| The incidence KLIKK of total knee arthroplasty has been doubled since the registration of knee prostheses started in 1994. In 2005, the incidence of primary TKA was 67. A slight increase is evident also in THA, (KLIKK) and the incidens was 162 in the year of 2005. The proportion of revisions to primary replacements, have been stable throughout the period. |