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Revision of infected total hip arthroplasty
Abstract:
Extension of infection down the medulla of the femur to the supracondylar region may occur in cases of chronic infected total hip arthroplasty. Because this cannot always be identified before operation, the femur should be reamed and flushed proximally from the lateral condyle in all cases where there is suspicion of infection around the femoral component. Where infection is unequivocal and extensive, a period of irrigation and suction drainage is advisable before final total hip arthroplasty. After the prosthesis has been inserted in either one or two stages, it is wise not to rely on antibiotic cement mixtures alone but to monitor the bacterial flora and prescribe local antibiotic therapy accordingly.
Insights
In chronic infected total hip arthroplasty, femur reaming and flushing are crucial. Prompt irrigation and suction drainage, followed by tailored antibiotic therapy, improve outcomes for extensive infections.
Area of Science:
- Orthopedic Surgery
- Infectious Disease
- Biomaterials Science
Background:
- Chronic infected total hip arthroplasty (THA) can lead to deep femoral infection extending to the supracondylar region.
- Preoperative identification of medullary extension is often challenging.
- Managing periprosthetic joint infections requires a thorough understanding of infection pathways.
Purpose of the Study:
- To outline surgical strategies for managing suspected or confirmed femoral medullary extension in infected THA.
- To emphasize the importance of intraoperative procedures for infection control.
- To guide postoperative antibiotic management based on bacterial surveillance.
Main Methods:
- Recommend proximal femoral reaming and flushing from the lateral condyle in all suspected cases.
- Advocate for a period of irrigation and suction drainage for extensive, unequivocal infections prior to revision THA.
- Suggest monitoring bacterial flora and tailoring local antibiotic therapy post-prosthesis insertion.
Main Results:
- Surgical debridement and irrigation techniques aim to reduce bacterial load.
- Staged or one-stage revision THA protocols are employed based on infection severity.
- Postoperative antibiotic management is critical for eradicating residual infection.
Conclusions:
- Prophylactic femoral reaming and flushing are essential when infection is suspected in THA.
- A dedicated irrigation and drainage period is beneficial for severe infections before definitive arthroplasty.
- Post-revision THA care should include vigilant bacterial monitoring and targeted antibiotic therapy.