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Aseptic Loosening in Joint Arthroplasty

Aseptic Loosening in Total Joint Arthroplasty

Aseptic loosening is a major long-term complication of total joint arthroplasty (TJA), encompassing both total hip arthroplasty (THA) and total knee arthroplasty (TKA). This condition involves the loosening of the prosthetic implant from the bone without any signs of infection. Aseptic loosening can cause pain, instability, and functional impairment, often necessitating revision surgery1. This article delves into the mechanisms of aseptic loosening, explores diagnostic imaging techniques, and outlines treatment options.

Mechanisms of Aseptic Loosening

Aseptic loosening primarily stems from the body’s inflammatory response to wear debris generated by the implant. These particles … Read more

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Chapter 10 Inflammatory Arthritis

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This chapter delves into the complexities of inflammatory arthritis, focusing primarily on Rheumatoid Arthritis (RA) and its juvenile form, along with gout.

RA, a chronic autoimmune disease, is characterized by the immune system attacking the joint’s synovium, leading to inflammation, pain, and eventual joint destruction. The chapter explores the pathogenesis of RA, noting the involvement of T cells, cytokines, and other immune processes. It also discusses the epidemiology, revealing that RA affects roughly 1% of the US population, with a higher prevalence in women and those between 40 and 60. The clinical presentation, diagnostic imaging, and laboratory studies are also … Read more

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Chapter 7 Inflammation

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Inflammation – A Delicate Balance

This chapter delves into the complex process of inflammation, a double-edged sword in the human body. While essential for healing and defense against foreign invaders, inflammation can also become a destructive force in chronic conditions like rheumatoid arthritis.

The chapter breaks down the intricate cellular and molecular events that drive inflammation. It explores the roles of various agents, including cytokines, chemokines, and arachidonic acid metabolites, in orchestrating the inflammatory response. It also highlights the differences between acute and chronic inflammation, emphasizing the potential for long-term damage in the latter.

Key concepts include:

  • The Inflammatory Process:
… Read more
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