Publications by authors named "Carlos E Gonzalez Rivera"
Aseptic loosening of femoral and acetabular components is a common complication following total hip arthroplasty (THA). It presents a significant diagnostic and therapeutic challenge for orthopedic surgeons, as it requires differentiation from infection and often necessitates complex revision surgery. We present the case of a 76-year-old female with a surgical history of total right hip arthroplasty performed one year prior.
View Article and Find Full Text PDFTemporary antibiotic-loaded cement spacers are widely used for treating chronic periprosthetic hip infections. The aim of this study is to evaluate the short-term tribological performance of ultra-high-molecular-weight polyethylene (UHMWPE) and (60Co) gamma-irradiated cross-linked UHMWPE (XLPE) self-mated systems as frictional pairs for temporary total hip spacers. A three-axial hip joint simulator, FIME II, was used to test the UHMWPE and XLPE self-mated systems under variable load profiles.
View Article and Find Full Text PDFArticle Synopsis
- The study aimed to assess a Kevlar®-based prosthetic ligament as a synthetic graft for the anterior cruciate ligament (ACL) in a rabbit model, analyzing clinical, biomechanical, and morphological aspects.
- A total of 27 rabbit knees were divided into three groups (control, ACL excision, and ACL replacement with Kevlar®), and evaluations were conducted at 6, 12, and 18 weeks post-surgery.
- Results indicated that the Kevlar® prosthesis improved knee stability compared to ACL excision and had comparable displacement to the control group, with favorable histological adaptation observed, supporting further research on artificial ACL prostheses.