Is increased peripheral ligamentous laxity in term pregnant women associated with obstetric anal sphincter injury?

Détails

ID Serval
serval:BIB_268105492EA4
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Is increased peripheral ligamentous laxity in term pregnant women associated with obstetric anal sphincter injury?
Périodique
International urogynecology journal
Auteur(s)
Gachon B., Desgranges M., Fradet L., Decatoire A., Poireault F., Pierre F., Fritel X., Desseauve D.
ISSN
1433-3023 (Electronic)
ISSN-L
0937-3462
Statut éditorial
Publié
Date de publication
11/2018
Peer-reviewed
Oui
Volume
29
Numéro
11
Pages
1589-1595
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: ppublish
Résumé
Increased ligamentous laxity is associated with pelvic floor distension in pregnant women. This considered, it may also be related to the risk of obstetric anal sphincter injury (OASI). Our objective was to assess the association among increased ligamentous laxity, perineal tear severity, and OASI occurrence.
This is a prospective study. We assessed ligamentous laxity between the 36th week of pregnancy and the onset of labor, by measuring the passive extension of the nondominant index finger for a 0.26 N.m torque applied to the second metacarpophalangeal joint (MCP laxity). We collected perineal tear occurrence and classification (Royal College of Obstetricians and Gynecologists). We investigated the MCP laxity distribution according to the stage of perineal tears, and then we looked for a predictive level of MCP laxity for OASI.
A total of 272 of the 300 pregnant women included had a vaginal delivery and were considered for the analysis. Mean age was 29 years, mean body mass index was 24.5 kg/m <sup>2</sup> and 39.2% of women were nulliparous. We reported 12 cases of OASI. MCP laxity significantly increased with the stage of perineal tears from 58° in stage 0 to 69° and 66° for stages 3a and 3b respectively. An MCP laxity higher than 64° was associated with OASI with sensitivity of 75%, specificity of 56%, and an area under the curve of 0.65.
Increased ligamentous laxity seems associated with OASI occurrence, which is the opposite of the initial hypothesis. This suggests that the stiffest tissues might be at a lower risk of injury.
Mots-clé
Biomechanics, Childbirth, Ligamentous laxity, Obstetric anal sphincter injury, Pelvic floor, Perineal trauma
Pubmed
Création de la notice
25/10/2018 14:49
Dernière modification de la notice
20/08/2019 14:05
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