title: Relationship between BMI and three different devices used in urinary incontinence procedures and anatomical structures in fresh cadavers. A pilot study.
abstract: OBJECTIVE
  To demonstrate the needle positioning during three types of slings in relation to anatomical structures in fresh cadavers and to evaluate if this positioning is influenced by body mass index (BMI).
  
  
  METHODS
  TVTr sling (retropubic), TVT-O sling (transobturator) and mini-sling (TVT-Secur™) were performed in ten fresh cadavers, followed by dissection of the pudendal (genital) area (external evaluation) and abdominal cavity (internal evaluation). The distance between the devices used in each technique and specific anatomical structures (vessels and bowel) was measured.
  
  
  RESULTS
  The mean distance between TVTr needles and the closest segment of the bowel was 5.0±1.1cm. The mean distance between the TVTr needles and iliac vessels was 8.55±1.59cm, and this distance was inversely proportional to BMI. However, the both correlations were not significantly (p<0.05). The mean distance from TVT-O needle to obturator vessels and nerve was 2.25±0.34cm. This distance was inversely proportional to BMI, but it was not statistically significant.
  
  
  CONCLUSIONS
  Our data suggested that BMI may be not an important factor for influencing the relationship between the devices and anatomical structures in three different slings in fresh cadavers.
authors: Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.
authors: Jorge Milhem
authors: JM
authors: Haddad
authors: Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.
authors: Lilian Renata
authors: LR
authors: Fiorelli
authors: Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.
authors: Tatiane
authors: T
authors: de Lima Takami
authors: Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.
authors: Thais Villela
authors: TV
authors: Peterson
authors: Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil. Electronic address: jsoares415@hotmail.com.
authors: José Maria
authors: JM
authors: Soares
authors: Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.
authors: Edmund C
authors: EC
authors: Baracat
mesh_terms: D000368:Aged; D015992:Body Mass Index; D002102:Cadaver; D006801:Humans; D010865:Pilot Projects; D053825:Suburethral Slings; D014549:Urinary Incontinence / Q000601:surgery*; D013520:Urologic Surgical Procedures / Q000295:instrumentation*
keywords: Anatomy; Body mass index; Fresh cadaver; Sling; Tension-free-vaginal tape