A tibial trial insert system includes a bearing component having a superior articulating surface for articulation with a distal femoral surface, a plate component having an inferior fixation surface for fixation to a proximal tibia, and an adjustment arrangement for adjusting a proximal/distal spacing between the bearing component and the plate component. The adjustment arrangement includes an adjustment device having a superior connector element that engages an inferior surface of the bearing component, an inferior base element adapted to be placed upon a superior surface of the plate component, and a telescopic mechanism coupled to the connector element and the base element. The telescopic mechanism can adjust a thickness of the adjustment device. At least one shim is insertable between the superior surface of the plate component and an inferior surface of the base element for adjusting a height level of the adjustment device relative to the plate component.

The invention relates to an elbow prosthesis implant having a forearm stem (1) an upper arm stem (2), and a shaft (3) fixed to the upper arm stem (2) hingedly connecting the stems (1, 2) to each other, and an insert (9) is arranged between the shaft (3) and an inner surface (1c) of a hole (1a). The insert has an axial hole (10), and an outer cover (4) is attached to the insert (9), on which first (31) and second covering plates (32) are oppositely arranged. and a forearm stem opening (43) is formed, and the flange (31p, 32p) of the holes (31f, 32f) is welded to the flange (10p) of the axial hole (10), the flange (43p) of the opening (43) of the forearm stem (1) is welded to the forearm stem (1) along the respective flanges (31p, 32p, 10p, 43p) by a continuous scam.

An improved modular rotational device includes a first and second threaded coupler for affixation along the stem of an endoprosthetic device, for example, a humeral prosthesis or a femoral prosthesis. The rotational device axis of rotation is coaxial with the stem, and its axis of rotation is located in close proximity to the intramedullary stem of the prosthesis or in close proximity to the distal articulation of the prosthesis. A housing has a proximal and distal end with an axial bore therethrough for receiving an elongated stem of the device. A lobe ring may be utilized to limit the axis of rotation of the device. Additional endoprosthetic devices may be attached to male or female threaded couplers, or to Morse tapers. A plurality of suture attachments facilitates attachment of soft tissue thereto.

An improved modular rotational device includes a first and second threaded coupler for affixation along the stem of an endoprosthetic device, for example, a humeral prosthesis or a femoral prosthesis. The rotational device axis of rotation is coaxial with the stem, and its axis of rotation is located in close proximity to the intramedullary stem of the prosthesis or in close proximity to the distal articulation of the prosthesis. A housing has a proximal and distal end with an axial bore therethrough for receiving an elongated stem of the device. A lobe ring may be utilized to limit the axis of rotation of the device. Additional endoprosthetic devices may be attached to male or female threaded couplers, or to Morse tapers. A plurality of suture attachments facilitates attachment of soft tissue thereto.

The improved endoprosthetic device surface treatment encourages soft tissue attachment thereto. A porous mesh surface treatment creates on an outer surface of the endoprosthetic device a three-dimensional surface structure similar to cancellous bone. Suture attachment features are provided at various locations around the treated surface structure to initially affix a vascularized soft tissue to the treated surface. As the patient heals the soft tissue grows and infiltrates the porous mesh surface to achieve an attachment strength substantially equal to the surrounding tissue.