The failed first metatarsophalangeal joint implant arthroplasty.

Chronic pain in a first metatarsophalangeal implant arthroplasty can be early or late, and may be due to infection or implant failure. Although excisional arthroplasty can be considered, the most predictable result will come from arthrodesis. Conversion of a failed implant arthroplasty to fusion will usually require structural bone graft, with slower healing times than primary fusion.