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Completed

NCT Number: NCT01965249

Effect of Stitch Technique on the Occurrence of Incisional Hernia After Abdominal Wall Closure

The major long term complication of abdominal wall closure after a median laparotomy is the development of an incisional hernia. Several suture technique and suture material have been used but the incidence of this complication still lies between 9 -20%. Synthetic suture material which have become available over the last decades have the advantage that they are degraded by the body system and fully absorbed within 70-180 days; however they loss 50% of their initial strength already after 14-30 days and may not be the optimal suture material for abdominal wall closure. A new suture material (Monomax®) was developed with an extra-long absorption profile, high elasticity and with a superior initial strength. Therefore, the ESTOIH-Study was designed to investigate the influence of the stitch length on the occurrence of incisional hernia using the extra-long term absorbable, elastic, monofilament suture (Monomax®).

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

AKH Linz, Linz, Austria

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age ≥18 years
  • Patients undergoing an elective, primary median laparotomy with an incision length of ≥ 15 cm
  • Expected survival time longer than 1 year
  • ASA I-III
  • Written informed consent

Exclusion criteria

  • Emergency surgery
  • Patient undergoing surgery due to a pancreas carcinoma
  • Patients who will be operated due to an abdominal aortic aneurysm
  • Peritonitis
  • Coagulopathy
  • Current immunosuppressive therapy (more than 40 mg of a corticoid per day or azathioprin)
  • Chemotherapy within the last 2 weeks before operation
  • Radiotherapy of the abdomen within the last 6 weeks before operation
  • Pregnant women (pregnancy test has to be performed)
  • Severe neurologic and psychiatric disease
  • Lack of compliance

Treatment and study plan

Long stitch

Device

AWC with the long stitch technique using MonoMax USP 1, 150 cm loop, HR48 mm

Short Stitch

Device

Short stitch suture technique using MonoMax USP 2/0, 150 cm, HR26 mm

Primary outcomes

  1. Incisional hernia rate

    Time frame: 1 year postoperatively

    Incisional hernia rate 1 year postoperatively (assessment by ultrasound).

Secondary outcomes

  1. Frequency of burst abdomen

    Time frame: participants will be followed for the duration of hospital stay, an expected average of 10 days

    Burst abdomen is defined as a clinically evident rupture of the laparotomy wound

  2. Reoperation due to burst abdomen

    Time frame: participants will be followed for the duration of hospital stay, an expected average of 10 days

    Burst abdomen is defined as a clinically evident rupture of the laparotomy wound

  3. Frequency of wound infections

    Time frame: participants will be followed for the duration of hospital stay, an expected average of 10 days and 30 days postop

    Wound infections are classified according to the US centres for disease control and prevention (CDC) as either deep or superficial.

  4. Wound healing complications

    Time frame: until 30 days postoperatively

    Wound healing complications: Seroma, hematoma, necrosis, fistula

  5. Long Term Incisional hernia rate

    Time frame: 3 and 5 years postoperatively

    assessment by ultrasound

  6. Long term Wound infections

    Time frame: 1 year postoperatively

    Wound infections are classified according to the US centres for disease control and prevention (CDC) as either deep or superficial.

  7. Long Term Wound healing complications

    Time frame: until 1 year postoperatively

    Wound healing complications: Seroma, hematoma, necrosis, fistula

  8. Costs

    Time frame: until 5 years postop

    Costs including material cost, cost per operation minute, cost per hospital stay, cost saving per incisional hernia.

  9. Length of postoperative hospital stay

    Time frame: participants will be followed for the duration of hospital stay, an expected average of 10 days

    Number of days the patient has to stay in hospital after the intervention

  10. Course of Health status with EQ-5D Score

    Time frame: preop, 30 days postop, 1 year, 3 years, 5 years postop

    The EQ-5D-5L essentially consists of 2 pages: the EQ-5D descriptive system and the EQ visual analogue scale (EQ VAS).

    The descriptive system comprises five dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension has 5 levels: no problems, slight problems, moderate problems, severe problems and extreme problems. Each answer results in a 1-digit number that expresses the level selected for that dimension. The digits for the five dimensions are combined into a 5-digit number that describes the patient's health state.

    The EQ VAS records the patient's self-rated health on a vertical visual analogue scale, where the endpoints are labelled 'The best health you can imagine' and 'The worst health you can imagine'. The VAS can be used as a quantitative measure of health outcome that reflect the patient's own judgement.

Sponsors and collaborators

Lead sponsor

Aesculap AG

Industry

Collaborators

  • B.Braun Surgical SA

Registry information

Official study title

Short Stitch Versus Long Stitch Suture Technique Using Monomax® for Abdominal Wall Closure After Primary Median Laparotomy. A Randomized, Controlled, Double-blinded, Multicenter, International Trial

Acronym: ESTOIH

Important dates

Study start
2014
Primary completion
2019
Study completion
2024
First posted
Oct 18, 2013
Registry last updated
Sep 8, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.