Kooperativer Bibliotheksverbund

Berlin Brandenburg

and
and

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Harders, Albrecht  (23)
Type of Medium
Language
Year
  • 1
    Language: English
    In: Head & Neck Oncology, July 5, 2010, Vol.2, p.16
    Description: The skull base surgery is one of the most demanding surgeries. There are different structures that can be injured easily, by operating in the skull base. It is very important for the neurosurgeon to choose the right approach in order to reach the lesion without harming the other intact structures. Due to the pioneering work of Cushing, Hirsch, Yasargil, Krause, Dandy and other dedicated neurosurgeons, it is possible to address the tumor and other lesions in the anterior, the mid-line and the posterior cranial base. With the transsphenoidal, the frontolateral, the pterional and the lateral suboccipital approach nearly every region of the skull base is exposable. In the current state many different skull base approaches are described for various neurosurgical diseases during the last 20 years. The selection of an approach may differ from country to country, e.g., in the United States orbitozygomaticotomy for special lesions of the anterior skull base or petrosectomy for clivus meningiomas, are found more frequently than in Europe. The reason for writing the review was the question: Are there keyhole approaches with which someone can deal with a vast variety of lesions in the neurosurgical field? In my opinion the different surgical approaches mentioned above cover almost 95% of all skull base tumors and lesions. In the following text these approaches will be described. These approaches are: 1) pterional approach 2) frontolateral approach 3) transsphenoidal approach 4) suboccipital lateral approach These approaches can be extended and combined with each other. In the following we want to enhance this philosophy.
    Keywords: Bone Cancer -- Care And Treatment ; Neurosurgery -- Health Aspects ; Skull Base -- Physiological Aspects ; Skull Base -- Research
    ISSN: 1758-3284
    Source: Cengage Learning, Inc.
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Language: English
    In: Head & Neck Oncology, July 5, 2010, Vol.2, p.16
    Description: The skull base surgery is one of the most demanding surgeries. There are different structures that can be injured easily, by operating in the skull base. It is very important for the neurosurgeon to choose the right approach in order to reach the lesion without harming the other intact structures. Due to the pioneering work of Cushing, Hirsch, Yasargil, Krause, Dandy and other dedicated neurosurgeons, it is possible to address the tumor and other lesions in the anterior, the mid-line and the posterior cranial base. With the transsphenoidal, the frontolateral, the pterional and the lateral suboccipital approach nearly every region of the skull base is exposable. In the current state many different skull base approaches are described for various neurosurgical diseases during the last 20 years. The selection of an approach may differ from country to country, e.g., in the United States orbitozygomaticotomy for special lesions of the anterior skull base or petrosectomy for clivus meningiomas, are found more frequently than in Europe. The reason for writing the review was the question: Are there keyhole approaches with which someone can deal with a vast variety of lesions in the neurosurgical field? In my opinion the different surgical approaches mentioned above cover almost 95% of all skull base tumors and lesions. In the following text these approaches will be described. These approaches are: 1) pterional approach 2) frontolateral approach 3) transsphenoidal approach 4) suboccipital lateral approach These approaches can be extended and combined with each other. In the following we want to enhance this philosophy.
    Keywords: Bone Cancer -- Care And Treatment ; Neurosurgery -- Health Aspects ; Skull Base -- Physiological Aspects ; Skull Base -- Research
    ISSN: 1758-3284
    Source: Cengage Learning, Inc.
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    Language: English
    In: Clinical Neurology and Neurosurgery, 2010, Vol.112(3), pp.252-257
    Description: The authors discuss a rare case of hemorrhage in a filum terminale ependymoma presenting with acute paraparesis and transient hydrocephalic dementia in association with long-term phenprocoumon anticoagulation. The CT scan of the brain revealed the presence of blood in both occipital horns and communicating hydrocephalus. The symptoms gradually resolved after tumor removal and there was no need for shunting. This is a complex clinical presentation of a spinal cord tumor associated hemorrhage, which further illustrates the possibility of retrograde passage of blood from the lumbosacral region to the ventricles.
    Keywords: Intraventricular Hemorrhage ; Hydrocephalus ; Filum Terminale Ependymoma ; Oral Anticoagulation ; Hemorrhagic Spinal Cord Tumor ; Medicine
    ISSN: 0303-8467
    E-ISSN: 1872-6968
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    Language: English
    In: Head & neck oncology, 05 July 2010, Vol.2, pp.16
    Description: The skull base surgery is one of the most demanding surgeries. There are different structures that can be injured easily, by operating in the skull base. It is very important for the neurosurgeon to choose the right approach in order to reach the lesion without harming the other intact structures. Due to the pioneering work of Cushing, Hirsch, Yasargil, Krause, Dandy and other dedicated neurosurgeons, it is possible to address the tumor and other lesions in the anterior, the mid-line and the posterior cranial base. With the transsphenoidal, the frontolateral, the pterional and the lateral suboccipital approach nearly every region of the skull base is exposable.In the current state many different skull base approaches are described for various neurosurgical diseases during the last 20 years. The selection of an approach may differ from country to country, e.g., in the United States orbitozygomaticotomy for special lesions of the anterior skull base or petrosectomy for clivus meningiomas, are found more frequently than in Europe.The reason for writing the review was the question: Are there keyhole approaches with which someone can deal with a vast variety of lesions in the neurosurgical field?In my opinion the different surgical approaches mentioned above cover almost 95% of all skull base tumors and lesions. In the following text these approaches will be described.These approaches are:1) pterional approach2) frontolateral approach3) transsphenoidal approach4) suboccipital lateral approachThese approaches can be extended and combined with each other. In the following we want to enhance this philosophy.
    Keywords: Neurosurgical Procedures -- Methods ; Skull Base -- Surgery
    E-ISSN: 1758-3284
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    Language: English
    In: Acta Neurochirurgica, 2015, Vol.157(8), pp.1359-1367
    Description: Objectives: The anatomy of the cavernous sinus is described controversially in a number of publications. In the present cadaveric study, the architecture of the dorsolateral wall of the cavernous sinus is studied microsurgically and histologically. Materials and methods: Twenty cadaveric skulls have been dissected through a classical surgical frontotemporal approach. The temporal skull base was flattened and anatomical landmarks like the meningo-orbital band, superior orbital fissure, foramina rotundum, ovale, and spinosum were identified. Lateral of the trigeminal foramina, the dura was cut and the periosteal dural layer was separated from the meningeal layer, identifying an interdural zone. The length and the extent of this zone were evaluated. The dural architecture of the interdural incision zone was examined histologically. Results: In all specimens, two dural layers lateral of the trigeminal foramina could be separated. The identified interdural incision zone extended in a length of 3.8-6.4 cm in the antero-posterior direction. The zone could be followed medially to the superior orbital fissure for 5.3 mm and lateral of the foramen spinosum for 6.4 mm. The separation of the dural layers allowed the approach to the superior border of the cavernous sinus through this interdural incision zone. The histological analysis of the interdural incision zone showed clearly the existence of two dural layers. Conclusions: The architecture of the temporal-fossa-dura allows the microsurgical separation of two meningeal dural layers through a length of 5-6 cm next to the trigeminal foramina. Opening this interdural incision zone allowed exploring the superior border of the cavernous sinus.
    Keywords: Skull base ; Anatomy ; Cavernous sinus ; Interdural incision zone
    ISSN: 0001-6268
    E-ISSN: 0942-0940
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    In: Neurology India, 2007, Vol.55(4), p.355-362
    Description: Background: Ventriculostomy is a common neuroendoscopic operation but one with disastrous complications in rare cases. Aims: The aim of this study was to perform an intravital analysis of the configuration at the floor of the third ventricle as a possible basis for selection of the ventriculostomy site. Materials and Methods: The study population consisted of 32 patients who underwent ventriculostomy for the treatment of hydrocephalus. Perforation of the floor of the third ventricle was carried out on an individual basis following evaluation of the anatomic situation. Video material and magnetic resonance images (MRI) were analyzed. Results: A classification system including three major groups was developed using the inner distance of the mamillary bodies as the key criterion. It was defined as narrow for values between 0 and 1 mm (observed range: 0-0.5 mm), medium for values between 1.1 and 3.4 mm (range 1.1-3.4 mm) and large for values greater than 3.4 mm (range: 3.8-6.9 mm). Statistical analysis of MR and video measurements revealed a good correlation. The ventriculostomy site was rostral of the mamillary bodies in 23 of the patients (n=27) and sligthly occipital in four. The ventriculostomy site was located more to the left in 22 patients and more to the right in five. Conclusion: As a conclusion the ventriculostomy site has to be chosen in each case following a careful review of all available information. A classification system for the anatomical variations as well as the exact size and site of ventriculostomy should be introduced.
    Keywords: Hydrocephalus; neuroendoscopy; third ventricle; ventriculostomy
    ISSN: 0028-3886
    E-ISSN: 1998-4022
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 7
    Language: English
    In: Acta Neuropathologica, 2009, Vol.117(5), pp.591-593
    Description: Byline: Martin Scholz (1), Alexander Hoischen (2), Bernhard Radlwimmer (3), Ruthild G. Weber (2), Albrecht Harders (1), Guido Reifenberger (4), Markus J. Riemenschneider (4) Author Affiliation: (1) Department of Neurosurgery, Ruhr-University, Knappschaftskrankenhaus, Bochum, Germany (2) Department of Human Genetics, Rheinische Friedrich-Wilhelms-University, Bonn, Germany (3) Division of Molecular Genetics, German Cancer Research Center, Heidelberg, Germany (4) Department of Neuropathology, Heinrich-Heine-University, Moorenstr. 5, 40225, Duesseldorf, Germany Article History: Registration Date: 27/02/2009 Received Date: 09/02/2009 Accepted Date: 27/02/2009 Online Date: 06/03/2009 Article note: This work was supported by the Sander Stiftung (Grant no. 2008.014.1 to RGW).
    Keywords: Tumors ; Molecular Genetics ; Cancer Research;
    ISSN: 0001-6322
    E-ISSN: 1432-0533
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 8
    In: Spine, 2009, Vol.34(4), pp.392-398
    Description: STUDY DESIGN.: A prospective analysis. OBJECTIVE.: The idea of this study was to evaluate a new miniature robotic system providing passive guidance for pedicle screw placement at the lumbar spine. Special focus was laid on the postoperative accuracy of screw placement. SUMMARY AND BACKGROUND DATA.: Recent technical developments lead to a minimization of pedicle screw fixation techniques. However, the use of navigational techniques is still under controversy. METHODS.: Patients selected for a minimal invasive posterior lumbar interbody fusion received a spiral computer tomographic scan before surgery. The miniature hexapod robot was mounted to the spinous process and the system moves to the exact entry point according to the trajectory of the surgeon’s preoperative plan. After minimal invasive screw placement all patients received routinely a postoperative spiral computer tomographic scan. Screws placed exactly within the pedicle were evaluated as group A, screws deviating 〈2 mm were evaluated as group B, ≥2 mm to 〈4 mm (group C); ≥4 mm to 〈6 mm (group D); and more than 6 mm (group E). RESULTS.: Thirty-one patients received a PLIF with percutaneous posterior pedicle screw insertion using the bone mounted miniature robotic device. A total of 133 pedicle screws were placed. The majority of the screws were placed in L5 (58 screws; 43.6%). In axial plane, 91.7% of the screws were evaluated as group A and 6.8% were evaluated as group B. In longitudinal plane, 81.2% of the screws were evaluated as group A and 9.8% were evaluated as group B. In 1 screw (L5 right) the postoperative evaluation was done as group C (axial plane) and D (longitudinal plane). In 29/31 cases the integration of the miniature robotic system was successful. CONCLUSION.: In our study the first clinical assessment of a new bone mounted robot system guiding percutaneous pedicle screw placement was done. A deviation 〈2 mm to the surgeon ′s plan in 91.0% to 98.5% verifies the system’s accuracy.
    Keywords: Medicine;
    ISSN: 0362-2436
    ISSN: 15281159
    E-ISSN: 15281159
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 9
    Language: English
    In: Klinische Neuroradiologie, Dec, 2004, Vol.14(4), p.252
    Description: Byline: Bernd Illerhaus (1,3), Martin Scholz (1), Matthias Konig (2), Albrecht Harders (1) Keywords: Traumatische Vertebralisdissektion; Plexus-brachialis-Lasion; Outcome; Traumatic dissection of vertebral artery; Plexus brachialis injury; Outcome Abstract (German): Zusammenfassung Vertebralisdissektionen konnen traumatisch, spontan oder iatrogen verursacht werden. Wahrend spontane Vertebralisdissektionen haufiger sind, finden sich in der Literatur Einzelfallberichte von traumatischen Vertebralisdissektionen. Gerade bei polytraumatisierten Patienten ist die fruhzeitige diagnostische Erkennung schwierig, und die geschilderten Beschwerden des Patienten konnen leicht als Folge der Polytraumatisierung verkannt werden. Im Gegensatz zu den Vertebralisdissektionen stehen die traumatischen Ursachen der Atiopathogenese von Armplexuslasionen an erster Stelle. Trotz ihrer atiopathogenetischen Gemeinsamkeiten wurde nach Kenntnisstand der Autoren in der Literatur bisher noch keine Kombination beider Verletzungen beim traumatisierten Patienten beschrieben. Abstract: Abstract Dissections of vertebral artery can have a traumatic, spontaneous or iatrogenic origin. Although spontaneous dissection of vertebral artery is more frequently found, also cases of traumatic dissections are reported in the literature. Especially in polytraumatized patients, early diagnostic detection may prove difficult and complaints reported by the patients can be misinterpreted. In comparison with vertebral dissection, a plexus brachialis injury due to traumatic origin is well known, especially in motorcycle accidents. To the authors' knowledge the combination of both--plexus brachialis injury and dissection of vertebral artery as documented by magnetic resonance images in a single patient--has never been reported in the literature. Author Affiliation: (1) Neurochirurgische Universitatsklinik Bochum, Knappschaftskrankenhaus, Bochum-Langendreer (2) Institut fur Radiologie, Knappschaftskrankenhaus, Bochum-Langendreer (3) Neurochirurgische Universitatsklinik Bochum, Knappschaftskrankenhaus Bochum-Langendreer, In der Schornau 23--25, 44892, Bochum-Langendreer, Deutschland Article History: Registration Date: 01/01/2004 Received Date: 02/08/2004 Accepted Date: 07/10/2004
    Keywords: Surgery
    ISSN: 0939-7116
    Source: Cengage Learning, Inc.
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 10
    In: Plastic and Reconstructive Surgery, 1999, Vol.104(1), pp.198-203
    Description: A 30-year-old man was referred to us with an extreme frontal and frontobasal defect from a motorbike accident 12 years before. Multiple attempts at frontal and frontobasal revision and reconstruction had been performed over the years, with several episodes of meningitis. Reconstruction was planned in two steps. First, a revision of the anterior skull base with mobilization of meningeal adhesions and duraplasty, removal of infected masses of polymethylmethacrylate out of the upper ethmoid sinuses, and coverage with a deepithelialized latissimus dorsi free flap were performed. In the second step 3 months later, aesthetic forehead reconstruction was achieved with a pre-fabricated individual titanium implant. The predictable result of this two-step reconstruction was very pleasing. Safe separation of the cranial cavity from the upper airways was essential, requiring free tissue transfer in this case, and is a prerequisite for any alloplastic forehead reconstruction. Timing of the two-step procedure, including the CT data acquisition; handling of soft tissues, bone, and foreign material; and construction details of the implant demonstrate the necessary complex management of this, the most difficult case of the 88 applications of the new computer aided design and manufacturing technique thus far. Even the most elaborate computer aided preparation cannot be successful without consideration of established surgical principles.
    Keywords: Prostheses and Implants ; Surgical Flaps ; Reconstructive Surgical Procedures -- Methods;
    ISSN: 0032-1052
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. Further information can be found on the KOBV privacy pages