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NCT Number: NCT07590492

Redefining Limits: A Clinical Trial on the Safety of Combining Liposuction With Undermining During Abdominoplasty

This study evaluates the safety and outcomes of combining liposuction with varying degrees of abdominal flap undermining during abdominoplasty. Patients were randomly anssigned into three groups based on the extent of undermining and use of liposuction. Outcomes assessed included complication rates, horizontal laxity, and aesthetic results.

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Key information

Conditions

Abdominal Wall Viability Abdominal Lipodystrophy Abdominal Wall Laxity

Age range

18 year–55 year

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

Department of Surgery, Cairo University

Cairo, Egypt

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • Adult patients undergoing
  • Patients fit for elective surgery
  • BMI less than 35 kg/m2

Exclusion criteria

  • Significant uncontrolled comorbidities
  • Previous major abdominal surgery affecting flap vascularity

Treatment and study plan

Liposuction

Procedure

Liposuction of the abdominal flap

Wide undermining

Procedure

Wide undermining of the abdominal flap

Limited undermining

Procedure

Limited undermining of the abdominal flap

Primary outcomes

  1. Aesthetic outcome

    Time frame: 6 months postoperatively

    The postoperative aesthetic outcome was assessed using four predefined criteria by three independent surgeons in a double-blinded fashion. Each patient was assigned a postoperative score, with 1 representing the poorest outcome and 5 the best outcome. The mean score of all reviewers was then calculated for each case. These criteria included waist contour, residual adiposity (central), skin flaccidity, and the overall aesthetic appearance.

  2. Postoperative complication rate (e.g., seroma, necrosis, infection)

    Time frame: Within 6 months postoperatively

Secondary outcomes

  1. Horizontal laxity

    Time frame: 6 months postoperatively

    The "bury test" was used to assess the amount of horizontal laxity. The "bury test", almost the reverse of the pinch, involves burying the loose skin by tightly rolling the skin folds on either side of the resection area, and marking the maximum width of skin contact. This distance was measured both at rest and under tension.

  2. Change in BMI

    Time frame: 6 months postoperatively

  3. Epigastric pinch

    Time frame: 6 months postoperatively

    The epigastric pinch was measured pre and postoperatively and difference was recorded

Sponsors and collaborators

Lead sponsor

Cairo University

Other

Registry information

Important dates

Study start
2022
Primary completion
2024
Study completion
2024
First posted
May 15, 2026
Registry last updated
May 15, 2026

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.

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