Tissue resistance of the tension-free procedure: What about healing?

Fixation-free incisional hernia repair in the elderly: our experience with a tentacle-shaped implant

BACKGROUND

Incisional hernia in aged patients represents a challenge even for experienced surgeons. Besides increased risk of complications due to comorbidities, mesh fixation and assuring a sufficient mesh overlap of the defect are the main issues in carrying out the repair.

AIMS

In order to assure broader coverage of the abdominal wall and a tension- and fixation-free repair, a specifically designed prosthesis was developed for the surgical treatment of incisional hernias. The results of a fixation-free incisional hernia repair carried out in elderly patients using a tentacle-shaped implant are reported herewith.

METHODS

A tentacle-shaped flat mesh with a large central body and integrated arms was used to repair incisional hernia in 23 elderly patients. The mesh was placed fixation-free and secured in place through the friction exerted by the tentacles. All tentacle straps were positioned with a special passer needle. Implant placement was preperitoneal in 18 patients and retromuscular sublay in five.

RESULTS

In a follow-up of 18 to 59 months (mean 36 months), four seromas occurred. Postoperative fast track helped avoid the typical complications affecting this patient subset. No infection, hematoma, chronic pain, mesh dislocation or recurrence have been reported to date.

DISCUSSION

The tentacle strap system allowed for reduced skin incision thus minimizing surgical trauma and ensuring easier and faster implant placement.

CONCLUSION

The tentacle arms of the implant ensured mesh stability and broad defect overlap. Besides a very low complication rate, none of the typical postoperative complications of aged patients occurred.

Factors that affect early recurrence after prolapse repair by a nonanchored vaginal mesh procedure

OBJECTIVE

Prosima (Ethicon, Somerville, NJ, USA) is a novel procedure for treating pelvic organ prolapse (POP) that uses nonanchored vaginal mesh. However, nonfixation of the mesh may limit effectiveness. The aim of this study was to evaluate the safety, efficacy, and limitations of this procedure.

MATERIALS AND METHODS

From January 2011 through to December 2011, 52 patients with symptomatic POP ≥ Stage 2 undergoing the Prosima procedure at a tertiary hospital were enrolled consecutively in this prospective study. A Data and Safety Monitoring Plan (DSMP) was developed to assess the results.

RESULTS

Fifty of the 52 patients (96%) attended the 3-6-month postoperative assessment. Symptom and quality-of-life scores were found to have improved significantly after surgery (p < 0.05). Forty-two patients (84%) underwent successful treatment for POP (Stage 0-1). The other eight patients (16%) were found to have recurrent Stage 2 anterior vaginal wall prolapse, although most of them (5/8) were asymptomatic. The highest morbidity, namely vaginal mesh exposure, occurred in four patients (8%) and was managed as a minor issue. Statistical analysis showed that anatomic recurrence was significantly (p < 0.05) associated with a "preoperative Ba ≥ +4 cm" (odds ratio = 20.57), "conservation of the prolapsed uterus" (odds ratio = 10.56) and "use of a concomitant midurethral sling" (odds ratio = 0.076).

CONCLUSION

Prosima seems to have limitations when used to manage severe anterior vaginal wall prolapse and concomitant surgery may further affect its effectiveness. The information obtained from this study's DSMP will contribute to developing a strategy to improve the use of nonanchored vaginal mesh for POP repair.

[Utero-vaginal suspension using a bilateral vaginal anterior sacrospinous fixation with mesh. Preliminary results]

OBJECTIVE

To assess anatomical and functional preliminary results, and safety of a new surgical approach for a combined treatment of pelvic organ prolapse (POP) of anterior and medium compartments, using a mesh attached through the sacrospinous ligaments with the UpHold(®) system (Boston Scientific) and the Capio(®).

MATERIAL AND METHODS

A longitudinal case series of 59 consecutive patients operated between October 2009 and January 2012, by five senior surgeons in a single tertiary unit.

RESULTS

Mean age was 66.9 years. Ten patients (17%) had previous pelvic organ prolapse (POP) surgery. There was no intraoperative complication. Mean follow-up was 12 months. Anatomical success for both anterior and apical compartments, i.e. Ba and C/D point<1, was 93% (52/56). Anatomical results shown correction of cystocele with a mean Ba point from+0.79 cm (range -3 to +8) to -2.35 cm (range -3 to 0), correction of uterine/vaul prolapse with a mean C/D point from+0.14 cm (range -6 to+8) to -7.29 cm (range -9 to -1), and correction of rectocele with a mean Bp point from -0.68 cm (range -3 to 7) to -2.77 cm (range -3 to -1). Two patients required further surgery for mesh exposure (3.5%). One patient had a unilateral pudendal neuropathic pain postoperatively.

CONCLUSION

In the current series, utero-vaginal suspension using a bilateral vaginal anterior sacrospinous fixation with mesh was associated with good anatomical success rates. Prospective, comparative and long-term data are needed.

Medium-term clinical outcomes following surgical repair for vaginal prolapse with tension-free mesh and vaginal support device

INTRODUCTION AND HYPOTHESIS

This study was designed to evaluate clinical outcomes ≥2 years following surgery with polypropylene mesh and vaginal support device (VSD) in women with vaginal prolapse, in a prospective, multi-center setting.

METHODS

Patients re-consented for this extended follow-up (n = 110), with anatomic evaluation using Pelvic Organ Prolapse Quantification (POP-Q) and validated questionnaires to assess pelvic symptoms and sexual function. Complications were recorded (safety set; n = 121).

RESULTS

Median length of follow-up was 29 months (range 24-34 months). The primary anatomic success, defined as POP-Q 0-I, was 69.1%; however, in 84.5% of the cases, the leading vaginal edge was above the hymen. Pelvic symptoms and sexual function improved significantly from baseline (p < 0.01). Mesh exposure rate was 9.1%. Five percent reported stress urinary incontinence and 3.3% required further prolapse surgery.

CONCLUSION

These results indicate this non-anchored mesh repair is a safe and effective treatment for women with symptomatic vaginal prolapse in the medium term.

One-year clinical outcomes after prolapse surgery with nonanchored mesh and vaginal support device

OBJECTIVE

The purpose of this study was to evaluate outcomes after standardized transvaginal prolapse repair with nonanchored mesh and a vaginal support device.

STUDY DESIGN

Postoperative vaginal support was assessed by pelvic organ prolapse quantitative examination after repair of symptomatic stage II/III prolapse. Validated questionnaires assessed pelvic symptoms and sexual function. Visual analog scales quantified experience with the vaginal support device.

RESULTS

One hundred thirty-six women received the planned surgery; 95.6% of the women returned for the 1-year assessment: 76.9% of the cases were stage 0/I; however, in 86.9% of the cases, the leading vaginal edge was above the hymen. Pelvic symptoms, quality of life, and sexual function improved significantly from baseline (P < .05). Median visual analog scale scores for vaginal support device awareness and discomfort were 2.6 and 1.2, respectively (0 = none; 10 = worst possible).

CONCLUSION

Vaginal support, pelvic symptoms, and sexual function improved at 1 year, compared with baseline, after trocar-free prolapse repair with nonanchored mesh and a vaginal support device.

Prosthetic strap system for simplified ventral hernia repair: results of a porcine experimental model

INTRODUCTION

Aiming to achieve a simplified ventral hernia repair, a proprietary oval-shaped mesh was experimentally tested in a porcine model. The mesh is structured with a large central body and radiating straps. The friction of the straps passing through the tissues are hypothesized to be adequate to maintain the position of the mesh during tissue ingrowth, avoiding classic point fixation while ensuring a wide coverage of the abdomen.

METHODS

The mesh, having six radial straps, was placed using a sublay preperitoneal technique in four pigs. All straps were passed laterally through the abdominal wall and exteriorized from the skin. The straps were trimmed at the level of the skin, allowing the stumps to recoil into the subcutaneous space. The animals were euthanized at 1 and 4 months to determine the integration of the straps.

RESULTS

Macroscopically, all 24 straps were firmly incorporated within the abdominal wall. The tension-free placement of the mesh by using the straps was effective. The friction of the straps passing through the tissues was adequate to keep the mesh well orientated. No dislocation of the implants was observed. The strap system also allowed a broader coverage of the abdominal wall, far beyond the wound opening.

CONCLUSIONS

The described arm system of the aforementioned implant seems to be effective in eliminating point fixation of the mesh. The fixation arms seemed to have ensured that the mesh stayed orientated in all of the animals. A very wide lateral mesh placement was accomplished, assuring sufficient defect overlap when shrinkage occurs.