Abstract:
In the use of devices and methods for measuring applied pressure on an article, such as a patella construct during a surgical procedure, differently sized and configured clamp bushing adapters can be interchangeably employed with, and removably secured to, a clamp stem to adapt to the relative sizes of objects being clamped. Embodiments of an installation cap can also be provided to assist with proper setup and operation by, for example, removably covering spike elements associated with a working surface of embodiments of the device.
Abstract:
A method for performing an acetabular arthroplasty in an acetabulum of an ilium may include locating an iliac canal of the ilium. The iliac canal extends from the surface of the acetabulum generally toward a portion of the iliac ridge. An impacting step impacts a non-rotating bone removal tool aligned along the iliac canal such that the non-rotating bone removal tool removes bone within the iliac canal and forms a bone void. Another step secures a fixation implant within the canal void. An acetabular implant is installed within the acetabulum over the fixation implant.
Abstract:
An acetabular prosthetic device for implantation in an iliac canal and acetabulum of an ilium comprises a stem and an acetabular component. The stem may be configured to be implanted in the iliac canal. The acetabular component may be configured to be implanted in the acetabulum and fixed to the stem. The acetabular component may further comprise a connection portion to adjustably connect the acetabular component to the stem such that the acetabular component is configured to be oriented in a plurality of orientations before being fixed to the stem.
Abstract:
An acetabular prosthetic device for implantation in an iliac canal and acetabulum of an ilium comprises a stem and an acetabular component. The stem may be configured to be implanted in the iliac canal. The acetabular component may be configured to be implanted in the acetabulum and fixed to the stem. The acetabular component may further comprise a connection portion to adjustably connect the acetabular component to the stem such that the acetabular component is configured to be oriented in a plurality of orientations before being fixed to the stem.
Abstract:
The present invention relates to a tibial prosthesis useful in knee replacement surgeries. The prosthesis includes one or more cement introduction ports which may be used to deliver and control delivery of bone cement to a prosthesis - bone interface after the prosthesis has been positioned on a resurfaced area of a tibia bone. The prosthesis is suitable for implantation using arthroscopic as well as open surgical procedures. The prosthesis may be used as a unicondylar implant in either compartment of the knee or in both compartments of the knee.
Abstract:
The present invention provides an implant for use in fusing adjacent bony structures. The implant comprises a plurality of pieces of bone and a flexible mechanism including one or more flexible, elongate, biocompatible connectors interconnecting the pieces of bone.
Abstract:
An apparatus and method for distracting, in a given direction, and supporting two tissue surfaces. A plurality of wafers are consecutively inserted between the two tissue surfaces to create a column of wafers. The column of wafers is oriented between the tissue surfaces so as to expand in the given direction as the wafers are consecutively added to the column.
Abstract:
A prosthetic joint apparatus (10, 50, 78) for replacement of a damaged natural joint in a patient's body includes a first prosthetic component (12, 52, 80) for securing to a first bone and a second prosthetic component (14, 54, 82) for securing to a second bone. The first and second prosthetic components have engaging, articulating surfaces to permit relative movement between the first bone and the second bone. A first membrane (28, 62, 88) is attached to the first prosthetic component between an intra-articular section (A) and an extra-articular section (B) of that first prosthetic component. The second membrane (30, 64, 94) is attached to the second prosthetic component between an intra-articular section (A) and an extra-articular section (B) of that second prosthetic component. The first and second membranes are impermeable to wear debris and prevent migration of any wear debris from the intra-articular sections (A) to the extra-articular sections (B) of the prosthesis (10, 50, 78).
Abstract:
The invention relates to an augment device for a joint endoprosthesis, in particular a tibial augment for a knee joint endoprosthesis, comprising a sleeve (10) surrounding a channel (11) extending through the sleeve (10). The sleeve (10) is formed of porous material (2) for ingrowth of bony material, the sleeve (10) comprising an inner face (14) and an outer face (15). The sleeve (10) further comprises a wall (3) surrounding the channel (11), the wall (3) being made of solid material and forming a sandwich structure with the porous material (2), wherein the wall (3) forms a bulkhead between the inner face (14) and the outer face (15). Thereby, the bulkhead wall (3) will stop inflow of any cement across the sleeve (10) from its inner (14) to its outer face (15). The porous material (3) on the outer face (15) will be kept free from cement and its capability to promote bone ingrowth is reliably preserved. The augment devices are preferably provided as a set having different sizes and straight or stepped bottoms for improved versatility and maximum preservation of natural bone matter.
Abstract:
Systems, devices, and methods are provided for orthopedic implants. The implants may include a base member, such as an acetabular shell or an augment, that is configured to couple with an augment, flange cup, mounting member, or any other suitable orthopedic attachment. An augment provided for an acetabular implant may be adjustably positionable around the implant. An implant may have one or more slots that mate with connections on the augment and allow the augment to move within the slot. An augment may be translated, rotated, or moved in any other way to achieve a desired orientation prior to locking the augment in place relative to the implant. The augment may be locked by a screw or other locking mechanism that holds the augment in place. The locking mechanism may be releasable to allow for repositioning of the augment.