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Updated: Jul 14, 2025
Potentiodynamic Corrosion Testing
Published on: September 4, 2016
Metallosis in Total Hip Arthroplasty
Anderson Lee1, Guy D Paiement, Brad L Penenberg
1Department of Orthopaedic Surgery, Cedars-Sinai Medical Center, Los Angeles, California.
Metallosis, a complication of total hip arthroplasty (THA), involves tissue damage from metal debris. Revision THA is often necessary to manage this condition and prevent further complications.
Area of Science:
- Orthopedic Surgery
- Biomaterials Science
Background:
- Metallosis is a rare complication following total hip arthroplasty (THA).
- It is most commonly observed in patients with metal-on-metal implants.
- Characterized by metal debris, it causes soft tissue staining, necrosis, fibrosis, and pseudotumors.
Purpose of the Study:
- To describe the characteristics, diagnosis, and management of metallosis after THA.
- To highlight the importance of early detection and intervention.
Main Methods:
- Clinical evaluation of patient symptoms.
- Imaging studies (e.g., X-ray, MRI).
- Serum metal-ion level analysis.
- Intraoperative assessment and frozen section analysis.
Main Results:
- Metallosis presents with soft tissue damage, pseudotumors, and potential osteolysis.
- Diagnosis involves a combination of clinical, imaging, and laboratory findings.
- Revision THA is frequently required for effective management.
Conclusions:
- Metallosis is a significant complication of THA requiring thorough workup.
- Prompt diagnosis and management, often involving revision surgery, are crucial to prevent progressive bone and tissue damage.
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