Metal Hypersensitivity in Joint Arthroplasty.

Area of Science:

• Orthopedic Surgery
• Immunology
• Biomaterials Science

Background:

• Metal hypersensitivity is a controversial complication in joint arthroplasty.
• Increasing joint replacement rates necessitate understanding metal sensitivity.
• Limited evidence exists on pathogenesis, diagnosis, and management.

Purpose of the Study:

• To review existing evidence on metal hypersensitivity in joint arthroplasty.
• To summarize key findings on the topic.
• To propose a practical algorithm for clinical use.

Main Methods:

• Comprehensive literature search on metal hypersensitivity and joint arthroplasty.
• Synthesis of evidence regarding pathogenesis, clinical presentation, and diagnostic methods.
• Development of a clinical algorithm for screening, workup, and management.

Main Results:

• Metal hypersensitivity in joint arthroplasty remains poorly understood.
• Evidence on diagnostic accuracy and treatment efficacy is limited.
• A proposed algorithm addresses preimplant screening, postimplant evaluation, and treatment.

Conclusions:

• Further research is needed to clarify the role of metal hypersensitivity.
• Standardized diagnostic and management protocols are essential.
• The proposed algorithm can guide clinicians in managing suspected cases.