China
Africa
Explore chapters and articles related to this topic
Complications of Synthetic Mesh Used to Repair Pelvic Organ Prolapse
Published in Linda Cardozo, Staskin David, Textbook of Female Urology and Urogynecology - Two-Volume Set, 2017
Mickey Karram, John B. Gebhart
Pelvic orgAn prolApse (PoP) And stress Urinary incontinence Are common And often comorbid disorders in women thAt cAn greAtly impAct quality of life. PopulAtion-bAsed studies report An 11%–19% lifetime risk of women undergoing surgery for one of these conditions with A recurrence of symptoms common in both groups. six to twenty-nine percent of women who undergo A pelvic floor repAir hAve AdditionAl surgery for recurrent prolApse, stress incontinence, or relAted complicAtions [1,2]. The success initiAlly observed with the use of surgicAl mesh in generAl surgery combined with the perceived high fAilure rAtes for trAditionAl nAtive tissue suture repAirs for prolApse initiAlly led gynecologic surgeons to implement surgicAl ApproAches thAt utilize prosthetic mAteriAls. MedicAl device mAnufActurers hAve estimAted thAt in 2006 And 2007, ApproximAtely 30% of PoP repAir procedures utilized AdjuvAnt mAteriAls. However, recently, there hAve been concerns rAised Around the sAfety of trAnsvAginAl mesh due to A vAriety of outcomes relAted to mesh erosion, pAin, vAginAl constriction, And other complicAtions. While similAr types of complicAtions hAve occurred with nAtive tissue suture repAirs, the perception is thAt grAft-relAted complicAtions hAve been more severe And difficult to mAnAge. HistoricAlly, loss of pelvic floor support resulting in PoP hAs been compAred to A herniA. In 1973, Dr. stAnley birnbAum [3] described A novel technique for treAtment of vAginAl prolApse in which fixAtion of the vAginAl vAult with A teflon mesh bridge Anchored the vAginA to the hollow of the sAcrum. This wAs the initiAl description of A sAcrocolpopexy using A synthetic mAteriAl. A follow-up Article 6 yeArs lAter noted 20 of 21 pAtients treAted with this technique mAintAined good support And vAginAl function. over the lAst 15 yeArs, there hAs been A significAnt refinement And improvement in surgicAl mesh mAteriAls. eArly on, there were problems with some surgicAl meshes, which increAsed erosion And infection rAtes. In most cAses, these meshes were microporous multifilAment mAteriAls, which require complete explAntAtion for symptom improvement [4]. FortunAtely, the mAjority of these products hAve been tAken off the mArket. Currently utilized meshes Are type 1 mesh, meAning they Are mAcroporous monofilAment polypropylene
Massive non-incisional abdominal wall hernia caused by abdominal wall weakness resulting from childhood radiation therapy: a case report
Published in Case Reports in Plastic Surgery and Hand Surgery, 2022
Tatsuya Ichida, Yuki Otsuki, Koichi Ueda
There are many options for treating abdominal hernias, including suture repair, mesh repair, autologous fascia grafting, and the components separation technique. The optimal procedure is selected on the basis of the size and location of the hernial orifice, condition of the soft tissue, and other factors. Primary suturing may be appropriate when the hernia is small. However, the rate of recurrence after this procedure is reportedly 43% [6]; thus, another surgical procedure may be necessary to minimize recurrence. When the hernial orifice is large, insertion of some material is needed to close it, the surgical mesh being the most widely used. Mesh repair may be a treatment option for this case, but it may not be the best option. A partial list of mesh-related complications includes infection requiring mesh removal, mesh mechanical failure, mesh bulging, chronic pain, chronic inflammatory reaction, and mesh erosion into abdominal viscera [7]. The guidelines for laparoscopic treatment of ventral and incisional state that in many giant incisional hernias with a horizontal defect of more than 10 cm, standard open techniques and the laparoscopic intraperitoneal onlay mesh repair are insufficient [7].
Combined numerical and experimental approach to determine numerical model of abdominal scaffold
Published in Computer Methods in Biomechanics and Biomedical Engineering, 2022
Agnieszka Tomaszewska, Daniil Reznikov
This paper addresses constitutive modelling of surgical mesh, which is a complex, knitted structure. Different approaches to such material modelling are reported in the literature. Röhrnbauer et al. discussed three scales of the prosthesis modelling: global and yarn scales, and mesoscale (Röhrnbauer et al. 2014). The authors proposed mesoscale model of a mesh, however they showed an example for a single unit cell. Pierrat et al. presented a preliminary study to consider the three scales of surgical mesh modelling (Pierrat et al. 2020). The authors recommend yarn scale to apprehend local failure modes in these structures. Hernandez-Gascon et al. compared the outcomes of the global and the yarn scales and recommended the global continuum model, which provided a greater computational efficiency and a higher convenience in application into complex numerical models (Hernández-Gascón et al. 2014). Continuum model is sufficient to study global response of knitted structure. In reference to that an issue concerning continuum model of a surgical mesh is considered in this paper.
Fertility-Sparing Surgery Using Knitted TiNi Mesh Implants and Sentinel Lymph Nodes: A 10-Year Experience
Published in Journal of Investigative Surgery, 2021
Alena Chernyshova, Larisa Kolomiets, Timofey Chekalkin, Vladimir Chernov, Ivan Sinilkin, Victor Gunther, Ekaterina Marchenko, Gulsharat Baigonakova, Ji Hoon Kang
With regard to the strict specs of RT, a versatile prosthetic mesh should mimic the anisotropic compliance of the low uterine segment, demonstrating higher distensibility at lower loads without impairment of mechanical response at higher loads. Unfortunately, the mimic behavior of marketed meshes diverges from that shown by the host tissue. Notably, this can elucidate the noncoincidence in terms of stress-strain behavior between the surrounding tissue and surgical mesh, and hence the rationale for noted mesh-related complications. It is in this sense that the enhanced multidirectional stretch and expansion of the superelastic mesh implant is aimed both to compensate and comply with the displacements of the uterovaginal anastomosis, preventing possible obstetric complications. That is why we chose the KTNM and considered it in the context of fertility-sparing surgery as an attractive alternative to commercially available meshes.