AI Article Synopsis
- A study reviewed long-term data from 210 patients with idiopathic hip osteoarthritis, focusing on 272 hips.
- Of these hips, 80% were categorized as eccentric, where the femoral head shifted due to rapid degenerative changes, leading to total hip arthroplasty (THA) about 4 years after symptoms began.
- In contrast, the 20% of hips that were concentric experienced slower degeneration and required THA approximately 10 years after symptom onset.
Article Abstract
Long-term clinical and radiographic data of 210 patients (272 hips) with idiopathic hip osteoarthritis were reviewed. Of the 272 hips, 218 (80%) were eccentric and 54 (20%) were concentric. In eccentric hips, the femoral head migrated superolaterally or superomedially, because of the eccentric development of the degenerative changes, which had deteriorated rapidly. Hips with eccentric idiopathic osteoarthritis underwent total hip arthroplasty (THA) at an average of 4 years after symptom onset. In concentric hips, the femoral head migrated medially, causing progressive thinning of the medial wall of the acetabulum, and degenerative changes progressed slowly. Hips with concentric idiopathic osteoarthritis underwent THA at an average of 10 years after symptom onset.
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| http://dx.doi.org/10.3928/0147-7447-20030201-18 | DOI Listing |
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