bone plating system
DC CAFCFirst Claim
1. A bone plating system for fixation of bone comprising:
- a bone plate having;
an upper surface;
a bone-contacting surface;
at least one first hole passing through the upper and bone-contacting surfaces and having a thread; and
at least one second hole passing through the upper and bone-contacting surfaces;
a first screw having a shaft with a thread for engaging bone and a head with a thread configured and dimensioned to mate with the thread of the first hole; and
a second screw having a shaft with a thread for engaging bone and a head, wherein the first and second screws remain seated in their respective holes for substantially as long as the bone plate is implanted, wherein the bone plate includes a plurality of first and second holes, and a corresponding plurality of first and second screws are provided, and wherein the bone plate includes a head portion configured and dimensioned to conform to a metaphysis of a bone and a shaft portion configured and dimensioned to conform to a diaphysis of a bone and the head portion has only first plate holes.
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Abstract
The present invention relates to a bone plating system and method for fracture fixation of bone. The bone plating system includes a bone plate, at least one locking screw, and at least one non-locking screw. The bone plate has locking holes with threads and non-locking holes. The locking screws have a shaft with a thread for engaging bone and a head with a thread configured and dimensioned to mate with the thread of the locking holes. The non-locking screws have a thread for engaging bone and a non-threaded head. Both the locking and non-locking screws remain seated in their respective holes for substantially as long as the bone plate is implanted. The non-locking screws compress the bone plate against the bone and hold fracture reduction while the locking screws are secured to the plate at a fixed angular relationship. The mixed fixation achieved by this bone plating system and method is particularly useful for treatment of per-articular fractures.
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Citations
18 Claims
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1. A bone plating system for fixation of bone comprising:
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a bone plate having;
an upper surface;
a bone-contacting surface;
at least one first hole passing through the upper and bone-contacting surfaces and having a thread; and
at least one second hole passing through the upper and bone-contacting surfaces;
a first screw having a shaft with a thread for engaging bone and a head with a thread configured and dimensioned to mate with the thread of the first hole; and
a second screw having a shaft with a thread for engaging bone and a head, wherein the first and second screws remain seated in their respective holes for substantially as long as the bone plate is implanted, wherein the bone plate includes a plurality of first and second holes, and a corresponding plurality of first and second screws are provided, and wherein the bone plate includes a head portion configured and dimensioned to conform to a metaphysis of a bone and a shaft portion configured and dimensioned to conform to a diaphysis of a bone and the head portion has only first plate holes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for fracture fixation of bone comprising the steps of:
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reducing the fracture to bring bone fragments in close apposition;
compressing a bone plate against the bone with at least one first fastener to hold the fracture reduction; and
securing at least one second fastener at a fixed angular relationship to the bone plate, wherein the at least one first fastener is inserted before the at least one second fastener and the at least one first fastener and the at least one second fastener remain in bone for substantially as long as the bone plate is implanted. - View Dependent Claims (11, 12, 13)
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14. A bone plating system for fixation of bone comprising:
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a bone plate having;
an upper surface;
a bone-contacting surface;
at least one first hole passing through the upper and bone-contacting surfaces and having a thread; and
at least one second hole passing through the upper and bone-contacting surfaces;
a first screw having a shaft with a thread for engaging bone and a head with a thread configured and dimensioned to mate with the thread of the first hole; and
a second screw having a shaft with a thread for engaging bone and a head, wherein the first and second screws remain seated in their respective holes for substantially as long as the bone plate is implanted, wherein the bone plate includes a plurality of first and second holes, and a corresponding plurality of first and second screws are provided, and wherein the bone plate includes a head portion configured and dimensioned to conform to a metaphysis of a bone and a shaft portion configured and dimensioned to conform to a diaphysis of a bone and wherein the head portion flares outward from the shaft. - View Dependent Claims (15)
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16. A bone plating system for fixation of bone comprising:
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a bone plate having;
an upper surface;
a bone-contacting surface;
at least one first hole passing through the upper and bone-contacting surfaces and having a thread; and
at least one second hole passing through the upper and bone-contacting surfaces;
a first screw having a shaft with a thread for engaging bone and a head with a thread configured and dimensioned to mate with the thread of the first hole; and
a second screw having a shaft with a thread for engaging bone and a head, wherein the first and second screws remain seated in their respective holes for substantially as long as the bone plate is implanted, wherein the bone plate includes a plurality of first and second holes, and a corresponding plurality of first and second screws are provided, and wherein the bone plate includes a head portion configured and dimensioned to conform to a metaphysis of a bone and a shaft portion configured and dimensioned to conform to a diaphysis of a bone and wherein the head portion has a curved surface, includes an anterior fork substantially parallel to an anterior side of the shaft portion, and includes a posterior fork extending out from a posterior side of the shaft portion.
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17. A bone plating system for fixation of bone comprising:
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bone plate having;
an upper surface;
a bone-contacting surface;
at least one first hole passing through the upper and bone-contacting surfaces and having a thread; and
at least one second hole passing through the upper and bone-contacting surfaces;
a first screw having a shaft with a thread for engaging bone and a head with a thread configured and dimensioned to mate with the thread of the first hole; and
a second screw having a shaft with a thread for engaging bone and a head, wherein the first and second screws remain seated in their respective holes for substantially as long as the bone plate is implanted, wherein the bone plate includes a plurality of first and second holes, and a corresponding plurality of first and second screws are provided, and wherein the bone plate includes a head portion configured and dimensioned to conform to a metaphysis of a bone and a shaft portion configured and dimensioned to conform to a diaphysis of a bone and wherein the shaft portion has both first and second plate holes.
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18. A bone plating system for fixation of bone comprising:
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a bone plate having;
an upper surface;
a bone-contacting surface;
at least one first hole passing through the upper and bone-contacting surfaces and having a thread; and
at least one second hole passing through the upper and bone-contacting surfaces;
a first screw having a shaft with a thread for engaging bone and a head with a thread configured and dimensioned to mate with the thread of the first hole; and
a second screw having a shaft with a thread for engaging bone and a head, wherein the first and second screws remain seated in their respective holes for substantially as long as the bone plate is implanted, wherein the bone plate includes a plurality of first and second holes, and a corresponding plurality of first and second screws are provided, and wherein the bone plate includes a head portion configured and dimensioned to conform to a metaphysis of a bone and a shaft portion configured and dimensioned to conform to a diaphysis of a bone and wherein the shaft portion has a trapezoidal shaped cross section in regions between the first and second screw holes for minimizing contact between bone and the bone-contacting surface.
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Specification