The Duraphase penile prosthesis was implanted in 63 patients at 4 investigative sites during clinical trials. This device is a semirigid rod that is bendable and provides good support to the erection. Mechanical complications included 4 instances of cable breakage rendering the device nonfunctional. Of 57 patients questioned 55 were pleased with the results after 4 months. Ease of insertion and exceptional bendability are other features that make this device attractive.