Related Experiment Video
Updated: Apr 16, 2026
Novel Diagnostics in Revision Arthroplasty: Implant Sonication and Multiplex Polymerase Chain Reaction
Published on: December 3, 2017
[Revision arthroplasty : Histopathological diagnostics in periprosthetic joint infections]
1Zentrum für Histologie, Zytologie und Molekulare Diagnostik, Max-Planck-Str. 5, 54296, Trier, Deutschland, krenn@patho-trier.de.
Background:
Histopathological differences in synovia and synovial-like interface membrane (SLIM) patterns can be used to differentiate periprosthetic particle-induced reactions, bacterial infections (bacterial synovitis and osteomyelitis), mechanical-induced tissue alterations, adverse reactions to implant material, and arthrofibrosis (SLIM consensus classification).
Aim:
Because of differences in treatment the diagnosis of a bacterial implant infection is very important. Histopathological tests and scoring systems are important diagnostic tools in identifying deep implant infections in patients with unclear clinical history as well as radiographic and laboratory studies.
Results:
Modern enzyme PCR-based methods, histochemical- and immune-histopathological techniques (CD3,CD15, CD68) are useful in identifying specific and nonspecific infections, as well as differentiating postsurgical changes from recurrent infections in patients with a spacer. In all histopathological scoring systems for bacterial infection, quantifying the number of neutrophil granulocytes in a defined number of high power fields is crucial.
Discussion:
Neutrophil granulocytes can be detected through histochemical methods and more specifically by immune-histopathological techniques and by various quantification systems (histopathological scores) leading to the diagnosis of bacterial peri-implant infection. One important function of histopathology, apart from diagnosing infection, is to rule out other mechanisms of implant failure, such as tumor infiltrations, particle-induced reactions, and adverse reactions to implant materials.
Insights
Histopathology, particularly quantifying neutrophil granulocytes, is crucial for diagnosing bacterial peri-implant infections. This method also helps rule out other implant failure causes like adverse material reactions.
Area of Science:
- Orthopedic pathology
- Infectious disease diagnostics
- Biomaterial science
Context:
- Histopathological analysis of synovial tissue and synovial-like interface membrane (SLIM) is vital for differentiating various causes of prosthetic joint failure.
- Accurate diagnosis is critical due to differing treatment strategies for conditions like bacterial infection versus mechanical wear.
Purpose:
- To highlight the importance of histopathology and scoring systems in diagnosing deep implant infections, especially in cases with ambiguous clinical presentations.
- To emphasize the role of neutrophil granulocyte quantification in identifying bacterial peri-implant infections.
Summary:
- Modern histopathological techniques, including enzyme PCR and immunohistochemistry (CD3, CD15, CD68), aid in identifying infections and distinguishing post-surgical changes.
- Quantifying neutrophil granulocytes is a key component across all histopathological scoring systems for bacterial infection.
- Immune-histopathological methods offer specific detection of neutrophil granulocytes for diagnosing bacterial peri-implant infections.
Impact:
- Establishes histopathology as a critical tool for diagnosing bacterial peri-implant infections.
- Enhances differential diagnosis by excluding other implant failure etiologies such as tumors, particle reactions, and material hypersensitivity.
- Improves patient management through precise etiological diagnosis of prosthetic joint complications.
