Abstract: A spacer device for the two-step treatment of prosthesis infections, made from biologically compatible and porous material designed to allow the possibility of adding pharmaceutical products, active and/or therapeutic ingredients, includes a first portion designed to be fixed to a corresponding bone bed remaining from a previous implant, and a second portion designed to be inserted in a corresponding articular area of the patient, the first portion and the second portion being attached by adjustable connecting means.

Abstract: A method for replacing a joint surface, which includes resecting a first portion of the joint surface to create a wall surface and inner resected surface. The wall surface (2006) separates the inner resected surface and a non-resected portion of the joint surface. Further included in the method is cutting a concave groove having a first radius into the wall surface, and engaging the concave groove with a periphery of a joint prosthesis. The periphery includes a second radius that is substantially the same as the first radius of the concave groove.

Abstract: 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.

Abstract: A collar arranged to couple to a prosthetic component for implantation at the end of a long bone, the prosthetic component having a distal portion arranged to couple to the bone and a proximal neck portion arranged to couple to an articulation component. The collar comprises a plate including a neck hole to receive a neck portion, such that the collar can rotate about the neck portion. The collar further comprises a plurality of attachment portions for coupling the plate to bone fragments or soft tissues. The collar is lockable to the neck portion to prevent further rotation. A prosthesis comprising a combination of a collar, a prosthetic component and an articulation component, and a surgical method of using the collar are also disclosed.

Abstract: A bone implant is disclosed. The implant comprises a body having a bone contact surface and an articulation surface. A first flange extends longitudinally from the bone contact surface. The flange defines a first screw hole configured to receive a targeted screw therethrough. The targeted screw couples the implant to a bone.

Abstract: An implantable device system includes an implantable device, such as an annuloplasty ring, for controlling at least a shape and/or size of a heart valve annulus. The implantable device includes an arcuate body and an adjustment system configured to adjust the shape and/or size of the arcuate body. An adjustment tool is configured to be coupled to the adjustment system so that the adjustment tool can be used to activate and control adjustment of the arcuate body. A sensor system is configured to be coupled to the implantable device. The sensor system includes a first sensor configured to measure physiological data at an inflow portion of the valve annulus when the implantable device is implanted into the valve annulus, and a second sensor configured to measure physiological data at an outflow portion of the valve annulus when the implantable device is implanted into the valve annulus.

Abstract: An introducer for deploying an implantable medical device such as a stent (60), stent graft (80) or other similar device is provided with an outer sheath (132,232) which is provided with a series of internally longitudinally extending channels (136. 236) and interdigitating protrusions (134, 234) extending therein. At least on stent ring (0) of the medical device is provided with one or more barbs (104) which point radially outwardly of the device, including when this is compressed onto the introducer. The barbs (104) lie within the channels (136, 236) which the remainder of the medical device is retained in its compressed form by the elongate protrusions (134, 234). The channels (136, 236) allow for the provision of relatively stiff barbs (104). The barbs (104) can be better suited to ensuring the correct placement of the medical device than flexible barb arrangements.

Abstract: This orthopedic implant includes a polymer substrate with an outer surface intended to be secured to a bone tissue. The outer surface is covered with metal particles including titanium. The particles include large primary particles and small secondary particles. The primary particles and the secondary particles are evenly distributed over the outer surface.

Abstract: An implantable orthopedic knee prosthesis includes a component that is configured to be coupled to a surgically-prepared bone. A fixation side of the component includes a fixation surface that has an angled cement pocket formed therein.

Abstract: This disclosure presents various embodiments of a transforaminal intersomatic cage for an intervertebral fusion graft, and an instrument and method for implanting the cage, an embodiment of the cage having a body in the shape of a circular arc and comprising a lateral concave surface, a lateral convex surface, a straight upper surface, a straight lower surface and an end wall having at least one hole, called the end hole, designed to receive a rod of an instrument for implanting the cage between the vertebrae, wherein: the end hole has an orientation that is more or less tangential to the circular arc described by the body; the extremity opposite to the end wall of the body includes a return part extending the body toward the center of the circle on which the circular arc described by the body lies.

Abstract: Systems, devices, and methods are described for providing orthopedic knee inserts. The orthopedic knee inserts include a surface portion having a lip configured to couple with a mating member of a tibial component, where the lip has recesses that define non-continuous contact regions between the lip and the mating member of the tibial component. Alternatively, or additionally, in certain embodiments the mating member includes a shelf for mating with an insert, the mating member having a plurality of splines disposed along the shelf that form non-continuous contact regions between the mating member and the insert.

Abstract: A percutaneous implant (10) comprises a bone-fixation portion (20), a spigot portion (50) for the attachment of an external prosthesis, and a pear-shaped portion (40) having a porous outer region (44) comprising a mesh of wire mesh material around a central core. The portion (40) is disposed between the spigot portion (50) and a collar (30) which has a plurality of through holes (34) adjacent to its edge. The bone-fixation portion (20) may have extending parallel thereto a plate (72) for attachment to the side of a bone.

Abstract: An intermediate body is for a bone implant for replacement of an osseous area. The intermediate body has a base body and a seat which extends axially in the base body and is surrounded by a wall of the base body. The intermediate body is designed to receive and surround an end portion of an intramedullary implant part. A clamp device is assigned to the seat. A clamp component is arranged on the wall of the base body surrounding the seat. In order to clamp, the end portion is inserted beforehand into the seat relative to the wall of the base body. The wall then surrounds the seat and the inserted end portion is movable towards the seat and in the process clamps the end portion in the seat. An implant arrangement is provided with the intermediate body.

Abstract: The invention relates to a joint prosthesis having a shaft made from a titanium alloy, in which at least the shaft is investment cast and has a body-centered cubic crystal structure. A titanium alloy having this crystal structure (known as ?-titanium alloy) has an advantageously low modulus of elasticity which is well matched to the physiological demands of joint prostheses. Furthermore, implementation as a shaped casting allows a complex shape to be achieved. It is particularly embodied as a femoral prosthesis for an artificial hip joint, which has an elongate shaft with grooves and sawtooth-like projections for bone anchoring.

Abstract: A generally tubular stent-graft (24) has distal and proximal stent-graft ends (36, 38) and includes a generally tubular support element (30) and a covering element (32).

Abstract: An orthopedic prosthesis (20, 100) including an implant body (22, 24, 26, 122) defining a number of suture anchor attachment locations (30, 120), and a plurality of suture anchors (40) each including one or more suture (S) extending from an anchor portion (42) that is engaged with a select one of the suture anchor attachment locations (30, 120) to selectively attach a corresponding one of the suture anchors (40) to the implant body (22, 24, 26, 122). A method of using the orthopedic prosthesis (20, 100) is also provided.

Abstract: Mitral valve prosthesis are disclosed that include a frame or support structure having an inflow portion, a valve-retaining tubular portion and a pair of support arms. The inflow portion radially extends from a first end of the valve-retaining tubular portion and the pair of support arms are circumferentially spaced apart and radially extend from an opposing second end of the valve-retaining tubular portion. The inflow portion is formed from a plurality of struts that outwardly extend from the first end of the valve-retaining tubular portion with adjacent struts of the plurality of struts being joined, wherein each strut of the plurality of struts has a substantially s-shaped profile and at least one twisted area.

Abstract: Apparatus and methods are described including an implantable device having first and second longitudinal ends, the device having a length of less than 80 mm when the device is unconstrained. The device includes struts arranged such that, when the device is unconstrained, along a continuous portion of the device having a length that is at least 5 mm, a maximum inter-strut distance defined by any set of two adjacent struts is more than 1.5 times as great as a maximum inter-strut distance defined by any set of two adjacent struts within longitudinal portions of the device within 3 mm of the longitudinal ends of the device. Other applications are also described.

Abstract: The invention relates to a modular humeral prosthesis for an inverse shoulder prosthesis, comprising an anatomical shaft (1) and a separable epiphyseal head (2) which may be angularly orientated by rotation about the longitudinal axis (XX) of the anatomical shaft. The anatomical shaft and the epiphyseal head comprise complementary angular indexing means (11, 28) for relative rotational fixation.

Abstract: A bone graft substitute includes a porous matrix at least partially covered by a reinforcing outer layer. The porous matrix may be a collagen-ceramic composite, and the reinforcing outer layer may be formed from highly cross-linked collagen. The implant may also include one or more reinforcement ribs, which may be made from calcium phosphate or dense collagen. In addition, the bone graft substitute preferably includes an effective amount of a bioactive agent, such as BMP-2, rhBMP-2, or functional fragments thereof. The bioactive agent is preferably disposed within the porous matrix.