title: Conical, radiographic, and patient-reported results of surface replacing proximal interphalangeal joint arthroplasty of the hand.
abstract: The purpose of this study was to evaluate the one-year clinical, radiologic and patient-reported results of surface-replacing proximal interphalangeal joint arthroplasty (SR-PIP) of the hand. Fifteen patients with 18 joints underwent the procedure, and nine patients with 11 joints had follow-up of at least one year's duration. Of these joints, six had a diagnosis of osteoarthritis with no history of trauma, three had post-traumatic arthritis, one had psoriatic arthritis, and one had erosive arthritis. The mean clinical follow-up was at 3.3 years, and the mean radiographic follow-up was at 3.1 years. The average post-operative gain in range of motion at the PIP joint was 28 degrees and was statistically significant. Six patients completed self-reported questionnaires at a mean of 4.8 years post-operatively. The mean Disabilities of the Arm, Shoulder and Hand (DASH) score post-operatively was 17, and the Michigan Hand Questionnaire (MHQ) score for overall satisfaction was 70. There were three complications but only one reoperation. Seven of 11 joints showed some evidence of subsidence on follow-up radiographic examination. However, no joints were revised secondary to loosening. Longer follow-up is needed to determine if this observable radiologic subsidence leads to symptomatic loosening of the implant.
authors.affiliation: Mission Bay Ortho Institute, San Francisco, CA, USA.
authors.forename: Mohana
authors.initials: M
authors.lastname: Amirtharajah
authors.forename: Duretti
authors.initials: D
authors.lastname: Fufa
authors.forename: Nina
authors.initials: N
authors.lastname: Lightdale
authors.forename: Andew
authors.initials: A
authors.lastname: Weiland
mesh_terms: D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000000981:diagnostic imaging / Q000601:surgery; D050806:Arthroplasty, Replacement, Finger / Q000379:methods*; D005260:Female; D005383:Finger Injuries / Q000000981:diagnostic imaging / Q000601:surgery*; D005384:Finger Joint / Q000000981:diagnostic imaging / Q000601:surgery*; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000000981:diagnostic imaging / Q000601:surgery*; D011183:Postoperative Complications / Q000000981:diagnostic imaging; D019736:Prostheses and Implants; D011859:Radiography; D012189:Retrospective Studies; D057566:Self Report; D011795:Surveys and Questionnaires; D016896:Treatment Outcome; D055815:Young Adult
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