Inclusion Criteriria:

Patients of the study the results of which are reported in the following article: DOI: 10.3109/2000656X.2012.669202

Symptomatic end- stage inflammatory arthritis of the trapeziometacarpal joint

Trapeziometacarpal arthroplasty at Rheumatism Foundation Hospital, Heinola between january 2004 and december 2005

Signed written informed consent

Poly-L/D-lactide Implant (RegJoint) Versus Tendon Interposition for Trapeziometacarpal Inflammatory Arthritis: a 15-year Follow-up