Example embodiments relate to systems and apparatuses for securing surgically implantable implantation rods, comprising a first body having a recessed portion formed by a first surface of the first body, a second body having a recessed portion formed by a first surface of the second body, and a connecting member having an elongated body defining a common longitudinal axis for the first body and the second body, the connecting member receivable in the recessed portion of the first body and the recessed portion of the second body. The connecting member is operable to cooperate with the first body to restrict movement of the first body relative to the second body about the common longitudinal axis when engaged in a substantially locked position, and the first body is moveable relative to the second body when disengaged from the substantially locked position.