur Behandlungsoptimierung.Die Sauerstoffsättigung und der Wassergehalt des Gewebes der Hand wurden bei fünf Patienten vor und nach 20 Minuten standarisierter ET am ersten und zweiten postoperativen Tag mittels HSI evaluiert.HSI zeigte eine qualitativ und quantitativ verbesserte Perfusion nach ET bei allen Patienten. Nach ET kam es zu einer Verbesserung der Sauerstoffsättigung um 20 % und zu einer Reduktion des Wassergehaltes um bis zu 17 %.HSI erlaubt die schnelle und nicht-invasive Bestimmung einer verbesserten Sauerstoffversorgung und eines erniedrigten Wassergehaltes im Gewebe des OP-Gebietes bei Patienten nach partieller Fasziektomie bei MD als Folge der ET. Dies kann die Ursache für eine verbesserte Wundheilung und reduzierte Rezidivrate sein.
- Published
- 2019
6. Differences in Neuronal Representation of Mental Rotation in Patients With Complex Regional Pain Syndrome and Healthy Controls
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Inga Langner, S. Strauss, Taras I. Usichenko, Maximilian Kohler, Nicola Neumann, Martin Lotze, and Ulrike Horn
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Adult ,Male ,medicine.medical_specialty ,Rotation ,Lateralization of brain function ,Mental rotation ,03 medical and health sciences ,0302 clinical medicine ,Physical medicine and rehabilitation ,030202 anesthesiology ,Basal ganglia ,Reaction Time ,Medicine ,Humans ,Aged ,Aged, 80 and over ,Brain Mapping ,medicine.diagnostic_test ,business.industry ,Putamen ,Brain ,Magnetic resonance imaging ,Middle Aged ,medicine.disease ,Hand ,Magnetic Resonance Imaging ,Subthalamic nucleus ,Anesthesiology and Pain Medicine ,Complex regional pain syndrome ,Neurology ,Imagination ,Female ,Neurology (clinical) ,business ,Functional magnetic resonance imaging ,030217 neurology & neurosurgery ,Complex Regional Pain Syndromes - Abstract
Spatial integration of parts of the body is impaired in patients with complex regional pain syndrome (CRPS). Because the training of mental rotation (MR) has been shown to be among the effective therapy strategies for CRPS, impairment of MR is also important for the pathophysiological understanding of CRPS. The aim of this study was to evaluate whether differences in the neural representation of MR occur between patients with CRPS and healthy controls (HC). Therefore, we included 15 patients with chronic CRPS and 15 age- and gender-matched HC. We assessed behavioral (accuracy and reaction time for MR of both hands), clinical (Disabilities of Arm, Shoulder and Hand questionnaire) and magnetic resonance imaging (T1-weighted, function magnetic resonance imaging during MR) data. Reaction times in the patient group were delayed compared with HC without a lateralization effect for the affected hand side. Although both groups showed an activation pattern typical for MR, only HC showed a highly significant contrast for the rotated versus unrotated hands in the right intraparietal sulcus. Patients with CRPS showed a reduction of functional magnetic resonance imaging activation in areas including the subthalamic nucleus, nucleus accumbens, and putamen. Regression analysis for the CRPS group emphasized the importance of putamen and nucleus accumbens activation for MR performance. This study highlights the reduced access of patients with CRPS for mental resources modulating arousal, emotional response, and subcortical sensorimotor integration. Perspective This study localized the underlying neural responses for impaired mental rotation in patients with complex regional pain syndrome as a decrease in basal ganglia (putamen) and nucleus accumbens activation.
- Published
- 2018
7. Ultrahigh-Field Quantitative MR Microscopy of the Chicken Eye In Vivo Throughout the In Ovo Period
- Author
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Marcus Frank, Rudolf F. Guthoff, Anne-Marie Neumann, Tobias Lindner, Sönke Langner, Änne Glass, Inga Langner, Ronja Klose, Thomas Stahnke, Oliver Stachs, Andreas Wree, and Felix Streckenbach
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Cancer Research ,Embryonic Development ,Chick Embryo ,Biology ,In ovo ,Eye ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,Motion ,0302 clinical medicine ,In vivo ,Microscopy ,Fractional anisotropy ,medicine ,Effective diffusion coefficient ,Animals ,Humans ,Radiology, Nuclear Medicine and imaging ,Longitudinal Studies ,Reproducibility of Results ,medicine.anatomical_structure ,Diffusion Magnetic Resonance Imaging ,Diffusion Tensor Imaging ,Oncology ,Lens (anatomy) ,Models, Animal ,Eye development ,Diffusion MRI ,Biomedical engineering - Abstract
Ultrahigh-field MRI (UHF-MRI) with an in-plane spatial resolution of less than 100 μm is known as MR microscopy (MRM). MRM provides highly resolved anatomical images and allows quantitative assessment of different tissue types using diffusion-weighted imaging (DWI). The aim of the present study was to evaluate the feasibility of combined in vivo anatomical and quantitative assessment of the developing chicken eye in ovo. Thirty-eight fertilized chicken eggs were examined at 7.1 T (ClinScan, Bruker Biospin, Germany) acquiring a dataset comprising T2-weighted anatomical images, DWI, and diffusion tensor imaging. To reduce motion artifacts, the eggs were moderately cooled before and during MR imaging. Two eggs were imaged daily for the entire developmental period, and 36 eggs were examined pairwise at only one time point of the embryonic period. Development of the eye was anatomically and quantitatively assessed. From the D5 embryonic stage (116–124 h), MRM allowed differentiation between lens and vitreous body. The lens core and periphery were first identified at D9. DWI allowed quantification of lens maturation based on a significant decrease in apparent diffusion coefficient values and course of fractional anisotropy. Repeated moderate cooling had no influence on the development of the chicken embryo. MRM allows in vivo assessment of embryonic development of the chicken eye in ovo without affecting normal development. The method provides anatomical information supplemented by quantitative evaluation of lens development using DWI. With increasing availability of ultrahigh-field MR systems, this technique may provide a noninvasive complementary tool in the field of experimental ophthalmology.
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- 2018
8. Ultra-High-Field MR Microscopy of the Upper Extremity of the Chicken in Vivo Throughout the in Ovo Period
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Thomas Stahnke, Oliver Stachs, Stefan Hadlich, Tobias Lindner, Andreas Wree, Malte Jäschke, Inga Langner, Sönke Langner, and Nora Jahns
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Andrology ,In vivo ,business.industry ,Ultra high field ,Period (gene) ,Microscopy ,Medicine ,In ovo ,business - Published
- 2018
9. Hyperspectral imaging as a novel diagnostic tool in microcirculation of wounds
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Inga Langner, Thomas Wild, Sebastian von Podewils, Georg Daeschlein, Claudia Sicher, Michael Jünger, and Thomas Kiefer
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Chronic wound ,Male ,medicine.medical_specialty ,Physiology ,01 natural sciences ,Microcirculation ,010309 optics ,03 medical and health sciences ,0302 clinical medicine ,Physiology (medical) ,0103 physical sciences ,Medicine ,Humans ,Abscess ,Oxygen saturation (medicine) ,Aged ,Skin ,Aged, 80 and over ,Wound Healing ,integumentary system ,business.industry ,Soft tissue ,Hyperspectral imaging ,Hematology ,Middle Aged ,medicine.disease ,030220 oncology & carcinogenesis ,Female ,Radiology ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business ,Wound healing ,Perfusion - Abstract
Monitoring of perfusion is a cornerstone in surgery, phlebology and basic science to proof wound healing by interventions. In chronic wound management it is of utmost importance to realize and parametrize wound bed perfusion to verify actual, and plan further treatment by noninvasive diagnostics. Up to now monitoring is based on visual inspection of wounds as conventionally practiced over more than decades. The main problems of visual inspection are the lack of standardization and comparability because of interindividual variations. Therefore technical performance with contact free probes based on standardized perfusion measuring is strongly needed. Hyperspectral imaging (HSI) was investigated to overcome manual and visual wound inspection in monitoring of wound healing. HSI works noninvasive, and imaging of relevant perfusion parameters is possible without the need of contrast enhancing drugs. METHODS HSI technology uses imaging spectroscopic analysis in visual and near infrared spectrum to get information on imaged tissue in less than 10 s. Tissue is radiated by broad spectrum light and the following parameters are calculated from remitted spectra: the grade of oxygenation and the volume proportion of hemoglobin (in superficial and also deeper (8 mm) tissues. The calculated data comprise the "Tissue hemoglobin oxygen saturation" (StO2) as percental oxygenation index to assess superficial perfusion (VIS-spectrum), the "Near infrared perfusion" (NIR) to assess deeper perfusion (near infrared spectrum) and the "Tissue hemoglobin index" (THI) to measure the percental volume of hemoglobin of surface perfusion (VIS-spectrum). The measurements of these parameters are calculated as false color-coded perfusion results on screen.We investigated different kind of wounds (combustion, infection, ulcer wounds, wounds in immune disorders, trauma wounds) determining superficial and deeper oxygen saturation, hemoglobin distribution and water content using hyperspectral imaging with TIVITA™ Tissue system. RESULTS Hyperspectral Imaging allowed easy real time determination and visualization of hemodynamically relevant parameters- superficial and deeper oxygen saturation, total hemoglobin and tissue water content. In the patient with scleroderma, acral lesions with decreased perfusion correlated well with necrotic skin aspects.HSI clearly revealed macroscopic conspicuous suture wounds after Dupuytren surgery, infected soft tissue wounds with strong inflammatory hyperemia, edema in burn injuries, spatial geometry of abscess formation and chronic ulcer wounds. All measurements influenced further surveillance decisions. Hyperspectral imaging seems suitable for routine diagnostics and monitoring of skin and soft tissue lesions like acute and chronic wounds. It allows surveillance of postoperative suture wounds and burn wounds. Special indications may be transplant surveillance and monitoring of therapeutical interventions.
- Published
- 2017
10. Verzeichnis der Autorinnen und Autoren
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Dieter Kohn, Klaus-Peter Günther, Hanns-Peter Scharf, Michael H. Amlang, Ralf Bieger, Frederic Bludau, Konstantinos Cafaltzis, Andreas Eisenschenk, Emanuel V. Geiger, Albrecht Hartmann, Michael Jagodzinski, Inga Langner, Lars-Johannes Lehmann, Henning Madry, Ingo Marzi, Thomas Mittlmeier, Mohamed Moursy, Andreas Niemeier, Maya Niethard, Milan Niks, Ines Panzner, Maximilian Petri, Stefan Rammelt, Heiko Reichel, Wolfgang Rüther, Falk Thielemann, Marcus Tonak, Per-Ulf Tunn, Reinhard Windhager, and Hans Zwipp
- Published
- 2017
11. Inhibition of microbial growth by cold atmospheric plasma compared with the antiseptics chlorhexidine digluconate, octenidine dihydrochloride, and polyhexanide
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Inga Langner, Farzana Rebert, Axel Kramer, Nils-Olaf Hübner, Christian Kohler, Ina Koban, Thomas Kohlmann, M. Patrzyk, and Rutger Matthes
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Chlorhexidine digluconate ,chemistry.chemical_compound ,Polymers and Plastics ,chemistry ,Polyhexanide ,Bacterial growth ,Condensed Matter Physics ,Octenidine dihydrochloride ,Nuclear chemistry - Published
- 2019
12. MR microscopy of the human finger and correlation with histology-a proof-of-principle study
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Soenke Langner, PC Krüger, K. Evert, Axel Ekkernkamp, Norbert Hosten, Inga Langner, S Hadlich, Andreas Eisenschenk, and A. Zach
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Histology ,integumentary system ,medicine.diagnostic_test ,business.industry ,Magnetic resonance imaging ,General Medicine ,Anatomy ,Diagnostic evaluation ,Neurovascular bundle ,computer.software_genre ,Tendon ,medicine.anatomical_structure ,Voxel ,Microscopy ,medicine ,Nuclear medicine ,business ,computer ,Histological examination - Abstract
Magnetic resonance imaging (MRI) with small surface coils is a well established method for the diagnostic evaluation of finger masses. Until now, histological examination has been required to reliably assess tumor extent and infiltration of surrounding structures. Ultra-high-field MR microscopy (MRM) allows evaluation of anatomical structures and pathologies with submillimeter resolution. This study describes the diagnostic prospects and potential of MRM based on the ex-vivo examination of different finger pathologies. Ten human digits were examined by ex-vivo MRM at 7.1 Tesla (ClinScan, Bruker BioScan) using a T2-weighted turbo spin echo (TSE) sequence. Imaging parameters were: TE 48 ms; TR 8370 ms; slice thickness 700 µm; matrix size 1024 × 1024 pixels; FOV 37 × 37 mm; in-plane resolution 36 × 36 µm/voxel. Afterwards specimens were examined histologically. Histology and MRM were correlated. MRM allowed evaluation of the anatomy of the nail, the tendon insertions, the distal interphalangeal joint, and the neurovascular bundles. Finger abnormalities evaluated by MRM included osteomyelitis and metastatic disease. Subsequent histological examination confirmed MRM findings regarding origin, internal makeup, and extent of the structures visualized. This study demonstrates the potential of MRM for imaging small anatomical structures and pathologies of the human finger. Our ex-vivo findings correlate strongly with histology, suggesting that MRM may gain a central role in assessing anatomical structures and pathology in terms of morphology, extent, and infiltration of surrounding structures. Therefore, with increasing availability, MRM is expected to become an essential tool not only in experimental studies but also for daily routine.
- Published
- 2013
13. Ganglions of the Wrist and Associated Triangular Fibrocartilage Lesions: A Prospective Study in Arthroscopically-treated Patients
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Inga Langner, H.R. Merk, Axel Ekkernkamp, P.C. Krueger, and A. Zach
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Adult ,Male ,Triangular Fibrocartilage ,medicine.medical_specialty ,Adolescent ,Triangular fibrocartilage ,Wrist ,Statistics, Nonparametric ,Arthroscopy ,Disability Evaluation ,Humans ,Medicine ,Orthopedics and Sports Medicine ,Prospective Studies ,Prospective cohort study ,Pain Measurement ,Ganglion Cysts ,medicine.diagnostic_test ,business.industry ,Soft tissue ,Magnetic resonance imaging ,Middle Aged ,Magnetic Resonance Imaging ,Surgery ,Treatment Outcome ,medicine.anatomical_structure ,Ligament ,Female ,business ,Triangular Fibrocartilage Complex - Abstract
Purpose Wrist ganglions are the most common soft tissue tumors of the hand and wrist and can occur at any age. Their etiology remains controversial. A high prevalence of associated intrinsic ligamentous lesions has been described. We hypothesized that painful wrist ganglions are an indicator of an underlying joint abnormality, particularly of lesions of the triangular fibrocartilage complex (TFCC). The aim of our study was to prospectively determine the prevalence of associated TFCC lesions in patients with painful wrist ganglions. Methods Forty-six patients (35 women, 11 men; mean age, 36 ± 11 y; range, 18–57 y) with painful wrist ganglions (20 radiopalmar and 26 dorsal) had surgery from January 2008 to June 2010. There were 18 primary and 28 recurrent ganglions. Clinical examinations, pain score evaluations, disabilities in daily life evaluations, plain radiographs, and magnetic resonance imaging were obtained before arthroscopic resection. Concomitant intrinsic lesions of the wrist were assessed with magnetic resonance imaging and re-evaluated by arthroscopy. Results All ganglions were successfully resected. Overall, arthroscopy identified 22 TFCC lesions (48%) and 2 intracarpal ligament lesions. The TFCC perforations were more commonly associated with radiopalmar ganglions with a positive ulnocarpal stress test result and with recurrent radiopalmar ganglions. At 1-year follow-up, all patients were meaningfully improved in terms of pain and disabilities in daily life. Conclusions Arthroscopy allows for the simultaneous treatment of ganglions and other pathologies. Therefore, arthroscopy should be contemplated as the primary treatment option for patients with painful ganglions of the wrist if they are in a radiopalmar location with a positive ulnocarpal stress test and for patients with recurrent radiopalmar ganglions, which are also highly associated with TFCC abnormalities. Type of study/level of evidence Therapeutic IV.
- Published
- 2012
14. Acute upper gastrointestinal hemorrhage: is a radiological interventional approach an alternative to emergency surgery?
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A. Glitsch, W. v. Bernstorff, L. I. Partecke, Soenke Langner, Inga Langner, M. Kraft, and N. Hosten
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Male ,medicine.medical_specialty ,Endoscopy, Gastrointestinal ,Upper Gastrointestinal Tract ,Emergency surgery ,Risk Factors ,Humans ,Medicine ,Radiology, Nuclear Medicine and imaging ,Acute upper gastrointestinal hemorrhage ,Aged ,Retrospective Studies ,medicine.diagnostic_test ,business.industry ,Mortality rate ,Incidence (epidemiology) ,Retrospective cohort study ,Endoscopy ,Surgery ,Radiography ,Radiological weapon ,Shock (circulatory) ,Emergency Medicine ,Female ,medicine.symptom ,Emergency Service, Hospital ,Gastrointestinal Hemorrhage ,business - Abstract
The aim of our study was to discuss the option of endovascular treatment compared to surgery for patients with endoscopically unmanageable nonvariceal hemorrhage of the upper gastrointestinal tract. From 2000 to 2006, 23 patients (male, 15 male; female, 8; mean age, 69 years) who failed endoscopic therapy for upper gastrointestinal hemorrhage were retrospectively evaluated. Twelve patients were operated on (SG), whereas 11 patients had an endovascular intervention (IG). Technical and primary clinical success rates and complications rates were calculated. Clinical parameters and comorbidities were related to outcome. The surgical group suffered less frequently from pre-existing pulmonary diseases (SG, 17%; IG, 55%; p = 0.05) and had a higher incidence of shock requiring catecholamines (p < 0.01) or plasma expander therapy (p < 0.01). There was no significant difference in the incidence of recurrent bleeding episodes (SG, 17%; IG, 27%; p = 0.35) and mortality rates (SG, 17%; IG, 27%, p = 0.35). Deaths in the IG were due to recurrent bleeding. In patients with unsuccessful endoscopic control of nonvariceal bleeding of the upper GI tract, surgery remains a very effective treatment. However, in patients with a high surgical risk due to unknown bleeding sources and/or severe pre-existing diseases/comorbidities, endovascular therapy offers an excellent treatment option. These patients should then be operated on as early as possible to minimize the risk of recurrent bleeding episodes, which are associated with high morbidity and mortality.
- Published
- 2008
15. Comparison of clinical results after pisiformectomy in patients with rheumatic versus posttraumatic osteoarthritis
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Martin Lautenbach, Inga Langner, Ulrike Arntz, Michael Millrose, and Andreas Eisenschenk
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musculoskeletal diseases ,Adult ,Male ,medicine.medical_specialty ,Osteoarthritis ,Wrist ,Wrist pain ,Psoriatic arthritis ,Young Adult ,medicine ,Humans ,Orthopedics and Sports Medicine ,Aged ,Retrospective Studies ,business.industry ,Retrospective cohort study ,Middle Aged ,medicine.disease ,Wrist Injuries ,Ulnar Nerve Compression Syndromes ,Surgery ,Pisiform Bone ,medicine.anatomical_structure ,Rheumatoid arthritis ,Etiology ,Female ,Differential diagnosis ,medicine.symptom ,business - Abstract
Pisotriquetral osteoarthritis is important to consider in the differential diagnosis of chronic ulnar-sided wrist pain. It can develop following traumatic injury to the pisiform or in rheumatic diseases, such as rheumatoid arthritis or psoriatic arthritis. It has been shown that pisiformectomy can relieve symptoms in cases that have not responded to nonoperative treatment, and the excision does not compromise the function or strength of the wrist. Most studies focus on posttraumatic causes of pisotriquetral osteoarthritis. In the current study, rheumatic causes are also considered and the outcomes are compared. This retrospective study included 35 patients who underwent pisiformectomy for pisotriquetral osteoarthritis. All patients underwent a thorough diagnostic evaluation to exclude other etiologies for ulnar-sided wrist pain. Radiological examinations including posteroanterior and lateral views of the wrist and a tangential view of the pisotriquetral joint were analyzed. All patients had excellent or very good results after pisiformectomy, with a significant reduction in pain. No significant difference was found in the outcomes for patients with rheumatic vs posttraumatic osteoarthritis. Patients with rheumatic causes of pisotriquetral osteoarthritis can be successfully treated with pisiformectomy. With respect to idiopathic causes, these patients need a longer postoperative period to gain full pain relief. It is important to consider the possibility of pisotriquetral osteoarthritis after excluding other diagnoses in patients with rheumatic osteoarthritis.
- Published
- 2013
16. Results of Mannerfelt wrist arthrodesis for rheumatoid arthritis in relation to the position of the fused wrist
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Michael Millrose, Inga Langner, Martin Lautenbach, and Andreas Eisenschenk
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musculoskeletal diseases ,Adult ,Male ,Wrist Joint ,medicine.medical_specialty ,medicine.medical_treatment ,Arthrodesis ,Osteoarthritis ,Wrist ,Arthroplasty ,Arthritis, Rheumatoid ,Patient satisfaction ,Physical medicine and rehabilitation ,medicine ,Humans ,Orthopedics and Sports Medicine ,Range of Motion, Articular ,Aged ,Pain Measurement ,Retrospective Studies ,Original Paper ,business.industry ,Retrospective cohort study ,Middle Aged ,medicine.disease ,body regions ,Radiography ,medicine.anatomical_structure ,Treatment Outcome ,Patient Satisfaction ,Rheumatoid arthritis ,Orthopedic surgery ,Physical therapy ,Surgery ,Female ,business - Abstract
The wrist is involved early in rheumatoid arthritis and is often severely affected. A stable wrist is crucial to good hand function, which often necessitates a fusion. One of the most commonly used techniques in rheumatoid patients is the Mannerfelt arthrodesis. In this retrospective study the outcome and the patient's subjective satisfaction are presented and compared to other techniques. Also the influence of the position of the wrist following a fusion procedure is analysed.Thirty-four wrists were retrospectively analysed using radiological measurements, functional scores such as the Disabilities of the Arm, Shoulder and Hand (DASH) and a pain assessment. The objective function of the hand with the fused wrist was assessed.In 92.6% of wrists the patients rated their satisfaction as good or excellent. The mean DASH score post-operatively was 63.3. Of the wrists, 17 were fixed in a median flexed position of 13° and 17 wrists in a median extended position of 8°. There was no statistically significant correlation between the position of the wrist and the satisfaction or objective function. The rate of fusion was 94.1%.The Mannerfelt arthrodesis achieves good results and provides a high rate of satisfaction and pain relief in our study. It has major advantages compared to other wrist fusion techniques in the rheumatoid patient. We could not show clear statistical evidence for better results in either a flexed or an extended position, but the ratings of the patients indicated better subjective results with a slightly extended position of the arthrodesis.
- Published
- 2013
17. Acute inversion injury of the ankle without radiological abnormalities: assessment with high-field MR imaging and correlation of findings with clinical outcome
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Jens Peter Kuehn, Norbert Hosten, Inga Langner, Soenke Langner, Peter Hinz, Axel Ekkernkamp, and Matthias Frank
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Adult ,Male ,medicine.medical_specialty ,Syndesmosis ,Physical examination ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Tibia ,Ankle Injuries ,Physical Examination ,Aged ,medicine.diagnostic_test ,business.industry ,Magnetic resonance imaging ,Middle Aged ,Magnetic Resonance Imaging ,Sagittal plane ,medicine.anatomical_structure ,Treatment Outcome ,Coronal plane ,Orthopedic surgery ,Female ,Radiology ,Ankle ,business - Abstract
Acute inversion injuries of the ankle are the most common sports accidents, accounting for approximately 10% of emergency room admissions. In up to 85%, an injury of the lateral collateral ligaments is observed. Classically, the assessment of these injuries has relied on clinical examination and radiographs, including stress views. The aim of our study was to correlate prospectively the findings of high-field 3 T MRI in acute ankle distortion with clinical outcome. During a 6-month period, 38 patients were prospectively included. MRI was performed within 48 h of trauma and clinical examination using a protocol consisting of axial T2-weighted and coronal and sagittal T1-weighted images and a sagittal proton density (PDw) sequence. Each ligament injury was graded on a three-point scale. Functional outcome was evaluated using the AOFAS ankle-hindfoot scale. In 24/38 patients (63.12%), ligament injury was observed. In 22/24 cases, this was an injury of the lateral ligaments and in 2/24 cases of the medial ligaments. Injury of the syndesmosis occurred in three patients, a bone bruise in four, and an osteochondral lesion in three cases. Patients with an injury of two or more ligaments or a bone bruise had a lower AOFAS score and returned to sports activities and full weight-bearing later (P
- Published
- 2010
18. Rectal intussusception due to re-recurrent ovarian fibrosarcoma
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Inga Langner, Claus-Dieter Heidecke, Wolfram von Bernstorff, Silke Vogelgesang, William Krüger, Anne Glitsch, and Sönke Langner
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Cancer Research ,medicine.medical_specialty ,medicine.medical_treatment ,Fibrosarcoma ,Rectum ,Disease ,Intussusception (medical disorder) ,medicine ,Rectal intussusception ,Humans ,Aged ,Ovarian Neoplasms ,business.industry ,Incidence (epidemiology) ,Hematology ,General Medicine ,Ovarian Fibrosarcoma ,medicine.disease ,Surgery ,Radiation therapy ,medicine.anatomical_structure ,Rectal Diseases ,Treatment Outcome ,Oncology ,Female ,Neoplasm Recurrence, Local ,business ,Adjuvant ,Intussusception - Abstract
Background: Primary ovarian fibrosarcomas are very rare tumours associated with an extremely poor prognosis. Most patients relapse or die within 2 years. Because of the low incidence, it is difficult to identify prognostic factors or to establish treatment guidelines. Case Report: In this report, we present a patient with the second relapse of an ovarian fibrosarcoma localised in the rectosigmoid. The tumour caused intussusception into the rectum, leading to large bowel obstruction. After complete resection of the tumour, the patient completely recovered. 28 months after primary diagnosis, follow-up did not show any signs of recurrent tumour disease. Conclusions: Reviewing the literature, it is recommended that all patients should primarily be operated on and generally be followed up closely. In patients with incomplete resection, palliative chemo- and/or radiotherapy is recommended. In our opinion, in patients with complete resection, adjuvant chemo- and/or radiotherapy should be considered. Only in patients with high-grade fibrosarcomas, adjuvant intra- or postoperative radiotherapy should be applied.
- Published
- 2009
19. Incidence of microperforation for surgical gloves depends on duration of wear
- Author
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Lars Ivo Partecke, Nils-Olaf Huebner, Claus-Dieter Heidecke, Axel Kramer, Ojan Assadian, Anna-Maria Goerdt, Bernd Jaeger, and Inga Langner
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Microbiology (medical) ,medicine.medical_specialty ,Surgical nursing ,Time Factors ,European norm ,Epidemiology ,Perforation (oil well) ,Materials Testing ,Medicine ,Humans ,Gloves, Surgical ,Prospective Studies ,Surgical team ,Equipment Safety ,business.industry ,Incidence (epidemiology) ,Incidence ,Significant difference ,technology, industry, and agriculture ,Surgical Gloves ,equipment and supplies ,Surgery ,body regions ,Equipment Failure Analysis ,Infectious Diseases ,General Surgery ,Equipment Failure ,Aseptic processing ,business - Abstract
Background.The use of sterile gloves is part of general aseptic procedure, which aims to prevent surgical team members from transmitting infectious agents to patients during procedures performed in an operating room. In addition, surgical gloves also protect team members against patient-transmitted infectious agents. Adequate protection, however, requires that the glove material remain intact. The risk of perforations in surgical gloves is thought to correlate with the duration of wear, yet very few prospective studies have addressed this issue.Methods.We prospectively collected 898 consecutive pairs of used surgical gloves over a 9-month period in a single institution. After surgical team members wore the gloves during surgical procedures, the gloves were examined for microperforations using the watertight test described in European Norm 455, part 1. The gloves were analyzed as a pair; if 1 glove had a perforation, the pair was considered to be perforated. In addition, we evaluated the use of a hand cream that contained a suspension of cornstarch and ethanol to determine its potential influence on the rate of microperforation.Results.Wearing gloves for 90 minutes or less resulted in microperforations in 46 (15.4%) of 299 pairs of gloves, whereas wearing gloves for 91-150 minutes resulted in perforation of 54 (18.1%) of 299 pairs, and 71 of (23.7%) of 300 pairs were perforated when the duration of wear was longer than 150 minutes (P = .05). Subgroup analysis revealed no significant difference in the rates of microperforation for surgeons (56 [23.0%] of 244 pairs of gloves perforated), first assistants (43 [19.0%] of 226 pairs perforated), and surgical nurses (53 [20.5%] of 259 pairs perforated). Of 171 microperforations, 114 (66.7%) were found on the left hand glove (ie, the glove on subjects' nondominant hand), predominantly on the left index finger (55 [32.3%]). The use of the hand cream had no influence on the rate of microperforation.Conclusion.Because of the increase in the rate of microperforation over time, it is recommended that surgeons, first assistants, and surgical nurses directly assisting in the operating field change gloves after 90 minutes of surgery.
- Published
- 2009
20. Ganglien des Handgelenks häufig mit TFCC-Läsionen assoziiert
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H.R. Merk, Inga Langner, and P.C. Krueger
- Published
- 2013
21. Band 32, Heft 10, October 2009
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Arnoud J. Templeton, Nick Thatcher, Suleyman Alici, Masafumi Kato, Claus-Dieter Heidecke, Suleyman Buyukberber, Jaime Ceballos, Joaquim Bosch-Barrera, Maria L. Sanz, Jesús García-Foncillas, Ugur Coskun, Peter Bias, Ulrich Gatzemeier, Xiang-Yang Jiang, Inga Langner, Miren Gaztañaga, Sönke Langner, Sergio Cogliatti, Wen-Kang Liu, Jose Luis Perez-Gracia, Qing Fu, Silke Gillessen, Marta Ferrer, Gokhan Celenkoglu, Seong-Jang Kim, Wolfgang Hiddemann, Yong-Ki Kim, David F. Heigener, Miki Ohbayashi, José María López-Picazo, Mei-Ping Zhang, Silvia Ess, Till Seiler, Paul Wheatley-Price, Maider Pretel, Mustafa Benekli, Metin Ozkan, Martin Fehr, Morikazu Miyamoto, G. D'Addario, Masashi Takano, Anne Glitsch, Fiona H Blackhall, Franziska Aebersold, Tomoko Goto, In Joo Kim, Krishnansu S. Tewari, Necati Alkis, Dogan Uncu, Heinz Lubenau, Andreas Engert, Ignacio Gil-Bazo, Naoki Sasaki, William Krüger, Bradley J. Monk, Yun-Ming Li, Alper Sevinc, Auro Del Giglio, Zhen-Xi Zhang, Akio Watanabe, Thomas Cerny, Yoshihiro Kikuchi, Ali Kaya, Miguel Angel Idoate, Martin Früh, Richard Cathomas, David Cerny, Tsunekazu Kita, Tomoyuki Yoshikawa, Ozlem Er, Silke Vogelgesang, Wolfram von Bernstorff, Hiromi Inoue, and Fritz Egli
- Subjects
Cancer Research ,Oncology ,Hematology ,General Medicine - Published
- 2009
22. MR microscopy of the human fetal upper extremity – a proof-of-principle study
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Tobias Lindner, Thomas Stahnke, Simon Kim, Soenke Langner, Jens-Peter Kühn, Inga Langner, Andreas Wree, and Oliver Stachs
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Upper extremity ,Gestational Age ,Biology ,Ultra high-field MRI ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,Fetus ,0302 clinical medicine ,Forearm ,Pregnancy ,MR microscopy ,medicine ,Humans ,Humerus ,Microscopy ,medicine.diagnostic_test ,integumentary system ,business.industry ,Ossification ,Magnetic resonance microscopy ,Histological Techniques ,Gestational age ,Magnetic resonance imaging ,Histology ,Anatomy ,Fetal development ,Magnetic Resonance Imaging ,Pregnancy Trimester, First ,medicine.anatomical_structure ,Female ,medicine.symptom ,Nuclear medicine ,business ,030217 neurology & neurosurgery ,Research Article ,Developmental Biology - Abstract
Background Current knowledge of the human fetal and embryonic development relies on early descriptive studies of humans and from experimental studies of laboratory animals and embryos. Taking the upper extremity as an example, this study explores the potential of magnetic resonance microscopy (MRM) for the assessment of the development of the fetal upper extremity and discusses its correlation with histological findings. Methods Ex vivo MRM at 7.1 T (Clin Scan, Bruker Biospin, Germany) was performed in 10 human specimens at 8 to 12 weeks of gestational age (GA). In-plane resolution was 20 μm with a slice thickness of 70 μm. MRM was followed by histological work-up of the specimens. MRM images were then correlated with conventional histology with a focus on the presence of chondrification and ossification. Results Ossification of the upper human extremity is detectable at 8 weeks GA in the humerus and the long bones of the forearm. There is excellent correlation for location and size of ossification between MRM and conventional histology. MRM imaging is in accordance with historical studies. Conclusion Ex vivo MRM for the non-invasive assessment of the embryonic and fetal development of the upper human extremity is feasible. It may provide an accurate complementary tool for the evaluation of embryological development.
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