Total Hip Arthroplasty in Adults with Legg-Calvé-Perthes Disease
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Abstract
Materials and Methods: We conducted a retrospective study reviewing all THA surgeries from 2008 to December 2021. We studied the preoperative radiographs, determining the aetiology of the osteoarthritis, laterality, sex and age of the patient at the time of surgery.
Results: We reviewed a total of 1103 hips in 935 patients. Primary hip osteoarthritis accounted for 81% of the cases. We gathered a total of 11 hips from 10 individuals (1%), with a mean age of 61 years, for hip osteoarthritis secondary to LCPD.
Conclusions: There is evidence that femoro-acetabular impingement (FAI), which results in early secondary hip osteoarthritis, may be influenced by changes in the growth of the proximal femoral physis or overgrowth of the greater trochanter, which are characteristics of LCPD. We believe that certain cases of “misclassified” primary hip osteoarthritis may have been incorrectly identified since no additional information was found to support the diagnosis of secondary hip osteoarthritis, hiding the potential of an alternate, evolved aetiology. Furthermore, we suggest monitoring young patients with LCPD after their growth is complete in order to detect early FAI and provide arthroscopic therapeutic options.
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