RESUMO
When the hip joint is replaced by an artificial one, not infrequently a cavity is formed round the neck of the endoprosthesis which is impossible to be covered with local tissues. It is possible to eliminate such a cavity and prevent the formation of a hematoma by myoplasty. Taking into consideration the peculiarities of vascularization and topography of the muscles situated near the hip joint, several versions of myoplasty of the cavity have been worked out which are used in accordance with its size and localization in relation to the neck of endoprosthesis. Evacuation of the hematoma took place in 3 cases of the total number of 97 operations employing myoplasty, while it was performed in 13 cases of 190 operations without myoplasty. Therefore myoplasty involving musculus gluteus minimus, musculus gluteus medius, musculus rectus femoris and musculus vastus externus, with regard to the size and the localization of the cavity is reliable means of preventing hematoma in case of cavity formation near the neck of the endoprosthesis after the implantation of an artificial hip joint.
