Abstract: A prosthetic knee system includes a tibial tray, a non-rotating tibial insert, and a rotating tibial insert. The non-rotating tibial insert and the rotating tibial insert are selectively couplable to the tibial tray such that a fixed or a mobile orthopaedic prosthesis may be configured. In some embodiments, the tibial tray may be a fixed or mobile tibial tray. Additionally, in some embodiments, the prosthetic knee system may include a femoral component.

Abstract: Two spacer components and a retaining ring are part of an orthopaedic system. The system may also include trial or implant stem components that are inserted or implanted in the proximal and distal ends of the long bone. One spacer segment has a male portion and the other spacer segment has a transverse female slot. The male portion and female slot are positioned to allow the male portion to be moved into and out of the female slot in a direction other than the proximal-distal direction. The retaining ring is then threaded into a locked position to limit relative movement between the male portion and female slot. The spacer segments can thus be connected after the segments have been connected to the native bone without damaging the soft tissue at the native bone through distraction.

Abstract: An intercalary prosthesis spans a space in the shaft of a long bone between native proximal and distal ends of the long bone. The intercalary prosthesis has first and second intercalary segments connected to proximal and distal stem components. The stem components are implanted in the proximal and distal ends of the long bone. One of the intercalary segments has a male dovetail and the other has a female dovetail. The male and female dovetails are positioned to allow the male dovetail to be moved into the female dovetail in a direction other than the proximal-distal direction. The intercalary segments can thus be connected after the segments have been implanted without damaging the soft tissue at the native bone through distraction. The intercalary segments and stem components are provided as part of a kit. The method of implanting the intercalary prosthesis is also disclosed.

Abstract: A modular implant system allows a surgeon to secure an implant assembly to thee diaphysis of a long bone. The system includes a set of anatomically-designed diaphyseal fitting modular implant components. One end of each diaphyseal implant component is a Morse taper post for connection to another implant component such as a modular articular component, a segmental component or an intercalary component. The other end of each diaphyseal component is a tapered porous surface. In some sizes, the tapered porous surface includes a plurality of steps. The tapered porous surface is received with a tapered bore in the bone diaphysis that is prepared to match the size and shape of the tapered porous surface. The diaphyseal implant is easy to insert and remove, does not bind before fully seating, is designed to prevent stress shielding and provides the surgeon with a host of stem options with its modularity.

Abstract: A modular implant system includes a set of anatomically-designed diaphyseal fitting and filling modular implant components and adapters for connection to another implant component such as a modular articular component, a segmental component or an intercalary component. The other end of each diaphyseal component is a tapered porous surface. The tapered porous surface is received with a tapered bore in the bone diaphysis that is prepared to match the size and shape of the tapered porous surface. The diaphyseal implant is easy to insert and remove, does not bind before fully seating, and is designed to prevent stress shielding. The diaphyseal sleeve eliminates the long lever arm created when fixation occurs only at the tip of the stem, and should therefore eliminate related stem loosening.

Abstract: A modular implant system includes a set of anatomically-designed diaphyseal fitting and filling modular implant components and collars. The diaphyseal component connects with a selected intramedullary stem and with a selected collar component. The collar component connects to another implant component such as a modular articular component, a segmental component or an intercalary component. The diaphyseal component has a tapered porous surface that is received with a tapered bore in the bone diaphysis that is prepared to match the size and shape of the tapered porous surface. The collar component has a porous surface for tissue ingrowth, such as the periosteum, to seal the intramedullary canal. The diaphyseal implant is easy to insert and remove, does not bind before fully seating to prevent stress shielding, and eliminates the long lever arm created when fixation occurs only at the tip of the stem, and should eliminate related stem loosening.

Abstract: A comprehensive modular implant system is provided that is especially adapted for limb preservation. The modular components of the system can be combined to perform proximal, distal, mid-shaft, or total long bone replacement. Each replacement component is connected by a Morse taper engagement. The Morse taper engagement can be augmented by interlocking anti-rotation features between adjacent components. Certain components are configured to form part of a skeletal joint, while other components are configured for engagement within existing portions of the long bone. A number of segmental components operate as spacers for spanning the length of a removed section of bone. Certain segmental components are provided in several lengths, with one group of lengths increasing in 5 mm increments. Combinations of the segmental components can accommodate replacement lengths from 25 mm to 170 mm in 5 mm increments.

Abstract: An adjustable prosthesis includes an actuator for adjusting the prosthesis subsequent to surgical implantation thereof. The actuator is activated by application of an trans-cutaneous signal. A method of operating an adjustable prosthesis is also disclosed.

Abstract: A modular knee implant system allows a surgeon to select between several different styles of distal femoral implant components and several different styles of stem extensions while also allowing for use of a metaphyseal component. The metaphyseal component can be a universal one that is usable with all of the styles of distal femoral implant components through use of an adapter. A second adapter allows for use of stem extensions with different types of connectors with the metaphyseal component. A separate metaphyseal component could also be provided with a distal Morse taper post to mate with a distal femoral component having a proximal Morse taper bore. The metaphyseal component may have an outer surface that is configured to maximize contact area with the patient's bone, and may have a surface finish over a substantial part of its overall length that is conducive to bone ingrowth.

Abstract: Two spacer components and a retaining ring are part of an orthopaedic system. The system may also include trial or implant stem components that are inserted or implanted in the proximal and distal ends of the long bone. One spacer segment has a male portion and the other spacer segment has a transverse female slot. The male portion and female slot are positioned to allow the male portion to be moved into and out of the female slot in a direction other than the proximal-distal direction. The retaining ring is then threaded into a locked position to limit relative movement between the male portion and female slot. The spacer segments can thus be connected after the segments have been connected to the native bone without damaging the soft tissue at the native bone through distraction.

Abstract: A tool, system and method for separating connected orthopaedic components are disclosed. The system includes two orthopaedic components that are connected end to end. One of the orthopaedic components has a notch that receives a cam carried by the tool. The notch and cam are sized and shaped so that when the cam is turned, the cam forces the two components apart. The invention is particularly useful when Morse tapers are used to connect the components. The invention can be used with the modular orthopaedic implants as well as with modular trials used intraoperatively. The cam can be removably mounted on the tool.

Abstract: An intercalary prosthesis spans a space in the shaft of a long bone between native proximal and distal ends of the long bone. The intercalary prosthesis has first and second intercalary segments connected to proximal and distal stem components. The stem components are implanted in the proximal and distal ends of the long bone. One of the intercalary segments has a male dovetail and the other has a female dovetail. The male and female dovetails are positioned to allow the male dovetail to be moved into the female dovetail in a direction other than the proximal-distal direction. The intercalary segments can thus be connected after the segments have been implanted without damaging the soft tissue at the native bone through distraction. The intercalary segments and stem components are provided as part of a kit. The method of implanting the intercalary prosthesis is also disclosed.

Abstract: A tool, system and method for separating connected orthopaedic components are disclosed. The system includes two orthopaedic components that are connected end to end. One of the orthopaedic components has a notch that receives a cam carried by the tool. The notch and cam are sized and shaped so that when the cam is turned, the cam forces the two components apart. The invention is particularly useful when Morse tapers are used to connect the components. The invention can be used with the modular orthopaedic implants as well as with modular trials used intraoperatively. The cam can be removably mounted on the tool.

Abstract: A tool, system and method for separating connected orthopaedic components are disclosed. The system includes two orthopaedic components that are connected end to end. One of the orthopaedic components has a notch that receives a cam carried by the tool. The notch and cam are sized and shaped so that when the cam is turned, the cam forces the two components apart. The invention is particularly useful when Morse tapers are used to connect the components. The invention can be used with the modular orthopaedic implants as well as with modular trials used intraoperatively. The cam can be removably mounted on the tool.

Abstract: A comprehensive modular implant system is provided that is especially adapted for limb preservation. The modular components of the system can be combined to perform proximal, distal or total long bone replacement. Each replacement component is connected by a Morse taper engagement. The Morse taper engagement can be augmented by interlocking anti-rotation features between adjacent components. Certain components are configured to form part of a skeletal joint, while other components are configured for engagement within existing portions of the long bone. A number of segmental components operate as spacers for spanning the length of a removed section of bone. Certain segmental components are provided in several lengths, with one group of lengths increasing in 5 mm increments. Combinations of the segmental components can accommodate replacement lengths from 25 mm to 170 mm in 5 mm increments.