Textured UHMWPE surface to reduce the wear of a knee prosthesis

Ramírez, Tomas de la Mora; Ruiz, M.A. Doñu; Perrusquia, N. López; Bustos, E. García; Flores, M.; Onofre, D. Maldonado; Cruz, I. Hilerio

doi:10.17222/mit.2019.194

Cited by 2 publications

(1 citation statement)

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“…Published by Francis Academic Press, UK -9-because of their superior mechanical properties and biocompatibility [4][5][6] . Titanium alloy is widely used in the field of joint prosthesis because of its light weight, high strength and biocompatibility.…”

Section: Metal Materialsmentioning

confidence: 99%

Material selection and long-term maintenance strategy of knee and hip prosthesis

2024

AJMHS

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With the increasing trend of aging population, knee and hip replacement surgery has been widely used as the main method to treat joint diseases. In this paper, the material selection and longterm maintenance strategy of knee and hip prosthesis are deeply studied. Firstly, by comparing the mechanical properties of metals, ceramics and other new materials, the importance of individualized material selection is put forward. Considering the patient's age, activity level and other factors, it is very important to choose suitable materials for the success of the operation. Secondly, the paper emphasizes the key of long-term maintenance after operation, including regular follow-up, imaging examination, material interface management and other strategies to ensure the long-term stability of joint prosthesis. In particular, the importance of anti-infection strategy in maintenance is emphasized, and the risk of infection is reduced through measures such as preoperative infection risk assessment, intraoperative aseptic operation and preventive antibiotic application. Scientific and reasonable material selection and long-term maintenance strategy are expected to improve the success rate of joint prosthesis surgery and bring longer-term health benefits to patients.

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Section: Metal Materialsmentioning

confidence: 99%

Material selection and long-term maintenance strategy of knee and hip prosthesis

2024

AJMHS

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Study of Physicochemical and Biological Properties of UHMWPE Joint Implant With Ti, Ta, and Zr Thin Films

Dotta Maddalozzo,

Della Giustina,

Zorzi

et al. 2024

J of Applied Polymer Sci

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This study aimed to improve the surface of polymer implants by examining the physicochemical and biological properties of UHMWPE coated with titanium, tantalum, and zirconium thin films. The coatings exhibited enhancements in wettability alongside diminished roughness. The Zr film exhibited a contact angle of 16°, a significant improvement compared to the UHMWPE sample, which has an angle of 102°. Moreover, the roughness of the pristine sample (0.958 μm) was substantially reduced to 0.403 μm with the Ta film. These characteristics prevented the adhesion of fibroblasts, minimizing the risk of fibrous encapsulation surrounding the implant [2]. Micro‐abrasion tests demonstrated that the coatings reduced the wear coefficient, making them ideal for increasing the longevity of the implant in the human body. Transitioning from a wear coefficient of 0.47 × 10–12 m2/N for UHMWPE, values as low as 0.21 × 10–12 m2/N were attained, particularly in the sample with the Ti film. Therefore, the coatings exhibit favorable characteristics for the intended biomedical application.

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Textured UHMWPE surface to reduce the wear of a knee prosthesis

Cited by 2 publications

References 0 publications

Material selection and long-term maintenance strategy of knee and hip prosthesis

Material selection and long-term maintenance strategy of knee and hip prosthesis

Study of Physicochemical and Biological Properties of UHMWPE Joint Implant With Ti, Ta, and Zr Thin Films

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