title: Development of a surface replacement arthroplasty for proximal interphalangeal joints.
abstract: Sixty-six surface replacement proximal interphalangeal prostheses with a CrCo proximal and an ultrahigh-molecular-weight polyethylene distal component were used in the hands of 47 patients (mean age, 58 years) over a 14-year period. There were 37 fingers with degenerative arthrosis, 16 with traumatic arthrosis, and 13 with rheumatoid arthritis. The mean follow-up period was 4.5 years (range, 1-14 years). The results based on pain relief, motion, and deformity were good in 32 fingers, fair in 19, and poor in 15. Poor results occurred primarily in fingers with previous extensive injury or static deformity. Results with a dorsal approach were better than those with a lateral or palmar approach. Component loosening at the bone-cement junction beyond a minimal radiolucent line was seen in one late x-ray. Results in individuals changed little after the first year of follow-up care, but results overall improved during the course of the study, perhaps because of improvements in surgical technique and experience.
authors.affiliation: Department of Orthopedics, Mayo Clinic, Rochester, MN 55905, USA.
authors.forename: R L
authors.initials: RL
authors.lastname: Linscheid
authors.forename: P M
authors.initials: PM
authors.lastname: Murray
authors.forename: M A
authors.initials: MA
authors.lastname: Vidal
authors.forename: R D
authors.initials: RD
authors.lastname: Beckenbaugh
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001168:Arthritis / Q000601:surgery; D001843:Bone Cements; D002858:Chromium Alloys; D005383:Finger Injuries / Q000150:complications; D005384:Finger Joint / Q000000981:diagnostic imaging / Q000601:surgery*; D005500:Follow-Up Studies; D006227:Hand Deformities, Acquired / Q000601:surgery; D006801:Humans; D007592:Joint Diseases / Q000209:etiology / Q000601:surgery; D007595:Joint Prosthesis / Q000009:adverse effects; D008875:Middle Aged; D008970:Molecular Weight; D016348:Osseointegration; D010003:Osteoarthritis / Q000601:surgery; D010146:Pain / Q000601:surgery; D017060:Patient Satisfaction; D011095:Polyethylenes; D011474:Prosthesis Design; D011475:Prosthesis Failure; D011859:Radiography; D016059:Range of Motion, Articular; D012008:Recurrence; D013499:Surface Properties; D016896:Treatment Outcome
chemical_list: D001843:Bone Cements; D002858:Chromium Alloys; D011095:Polyethylenes