Time-Dependent Changes of Magnetic Resonance Imaging–Visible Mesh Implants in Patients

Ciritsis, Alexander; Hansen, Nienke L.; Barabasch, Alexandra; Kuehnert, Nicolas; Otto, Jens; Conze, Joachim; Klinge, U.; Kuhl, Christiane K.; Kraemer, Nils A.

doi:10.1097/rli.0000000000000051

Cited by 24 publications

(25 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…We describe a promising and innovative way of treatment that-based on our experience with the 3-D funnel mesh implant-appears to provide great benefits for both prevention and treatment of PSH compared with other commonly performed procedures [13]. Ciritsis et al [17] have reported a significant mesh shrinkage of 20.9 % occurring within 90 days after ironloaded PVDF mesh implantation in inguinal hernia surgery. In terms of size of the mesh, surgeons may have to distinguish prevention and treatment of PSH independently of standard mesh sizes.…”

Section: Discussionmentioning

confidence: 96%

Magnetic resonance visible 3-D funnel meshes for laparoscopic parastomal hernia prevention and treatment

Köhler

Wundsam²,

Pallwein-Prettner

et al. 2015

Eur Surg

View full text Add to dashboard Cite

Background Funnel mesh implants can be used for both prevention and repair of parastomal hernia (PSH). We aimed to prove the practice of such implants as well as the magnetic resonance (MR) presentability in humans.Methods Five patients were surgically treated for laparoscopic PSH prevention, and five patients underwent laparoscopic repair of manifest and symptomatic PSH with iron-loaded 3-D funnel meshes in an intraperitoneal onlay technique. MR investigation was performed on postoperative day 7 to assess mesh delineation, and additionally 6 and 12 months postoperatively to evaluate hernia recurrences and biocompatibility of mesh integration.Results We could demonstrate precise mesh depiction and delineation with MR in all 10 cases, as well as accurate assessment of the surrounding tissue. No funnel alterations and no functional change of the stoma bowel patency occurred due to the tightly fitting funnel implant. We documented no mesh-related complications, no PSH formation, and no stoma prolapse occurrence during the follow-up period of 1 year comprising all ten cases.Conclusion The pilot use of a new method of MR investigation using a mesh with enhanced signal through the addition of iron particles into the polyvinylidene fluoride base material provides detailed mesh depiction. Furthermore, funnel mesh implantation seems to offer a safe and promising surgical alternative for both PSH prevention and treatment.

show abstract

Section: Discussionmentioning

confidence: 96%

Magnetic resonance visible 3-D funnel meshes for laparoscopic parastomal hernia prevention and treatment

Köhler

Wundsam²,

Pallwein-Prettner

et al. 2015

Eur Surg

View full text Add to dashboard Cite

show abstract

“…In both pressure conditions (0 and 15 mmHg), the signal voids induced by the iron‐loaded mesh's susceptibility differences were used to generate polygonal surface models of the mesh implants as described previously . On the obtained polygonal surface models using dedicated software (Geomagic Studio 2012.1.0; Geomagic, Morrisville, NC), the overall surface area, the length and the elongation in longitudinal and transverse directions of the meshes were assessed for both pressure conditions (0; 15 mmHg).Whereby the longitudinal and transverse directions of the animal agreed with the previously in vitro defined longitudinal and transverse directions of the meshes.…”

Section: Methodsmentioning

confidence: 99%

Porosity and tissue integration of elastic mesh implants evaluated in vitro and in vivo

et al. 2017

Self Cite

View full text Add to dashboard Cite

show abstract

“…Both settings, of course, yield a high level of selection bias. This changed with the introduction of mesh implants loaded with iron particles that have proven to be visible in cross section imaging in various previous studies [1][2][3]. All of these aimed to evaluate presentability and postoperative changes in mesh size and surface area after implantation in either laparoscopic or open intraperitoneal onlay mesh (IPOM)-, retromuscular sublay-, or infra diaphragmatic onlay (for hiatal hernia augmentation)-position.…”

Section: Introductionmentioning

confidence: 99%

“…All of these aimed to evaluate presentability and postoperative changes in mesh size and surface area after implantation in either laparoscopic or open intraperitoneal onlay mesh (IPOM)-, retromuscular sublay-, or infra diaphragmatic onlay (for hiatal hernia augmentation)-position. Two studies [1,3] focused on inguinal hernias. All trials to date include a limited number of patients and evaluate in vivo mesh behavior in very different anatomical positions [1,[3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Surgical and radiological behavior of MRI-depictable mesh implants after TAPP repair: the IRONMAN study

Lechner

Meissnitzer

Borhanian

et al. 2019

Hernia

View full text Add to dashboard Cite

Purpose Knowledge of postoperative behavior of mesh implants used for hernia repair is generally limited to cases of recurrence, local complications or return to the previous operative field in other pathological conditions. Previous studies with MRI-visible mesh implants in different parts of the abdominal wall have led to variable findings with regard to mesh properties and mostly described a reduction in size over time with subsequently limited mesh overlap over hernia defects which could contribute to recurrence. We aimed to evaluate implant properties in a mechanically stable anatomical region after TAPP repair of primary unilateral inguinal hernias in men with clinical and MRI examinations 4 weeks and 1 year after surgery. Methods From 11/2015 to 01/2019, 23 men with primary, unilateral, inguinal hernias underwent TAPP repair with iron particle-loaded, MRI-visible mesh implants in a prospective cohort study. In 16 patients the operative outcome could be evaluated 4 weeks and 12 months after surgery by clinical examination and MRI evaluation with regard to postoperative course, possible adverse outcomes and radiological findings related to implant behavior-namely MRI-identifiability, mesh dislocation or reduction in surface area. Results All included patients had an uneventful postoperative clinical course. MRI after 4 weeks revealed one postoperative seroma, which resolved spontaneously. No recurrence was detected. Mesh implants could be accurately delineated in DIXON-IN studies and showed neither clinically nor statistically significant changes in size or position. Conclusion 4 weeks and 1 year after a standardized TAPP procedure the mesh implant used in this study showed no tendency towards dislocation or reduction in size in this anatomical position. Its MRI visibility allows accurate delineation during the postoperative course by experienced radiologists in appropriate MRI protocols. Larger patient series are desirable to further support these findings. Shrinkage of implants in the groin as a reason for early recurrence may be overestimated.Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

show abstract

Time-Dependent Changes of Magnetic Resonance Imaging–Visible Mesh Implants in Patients

Cited by 24 publications

References 26 publications

Magnetic resonance visible 3-D funnel meshes for laparoscopic parastomal hernia prevention and treatment

Magnetic resonance visible 3-D funnel meshes for laparoscopic parastomal hernia prevention and treatment

Porosity and tissue integration of elastic mesh implants evaluated in vitro and in vivo

Surgical and radiological behavior of MRI-depictable mesh implants after TAPP repair: the IRONMAN study

Contact Info

Product

Resources

About