A case report in the NEJM details how a 56-year-old woman suffered severe cobalt poisoning due to the premature failure of a hip replacement implant installed 20 years ago. The disintegrating metal prosthesis caused systemic toxicity, leading to neurological deficits, cognitive issues, and cardiac symptoms that were initially misdiagnosed. This highlights the rare but serious risk of long-term metal ion release from worn joint implants.
Background
Metal-on-metal hip replacements and other orthopedic implants can degrade over time, potentially releasing metal ions like cobalt and chromium into the bloodstream. While modern implants are designed to last decades, unexpected failures can occur, leading to systemic health complications.
- Source
- Ars Technica
- Published
- Jul 2, 2026 at 10:04 PM
- Score
- 7.0 / 10