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Psoriasis vulgaris caused by ceramic inserts used in total hip replacement
Fujio Higuchi1, Daisuke Tsuruta, Yumiko Ishibashi
1Department of Orthopedic Surgery, Kurume University Medical Center.
Background:
Ceramics are inorganic nonmetallic materials and are used as bioinert components in joint replacement surgeries. Ceramics are known to be low allergenic. We experienced a ceramic-induced psoriasis.
Objective:
We report a first case of possible ceramic-induced psoriasis caused by a ceramic insert.
Methods:
A 55-year-old female received an implanted ceramic-on-ceramic total hip replacement for osteoarthritis of the right hip joint. Following surgery, she developed psoriatic lesions, which continued for 10 years. We suspected that psoriasis was caused by a ceramic insert and removed it surgically.
Results:
When the ceramic insert was replaced with a polyethylene-on-metal hip joint, the psoriatic lesions completely disappeared.
Conclusion:
The pathogenesis of psoriasis is still an enigma, although deregulation of nuclear factor κB signaling and resulting abnormal cytokine secretion are speculated to be involved. Ceramics may affect these signaling events and cause the onset of psoriasis.
