5-780.4d:

Your pelvic bone was operated on.

The pelvis is made up of different bones. There are 3 bones on each side which each merge to form one large pelvic bone. A joint connects these two large pelvic bones to the sacrum at the back of the body. The sacrum is part of the lower spine. The two pelvic bones plus the sacrum form a bony pelvic ring or girdle. In front, the two pelvic bones are tightly joined to one another by ligaments and cartilage fiber.

This intervention involved making one or more incisions in your skin.

A drug delivery device was inserted or replaced in your pelvic bone. A drug delivery system is a particular material that contains medication. The drug delivery system usually releases the medication to the surrounding tissue over a long period of time.