Short-and medium-term results after THA with a cementless anatomic stem SP-CL (W. LINK, GERMANY)

Abstract

Since the 80s-90s of the XX century, in connection with the development of technologies, the progress of tribology, innovations in the design of prostheses and the accumulation of more clinical experience, TH arthroplasty has been "rejuvenated" and began to be more widely and successfully applied in middle-aged and young patients. The main indications at the beginning - dysplasia of the hip joint, A.V.N. and juvenile rheumatoid arthritis - subsequently expanded to the whole spectrum of hip pathology in younger people. Straight cementless stems show excellent long-term results, but periprosthetic fractures and gluteal insufficiency are still a problem. In contrast, the flattened proximal-lateral profile of the anatomic cementless SP-CL® stem can protect the greater trochanter and can avoid gluteal insufficiency after THA. Another advantage of this stem design is the rotational stability and natural weight distribution due to the anatomical concept. In this context, we report here our experience with the use of the SP-CL® anatomical cementless stem.