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Surgical Treatment of Rectocele as the Most Common Cause of Rectal Voiding Disturbances. Own Experience with the Use of Prosthetic Material

100%

Kościński T. , Stadnik H.

Polish Journal of Surgery

2010

tom 82

nr 10

556-563

The aim of the study was to present different methods of reconstruction in case of rectovaginal septum defects, considering female patients with impaired colorectal voiding.Material and methods. During the period between 2001 and 2010, 39 female patients, aged between 42 and 75 years (mean age-58 years) were subject to surgical intervention. Patients complained of voiding disturbances, sensation of a "mass" in the pelvis (64.1%), dyspareunia (30.8%), anal sphincter insufficiency (17.9%) and urinary incontinence (10.3%).Defecography and MRI examinations confirmed rectocele (100%), enterocele (46.6%), pelvic floor prolapse (35.9%), vaginal prolapse (30.8%), and rectal prolapse (25.6%).Considering the surgical treatment of rectocele the following prosthetic material was used: polypropylene mesh and collagen implants (Pelvicol ®). In case of 19 patients with low rectocele the transvaginal approach was used. In case of high rectocele and coexisting pelvic organ prolapse the mesh was implanted by means of laparotomy (12 pts) or the abdomino-vaginal approach (8 pts).Results. Permanent reconstruction of the rectovaginal septum and withdrawal of voiding disturbances was observed in all patients operated by means of the transvaginal approach. Dyschesia symptoms were present in 16.6% of patients after mesh implantation by means of laparotomy, and in 12.5% of patients after the abdomino-vaginal approach. 10.3% of patients complained of pelvic pain and rectal tenesmus. All the above-mentioned symptoms were observed after polypropylene mesh implantation. The percentage of reoperations, due to complications amounted to 17.9%. Insignificant erosion of the prosthetic material was diagnosed in 7.7% of patients. 94.6% of patients were satisfied with the proposed treatment.Conclusions. The use of prosthetic material in the treatment of pelvic floor anatomical defects is an effective and safe method, considering patients with colorectal voiding disturbances.

Structural and thermal properties of polypropylene mesh used in treatment of stress urinary incontinence

75%

Afonso J. S. , Jorge R. M. N. , Martins P. S. , Soldi M. d. S. , Alves O. L. , Patricio B. , Mascarenhas T. , Sartori M. G. F. , Girao M. J. B.

Acta of Bioengineering and Biomechanics

2009

tom Vol. 11, nr 3

27-33

Besides material biocompatibility, it is possible to infer that both vaginal and urethral erosion rates associated with sub-urethral synthetic slings may be related to the mechanical properties of the meshes and also to their other properties. With the aim of understanding what distinguishes the different polypropylene meshes, used for the treatment of the stress urinary incontinence (SUI), their structural and thermal properties were investigated. Five different mesh types were tested (Artis™, Auto Suture™, Avaulta™, TVTO™ and Uretex™). Differential scanning calorimetry (DSC) and infrared spectroscopy (FTIR) tests were performed. Furthermore, geometry (electron microscope), linear density and relative density (pyknometer) of the meshes were investigated. The meshes are made of the isotactic polypropylene homopolymer. Artis™ mesh presented the smallest fibre diameter, linear density and the level of crystallinity among all the meshes used for the treatment of the SUI. This study shows that there is a direct relationship between the fibre diameter, linear density, level of crystallinity and flexural stiffness of the polypropylene meshes used for the treatment of the SUI.