Causes of total hip replacement in children: part 1

Background. Total hip arthroplasty (THA) is one of the most frequently performed and effective surgical procedures in patients with hip osteoarthritis of various origin. According to a variety of large arthroplasty registries, in 10-33% of cases, the causes of end-stage hip osteoarthritis in people under the age of 25 are such orthopedic diseases of the hip as dysplasia, SCFE and Perthes disease. However, there are practically no scientific publications examining the causes of the development of end-stage hip osteoarthritis in patients under the age of 21, as well as in children, in the foreign literature and there are none at all in the domestic literature. The aim of the study is to analyze the causes of the development of end-stage hip osteoarthritis requiring total hip arthropasty in children who had suffered major orthopedic diseases of the hip. Methods. The retrospective study is based on the medical records of 500 patients (530 hip joints) aged between 10 and 18 years (15.1±1.5) who had underwent total hip replacement at the Department of Hip Pathology of the G.I. Turner National Research Medical Center for Pediatric Traumatology and Orthopedics, in the period from 2008 to 2023. The main subject of the study was the anamnesis of the course of the orthopedic disease and previous treatment. Results. After studying the medical records and archival X-rays, we have identified the main diagnostic and tactical errors in the treatment of patients with major diseases of the hip, which are specific to childhood. Additionally, according to these nosological entities we have identified the most “endemic” federal regions and subjects of the Russian Federation. Conclusions. The main causes of the development of end-stage hip osteoarthritis requiring total hip arthroplasty in patients under the age of 18 with major orthopedic diseases of the hip are: diagnostic defects, methodological choice of both conservative and surgical treatment, and iatrogenic damage to the joint components.