A device for interstitial therapy of low pelvic tumours—the Hammersmith perineal hedgehog

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Abstract
The freehand production of accurate volume or multiplane implants for interstitial therapy is difficult. The size of tumor that may be treated in this fashion is therefore limited. A solution to this problem is to use a perspex template to guide the implant and maintain its configuration during treatment. Experience using such a template (the Syed-Neblett template) in treating pelvic tumors is described. The device was adapted for use with the iridium wire available in the UK. Two new templates were designed which are more versatile for treating tumors in this area. Ten patients were treated and with appropriate analgesia, antibiotic cover and nursing care the implant was well tolerated.