title: Comparative trial of the force required for, and pain of, removing GyneFix versus Gyne-T380S following randomised insertion.
abstract: OBJECTIVE
  To assess the force required for, and pain of, removal of the GyneFix as compared with T-framed intrauterine devices (IUDs).
  
  
  METHODS
  A comparative trial following patient-blinded randomisation in an outpatient clinic setting.
  
  
  METHODS
  Women requesting an IUD for emergency contraception were fitted with either a GyneFix or a Gyne-T380S. For those requesting removal of the IUD, visual analogue scores were used to assess their perception of the associated pain, and a Newton dynamometer was used to measure the force required to remove the device.
  
  
  RESULTS
  Removal required significantly more force for GyneFix as compared with Gyne-T380S (p = 0.004), but there was no significant difference in pain perceived by women during removal. Interestingly, anticipated pain was worse than actual pain experienced.
  
  
  CONCLUSIONS
  Although more force is needed to remove the GyneFix as compared with the Gyne-T380S, this does not translate into more pain.
authors.affiliation: Margaret Pyke Centre, London, UK. D'Souza@camdenpct.nhs.uk
authors.forename: Rachel E
authors.initials: RE
authors.lastname: D'Souza
authors.forename: Walli
authors.initials: W
authors.lastname: Bounds
authors.forename: John
authors.initials: J
authors.lastname: Guillebaud
mesh_terms: D000293:Adolescent; D000328:Adult; D020878:Device Removal / Q000009:adverse effects*; D004638:Emergency Treatment / Q000379:methods; D005260:Female; D006801:Humans; D007435:Intrauterine Devices, Copper / Q000009:adverse effects / Q000145:classification; D008131:London; D010146:Pain / Q000145:classification / Q000209:etiology*; D010147:Pain Measurement; D010342:Patient Acceptance of Health Care; D011247:Pregnancy; D013222:State Medicine; D019415:Torque