Bone anchoring device

A method for anchoring a rod to a bone or vertebra using a bone anchoring device comprising a bone anchoring element comprising a shank for anchoring in the bone or vertebra and a head, a receiving part connectable to the head of the bone anchoring element, the receiving part comprising two legs that define a channel for the rod, a rod receiving member separable from the receiving part and positionable in the channel, the rod receiving member comprising an upper surface and a lower surface that define a longitudinally extending passage for receiving the rod, and a fixation member, the method comprising:

• anchoring the shank of the bone anchoring element to bone;
• adjusting an angular position of the receiving part relative to the shank when the head is in the receiving part;
• inserting the rod receiving member into the channel while the rod extends through the passage, such that the upper and lower surfaces are respectively configured to restrict upward and downward movement of the rod in the passage, and the rod receiving member is adjustable from a first configuration where the passage is unobstructed and the rod is movable longitudinally through the passage, to a second configuration where an engagement surface attached to other portions of the rod receiving member is advanced axially into the passage to engage the rod while a rotational orientation of the engagement surface remains constant to restrict movement of the rod in the passage;
• engaging the fixation member with the legs to hold the head of the bone anchoring element and the rod in the receiving part.