Search for dissertations about: "pedicle"

Showing result 1 - 5 of 15 swedish dissertations containing the word pedicle.

  2. 1. Fixation of Spinal Implants : Clinical and Experimental Studies on the Effects of Hydroxyapatite Coating

    Author : Bengt Sandén; Acke Ohlin; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Surgery; Hydroxyapatite; pedicle screw; histomorphometry; fixation; radiolucent zones; screw loosening; Kirurgi; Surgery; Kirurgi; Orthopaedics; ortopedi;

    Abstract : Loosening of implants is a frequent complication in orthopaedic surgery. The aim of this thesis was to evaluate hydroxyapatite coating of pedicle screws with mechanical and histological methods and to correlate the results with the radiological findings.Hydroxyapatite (HA) coating of pedicle screws was investigated in experimental studies in sheep. READ MORE

  4. 2. Augmented navigation

    Author : Gustav Burström; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Spinal fixation procedures have the inherent risk of causing damage to vulnerable anatomical structures such as the spinal cord, nerve roots, and blood vessels. To prevent complications, several technological aids have been introduced. READ MORE

  5. 3. A resorbable device for ligation of blood vessels : development, assessment of surgical procedures and clinical evaluation

    Author : Odd Höglund; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : Maintaining haemostasis during surgery is vital for a successful outcome. The objectives of this thesis were to develop a resorbable device, which would enable safe ligation and less surgical stress than the conventional method. For manufacturing of the device, the resorbable polymer polydioxanone was injection moulded. READ MORE

  6. 4. Adolescent Idiopathic Scoliosis. The Role of Low Dose Computed Tomography

    Author : Kasim Abul-Kasim; Malmö Diagnostisk radiologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; low-dose spine CT; effective dose; screw misplacement; adolescent idiopathic scoliosis; outcome.; titanium screws; image quality; neurovascular complication; phantom;

    Abstract : Continuous implementation of new operative methods for correction and stabilization of spinal deformities in young patients with AIS demands a detailed morphological analysis of the vertebral column. CT spine according to protocols available in daily clinical practice means high radiation dose to these young individuals. READ MORE

  7. 5. Microcirculation in tissue repair - from microsurgery to 3D bioprinting

    Author : Matteo Amoroso; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Microsurgery; 3D bioprinting;

    Abstract : Microsurgical reconstruction is challenged by two main shortcomings: Perfusion Related Complication (PRC) and donor site morbidity. In the first 3 studies of this thesis, we aimed to provide solutions to PRC-problems, investigating hemodilution as a tool able to increase blood flow in flap microcirculation. READ MORE