title: Early results of a prospective study on the pyrolytic carbon (pyrocarbon) Amandys® for osteoarthritis of the wrist.
abstract: BACKGROUND
  The preliminary results of a pyrocarbon interpositional radiocarpal implant in a small cohort of patients were reviewed. As it is currently only a limited release product, we describe to potential users early complications and negative outcomes.
  
  
  METHODS
  Patients were  assessed using pain levels, ranges of motion, grip strength, type of and time to return to work as well as pre-operative and post-operative DASH (Disabilities of the Arm, Shoulder and Hand) scores. Radiographs were taken and patient satisfaction was recorded.
  
  
  RESULTS
  All six patients  were contacted. One was not satisfied. Three had reduced motion. None experienced squeaking. There were no immediate or late post-operative complications. There was one early volar displacement of an implant.
  
  
  CONCLUSIONS
  Although our early results are somewhat encouraging, further and  longer studies are warranted before supporting the use of this particular pyrocarbon implant as a primary procedure.
authors.affiliation: Oxford University Hospitals NHS Trust, UK. zubinjimmydaruwalla@rcsi.ie
authors.forename: Z J
authors.initials: ZJ
authors.lastname: Daruwalla
authors.forename: K L
authors.initials: KL
authors.lastname: Davies
authors.forename: A
authors.initials: A
authors.lastname: Shafighian
authors.forename: N R
authors.initials: NR
authors.lastname: Gillham
mesh_terms: D000328:Adult; D000368:Aged; D019643:Arthroplasty, Replacement; D001672:Biocompatible Materials; D002244:Carbon; D005260:Female; D006801:Humans; D007595:Joint Prosthesis; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000601:surgery*; D011446:Prospective Studies; D016059:Range of Motion, Articular; D016896:Treatment Outcome; D014955:Wrist Joint / Q000601:surgery*
chemical_list: D001672:Biocompatible Materials; C009139:pyrolytic carbon; D002244:Carbon