Sökning: "micromotion"

Visar resultat 1 - 5 av 13 avhandlingar innehållade ordet micromotion.

1. 1. Kinematics and fixation of total knee arthroplasties : a clinical, radiographic, scintimetric, and roentgen stereophotogrammetric evaluation

   Författare :Kjell G. Nilsson; Johan Kärrholm; Leif Ryd; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Total knee arthroplasty; tibial component; kinematics; micromotion; loosening; scintimetry; roentgen stereophotogrammetric analysis;

   Sammanfattning : Aseptic loosening of the tibial component is an important cause of failure after total knee arthroplasty. Bone destruction often claimed to be caused by the cement makes the revision difficult. In order to treat younger patients, uncemented fixation has been introduced, but the etiology to loosening is multifactorial and only partly known. LÄS MER

3. 2. Trochanteric Hip Fractures Clinical Outcomes and the Cut-out Complication

   Författare :Alicja J. Bojan; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; trochanteric hip fracture; cut-out; intramedullary fixation; RSA; micromotion;

   Sammanfattning : The established treatment for trochanteric hip fractures is internal fixation, either intramedullary (nail) or extramedullary (plate). Approximately 10% of these patients suffer from mechanical complications, the most frequent one being perforation of the lag screw through the femoral head into the hip joint (cut-out). LÄS MER

4. 3. The fixation of joint prostheses. Aspects on mechanics and biology

   Författare :Ulrik Hansson; Lund Ortopedi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; radiostereometry; histology; interface; micromotion; knee; joint replacement;

   Sammanfattning : Abstract: In the interface, between implant and bone or between the cement and bone, there will develop some amount of fibrous tissue. The synovial fluid, the synovium, the cartilage and the subchondral bone from the non-replaced knee compartment that had been exposed to wear particles were studied by histological analyses. LÄS MER

5. 4. Pelvic fractures : epidemiology and treatment

   Författare :Natalie Lundin; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : The epidemiology of pelvic and acetabular fractures has been sparsely described and up-to date information on incidence, demographic distributions and treatment are lacking. Surgical treatment of pelvic and acetabular fractures is often considered for patients after high-energy trauma and/or in acetabular fractures with intraarticular incongruency. LÄS MER

7. 5. BMP implants in bone formation. Studies in rabbits and rats

   Författare :Charlotte Jeppsson; Malmö Handkirurgi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ortopedi; traumatologi; graft resorption.; Kirurgi; Surgery; orthopaedics; traumatology; bone formation; bone graft; hydroxyapatite; collagen; bisphosphonate; rat; rabbit; titanium chamber; BMP; TGF-ß;

   Sammanfattning : Bone morphogenic proteins, BMPs, are a group endogenous proteins that are highly conserved through evolution. The amino acid sequences of about 15 different BMPs are now known and recombinant human BMPs are commercially available. Implantation of an individual BMP protein is sufficient to induce bone formation even at a subcutaneous site. LÄS MER