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The survey assessed tribological properties of the materials based on ultra-high-molecular-weight polyethylene for joint replacement liners by several major manufacturers. Being their crucial parameter, the mass wear rates were compared. Scanning electron microscopy was used to assess the metamorphosis of the materials surface after friction. With its help, the morphology of the surfaces with wear particles was assessed. Using IR spectroscopy, oxygen-containing functional groups were identified on the friction surfaces, which were formed during tribooxidative processes. The tribological properties of the materials were compared with their thermal and structural properties.
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http://dx.doi.org/10.1080/09205063.2025.2551925 | DOI Listing |
Adv Ther
September 2025
Petauri Evidence, Nottingham, UK.
Introduction: Hemophilia A, an X-linked recessive bleeding disorder, is characterized by reduced factor VIII (FVIII) activity. Hemophilia A can significantly impact a person's quality of life because of the risk of spontaneous bleeding. Treatment for hemophilia A aims to prevent bleeding from occurring.
View Article and Find Full Text PDFArch Orthop Trauma Surg
September 2025
Adult Reconstruction and Joint Replacement Service, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA.
Background: Differentiating periprosthetic joint infections (PJI) from aseptic failure is challenging in total joint arthroplasty. To date, there is no consensus about the most accurate criteria to diagnose PJI. The current study compares common diagnostic PJI criteria.
View Article and Find Full Text PDFArch Orthop Trauma Surg
September 2025
Division of Orthopaedics and Traumatology, Cantonal Hospital Winterthur, Winterthur, Switzerland.
Background: Accurate acetabular cup orientation in total hip arthroplasty (THA) is crucial for successful outcomes. Intraoperative fluoroscopy may be used to evaluate acetabular cup placement. This study aimed to evaluate the accuracy of purely visual estimation of cup inclination and anteversion using intraoperative fluoroscopy, considering different surgeon experience levels and cup designs.
View Article and Find Full Text PDFJ Am Acad Orthop Surg Glob Res Rev
September 2025
From the Mayo Clinic Alix School of Medicine, Scottsdale, AZ (Ms. Hiredesai and Mr. Holle), and the Department of Orthopedic Surgery, Mayo Clinic, Phoenix, AZ (Dr. Van Schuyver, Dr. Deckey, Dr. Probst, and Dr. Spangehl).
Atraumatic bilateral osteonecrosis of the femoral head (ONFH) is a rare phenomenon whose etiology is not fully understood. In this report, we describe the case of a 75-year-old female patient who developed rapidly onset bilateral ONFH after intra-articular corticosteroid injections. She was treated with staged bilateral total hip arthroplasty.
View Article and Find Full Text PDFJ Am Acad Orthop Surg Glob Res Rev
September 2025
From the American Hip Institute Research Foundation (Dr. Quesada-Jimenez, Dr. Kahana-Rojkind, and Dr. Domb), and the American Hip Institute, Chicago, IL (Dr. Domb).
Hip pain after a total hip arthroplasty is a prevalent condition. Once aseptic loosening and infection have been ruled out, the possible entities are vast. Accurate diagnosis in this patient population is challenging because they might present in different stages of their recovery process and the potential overlap of some conditions.
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