Screws configured to engage bones, and methods of attaching implants to skeletal regions
First Claim
Patent Images
1. A screw configured to directly engage a bone, the screw comprising:
- a shaft that is at least partially threaded;
at least one pore extending into the shaft and configured to receive bone structure grown from the bone to enhance union of the screw with the bone.
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Abstract
The invention includes screws configured to directly engage bones, with such screws including pores configured to receive bone structure grown from the bone to enhance union of the screw with the bone. The screws can be, for example, pedicle screws, and in some aspects can have bone-growth-stimulating material and/or bone cement within the pores. The invention also includes methods of attaching implants to skeletal regions. Such methods can include screwing a porous screw into the bone, allowing bone structure to grow from the bone into the porous screw, and subsequently fastening an implant to the porous screw.
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Citations
37 Claims
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1. A screw configured to directly engage a bone, the screw comprising:
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a shaft that is at least partially threaded;
at least one pore extending into the shaft and configured to receive bone structure grown from the bone to enhance union of the screw with the bone. - View Dependent Claims (2, 3, 4, 5, 6)
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- 7. A pedicle screw having one or more pores extending therein, and having one or both of bone cement and bone-growth-stimulating material within at least one of said one or more pores.
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15. A method of attaching an implant construction to a skeletal structure, comprising:
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screwing one or more porous screws into the skeletal structure;
providing bone cement within at least one pore of at least one of the porous screws;
at least partially securing said at least one of the porous screws to the skeletal structure with the bone cement; and
fastening the implant construction to the one or more porous screws. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. A method of attaching an implant construction to a skeletal region, comprising the following steps in the following sequence:
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screwing one or more porous screws into a skeletal structure;
waiting a period of time for bone structure to grow from the skeletal structure into one or more pores of the one or more porous screws; and
fastening the implant construction to the one or more porous screws. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification