Original ArticleThe Effect of Stem Alignment on Results of Total Hip Arthroplasty with a Cementless Tapered-Wedge Femoral Component
Section snippets
Materials and Methods
We performed 106 consecutive primary THAs in 90 patients between May 1995 and December 2000. Of these, 5 patients (5 hips) died and 3 patients (3hips) were lost to follow-up monitoring; this left 82 patients (98 hips) as the subjects of our retrospective review. None of the 8 patients (6.7%) who died or were lost to follow-up monitoring had required revision of the implant.
The femoral components were a cementless CLSfemoral component (Zimmer, Winterthur, Switzerland). The CLS stem was a
Results
No femoral or acetabular component showed radiographic evidence of mechanical loosening during the course of this study, and no components had been revised as of the 5- to 11-year follow-up examination. No progression of the varus and valgus changes in component position was detected in any hip. Clinical and radiographic results were compared for the 3 groups.
There was no difference in the Harris hip scores (P=.59) and the incidence of thigh pain (P = .65) between the groups. The Harris hip
Discussion
This study shows that stem alignment of a tapered-wedge cementless CLS femoral component does not compromise clinical and radiographic results of THA at an average follow-up period of 7.7 years.
Currently, many different mini-incisions, or minimally invasive surgical approaches, are used for THA. The proposed advantages of mini-incision THA are reduced postoperative pain, faster rehabilitation, less blood loss, and less scarring. However, some researchers are concerned that mini-incision THA may
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No benefits or funds were received in support of the study.