Elasticity of the living abdominal wall in laparoscopic surgery

Chengli Song, Afshin Alijani, Tim Frank, George Hanna, Alfred Cuschieri

    Research output: Contribution to journalArticle

    36 Citations (Scopus)

    Abstract

    Laparoscopic surgery requires inflation of the abdominal cavity and this offers a unique opportunity to measure the mechanical properties of the living abdominal wall. We used a motion analysis system to study the abdominal wall motion of 18 patients undergoing laparoscopic surgery, and found that the mean Young's modulus was 27.7±4.5 and 21.0±3.7 kPa for male and female, respectively. During inflation, the abdominal wall changed from a cylinder to a dome shape. The average expansion in the abdominal wall surface was 20%, and a working space of 1.27×10-3 m3 was created by expansion, reshaping of the abdominal wall and diaphragmatic movement. For the first time, the elasticity of human abdominal wall was obtained from the patients undergoing laparoscopic surgery, and a 3D simulation model of human abdominal wall has been developed to analyse the motion pattern in laparoscopic surgery. Based on this study, a mechanical abdominal wall lift and a surgical simulator for safe/ergonomic port placements are under development.
    Original languageEnglish
    Pages (from-to)587-591
    Number of pages5
    JournalJournal of Biomechanics
    Volume39
    Issue number3
    DOIs
    Publication statusPublished - 2006

    Fingerprint

    Elasticity
    Abdominal Wall
    Laparoscopy
    Surgery
    Economic Inflation
    Domes
    Ergonomics
    Simulators
    Elastic moduli
    Mechanical properties
    Human Engineering
    Abdominal Cavity
    Elastic Modulus

    Keywords

    • Abdominal wall elasticity
    • Motion analysis
    • Laparoscopic surgery

    Cite this

    Song, Chengli ; Alijani, Afshin ; Frank, Tim ; Hanna, George ; Cuschieri, Alfred. / Elasticity of the living abdominal wall in laparoscopic surgery. In: Journal of Biomechanics. 2006 ; Vol. 39, No. 3. pp. 587-591.
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    abstract = "Laparoscopic surgery requires inflation of the abdominal cavity and this offers a unique opportunity to measure the mechanical properties of the living abdominal wall. We used a motion analysis system to study the abdominal wall motion of 18 patients undergoing laparoscopic surgery, and found that the mean Young's modulus was 27.7±4.5 and 21.0±3.7 kPa for male and female, respectively. During inflation, the abdominal wall changed from a cylinder to a dome shape. The average expansion in the abdominal wall surface was 20{\%}, and a working space of 1.27×10-3 m3 was created by expansion, reshaping of the abdominal wall and diaphragmatic movement. For the first time, the elasticity of human abdominal wall was obtained from the patients undergoing laparoscopic surgery, and a 3D simulation model of human abdominal wall has been developed to analyse the motion pattern in laparoscopic surgery. Based on this study, a mechanical abdominal wall lift and a surgical simulator for safe/ergonomic port placements are under development.",
    keywords = "Abdominal wall elasticity, Motion analysis, Laparoscopic surgery",
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    Elasticity of the living abdominal wall in laparoscopic surgery. / Song, Chengli; Alijani, Afshin; Frank, Tim; Hanna, George; Cuschieri, Alfred.

    In: Journal of Biomechanics, Vol. 39, No. 3, 2006, p. 587-591.

    Research output: Contribution to journalArticle

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    AU - Alijani, Afshin

    AU - Frank, Tim

    AU - Hanna, George

    AU - Cuschieri, Alfred

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    AB - Laparoscopic surgery requires inflation of the abdominal cavity and this offers a unique opportunity to measure the mechanical properties of the living abdominal wall. We used a motion analysis system to study the abdominal wall motion of 18 patients undergoing laparoscopic surgery, and found that the mean Young's modulus was 27.7±4.5 and 21.0±3.7 kPa for male and female, respectively. During inflation, the abdominal wall changed from a cylinder to a dome shape. The average expansion in the abdominal wall surface was 20%, and a working space of 1.27×10-3 m3 was created by expansion, reshaping of the abdominal wall and diaphragmatic movement. For the first time, the elasticity of human abdominal wall was obtained from the patients undergoing laparoscopic surgery, and a 3D simulation model of human abdominal wall has been developed to analyse the motion pattern in laparoscopic surgery. Based on this study, a mechanical abdominal wall lift and a surgical simulator for safe/ergonomic port placements are under development.

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