Long-term results and loosening analysis of de la Caffinière replacements of the trapeziometacarpal joint.

The results of 77 de la Caffinière arthroplasties for osteoarthritis of the thumb carpometacarpal joint were reviewed. The mean follow-up period was 8.5 years (range, 2-16 years). The survival rate at 16 years was 72%. Clinical and subjective scores were good in primary implants, reasonable in revisions, and poor in salvage procedures. The total loosening rate was 44%. Half of the loosening cases led to revision; the other half had good results. Loosening occurred significantly more often in men and younger women. The use of this prosthesis is only advised for women, preferably those older than 60 years.