CLASSIFICATION OF POSTTRAUMATIC DEFECTS AND DEFORMATIONS OF THE ACETABULUM. LITERATURE REVIEW
The purpose of study was to analyze publications, devoted to the description and classification of posttraumatic acetabulum bone loosening. To carry out the analysis, a search was conducted for publications devoted to classifications of acetabulum defects, 40 publications with a search depth of 30 years were analyzed. Only full-text articles in Russian and English were considered. In most of the analyzed sources, the authors used classification systems for planning revision total hip arthroplasty based only on planar X-ray scans, which does not allow to describe in detail the pathological changes of the acetabulum. To date, the most commonly used classification remains the W.G. Paprosky classification, despite its limitations, this classification has many advantages, including its wide distribution, ease of use, as well as reasonable reliability and validity. The classification of the American Academy of Orthopedic Surgeons (AAOS), which is also one of the most common, has high validity, but, this classification does not allow to determine with high accuracy the tactics of defect replacement and the technique of implantation of the acetabular implant. The creation of new classifications, such as the ASPID classification, which include a more detailed description of defects, can further contribute to more thorough preoperative planning for patients with acetabulum bone loosening. For a clearer understanding and description of periacetabular bone loss, a thorough approach to the description of defects at the stage of preoperative planning is necessary.