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US 2025/0143759 A1Published application
Patella bone plate and methods of fixation
AssigneeDePuy Synthes Products, Inc.
InventorsDavid L. Helfet, Dean G. Lorich
Life of this patent
Estimating the term…
Abstract
A patella fracture fixation system includes a peripheral rim bone plate that is configured to be implanted along a parapatellar lateral approach. The bone plate can configured to minimize disruption of blood supply to the patella. The bone plate can be augmented with a Krackow suture pattern to assist in stabilization of a comminuted inferior pole.
Claims19
A bone plate comprising a plate body having a plurality of bone fixation holes, wherein the bone fixation holes are arranged in:
- a first row of first bone fixation holes arranged such that a first straight line oriented along a longitudinal direction passes through each of the first bone fixation holes;
- a second row of second bone fixation holes arranged such that a second straight line oriented along the longitudinal direction passes through each of the second bone fixation holes;
- a third row of two and only two third bone fixation holes arranged such that a third straight line oriented along the longitudinal direction passes through each of the third bone fixation holes, wherein the second row is disposed between the first and third rows with respect to a lateral direction that is perpendicular to the longitudinal direction, and wherein no bone fixation holes of the bone plate are aligned with the two third bone fixation holes along the longitudinal direction;
- a first flexible arm that extends between a first one of the second bone fixation holes and a first one of the third bone fixation holes, wherein the first flexible arm is positionally adjustable so as to adjust an orientation of the first one of the third bone fixation holes relative to the first one of the second bone fixation holes;
- and
- a second flexible arm that extends between a second one of the second bone fixation holes and a second one of the third bone fixation holes, wherein the second flexible arm is positionally adjustable so as to adjust an orientation of the second one of the third bone fixation holes relative to the second one of the second bone fixation holes,
- wherein immediately adjacent ones of the first bone fixation holes are spaced from each other a first distance along the first straight line, immediately adjacent ones of the second bone fixation holes are spaced from each other a second distance along the second straight line, immediately adjacent ones of the third bone fixation holes are spaced from each other a third distance along the second straight line, and each of the second and third distances is greater than the first distance.
4 more elements
A bone plate comprising a plate body having a plurality of bone fixation holes, wherein the bone fixation holes are arranged in:
- a first row of a first bone fixation holes arranged such that a first straight line oriented along a longitudinal direction passes through each of the first bone fixation holes;
- a second row of second bone fixation holes arranged such that a second straight line oriented along the longitudinal direction passes through each of the second bone fixation holes;
- a third row of third bone fixation holes arranged such that a third straight line oriented along the longitudinal direction passes through each of the third bone fixation holes;
- a first flexible arm that extends between a first one of the second bone fixation holes and a first one of the third bone fixation holes, wherein the first flexible arm is positionally adjustable so as to adjust an orientation of the first one of the third bone fixation holes relative to the first one of the second bone fixation holes;
- and
- a second flexible arm that extends between a second one of the second bone fixation holes and a second one of the third bone fixation holes, wherein the second flexible arm is positionally adjustable so as to adjust an orientation of the second one of the third bone fixation holes relative to the second one of the second bone fixation holes,
- wherein immediately adjacent ones of the first bone fixation holes are spaced from each other a first distance along the first straight line, immediately adjacent ones of the second bone fixation holes are spaced from each other a second distance along the second straight line, immediately adjacent ones of the third bone fixation holes are spaced from each other a third distance along the third straight line, and the second distance is greater than each of the first and third distances, and
- wherein the first, second, and third bone fixation holes are each configured to receive respective bone fixation elements to secure the bone plate to underlying bone.
5 more elements
Dependencies are inferred from the claim text.