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CLASSICAL & MODIFIED INTERSTITIAL TECHNIQUES

DRAWBACKS

Accurate freehand implantation is difficult

-

positioning often inaccurate

- loss of parallelism

- not reproducible

Perineal templates (Syed, MUPIT, others)

-

high number of needles used

- long distances between template and target (loss

of parallelism, inaccurate positioning)

- impediment for general acceptance:

considerable risk of serious acute/late complications