Bone reaction to silicone metatarsophalangeal joint-1 hemiprosthesis
Verhaar, J.; Vermeulen, A.; Bulstra, S.; Walenkamp, G.
Clinical Orthopaedics and Related Research 245: 228-232
1989
ISSN/ISBN: 0009-921X PMID: 2752627 Document Number: 333276
The incidence of inflammatory response to silicone implants in the first metatarsophalangeal joint was investigated. In 34 of 59 silicone arthroplasties, cysts were noticed in the proximal phalanx after a mean follow-up period of 59 months. In the metatarsal head, cysts were seen in 40 cases. Histologic examination showed that the cysts were filled with an avascular cellular stroma containing histiocytes and multinucleated giant cells, opsonizing wear debris of the prosthesis. Because of this destructive process, caution is advised when using silicone prostheses in young, active people.