The invention relates to a plate fixed between two bone parts by way of screws engaged in holes formed in the thickness of said plate. The plate comprises an angled member or rib which is inclined according to an angle of between about 30° and 60° in relation to the plane defined by the plate. The angled member or rib has a hole for engaging a screw and is located in the central part of the width, over a determined part of the length of the plate, so that the screw brings the two bone parts into a compressive position.

Variable angle holes in bone plates that are structured to facilitate the formation of axial compression or tension of a bone, or which can assist in bone distraction. The variable angle hole can extend about a central axis and includes an inwardly extending wedge wall. The variable angle hole can be sized to receive insertion of a fixation element at a location at which a central longitudinal axis of the fixation element is axially offset from the central axis of the variable angle hole by an offset distance at least when the fixation element is initially driven into bone at least in a transverse direction. The wedge wall can be configured to be engaged by a portion of the fixation element in a manner that axially displaces at least one of the bone plate, the fixation element, and/or bone(s) in a direction that can generally reduce or increase the offset distance.

A bone plate having at least one variable angle locking hole is described. The variable angle locking hole allows a bone anchor having a threaded head to be driven into underlying bone while oriented at an angle with respect to a central hole axis of the hole that is within a range of angles at which the head is configured to threadedly mate with the at least one thread of the bone plate. Accordingly, the bone anchor can be driven into the underlying bone until the threaded head threadedly purchases with the bone plate inside the variable angle locking hole.

Periprosthetic bone fixation plates are disclosed including, for example, periprosthetic proximal femur plate, periprosthetic distal femur plate, periprosthetic humerus plate, periprosthetic ring plate, and periprosthetic troch plate. In use, the periprosthetic bone fixation plates are arranged and configured for use in periprosthetic fractures. That is, the periprosthetic plates include one or more features to facilitate positioning and securement of the bone fixation plate to a patients bone that previously received a surgically implanted orthopedic device or implant such as, for example, an intramedullary nail, a hip prosthesis, a knee prosthesis, etc. In use, the one or more features are designed and configured to facilitate avoidance of the previous surgically implanted orthopedic device or implant. In addition, the periprosthetic bone fixation plates are arranged and configured to facilitate plating of a longer working length as compared to existing bone fixation plates (e.g., plating from, for example, femoral condyle to greater trochanter).

The fracture fixation plate (1) is suitable for application to the volar surface of a distal radius, wherein the fracture fixation plate (1) has an elongated body section (2) which has a free proximal end (3) and a distal end (4) on which an ulna head section (5) and a radius head section (6) connect, which diverge distally from one another, wherein the two head sections (5; 6) are each independently connected to the distal end (4) of the body section (2) via a corresponding neck section (51; 61), the body section (2) and the two head sections (5; 6) are provided with a number of threaded holes (7) for receiving bone securing elements (8) and the body section (2) also has an elongate compression hole (9), and the fracture fixation plate (1) has a bone contact surface (10) and an opposing surface (11). The bone contact surface (10) is designed such that it is convex in the region of the ulna head section (5) and the bone contact surface (10) is designed as a curved surface in the region of the radius head section (6).

A bone plate system includes, for example, a bone plate and at least one bone plate hole cap. The bone plate includes a body having a first surface, a bone-engaging surface, and a plurality of through-openings. The bone plate hole cap includes a body having a first surface, a second surface, and a peripheral surface. The bone plate hole cap is securable in at least one of the through-openings in the bone plate. When the bone plate hole cap is secured in the through opening, the second surface of the bone plate hole cap is disposed adjacent to the bone-engaging surface of the bone plate. The bone plate with the bone plate hole cap secured in the through-hole increases the bending strength of a portion of the bone plate across the bone plate hole cap compared to the portion of the bone plate without the bone plate hole cap.

In order to apply, with a simple and easy means, proper pressure between bone segments spaced apart as a result of osteotomy or a bone fracture, without lowering the fixing force at the screw meshing portion, without increasing a dead space, and without increasing the thickness of the plate, the present invention provides a bone plate having an upper face, which is to be in contact with bone, a lower face, which is to be in contact with the bone, and a plurality of holes arranged to receive bone screws and connecting the upper face and the lower face. In at least one of the holes, a portion of an edge, on the upper face, of the hole is formed so as to be raised in the form of a protrusion higher than the upper face around the hole.

The present invention relates to a bidirectional fixation steel plate and a bone shaft fixation system. The bidirectional fixation steel plate comprises a steel plate body, wherein the steel plate body is used to be implanted from a front side of a bone shaft and has a structure matched with the front side of the bone shaft to fixedly fit with a fracture end, the steel plate body is provided with at least two pairs of guide holes for first locking screws to pass through respectively in the structure matched with the front side of the bone shaft, and angles of the guide holes enable the first locking screws passing through to clamp an intramedullary nail together to control rotation and axial stability of the intramedullary nail. The bidirectional fixation steel plate proposed by the present invention may achieve support, anti-rotation and axial stability of the bone shaft fracture end through the cooperation of the first locking screws and the guide holes of the steel plate body provided with specific angles, to further enhance the reliability of fixation after reduction, thereby effectively guaranteeing to assist in stable reduction and healing of the fracture site.

Apparatus and methods are provided for using a plate to fuse bones together, including reducing or stabilizing a fracture or osteotomy. Legs of the plate are inserted into pre-drilled guide holes in one of the bones and one or more screws are inserted through apertures and into another of the bones to secure the plate to the bones. A plate insertion tool can be used to temporarily tension the legs prior to insertion into predrilled guide holes in a bone by bending or pivoting the legs away from the body. A tensioning tool can be used to tension the plate after the legs are inserted into the guide holes in the bone and during the insertion of one or more of the screws.

An orthopedic instrument, comprising a pair of pivotally-connected arms, extending beyond a pivot axis of a first pivot; a pair of feet mounted to ends of the pair of pivotally-connected arms; and a quadrilateral linkage configured to maintain parallelism between the pair of feet over a range of angles and to selectively alter a distance between the pair of feet.