摘要:
A vertebral body system and method having a polyaxial fastener receiving member, adjustable width plates and a pedicle screw having a pedicle threaded portion and a threaded portion for fastening to the vertebral body.
摘要:
A total ankle replacement system, novel surgical method for total ankle replacement, and novel surgical tools for performing the surgical method are described. The total ankle replacement system includes the calcaneus in fixation of a lower prosthesis body, thereby significantly increasing the amount of bone available for fixation of the lower prosthesis body and allowing the lower prosthesis body to be anchored with screws. The total ankle replacement system further includes a long tibial stem which can also be anchored into the tibia with, for example, screws, nails, anchors, or some other means of attachment. The novel surgical arthroscopic method allows introduction of ankle prostheses into the ankle joint through an exposure in the tibial tubercle. Various novel surgical instruments, such as a telescoping articulating reamer and a talo-calcaneal jig, which facilitate the novel surgical method, are also described.
摘要:
A joint between two bone segments is fused by passing an elongated, rectilinear bone fusion device over a guide pin across the joint and into tight engagement within bores formed in the bone segments, to thereby restrict movement of the elongated bone fusion device across the joint. The elongated, rectilinear bone fusion device also provides bony in-growth within the bores along the exterior surface of the bone fusion device.
摘要:
A resorbable tissue scaffold fabricated from bioactive glass fiber forms a rigid three-dimensional porous matrix having a bioactive composition. Porosity in the form of interconnected pore space is provided by the space between the bioactive glass fiber in the porous matrix. Strength of the bioresorbable matrix is provided by bioactive glass that fuses and bonds the bioactive glass fiber into the rigid three-dimensional matrix. The resorbable tissue scaffold supports tissue in-growth to provide osteoconductivity as a resorbable tissue scaffold, used for the repair of damaged and/or diseased bone tissue.
摘要:
First and second bone segments separated by a fracture line or joint can be fixated or fused by creating an insertion path through the first bone segment, through the fracture line or joint, and into the second bone segment. An anchor body is introduced through the insertion path. The distal end of the anchor body is anchored in the interior region of the second bone segment. An elongated implant structure is passed over the anchor body to span the fracture line or joint between the bone segments. The proximal end of the anchor body is anchored to an exterior region of the first bone segment to place, in concert with the anchored distal end, the anchor body in compression, to thereby compress and fixate the bone segments relative to the fracture line or joint.
摘要:
The present disclosure relates to a dynamic bioactive bone graft material and a method of handling the material to prepare an implant. In one embodiment, a method of preparing a dynamic bioactive bone graft implant is provided. The method includes the step of providing a porous, fibrous composition of bioactive glass fibers, wherein the fibers are characterized by fiber diameters ranging from about 5 nanometers to about 100 micrometers, and wherein the porosity of the matrix ranges from about 100 nanometers to about 1 millimeter. The porous, fibrous composition is introduced into a mold tray, and a shaped implant is created using the mold tray. The composition may be wetted with a fluid such as saline or a naturally occurring body fluid like blood prior to creating the shaped implant. In another embodiment, the porous, fibrous composition is provided with the mold tray as a kit.
摘要:
Assemblies of one or more implant structures make possible the achievement of diverse interventions involving the fusion and/or stabilization of lumbar and sacral vertebra in a non-invasive manner, with minimal incision, and without the necessitating the removing the intervertebral disc. The representative lumbar spine interventions, which can be performed on adults or children, include, but are not limited to, lumbar interbody fusion; translaminar lumbar fusion; lumbar facet fusion; trans-iliac lumbar fusion; and the stabilization of a spondylolisthesis.
摘要:
A dental bone implant that comprises a first fitted bone graft sized and shaped to fit tightly to a buccal surface of a periodontal alveolar bone around at least one tooth and to reconstruct at least a portion of one or more periodontal bone defect and a second fitted bone graft sized and shaped to fit tightly to a lingual/palatal surface of a periodontal alveolar bone around at least one tooth and to reconstruct at least an additional portion of at least one periodontal bone defect. The portion and the other portion complementary cover the one or more periodontal bone defects.
摘要:
Systems and methods for providing deeper knee flexion capabilities, more physiologic load bearing and improved patellar tracking for knee prosthesis patients. Such systems and methods include (i) adding more articular surface to the antero-proximal posterior condyles of a femoral component, including methods to achieve that result, (ii) modifications to the internal geometry of the femoral component and the associated femoral bone cuts with methods of implantation, (iii) asymmetrical tibial components that have an unique articular surface that allows for deeper knee flexion than has previously been available, (iv) asymmetrical femoral condyles that result in more physiologic loading of the joint and improved patellar tracking and (v) modifying an articulation surface of the tibial component to include an articulation feature whereby the articulation pathway of the femoral component is directed or guided by articulation feature.
摘要:
An intervertebral implant (300) for insertion into an intervertebral disc space between adjacent vertebral bodies or between two bone portions. The implant includes a spacer portion (310), a plate portion (330) operatively coupled to the spacer portion and one or more blades (350) for securing the implant to the adjacent vertebral bodies. The blades preferably include superior and inferior cylindrical pins (360) for engaging the adjacent vertebral bodies. The implant may be configured to be inserted via a direct lateral transposals approach. Alternatively, the implant may be configured for insertion via an anterior approach.