A fracture fixation system includes an intramedullary nail having a proximal nail hole, wherein an inner surface of the proximal nail hole has a non-circular shape in a plane perpendicular to an axis along which the proximal nail hole extends; a plate having an inner surface for placement against a surface of a bone, the plate defining a proximal plate hole adjacent a proximal end of the plate extending through the plate; and a peg extending along a peg axis and configured for insertion into the proximal nail hole, wherein a body of the peg has an outer surface defining a non-circular shape in a plane perpendicular to the peg axis, the peg further including a lateral end adjacent to the body and configured to engage the proximal plate hole, the lateral end having a reduced cross-section that is smaller than a maximum cross-section of the body of the peg.

A device for implanting a bone fixation system comprises an insertion instrument extending from a proximal end to a distal end, the distal end having an engagement portion for removably engaging a proximal end of a bone plate, the insertion instrument having an elongated channel extending therethrough to permit insertion of a first protection sleeve therethrough, wherein a longitudinal axis of the elongated channel is coaxial with a longitudinal axis of a first opening extending through the bone plate and a first protection sleeve insertable into the elongated channel and guiding insertion of an anti-rotation screw therethrough and through the bone plate, a longitudinal axis of the first protection sleeve being angled with respect to the longitudinal axis of the elongated channel.

An orthopaedic assembly. The orthopaedic assembly includes a first member adapted to be coupled to a bone and an adjustable connector assembly including an adjuster having a threaded end and a tapered end. The assembly also includes an articulation component including a bearing surface and adapted to be coupled to the tapered end of the adjustable connector assembly. The threaded end is adapted to engage the fixation plate.

A device includes an elongated body configured to be coupled to a bone stabilization implant so that, when the bone stabilization implant is mounted to a target bone, the body extends away from the bone stabilization implant at an angle selected so that the elongated body passes into a target portion of bone. The body defines a lumen therein extending to an opening in a distal end of the body. The device also includes a deploying member housed within the lumen of body for movement between a first position and a second position. In addition, the device includes a plurality of wires coupled to the deploying member so that movement of the deploying member through the lumen moves the wires between an insertion position and a deployed position in which the distal ends of the wires penetrate a portion of bone adjacent to the distal end of the body.

The application relates to a bone screw assembly for fixation into a bone, comprising a first screw element with a body including a threaded first end with a first external screw thread having a first handedness and a first lead length. The first screw element comprises an internal thread feature with a second handedness and a second lead length located within a bore within said body. The screw assembly includes a second screw element comprising a second external screw thread with the second handedness and the second lead length. Said second screw element is arranged within said bore and said second external screw thread is engaged with said internal thread feature. The second screw element is movable from a first implantation configuration where the second screw element is arranged completely within said bore and a second implantation configuration where the second screw element protrudes from said bore.

A method of creating a mass-customized femoral bone base plate comprising: (i) establishing anatomical landmarks across a plurality of bone models of a statistical atlas; (ii) establishing instrument landmarks across the plurality of bone models of the statistical atlas; (iii) establishing definitions for a reference plane calculation across the plurality of bone models of the statistical atlas, where the reference plane represents a boundary of a prosthetic implant; (iv) establishing an attachment site for a mass-customized femoral bone base plate using the anatomical landmarks, the instrument landmarks, and the reference plane; and, (v) fabricating the mass-customized femoral bone base plate configured to be attached to a femur, where the attachment sites of the mass-customized femoral bone base plate are predetermined to avoid impingement with the prosthetic implant when implanted.

A system includes an implant and a packaging device assembled with the implant to hold an outer sleeve and a head element of the implant in a desired position relative to one another. The packaging device includes clip arms sized and shaped so that, when the arms are held toward a closed configuration, the implant is housed therebetween in the desired position and proximal ends of the arms form a space via which an insertion device is insertable to be coupled to the implant, and a housing defining a space within which the clip is housed. The housing includes a retaining feature for retaining the clip therein and a camming element which, when a proximal force is exerted on the implant via the insertion device coupled thereto, causes the arms to move away from one toward an open configuration to release the implant therefrom.

A method of creating a mass-customized femoral bone base plate comprising: (i) establishing anatomical landmarks across a plurality of bone models of a statistical atlas; (ii) establishing instrument landmarks across the plurality of bone models of the statistical atlas; (iii) establishing definitions for a reference plane calculation across the plurality of bone models of the statistical atlas, where the reference plane represents a boundary of a prosthetic implant; (iv) establishing an attachment site for a mass-customized femoral bone base plate using the anatomical landmarks, the instrument landmarks, and the reference plane; and, (v) fabricating the mass-customized femoral bone base plate configured to be attached to a femur, where the attachment sites of the mass-customized femoral bone base plate are predetermined to avoid impingement with the prosthetic implant when implanted.

A porous bionic internal fixation device for promoting healing of a fractured bone includes a lag screw in a round rod shape, the lag screw is provided with fixation structures at both ends thereof, and on a body of the lag screw, a plurality of apertures directing laterally or obliquely are provided, and densely distributed micro-holes are provided on the body of the lag screw between the adjacent apertures. When in use, the both ends of the lag screw are respectively located in the bone at opposite sides of the fractured bone, so that the longitudinal direction of the apertures is aligned with the direction of the tensile trabeculae or the compressive trabeculae at the fractured bone, and the position of the apertures corresponds to the fractured bone.

The device has a body with holes to accept the bone screws. The bone screws have a layer of bioresorbable material on a surface portion of the head of the screw contiguous with the shaft. Engagement between the bone screws and the body is initially through the bioresorbable material, which engagement rigidly fixes the relative angular orientation between the bone screws and the body when the device is applied to a bone. As the bioresrobable material is resorbed the angular relation between the bone screws and the body is no longer rigidly fixed, thereby effecting a transformation from rigid osteosysthesis to flexible osteosynthesis to allow micromotion between the bone fragments which promotes healing.