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Giant ventral hernia-relationship between abdominal wall muscle strength and hernia area
Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
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2016 (English)In: BMC Surgery, ISSN 1471-2482, E-ISSN 1471-2482, Vol. 16, 50Article in journal (Refereed) Published
Abstract [en]

Background: Symptoms arising from giant ventral hernia have been considered to be related to weakening of the abdominal muscles. The aim of this study was to investigate the relationship between the area of the abdominal wall defect and abdominal wall muscle strength measured by the validated BioDex system together with a back/ abdominal unit.

Methods: Fifty-two patients with giant ventral hernia (> 10 cm wide) underwent CT scan, clinical measurement of hernia size and BioDex measurement of muscle strength prior to surgery. The areas of the hernia derived from CT scan and from clinical measurement were compared with BioDex forces in the modalities extension, flexion and isometric contraction. The Spearman rank test was used to calculate correlations between area, BMI, gender, age, and muscle strength.

Result: The hernia area calculated from clinical measurements correlated to abdominal muscle strength measured with the Biodex for all modalities (p-values 0.015-0.036), whereas no correlation was seen with the area calculated by CT scan. No relationship was seen between BMI, gender, age and the area of the hernia.

Discussion: The inverse correlation between BioDex abdominal muscle strength and clinically assessed hernia area, seen in all modalities, was so robust that it seems safe to conclude that the area of the hernia is an important determinant of the degree of loss of abdominal muscle strength. Results using hernia area calculated from the CT scan showed no such correlation and this would seem to concur with the results from a previous study by our group on patients with abdominal rectus diastasis. In that study, defect size assessed clinically, but not that measured by CT scan, was in agreement with the size of the diastasis measured intra-operatively.

The point at which the area of a hernia begins to correlate with loss of abdominal wall muscle strength remains unknown since this study only included giant ventral hernias.

Place, publisher, year, edition, pages
2016. Vol. 16, 50
Keyword [en]
Giant ventral hernia, Abdominal muscle strength, Hernia area, Biodex
National Category
Physiology Surgery
Identifiers
URN: urn:nbn:se:umu:diva-126621DOI: 10.1186/s12893-016-0166-xISI: 000381962800001PubMedID: 27484911OAI: oai:DiVA.org:umu-126621DiVA: diva2:1048710
Available from: 2016-11-22 Created: 2016-10-12 Last updated: 2016-12-07Bibliographically approved

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Strigård, KarinGunnarsson, Ulf
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