title: GFS Mark II inflatable penile prosthesis: four-year clinical study.
abstract: OBJECTIVE
  The objective of the study was to evaluate the mechanical performance and the patient/partner satisfaction of the GFS Mark II inflatable penile prosthesis (IPP).
  
  
  METHODS
  A total of 138 patients had GFS Mark II IPP implants between October 1988 and December 1991 with a follow-up of twelve to fifty months (mean 31.7 months) were studied. Each patient was evaluated for prosthesis performance and each patient/partner satisfaction was evaluated by a questionnaire and personal interview.
  
  
  RESULTS
  There was only one prosthetic mechanical problem which involved the tubing. There were seven problems requiring explanation; two of which were postoperative infections. Thirteen patients required an addition of normal saline through the resipump as an office procedure. Ninety-three percent of the patients and 98 percent of the partners reported satisfaction with the use of the prosthesis. Men who had a previously inserted penile prosthesis replaced with the GFS Mark II IPP preferred the GFS over the malleable and the self-contained prosthesis, but there was no conclusive preference between the different IPPs.
  
  
  CONCLUSIONS
  This study concludes that the GFS Mark II connectorless IPP has shown few mechanical problems over a four-year period and has a good patient/partner satisfaction. This prosthesis has the additional feature of the resipump to adjust the fluid volume as an office procedure when required.
authors.affiliation: Potency, Inc., North Miami, Florida.
authors.forename: R L
authors.initials: RL
authors.lastname: Fein
mesh_terms: D007172:Erectile Dysfunction / Q000453:epidemiology / Q000523:psychology / Q000601:surgery*; D005069:Evaluation Studies as Topic; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D017060:Patient Satisfaction; D015917:Penile Prosthesis / Q000523:psychology; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012747:Sexual Partners / Q000523:psychology*; D013530:Surgical Wound Infection / Q000453:epidemiology; D013997:Time Factors