title: Pisiform impingement after total wrist arthroplasty.
abstract: We present a 64-year-old woman with rheumatoid arthritis who developed increasing pain 3 years after a total wrist arthroplasty. The pain was localized over the ulnar side of the wrist secondary to erosion of the pisiform. Pisiform excision resulted in a resolution of the symptoms. When placing a carpal component, which includes a base plate as part of its design, care should be taken to avoid any overhang of the implant edge into the pisotriquetral joint.
authors.affiliation: Department of Orthopaedics, Brown Medical School, Rhode Island Hospital, Providence, RI, USA.
authors.forename: Sean T
authors.initials: ST
authors.lastname: Johnson
authors.forename: Amar
authors.initials: A
authors.lastname: Patel
authors.forename: Ryan P
authors.initials: RP
authors.lastname: Calfee
authors.forename: Arnold-Peter C
authors.initials: AP
authors.lastname: Weiss
mesh_terms: D001172:Arthritis, Rheumatoid; D019643:Arthroplasty, Replacement / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008875:Middle Aged; D051220:Pisiform Bone / Q000293:injuries* / Q000601:surgery; D019736:Prostheses and Implants; D014955:Wrist Joint / Q000601:surgery*