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Comparative Study on Self-adhesive Mesh for Open Inguinal Hernia Repair

2014-08-27 03:20:01 | BioPortfolio

Summary

Tension-less mesh repair is the most common procedure for inguinal hernia. Conventional heavy weight polypropylene meshes have been reported to stimulate inflammatory reaction and this is responsible for mesh shrinkage and postoperative chronic groin pain. Moreover, the fixation of the mesh with sutures is a tedious procedure and accounts for the majority of the operating time. A self gripping semi-absorbable mesh has been developed for anterior tension free inguinal hernia repair. It has the benefit of light weight property and does not require sutures for fixation. This study aims to compare the outcome of this self-gripping light weight mesh with the conventional heavy weight polypropylene mesh in inguinal hernia repair.

Description

Tension free mesh repair is the most common procedure for inguinal hernia repair. Conventional heavy weight polypropylene meshes have been reported to stimulate inflammatory reaction and this is responsible for mesh shrinkage when scar tissues are formed. In addition, the mesh requires fixation with sutures and there has been postulation that the fixation technique is related to postoperative chronic groin pain. Therefore, some authors have recommended the use of light-weight meshes and to limit the extent of fixation or to use non-compressive absorbable devices. In order to reduce the complications, a new self-gripping semi-resorbable mesh has been developed for anterior tension-free inguinal hernia repair.

The aim of this study is to compare the difference in operating time for open inguinal hernia repair with conventional prolene mesh and ProgripTM, which is a light-weight mesh with self-adhesive mechanism.

Methodology: Patients present with first episode of inguinal hernia are included into the study. Those with a sizable defect (>3cm defect), bilateral, inguino-scrotal hernia, irreducible, recurrence are excluded from study. Informed consents are signed before procedures and details of randomization are explained. Operations are performed by or under the supervision of specialist surgeons. Standardized inguinal dissection are performed. Randomization is carried out immediately before placement of mesh and after adequate inguinal dissection. PI / co-investigator phone to research assistant and ask for randomization result generated by computer. Total operative time, time from mesh placement to wound closure, blood loss, intra-operative complications, hospital stay, post-operative pain and analgesic used are documented.

Post-operative follow-up: Follow-up on day 14, 3 months, 6 months and 1 year post-op. Pain score, paraesthesia , chronic discomfort / pain, recurrence, seroma formation, testicular atrophy are documented. Thereafter, yearly follow-up is performed at clinic or by telephone to document the recurrence and chronic pain.

Parietene ProGrip™ (PP1208DR/ PP1208DL) Manufacturer: Sofradim Production Material: Monofilaments of polypropylene and polylactic acid (PLA) Color: Clear (undyed) Weight: 80g/m2 (before PLA resorbtion), 40g/m2 (after PLA resorbtion) Poresize: 1.7mm x 1mm

Material detailed description:

Parietene ProGrip™ is the first bio-component mesh comprised of monofilament polyester and a resorbable polylactic acid (PLA) gripping system which perfects true tension-free repair. The microhools cover the entire underside of the material allow complete anchoring of the mesh on the tissue. Self-gripping features also allows a strong and solid self-anchoring fixation and therefore making the hernia sac to fit perfectly to groin anatomy and move less underneath the prosthesis. Therefore, less suture is required and so operative time can be saved. Also less chance of nerve entrapment may cause low postoperative pain.

Surgipro Mesh (SPMM-35) Material: Monofilaments of polypropylene Color: Clear (undyed) Measurement: 15cmx15cm Thickness: 0.57mm

Description:

SURGIPRO Mesh is a non-absorbable, inert, sterile, porous surgical mesh knitted from mono-filament fibers of polypropylene polymer. The mesh exhibits high burst strength and tensile strength. The mesh is knitted in such fashion as to interconnect each mono-filament fiber and provide bi-dimensional elasticity while allowing the mesh to be cut to shape without unraveling.

Actions:

SURGIPRO Mesh is a porous, non-absorbable mesh used to repair or reinforce fascial defects following surgery or trauma and serves to provide additional support to such wounds during and following the wound healing period. Animal studies have shown that the polypropylene mono-filament fibers from which SURGIPRO Mesh is manufactured elicit a minimal acute inflammatory reaction in tissue, which is then followed by gradual encapsulation by fibrous tissue. In-growth of this fibrous tissue is permitted by the porosity of the knitted mesh structure. The mesh remains soft and pliable and the non-absorbable polypropylene fibers comprising the mesh resists loss of tensile strength in vivo.

Study Design

Allocation: Randomized, Control: Active Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Conditions

Inguinal Hernia Repair

Intervention

PROGRIP, POLYPROPYLENE

Location

Department of Surgery, The University of Hong Kong
HKSAR, China
China

Status

Recruiting

Source

The University of Hong Kong

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:20:01-0400

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Medical and Biotech [MESH] Definitions

An abdominal hernia with an external bulge in the GROIN region. It can be classified by the location of herniation. Indirect inguinal hernias occur through the internal inguinal ring. Direct inguinal hernias occur through defects in the ABDOMINAL WALL (transversalis fascia) in Hesselbach's triangle. The former type is commonly seen in children and young adults; the latter in adults.

A protrusion of abdominal structures through the retaining ABDOMINAL WALL. It involves two parts: an opening in the abdominal wall, and a hernia sac consisting of PERITONEUM and abdominal contents. Abdominal hernias include groin hernia (HERNIA, FEMORAL; HERNIA, INGUINAL) and VENTRAL HERNIA.

A groin hernia occurring inferior to the inguinal ligament and medial to the FEMORAL VEIN and FEMORAL ARTERY. The femoral hernia sac has a small neck but may enlarge considerably when it enters the subcutaneous tissue of the thigh. It is caused by defects in the ABDOMINAL WALL.

The tunnel in the lower anterior ABDOMINAL WALL through which the SPERMATIC CORD, in the male; ROUND LIGAMENT, in the female; nerves; and vessels pass. Its internal end is at the deep inguinal ring and its external end is at the superficial inguinal ring.

A pelvic hernia through the obturator foramen, a large aperture in the hip bone normally covered by a membrane. Obturator hernia can lead to intestinal incarceration and INTESTINAL OBSTRUCTION.

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