Pi2 Spacer Pyrocarbon Arthroplasty Technique for Thumb Basal Joint OsteoarthritisBellemère, Philippe MD; Ardouin, Ludovic MDTechniques in Hand & Upper Extremity Surgery: December 2011 - Volume 15 - Issue 4 - p 247–252 doi: 10.1097/BTH.0b013e318220dc17 Techniques Abstract Author Information Trapeziectomy associated with a pyrocarbon implant is a recent procedure for thumb basal joint osteoarthritis. The investigators report Pi2 pyrocarbon implant technique (Tornier Bioprofile, Grenoble, France) for primary thumb basal joint osteoarthritis. The key points of the procedure are preservation of the soft tissue environment during the trapeziectomy, partial trapezoidectomy to medialize the implant, and careful capsuloplasty and ligamentoplasty to stabilize the implant. Nantes Assistance Main, Clinique Jeanne D'Arc, Nantes, France Conflicts of Interest: Philippe Bellemère has consultant agreement with Tornier Bioprofile (Grenoble, France). The other author report no conflict of interest. Address correspondence and reprint requests to Philippe Bellemère, MD, Nantes Assistance Main, Clinique Jeanne D'Arc, 21 rue des Martyrs, 44100 Nantes, France. e-mail: firstname.lastname@example.org. © 2011 Lippincott Williams & Wilkins, Inc.