NCT04138329

Brief Summary

This is a randomized, double blind, controlled study. The aim is to compare postoperative inguinal pain using the Inguinal Pain Questionnaire (IPQ) validated in Spanish and Numerical Pain Scale in postoperative patients with Lichtenstein and Onstep technique at 1 week, 1, 3 and 6 months. The investigators also validated the IPQ in spanish. It was randomized 20 patients for the Lichtenstein repair and 20 patients for the Onstep technique. The study was conducted in the General Surgery Department of the Central Hospital Dr. Ignacio Morones Prieto, considered as a second level of attention and a surgery training center. The validated questionnaire in spanish and the visual pain scale were applied in the office at 1 week and by phone at 1 month, 3 and 6 months after surgery by two evaluators who did not know the surgical technique used.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
40

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Sep 2018

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 15, 2018

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 24, 2019

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 24, 2019

Completed
27 days until next milestone

First Submitted

Initial submission to the registry

October 21, 2019

Completed
3 days until next milestone

First Posted

Study publicly available on registry

October 24, 2019

Completed
Last Updated

October 24, 2019

Status Verified

October 1, 2019

Enrollment Period

6 months

First QC Date

October 21, 2019

Last Update Submit

October 22, 2019

Conditions

Outcome Measures

Primary Outcomes (8)

  • Postoperative inguinal pain assessed by the Inguinal Pain Questionnaire validated in spanish.

    The inguinal pain questionnaire (IPQ) was developed by U. Fränneby et al. and published in 2008 as a tool to measure pain behavior. Evaluates the current inguinal pain, the worst pain experienced in the last week and interference with daily activities due to pain. There is a total of 18 questions with a duration of less than 10 minutes to complete it. They concluded that the questionnaire produces valid and reliable information on the frequency and severity of inguinal pain. The investigators also validated this survey in spanish so it could be applied in the study population.

    The questionnaire was applied at 1 week after surgery

  • Postoperative inguinal pain assessed by the Inguinal Pain Questionnaire validated in spanish.

    The inguinal pain questionnaire (IPQ) was developed by U. Fränneby et al. and published in 2008 as a tool to measure pain behavior. Evaluates the current inguinal pain, the worst pain experienced in the last week and interference with daily activities due to pain. There is a total of 18 questions with a duration of less than 10 minutes to complete it. They concluded that the questionnaire produces valid and reliable information on the frequency and severity of inguinal pain. The investigators also validated this survey in spanish so it could be applied in the study population.

    The questionnaire was applied at 1 month after surgery

  • Postoperative inguinal pain assessed by the Inguinal Pain Questionnaire validated in spanish.

    The inguinal pain questionnaire (IPQ) was developed by U. Fränneby et al. and published in 2008 as a tool to measure pain behavior. Evaluates the current inguinal pain, the worst pain experienced in the last week and interference with daily activities due to pain. There is a total of 18 questions with a duration of less than 10 minutes to complete it. They concluded that the questionnaire produces valid and reliable information on the frequency and severity of inguinal pain. The investigators also validated this survey in spanish so it could be applied in the study population.

    The questionnaire was applied at 3 months after surgery

  • Postoperative inguinal pain assessed by the Inguinal Pain Questionnaire validated in spanish.

    The inguinal pain questionnaire (IPQ) was developed by U. Fränneby et al. and published in 2008 as a tool to measure pain behavior. Evaluates the current inguinal pain, the worst pain experienced in the last week and interference with daily activities due to pain. There is a total of 18 questions with a duration of less than 10 minutes to complete it. They concluded that the questionnaire produces valid and reliable information on the frequency and severity of inguinal pain. The investigators also validated this survey in spanish so it could be applied in the study population.

    The questionnaire was applied at 6 months after surgery

  • Postoperative inguinal pain assessed by Numerical Pain Rating Scale

    This scale is a segmented numeric version of the visual analog scale in which a respondent selects a whole number (0-10 integers) that best reflects the intensity of pain, 0 means no pain and 10 the worst pain ever.

    The scale was applied at 1 week after surgery

  • Postoperative inguinal pain assessed by Numerical Pain Rating Scale

    This scale is a segmented numeric version of the visual analog scale in which a respondent selects a whole number (0-10 integers) that best reflects the intensity of pain, 0 means no pain and 10 the worst pain ever.

    The scale was applied at 1 month after surgery

  • Postoperative inguinal pain assessed by Numerical Pain Rating Scale

    This scale is a segmented numeric version of the visual analog scale in which a respondent selects a whole number (0-10 integers) that best reflects the intensity of pain, 0 means no pain and 10 the worst pain ever.

    The scale was applied at 3 months after surgery

  • Postoperative inguinal pain assessed by Numerical Pain Rating Scale

    This scale is a segmented numeric version of the visual analog scale in which a respondent selects a whole number (0-10 integers) that best reflects the intensity of pain, 0 means no pain and 10 the worst pain ever.

    The scale was applied at 6 months after surgery

Study Arms (2)

Lichtenstein Technique

ACTIVE COMPARATOR

In this arm the inguinal hernia repair was made with the Lichtenstein technique by surgeons with experience in this kind of plasty using the conventional polypropylene mesh.

Procedure: Lichtenstein Technique

Onstep Technique

EXPERIMENTAL

In this arm the inguinal hernia repair was made with the Onstep technique by one surgeon with experience using the Bard's 3DMAX mesh.

Procedure: Onstep Technique

Interventions

In this group was used the Lichtenstein technique for inguinal repair

Lichtenstein Technique

In this group was used the Onstep technique for inguinal repair

Onstep Technique

Eligibility Criteria

Age16 Years+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Diagnosis of unilateral inguinal hernia.
  • Male or Female.
  • Older tan 16 years.
  • Accept to participate in the study.

You may not qualify if:

  • Chronic Obstructive Pulmonary Disease.
  • Obesity.
  • Diabetes Mellitus.
  • Cirrhosis.
  • Diseases involving collagen deficiency.
  • Previous surgery in the groin.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hospital Central Dr. Ignacio Morones Prieto

San Luis Potosí City, 78290, Mexico

Location

Related Publications (8)

  • Rosenberg J, Andresen K. The Onstep Method for Inguinal Hernia Repair: Operative Technique and Technical Tips. Surg Res Pract. 2016;2016:6935167. doi: 10.1155/2016/6935167. Epub 2016 Jun 9.

    PMID: 27379255BACKGROUND
  • Andresen K, Burcharth J, Fonnes S, Hupfeld L, Rothman JP, Deigaard S, Winther D, Errebo MB, Therkildsen R, Hauge D, Sorensen FS, Bjerg J, Rosenberg J. Chronic pain after inguinal hernia repair with the ONSTEP versus the Lichtenstein technique, results of a double-blinded multicenter randomized clinical trial. Langenbecks Arch Surg. 2017 Mar;402(2):213-218. doi: 10.1007/s00423-016-1532-y. Epub 2016 Nov 11.

    PMID: 27837273BACKGROUND
  • Alfieri S, Amid PK, Campanelli G, Izard G, Kehlet H, Wijsmuller AR, Di Miceli D, Doglietto GB. International guidelines for prevention and management of post-operative chronic pain following inguinal hernia surgery. Hernia. 2011 Jun;15(3):239-49. doi: 10.1007/s10029-011-0798-9. Epub 2011 Mar 2.

    PMID: 21365287BACKGROUND
  • Franneby U, Gunnarsson U, Andersson M, Heuman R, Nordin P, Nyren O, Sandblom G. Validation of an Inguinal Pain Questionnaire for assessment of chronic pain after groin hernia repair. Br J Surg. 2008 Apr;95(4):488-93. doi: 10.1002/bjs.6014.

    PMID: 18161900BACKGROUND
  • Lourenco A, da Costa RS. The ONSTEP inguinal hernia repair technique: initial clinical experience of 693 patients, in two institutions. Hernia. 2013 Jun;17(3):357-64. doi: 10.1007/s10029-013-1057-z. Epub 2013 Feb 24.

    PMID: 23435639BACKGROUND
  • Aasvang E, Kehlet H. Chronic postoperative pain: the case of inguinal herniorrhaphy. Br J Anaesth. 2005 Jul;95(1):69-76. doi: 10.1093/bja/aei019. Epub 2004 Nov 5. No abstract available.

    PMID: 15531621BACKGROUND
  • Browne RH. On the use of a pilot sample for sample size determination. Stat Med. 1995 Sep 15;14(17):1933-40. doi: 10.1002/sim.4780141709.

    PMID: 8532986BACKGROUND
  • Aguilar-Garcia J, Villafuerte-Fernandez R, Ntezes-Hidalgo PI, Meade-Aguilar JA, Ramirez-GarciaLuna JL, Martinez-Jimenez MA. Postoperative inguinal pain and disability after Lichtenstein versus ONSTEP hernia repair: analysis of responses to the inguinal pain questionnaire in Spanish. Surg Today. 2021 May;51(5):703-712. doi: 10.1007/s00595-020-02155-8. Epub 2020 Oct 11.

Study Officials

  • Jorge Aguilar García

    Hospital Central "Dr. Ignacio Morones Prieto"

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Surgeon at the General Surgery Department

Study Record Dates

First Submitted

October 21, 2019

First Posted

October 24, 2019

Study Start

September 15, 2018

Primary Completion

March 24, 2019

Study Completion

September 24, 2019

Last Updated

October 24, 2019

Record last verified: 2019-10

Data Sharing

IPD Sharing
Will not share

Locations