Strength of round and uterosacral ligaments: a biomechanical study

• Tipo: Artigo em Revista Científica Internacional
• Data: 2013

Autores

martins, p (Autor) FEUP; silva, al (Autor) Outra; fonseca, amrm (Autor) Outra; santos, a (Autor) Outra; santos, l (Autor) Outra; mascarenhas, t (Autor) FMUP; jorge, rmn (Autor) FEUP; ferreira, am (Autor) Outra

Revista

Título: Archives of Gynecology and Obstetrics

Vol. 287

Páginas: 313-318

ISSN: 0932-0067

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 27 Citações

ISI Web of Science

Scopus - 29 Citações

Pubmed / Medline

Classificação Científica

FOS: Ciências médicas e da saúde > Medicina clínica

CORDIS: Ciências da Saúde > Ciências Médicas > Medicina > Ginecologia

Outras Informações

ID Authenticus: P-002-10M

DOI: 10.1007/s00404-012-2564-3

Abstract (EN): To investigate the tensile biomechanical properties of round and uterosacral ligaments. Tissue samples were obtained from 15 female cadavers without pelvic organ prolapse. Uniaxial tensile tests were performed to obtain stiffness and maximum stress of round and uterosacral ligaments. Correlations were calculated using the Pearson correlation coefficient. Statistical differences between groups were tested using Student's paired and unpaired t test. There was a great variability in the measurements of stiffness and maximum stress in pelvic ligaments. The round ligaments demonstrated stiffness of 9.1 +/- A 1.6 MPa (mean +/- A SEM) (ranging from 2 to 25.6 MPa) and maximum stress of 4.3 +/- A 0.7 MPa (ranging from 1.2 to 11.5 MPa). The stiffness of the uterosacral ligaments was 14.1 +/- A 1.4 MPa (ranging from 5.7 to 26.1 MPa) with maximum stress of 6.3 +/- A 0.8 MPa (ranging from 2.2 to 11.9 MPa). There was a strong positive correlation between stiffness and maximum stress in female pelvic ligaments (rho = 0.851; p < 0.001). The uterosacral ligaments demonstrated higher stiffness and maximum stress compared to the round ligaments (p = 0.006 and p = 0.034; respectively). Age, body mass index and menopausal status were not associated with the biomechanical proprieties of round and uterosacral ligaments. Nulliparous women had lower uterosacral stiffness (15.5 +/- A 1.3 vs. 10 +/- A 1.8 MPa; p = 0.033) and maximum stress (8.2 +/- A 0.9 vs. 4.2 +/- A 1.1 MPa; p = 0.028) compared to parous women. The uterosacral ligaments are significantly more resistant than round ligaments. Parturition seems to enhance the stiffness and maximum stress of the ligaments.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6