Publications by authors named "H Malchau"
The optimal fixation method in total hip arthroplasty (THA) remains controversial. Initial concerns related to the long-term performance of cement fixation as well as cement disease led to the development of cementless implants, and registry data has indicated that the use of this type of fixation has increased in recent years. However, data from these same registries has not shown any improvement in outcomes when compared to cement fixation.
View Article and Find Full Text PDFAims: Refobacin Bone Cement R and Palacos + G bone cement were introduced to replace the original cement Refobacin Palacos R in 2005. Both cements were assumed to behave in a biomechanically similar fashion to the original cement. The primary aim of this study was to compare the migration of a polished triple-tapered femoral stem fixed with either Refobacin Bone Cement R or Palacos + G bone cement.
View Article and Find Full Text PDFArticle Synopsis
- The study aimed to explore the relationship between the size of the femoral head in metal-on-polyethylene total hip arthroplasty and the levels of metal ions in the blood of patients.
- A total of 96 patients were divided into two groups based on femoral head size (32 mm vs. 36-44 mm), with metal ion levels measured at two and five years post-surgery, along with patient-reported outcomes.
- Results showed no significant differences in metal ion levels or patient outcome scores between the two groups at five years, suggesting that increasing femoral head size may not lead to higher metal ion levels in this context.
Article Synopsis
- - The study aimed to compare polyethylene wear in total hip arthroplasty (THA) using large metal heads with thin Vitamin E-doped cross-linked polyethylene (VEPE) liners versus standard 32-mm metal heads.
- - Results showed no significant difference in head penetration or rates of periacetabular radiolucencies between the two groups after 5 years, although the intervention group reported higher physical activity levels.
- - Overall, the use of large metal heads in thin VEPE liners did not lead to increased wear or mechanical failures in the long term following THA.
Background: Hip dysplasia is a condition where the acetabulum is too shallow to support the femoral head and is commonly considered a risk factor for hip osteoarthritis. The objective of this study was to develop a deep learning model to diagnose hip dysplasia from plain radiographs and classify dysplastic hips based on their severity.
Methods: We collected pelvic radiographs of 571 patients from two single-center cohorts and one multicenter cohort.