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Updated: Apr 6, 2026

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The Use of Mixed Reality in Custom-Made Revision Hip Arthroplasty: A First Case Report
Published on: August 4, 2022
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[Pseudotumors caused by hip prostheses].
Summary
Metal-on-metal hip replacements can cause soft tissue lesions around the joint, potentially requiring revision surgery. Awareness of these pseudotumors is crucial for patient outcomes.
Area of Science:
- Orthopedic surgery
- Biomaterials science
- Medical device technology
Context:
- Over 100,000 hip replacements performed in Finland.
- Osteoarthritis is a common indication for hip arthroplasty.
- Artificial joint surfaces utilize metal, plastic, or ceramic materials.
Purpose:
- To highlight the risks associated with metal-on-metal (MoM) hip implants.
- To inform about the development of pseudotumors and soft tissue lesions.
- To underscore the potential need for revision surgery due to implant complications.
Summary:
- Metal-on-metal (MoM) hip replacements have gained attention due to associated pseudotumors.
- Soft tissue lesions can occur around artificial hip joints, even if asymptomatic.
- These complications may necessitate further surgical intervention, known as joint revision.
Impact:
- Increased awareness of MoM implant risks among healthcare professionals and patients.
- Potential for improved patient selection and monitoring for hip replacement recipients.
- Contributes to the ongoing evaluation of biomaterials in orthopedic implants.

