Cemented Lubinus and Furlog total hip endoprosthesis: a 12-year follow-up study of 175 hips comparing the cementing technique.

We analyzed 175 total hip replacements with cemented Lubinus and Furlong arthroplasties in 164 patients with a median age of 65 (32-80) years and followed them for 12 years to evaluate and compare the efficacy of total hip prosthesis designs. Survival analysis was combined with an analysis of radiological findings and a study of functional outcome of the patients. The 12-year survival of Furlong arthroplasty in patients of 60 years of age and older was O.85 (95% CI 1.00-0.52). The survival of Lubinus arthroplasty in patients younger than 60 years of age was 0.70 (0.91-0.48), while the survival in older patients was 0.75 (0.89-0.61). The 12-year survival of well-cemented Lubinus prosthesis was 0.91 (1.00-0.79), indicating the importance of the cementing technique. The survival of the cups was marginally better than that of the stems. In the 12-year follow-up study, the clinical state and function varied from hips ready for revision to hips where a continuously long survival could be predicted. Harris hip score did not differentiate between patients who had intact and loose components. We conclude that cemented arthroplasty affords a notable alternative with satisfactory long-term survival and function. The better survival of cemented cup than the stem may be utilized as a basis for "reverse" hybrid arthroplasty. Adequate long-term follow-up of all arthroplasties as a quality maintenance and to prevent difficult revisions is a major challenge.