The incidence of knee arthroplasty for primary osteoarthritis grows rapidly among baby boomers: a population-based study in Finland.

Objective: Total knee arthroplasty (TKA) is a commonly used treatment for severe primary knee osteoarthritis (OA) that is refractory to conservative treatment. Despite the presumed increase in the use of this treatment modality in younger patients, there are few published data concerning this. The aim of our study was to examine the changes in the age- and sex-standardized incidence of TKA and unicondylar knee arthroplasty (UKA) in Finland during 1980-2006 and to identify factors that might affect the incidence during this period.

Results of 3,668 primary total hip replacements for primary osteoarthritis in patients under the age of 55 years.

Background And Purpose: In a previous study based on the Finnish Arthroplasty Register, the survival of cementless stems was better than that of cemented stems in younger patients. However, the survival of cementless cups was poor due to osteolysis. In the present study, we analyzed population-based survival rates of the cemented and cementless total hip replacements in patients under the age of 55 years with primary osteoarthritis in Finland.

Cemented versus cementless total hip replacements in patients fifty-five years of age or older with rheumatoid arthritis.

Background: results obtained from single-center studies indicate that a cemented total hip replacement is the treatment of choice for the management of patients over fifty-five years of age with rheumatoid arthritis. The aim of this study was to analyze population-based survival rates for cemented and cementless total hip replacements in patients aged fifty-five years or over with rheumatoid arthritis in Finland.

Methods: between 1980 and 2006, a total of 6000 primary total hip replacements performed for the management of rheumatoid arthritis in patients who were fifty-five years of age or older were entered in the Finnish Arthroplasty Registry.

Mid-term results for three contemporary total knee replacement designs - a comparative study of 104 patients with primary osteoarthritis.

Aims: The purpose of this study was to compare retrospectively the mid-term clinical and radiological results of three contemporary knee designs in cohorts operated on in the same hospital during the same time period.

Materials And Methods: We evaluated mid-term clinical and radiographic outcome of three contemporary total knee designs (the AGC V2, the Duracon and the Nexgen) in 104 consecutive patients (129 knees) operate on for primary knee osteoarthritis at our hospital. The mean indexed age at the time of the operation was 69.

Early results of 827 trabecular metal revision shells in acetabular revision.

We evaluated the survival of 827 acetabular revisions with Trabecular Metal Revision Shell using data from a nationwide arthroplasty register. The mean age of the patients was 69.1 years.