title: Scaphotrapeziotrapezoid joint arthritis: a pilot study of treatment with the scaphoid trapezium pyrocarbon implant.
abstract: Isolated scaphotrapeziotrapezoid osteoarthritis is rare but can cause weakness and wrist pain. We present the results of a pilot study of interposition arthoplasty with a scaphoid trapezium pyrocarbon implant (STPI) by an open and arthroscopic approach for this problem. We performed this procedure in 10 hands in eight patients, all women, with a mean age of 60.5 (range 51-70) years. The average follow-up was 19 (range 2-24) months. Pre-operative X-rays in all cases identified an isolated degenerative arthritis of the scaphotrapeziotrapezoid joint. Average DASH evaluation pre-operatively of 49 was reduced to 39. All of the patients had functional improvement and returned to daily activities after 3 months. The results of this pilot study suggest that the STPI may prove a useful compromise treatment for this problem.
authors.affiliation: Hand Surgery Unit, Multimedica Group, Plastic Surgery Department, University of Milan, Milan, Italy. lorispegoli@hotmail.com
authors.forename: L
authors.initials: L
authors.lastname: Pegoli
authors.forename: I P
authors.initials: IP
authors.lastname: Zorli
authors.forename: G
authors.initials: G
authors.lastname: Pivato
authors.forename: G
authors.initials: G
authors.lastname: Berto
authors.forename: G
authors.initials: G
authors.lastname: Pajardi
mesh_terms: D000368:Aged; D001178:Arthroplasty / Q000379:methods; D001672:Biocompatible Materials; D002244:Carbon; D050824:Carpal Joints / Q000503:physiopathology / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D018737:Hand Strength / Q000502:physiology; D006801:Humans; D007595:Joint Prosthesis; D008875:Middle Aged; D010003:Osteoarthritis / Q000503:physiopathology / Q000601:surgery*; D010147:Pain Measurement; D010865:Pilot Projects; D011446:Prospective Studies; D021361:Scaphoid Bone / Q000503:physiopathology / Q000601:surgery*; D051222:Trapezium Bone / Q000503:physiopathology / Q000601:surgery*; D051223:Trapezoid Bone / Q000503:physiopathology / Q000601:surgery*; D016896:Treatment Outcome
chemical_list: D001672:Biocompatible Materials; C009139:pyrolytic carbon; D002244:Carbon