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One of the most common causes of revision hip arthroplasty is aseptic instability of the primary implant. The acetabular component of the implant is less stable, even if fixed with bone cement. Two merits of cemented replacement are important for practical activity of an orthopaediс surgeon: its need for elderly patients and its low cost. In this regard, it is important to predict aseptic instability of the acetabular component and increase its survival by improving the methods of cemented fixation. Purpose To develop a method of predicting the probability of revision hip arthroplasty with replacement of the acetabular component. Materials and methods We studied 102 patients who underwent total cemented hip arthroplasty. Six clinical and radiological criteria were identified associated with revision after 10 years using a multifactorial pathometric analysis. Results A system was developed that allows integral calculation of the probability of revision hip arthroplasty with replacement of only the acetabulum component. The retrospective analysis confirmed the prognosis in 83.3 % of clinical cases. Conclusion The method proposed for prediction allows for a differentiated approach to cemented fixation of the acetabular component in primary arthroplasty, minimizing the probability of revision in 10 years.

Prediction of the probability of revision hip arthroplasty with replacement of the acetabular component depending on the type of its cement fixation