Brachytherapy devices include a respective flexible elongate tether with an external free tail end that has an opposing end that is attached to a proximal end portion of the corresponding strand. The tethers can be color-coded to match a color associated with the corresponding strand and/or radioactive material to facilitate visual correspondence for redeployment when a strand is in an undesired implanted location. Grids with color-coded rows may also be used to facilitate surgical placement and/or identification of respective strand/tether pairs.