Original ArticlePeriacetabular Osteotomy and Total Hip Arthroplasty in Patients Older Than 40 Years
Section snippets
Materials and Methods
The study design was a cross-sectional, cohort comparison study in patients with an underlying diagnosis of dysplasia who had undergone either PAO or total hip arthroplasty (THA). Periacetabular osteotomy cases were identified at a single hospital between 1995 and 2003. The study was granted ethical approval by the institutional review board. Inclusion criteria were a primary diagnosis of dysplasia, minimal or no osteoarthritis (Tonnis grade 0 or 1), age older than 40 years, and the potential
Results
The mean age of PAO and THA patients were 45.4 and 47.1 years, respectively (P = .2, t test). Ninety percent (25/28) of PAO patients were women compared with 88% (30/34) of THA patients (P = .9, χ2 test).
Quality-of-life outcomes are summarized in Fig. 1, Fig. 2. There were statistically significant differences in WOMAC pain and functional scores at 4 years favoring treatment with THA, as shown in Fig. 1, Fig. 2. In the pain dimension, the mean WOMAC scores (THA vs PAO) were 89.2 vs 70.9 (P <
Discussion
Periacetabular osteotomy has been shown to be an effective treatment in patients with dysplasia and minimal or no osteoarthritis 2, 10, 11. This joint-conserving operation can significantly improve patient QOL 4, 11. In patients older than 40 years, there is a controversy over the relative merits of joint-preserving surgeries such as PAO and THA. The choice of THA is becoming more attractive through improvements in bearing surfaces such as highly cross-linked polyethylene, and
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Cited by (0)
No benefits or funds were received in support of the study.