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The study objective is to compare the effectiveness and safety of using 4-and 6-arm mesh prostheses in transvaginal correction of urogenital prolapse.Materials and methods. From 2013 to 2018, 164female patients with grade II—IV prolapse of the pelvic muscles underwent surgery. Reconstruction of the pelvic floor using 4-arm prosthesis Prolift anterior was performed in 54 (33 %) patients (group 1), 6-arm prosthesis OPUR — in 110 (67 %) patients (group 2). The patients’ age varied between 45 and 76years (mean age 56.3 years). All women previously delivered children (69 % delivered 2 or more children). In 73 % patients, labor was complicated by raptured cervix and/or groin, episioto-my, fetal skull remaining stationary above the pelvic brim. In 25 % of women, grade IV cystocele was diagnosed at the time of examination, in 62 % — grade III, in 13 % — grade II; grade IVhysteroptosis was diagnosed in 12 % of women, grade III — in 54 %, grade II — in 34 %.Results. In the group 1, cystocele was corrected in 90 % of cases, hysteroptosis — in 75 %. Mean blood loss was 150.0 + 69.6 ml. Operative time varied between 60 and 169 min. In the group 2, cystocele was corrected in 100 % of cases, hysteroptosis — in 98 %. Mean blood loss was 125.0 + 59.6 ml. Operative time varied between 38 and 143 min. Women noted decreased emotional tension during sex.Conclusion. Disadvantages of 4-arm meshes include worse correction of hysteroptosis and significant complications, rate and grade of which lead to a decrease in manufacture of the prosthesis. Modern 6-arm mesh prosthesis OPUR is safer and more effective. Its construction and method of implantation were developed with the goal to eliminate the main disadvantages of 4-arm prostheses.

The case presented is a demonstrative example of dangerous complication after penile prothesis implantation. Pelvic abscess with purulent fistula was a result of incorrect three-piece implant usage. Infectious complication was caused by the reservoir of the implant. In the event of such complications is necessary to use the full range of modern methods of radiation diagnosis.