Sökning: "Bone cement"

Visar resultat 11 - 15 av 48 avhandlingar innehållade orden Bone cement.

  1. 11. Morcelised Impacted Cortico-Cancellous Bone Allografts in Revision Surgery for Endoprosthetic Loosening with Osteolysis

    Författare :Gösta Ullmark; Johan Kärrholm; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Surgery; Total hip arthroplasty; total knee arthroplasty; graft impaction; revision; histology; biomechanic; cement; positron emission tomography; Kirurgi; Surgery; Kirurgi; Surgery; kirurgi;

    Sammanfattning : Revision total hip arthroplasty (RTHA) and filling of the bone defects with impacted particulated bone allograft is the concept that has been studied in this thesis. In three in vitro models, biomechanical aspects of morcelised and impacted bone allografts were studied. LÄS MER

  3. 12. The biological and physical performance of high strength dicalcium phosphate cement in physiologically relevant models

    Författare :Michael Pujari-Palmer; Håkan Engqvist; Marjam Karlsson Ott; Christele Combes; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; biomaterial; bioceramic; osteoinduction; calcium phosphate; cement; osteoblast; pyrophosphate; Rebamipide; drug delivery; screw augmentation; Teknisk fysik med inriktning mot materialvetenskap; Engineering Science with specialization in Materials Science;

    Sammanfattning : The chemical properties of calcium phosphate cements (CPCs) are very similar to the mineral phase of bone. CPCs are, consequently, very effective substrates (scaffolds) for tissue engineering; bone and stem cells attach readily, and can proliferate and differentiate to form new bone tissue. LÄS MER

  4. 13. Parathyroid hormone for bone repair and implant fixation - Experiment in rats

    Författare :Ralf Skripitz; Lund Ortopedi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; PMMA-cement; torque; tensile tesst; Bone conduction chamber; PTH; rats; Surgery; orthopaedics; traumatology; Kirurgi; ortopedi; traumatologi;

    Sammanfattning : Intermittently administered PTH is known to increase bone mass in osteoporosis models. We studied its effects in bone repair and implant fixation, using histological and mechanical techniques in rats. LÄS MER

  5. 14. New polymer materials in total hip arthroplasty. Evaluation with radiostereometry, bone densitometry, radiography and clinical parameters

    Författare :Georgios Digas; Göteborgs universitet; []
    Nyckelord :Total hip arthroplasty; polyethylene; bone cement; wear; fixation; and radiostereometry.;

    Sammanfattning : Aims: To evaluate the outcome of different types of polyethylene, bone cements and one design of uncemented fixation with porous and ceramic coating using radiostereometry, bone densitometry, conventional radiography and clinical parameters.Materials and methods: Study 1: 201 patients were extracted from 5 prospective randomised studies to evaluate femoral head penetration at two years with radiostereometry in four basic designs, cemented Lubinus and Reflection cups, uncemented Trilogy and Reflection cups. LÄS MER

  7. 15. Resorbable Bone Cement for Augmentation of Hip Fracture

    Författare :Per Mattsson; Sune Larsson; Nils Dalen; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Surgery; Kirurgi; Surgery; Kirurgi;

    Sammanfattning : Surgical treatment of hip fractures is frequently associated with secondary fracture displacement, in part due to weak osteoporotic bone. So far, improvements have focused on new metal implants although an alternative could be to augment the bone that surrounds the implant. LÄS MER