Sökning: "radiolucent zones"

Hittade 2 avhandlingar innehållade orden radiolucent zones.

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

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

   Sammanfattning : 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. LÄS MER

3. 2. Assessment of acetabular cup position with computed tomography

   Författare :Henrik Olivecrona; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Background: Revision of Total Hip Arthroplasty (THA) due to loosening is necessary in many patients. Diagnosis is usually late with significant bone and soft tissue destruction. Available diagnostic techniques are either not sensitive enough or too complicated and expensive for routine use. LÄS MER