Tied or Bound

How was St. Sebastian tied to the column or stake or tree? This may be a moot point, but the manner in which the martyr was secured runs the gamut of possibilities from the Renaissance through the XX Century and affects the composition of each and every painting. The tying or binding of the martyr-saint, as noted, assumes a number of variations. The most popular variations are:

1) St. Sebastian's hands bound together behind him, his feet bound and his body tied to a column or stake or tree is not a common representation--e.g., Giovanni de Campis (XV^th C.) (See: Figure 27), or Giovanni Bellini (1460-1464) (See: Figure 28),