Long-term results of cementless anatomic total hip replacement in dysplastic hips

Abstract

This perspective study analyzes the long-term outcomes of cementless anatomic total hip arthroplasty (THA) in patients with developmental dysplasia of the hip (DDH). Between 1990 and 2004, 100 ABG total hip prosthesis were implanted in 87 patients with DDH. The average follow-up was 9 years (range 4-18 years). The mean Harris Hip Score was 87.13 (SD = 14.6) at the last follow-up. Radiographic analysis showed good results for the stems, while in 38% of the hips we recorded periacetabular bone resorption. Mean linear polyethylene wear was 0.23 mm/year. Ten revisions have been performed, survival rate was 99% for the stems and 90% for the cups. Cementless THA with hemispherical cup and anatomical stem is recommended when possible for patients with DDH although high rates of polyethylene wear and subsequent osteolysis have been the limiting factor in the long-term success of this implant.

The Use of a Cementless Tapered Stem in Young Patients Affected of Secondary Hip Arthritis

“…Our results are consistent with other previous published studies both in short and long terms [7][8][9][10][11][12][13].…”

The young osteoarthritic hip

“…We did not observe extensive acetabular osteolysis with cemented socket fixation, which is a well-reported observation around cementless cups (Bruzzone et al 2009, della Valle et al 2009. the use of an all-polyethylene cup enables the use of thicker polyethylene in these patients who all have small acetabula; this may further reduce the incidence of polyethylene wear.…”

Total hip replacement with an uncemented Wagner cone stem for patients with congenital hip dysplasia

“…Bruzzone et al [19] reported a retrospective evaluation of 87 patients who were operated upon using the ABG total hip prosthesis with a 99% survival rate for the stem and 90% for the cup. Baker et al [20] also presented good results with this stem, although there was a 17% rate of periacetabular osteolysis at 15 years.…”