Devices and methods for in situ drawing, filtering and seeding cells from the marrow of surrounding bone into a fusion cage without any of the challenges mentioned above. Various implants and devices with aspiration ports that enable in-situ harvesting and mixing of stem cells. These devices may include spinal fusion cages, long bone spacers, lateral grafts and joint replacement devices. Each device utilizes at least one aspiration port for harvesting of stem cell-containing marrow via aspiration from adjacent bony elements.

An orthopaedic surgical system for use in a direct anterior approach orthopaedic surgical hip replacement procedure on a patient's femur includes an insertion instrument having a depth stop with a rotatable guide arm to install a cemented femoral stem component at a desired depth. A method of installing a cemented femoral stem component during performance of a direct anterior approach orthopaedic surgical hip replacement procedure is also disclosed.

The present disclosure includes a polyaxial bone fixation element for use in spinal fixation to interconnect a longitudinal spinal rod with a patient's vertebra. The polyaxial bone fixation element preferably includes a bone anchor, a collet, a body, and a locking cap. The polyaxial bone fixation element preferably enables in-situ assembly. That is, the polyaxial bone fixation element is preferably configured so that in use, the bone anchor may be secured to the patient's vertebra prior to being received within the body. Accordingly, the polyaxial bone fixation element enables a surgeon to implant the bone anchor without the body to maximize visibility and access around the anchoring site. Once the bone anchor has been secured to the patient's vertebra, the body can be snapped-onto the bone anchor. The bone anchor preferably also includes a second tool interface so that a surgical instrument can be directly coupled to the bone anchor.

A bone implant includes a shank for arrangement in a bone and a head arranged proximally on the shank and having a tool receiver for an implantation tool. The shank has a longitudinal axis. A continuous injection channel for injection of bone connection material is formed in the shank and has a proximal inlet opening for bone connection material on the side of the tool receiver. The wall of the shank surrounding the injection channel has a radial offset with respect to the longitudinal axis on the side of the proximal inlet opening. An implantation instrument for a bone implant includes an injection cannula having an inner channel having a longitudinal axis for injection of bone connection material. The inner channel has a distal outlet opening for bone connection material. A wall of the injection cannula surrounding the inner channel has a radial offset with respect to the longitudinal axis.

The present disclosure includes a polyaxial bone fixation element for use in spinal fixation to interconnect a longitudinal spinal rod with a patient's vertebra. The polyaxial bone fixation element preferably includes a bone anchor, a collet, a body, and a locking cap. The polyaxial bone fixation element preferably enables in-situ assembly. That is, the polyaxial bone fixation element is preferably configured so that in use, the bone anchor may be secured to the patient's vertebra prior to being received within the body. Accordingly, the polyaxial bone fixation element enables a surgeon to implant the bone anchor without the body to maximize visibility and access around the anchoring site. Once the bone anchor has been secured to the patient's vertebra, the body can be snapped-onto the bone anchor. The bone anchor preferably also includes a second tool interface so that a surgical instrument can be directly coupled to the bone anchor.

A system and methods for a safe and efficient distributing of bone graft material into an intervertebral disc space are provided. Systems are provided for receiving, removing, and replacing of preloaded load cartridges in a rapid and repeating manner. The systems can also be designed for rapidly delivering the biologics from a single load cartridge and, to even further facilitate a rapid and repeating delivery of biologics, the load cartridge and cartridge tamp can be adapted so that the cartridge tamp can capture and remove the load cartridge after delivery of fusion promoting material in the load cartridge.

A method for delivering multiple substances in a delay fashion to a bone of a patient is provided. The method includes providing a cannulated bone screw, creating an aperture in the skin of a patient, and inserting the bone screw into a bone of the patient through the aperture. The method further includes delivering a first substance into the bone through the bone screw, wherein the first substance changes over time into a solid hardened material, and then delivering a second substance into the bone through the bone screw after the first substance changed into a solid hardened material. The solid hardened material of the first substance may be a permeable material that allows the second substance to transport through, or the second substance may transport through the first substance by diffusion, or may reach a desired location in the bone through pores or cracks in the hardened solid material.

Devices and methods provide for measuring applied pressure on an article, such as a patella construct during a surgical procedure. Embodiments include a clamp having an upper frame arm, a lower frame arm and a clamp assembly, and further include a clamp with a knob assembly and a pressure monitor assembly. Differently sized bushing adapters can be interchangeably employed with a clamp stem to adapt to the relative sizes of objects being clamped.

The present disclosure includes a polyaxial bone fixation element for use in spinal fixation to interconnect a longitudinal spinal rod with a patient's vertebra. The polyaxial bone fixation element preferably includes a bone anchor, a collet, a body, and a locking cap. The polyaxial bone fixation element preferably enables in-situ assembly. That is, the polyaxial bone fixation element is preferably configured so that in use, the bone anchor may be secured to the patient's vertebra prior to being received within the body. Accordingly, the polyaxial bone fixation element enables a surgeon to implant the bone anchor without the body to maximize visibility and access around the anchoring site. Once the bone anchor has been secured to the patient's vertebra, the body can be snapped-onto the bone anchor. The bone anchor preferably also includes a second tool interface so that a surgical instrument can be directly coupled to the bone anchor.

A medical device for treating hip joint osteoarthritis in a human patient by providing at least one artificial hip joint surface. The medical de ice comprises a prosthetic part or a bone plug adapted to be placed in a hole in the pelvic bone and a supporting member connected to said prosthetic part or bone plug, wherein the prosthetic part or the bone plug is adapted to be inserted into said hole from the abdominal side of the acetabulum and oriented, during the insertion, such that the concave interior surface is facing in the direction towards the caput femur. Wherein the medical device comprises an artificial caput femur surface or artificial acetabulum surface, and wherein a largest cross-sectional distance of said artificial caput femur or acetabulum surface is smaller than said bole, such that said artificial caput femur surface can pass through said hole.