Track topics on Twitter Track topics that are important to you
Research with DXA has shown the pattern of bone remodelling around an implant. The baseline and reference value for such calculations is the first measurement after the operation. The baseline measurement is performed at different time from study to study. If there is a rapid bone loss the first weeks after an operation, this will influence the reference value and then the results. To evaluate DXA as a method we decided to set up a study with 3 DXA measurements within the first 2 weeks. Our hypothesis is that there is a rapid bone loss the first 2 weeks after operation and that timing of the first post operative measurement will influence the later results.
Dual x-ray absorptiometry (DXA) has become the most used and proven to be a precise method to investigate changes in bone mass density (BMD). Research with DXA has shown the pattern of bone remodelling around an implant. Results from implant studies are often presented as changes in BMD as a function of time. The baseline and reference value for such calculations is the first measurement after the operation. The most pronounced bone loss after implantation of hip prosthesis usually comes within 3 months. The baseline measurement is performed at different time from study to study. If there is a rapid bone loss the first weeks after an operation, this will influence the reference value and then the results. To evaluate DXA as a method we decided to set up a study with 3 DXA measurements within the first 2 weeks.
We included 23 patients operated with total hip prosthesis (THP). They were measured with DXA at 1, 5 and 14 days, 3 and 12 months after the operation. Results were given in percent (+/-SD) for each Gruen zone. There were no changes in bone density between the first 3 measurements. In all zones, except zone 1, the lowest BMD was measured after 3 months. We concluded that DXA measurements done within 14 days after the operation can be used as reference measurements for later follow ups.
Observational Model: Cohort, Time Perspective: Prospective
Ullevaal University Hospital
Published on BioPortfolio: 2014-07-23T21:11:11-0400
To evaluate the efficacy and safety of platelet rich plasma (PRP) in patients with coxarthrosis who don´t respond to treatment with NSAIDs, compared to treatment with hyaluronic acid (Hyl...
Zink and bone strength
The primary aim of this study is to test if etoricoxib decreases the perioperative blood loss compared to diclofenac. Secondary questions to be explored are: - Does etoricoxib p...
The purpose of this study is to compare the direct anterior approach and the direct lateral approach in primary total hip arthroplasty, regarding the postoperative function and pain, compl...
This is a prospective, randomized study comparing two different bone preparation techniques for insertion of a hydroxylapatite (HA) coated titanium cementless femoral stem. Patients who re...
PURPOSE OF THE STUDY In this study, it was aimed to examine the preoperative and postoperative quality of life and psychiatric symptoms of the patients with primary coxarthrosis after total hip arthro...
We argue that 1-stage bilaterally total hip arthroplasty (THA) could be acceptable in bilateral coxarthrosis because of high-riding developmental dysplasia of the hip (DDH).
Osteoporosis is a disease in which the bones become extremely porous, are subject to fracture, and heal slowly, occurring especially in women following menopause and often leading to curvature of the spine from vertebral collapse. Follow and track&n...
Radiology is the branch of medicine that studies imaging of the body; X-ray (basic, angiography, barium swallows), ultrasound, MRI, CT and PET. These imaging techniques can be used to diagnose, but also to treat a range of conditions, by allowing visuali...