Surgical treatment of dislocation following total hip replacement

The aim of the research was to develop a technique that improves the results of surgical treatment of dislocations of the femoral head component of the hip endoprosthesis.Materials and methods: The study included 64 patients who suffered from head dislocation after hip arthroplasty. For the treatment of patients of the first group, a technique was used in which the installation and fixation of the anti-luxation ring (“visor”) was performed screws to the existing cup or polyethylene insert of the endoprosthesis, which leads to the closure of the spherical head of the endoprosthesis in the pelvic component, which makes it impossible to separate them, thereby preventing dislocation of the endoprosthesis head for a long time. Patients of the second group were treated with other surgical methods.Results and conclusion: Patients of the two groups were followed up for 24 months after the revision surgery. In the first group (26 patients), 2 cases of complications occurred - relapse of dislocation (7.7%). In the second group(38 patients), repeated dislocation occurred in 6 (15.8%); in one case, fubular neuritis occurred.The developed technology, in which the device is fixed to the already installed parts of the endoprosthesis, will avoid a larger volume of surgery associated with the removal of well-fixed components of the endoprosthesis. If the surgeon, during a revision operation associated with dislocation of the head of the endoprosthesis, considers it possible to preserve the stably fixed components of the endoprosthesis, the method of choice may be the use of the proposed anti-luxation device.