Bone anchoring nail

A method of anchoring a bone anchoring nail to a bone, the bone anchoring nail comprising a shaft with a free end, a head opposite to the free end of the shaft along a longitudinal axis of the shaft, the head having a substantially U-shaped recess forming two legs for accommodation of a rod-shaped element between the two legs, each of the legs extending in a direction away from the free end of the shaft to a free end of the respective leg, a locking element configured to secure to the head to lock a rod-shaped element in the U-shaped recess, a longitudinal bore extending into the shaft and opening towards at least one of the head and the free end of the shaft, the shaft comprising a shaft section having a first end and a second end that are spaced apart along the longitudinal axis, the first end closer to the head than the second end, wherein the shaft section comprises a plurality of openings extending through a wall of the shaft and being in communication with the bore, and wherein the shaft has a spherical segment-shaped end section and the head is a separate part which is provided with a seat for pivotably holding the end section,

• the method comprising:
• creating a core hole in a bone;
• and
• pushing the shaft section into the core hole without threading.

A bone anchoring nail comprising:

• a shaft with a free end,
• a head opposite to the free end of the shaft along a longitudinal axis of the shaft, the head having a substantially U-shaped recess forming two legs for accommodation of a rod-shaped element between the two legs, each of the legs extending in a direction away from the free end of the shaft to a free end of the respective leg,
• a locking element configured to secure to the head to lock a rod-shaped element in the U-shaped recess,
• a longitudinal bore extending into the shaft and opening towards at least one of the head and the free end of the shaft,
• the shaft comprising a shaft section having a first end and a second end that are spaced apart along the longitudinal axis, the first end closer to the head than the second end,
• wherein the shaft section comprises a plurality of openings extending through a wall of the shaft and being in communication with the bore, and
• wherein the shaft tapers from the shaft section toward the free end of the shaft, and an entire exterior surface of the shaft is threadless from the first end of the shaft section to the free end of the shaft, and
• wherein the shaft section comprises an annular ring portion between a pair of adjacent openings of the plurality of openings that are spaced apart from each other in a direction of the longitudinal axis of the shaft.

A bone anchoring nail comprising:

• a shaft with a free end,
• a head opposite to the free end of the shaft along a longitudinal axis of the shaft, the head having a substantially U-shaped recess forming two legs for accommodation of a rod-shaped element between the two legs, each of the legs extending in a direction away from the free end of the shaft to a free end of the respective leg,
• a locking element configured to secure to the head to lock a rod-shaped element in the U-shaped recess,
• a longitudinal bore extending into the shaft and opening towards at least one of the head and the free end of the shaft,
• the shaft comprising a shaft section having a first end and a second end that are spaced apart along the longitudinal axis, the first end closer to the head than the second end,
• wherein the shaft section comprises a plurality of openings extending through a wall of the shaft and being in communication with the bore,
• wherein at least the shaft section is threadless along its entire exterior surface,
• wherein the shaft tapers from the shaft section toward the free end of the shaft, and a greatest radial dimension of the shaft from the first end of the shaft section to the free end of the shaft is located along the shaft section, and
• wherein the shaft section comprises an annular ring portion between a pair of adjacent openings of the plurality of openings that are spaced apart from each other in a direction of the longitudinal axis of the shaft.