摘要:
A partial rim implant for an acetabulum in a pelvic bone comprises a ridge, a bearing surface, and a fixation surface. The ridge is oriented to replace a labrum. The bearing surface is configured to align with the articulating surface of the acetabulum. The bearing surface extends from the ridge toward the apex of the acetabulum. The fixation surface is configured to fix the implant to a prepared bone surface of the pelvic bone.
摘要:
A cage for facilitating fusion of bones, such as vertebrae, or fusion of adjacent bone surfaces is disclosed. In one form, the cage includes a plurality of spaced apart walls comprising a biodegradable polymeric material (e.g., polycaprolactone); an osteoconductive mineral coating (e.g., a calcium compound) on at least a portion of the walls; and a bioactive agent (e.g., a bone morphogenetic protein) associated with the polymeric material and/or the coating. The bioactive agent is present in amount that induces ossification between the bones or adjacent bone surfaces. The cage may also include a fixation plate connected to at least one of the walls.
摘要:
An implant system for total shoulder arthroplasties, hemi shoulder arthroplasties, and "reverse" total shoulder arthroplasties including a humeral stem having an enlarged head portion with interfaces adapted to removably receive various modular interchangeable components, such as articulating liners, spacers, and adapter inserts. The humeral stem functions as a universal platform that may be used in either conventional or "reverse" total shoulder arthroplasties, as well as hemi shoulder arthroplasties, and may remain implanted in place during a revision in which the implant system is converted between the foregoing configurations, for example.
摘要:
The present invention relates to a system comprising: an intervertebral disc replacement device having first and second members; an insertion handle (800) comprising a shaft (802) a longitudinal bore (804) extending from the proximal end (808) toward the distal end of the shaft (802)and a manipulation feature disposed substantially at the proximal end (808) of the shaft (802); an insertion plate connected with and maintaining the first and second members of the intervertebral disc replacement device in registration with one another for substantially simultaneous insertion into an intervertebral disc space of a spinal column, the insertion plate operable for detachable engagement with the insertion handle (800), the insertion plate including a base having a posteriorly directed surface directed toward the first and second members, and a spaced apart anteriorly directed surface, at least one of the base of the insertion plate and the shaft (802) including a stem, and the other including a bore (804), such that the stem is receivable in the bore (804), and the insertion handle (800) and insertion plate detachably engage one another; and a pushing member (902) hand being slideably receivable within the longitudinal bore (804), wherein the insertion handle (800) is detachable from the insertion plate to facilitate removal of the insertion handle (800) when the intervertebral disc replacement device is positioned within the intervertebral disc space.
摘要:
An expandable fusion device is capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. The fusion device may include a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations.
摘要:
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. Mounting members include, for example, flanges, blades, hooks, and plates. In some embodiments, the orthopedic attachments may be adjustably positionable about the base member or other attachments, thereby providing modularity for assembling and implanting the device, and various securing and/or locking mechanisms may be used between the components of the implant.
摘要:
Systems for interbody fusion of adjacent bone portions may include an expanding implant (100) and related instruments. An expanding implant may be formed as a linkage which is movable between a compact configuration and an expanded configuration. A shaft (110) of the implant may increase and decrease in length to move between the compact and expanded configurations, and an implant width perpendicular to the length may be increased in the expanded configuration. The implant width may increase more in a first direction than a second direction opposite the first direction. An inserter instrument may releasably grasp the spacer and transform the implant between the compact and expanded configurations.
摘要:
A spinal implant inserter having a) an outer sleeve having a bore, and b) a forked inner shaft having a proximal rod and a pair of distal tynes extending therefrom, each distal tyne comprising an engagement feature having a laterally-extending dovetail feature. An assembly comprising the implant inserter and an implant having a pair of mating dovetail features.
摘要:
The present invention provides an implantable joint prosthesis configured to replace a natural joint, and methods for implantation. The prosthesis may include a first component implantable in a first bone, having a first bearing surface, and a second component implantable in a second bone, having a second bearing surface which corresponds to the first bearing surface. Each bearing surface may include a flattened section such that when the bearing surfaces are placed in cooperation with one another in a preferred orientation, the flattened sections are aligned. Alternatively, the bearing surfaces may have and asymmetric configuration, with non-congruent surfaces that may enable correction of deformity. Several types of implantable joint prostheses are disclosed, including: carpometacarpal, metacarpophalangeal, metatarsophalangeal, distal interphalangeal, proximal interphalangeal, ankle, knee, shoulder, and hip.