Abstract: The present invention provides an anchor system for musculoskeletal applications, e.g., for anchoring tendons or ligaments to bone or anchoring two or more bone sections. The anchor system comprises a substantially solid pre-manufactured distal portion (i.e., anchor component) and a settable, biodegradable composite. The biodegradable composite is flowable at the time of delivery and is introduced into the fixation site before or after the anchor component. Both the anchor component and the biodegradable composite may be manufactured from citrate-based polymers.

Abstract: The present invention provides an anchor system for musculoskeletal applications, e.g., for anchoring tendons or ligaments to bone or anchoring two or more bone sections. The anchor system comprises a substantially solid pre-manufactured distal portion (i.e., anchor component) and a settable, biodegradable composite. The biodegradable composite is flowable at the time of delivery and is introduced into the fixation site before or after the anchor component. Both the anchor component and the biodegradable composite may be manufactured from citrate-based polymers.

Abstract: Biodegradable and bioabsorbable anchors and anchor systems for use in musculoskeletal fixation applications comprising (1) an anchor body comprising a longitudinal axis, a proximal end, a distal end, an outer surface, and a bore extending from the proximal end and parallel to the longitudinal axis, wherein the bore defines an inner surface of the anchor body, and wherein at least a portion of the anchor body is expandable in a direction non-parallel to the longitudinal axis, and (2) an expansion pin comprising a longitudinal axis, a proximal end, a distal end, and a surface, and configured for insertion into the bore such that, when inserted, it expands the expandable portion of the anchor body in a direction non-parallel to the longitudinal axis. Both the disclosed anchors and anchor systems are at least in part formed from a citrate-based polymer.

Abstract: Joint resurfacing and/or replacement devices, systems and methods that include thin film ternary ceramic coatings that are effective to provide reliable articulation and bearing surfaces and protection of both articular and modular junction surfaces from the potential for corrosion, wear, and fretting, and reduce the potential for release of metal ions from the joint systems. Isoelasticity is provided according to the particular joint resurfacing/replacement devices, systems and methods based on parameters that include material of construction, porosity and coating system. The thin film ternary ceramic coatings may be functionalized to enhance hydrophilicity and may be employed in any anatomical articulating joint region. Titanium alloy composite structures are provided that include an ultra-porous structured titanium alloy bone fixation surface and an opposed solid articular surface and a thin film ternary ceramic coating applied to one or both opposed surfaces.

Abstract: Joint resurfacing and/or replacement devices, systems and methods that include thin film ternary ceramic coatings that are effective to provide reliable articulation and bearing surfaces and protection of both articular and modular junction surfaces from the potential for corrosion, wear, and fretting, and reduce the potential for release of metal ions from the joint systems. Isoelasticity is provided according to the particular joint resurfacing/replacement devices, systems and methods based on parameters that include material of construction, porosity and coating system. The thin film ternary ceramic coatings may be functionalized to enhance hydrophilicity and may be employed in any anatomical articulating joint region. Titanium alloy composite structures are provided that include an ultra-porous structured titanium alloy bone fixation surface and an opposed solid articular surface and a thin film ternary ceramic coating applied to one or both opposed surfaces.

Abstract: Joint resurfacing and/or replacement devices, systems and methods that include thin film ternary ceramic coatings that are effective to provide reliable articulation and bearing surfaces and protection of both articular and modular junction surfaces from the potential for corrosion, wear, and fretting, and reduce the potential for release of metal ions from the joint systems. Isoelasticity is provided according to the particular joint resurfacing/replacement devices, systems and methods based on parameters that include material of construction, porosity and coating system. The thin film ternary ceramic coatings may be functionalized to enhance hydrophilicity and may be employed in any anatomical articulating joint region. Titanium alloy composite structures are provided that include an ultra-porous structured titanium alloy bone fixation surface and an opposed solid articular surface and a thin film ternary ceramic coating applied to one or both opposed surfaces.

Abstract: Joint resurfacing and/or replacement devices, systems and methods that include thin film ternary ceramic coatings that are effective to provide reliable articulation and bearing surfaces and protection of both articular and modular junction surfaces from the potential for corrosion, wear, and fretting, and reduce the potential for release of metal ions from the joint systems. Isoelasticity is provided according to the particular joint resurfacing/replacement devices, systems and methods based on parameters that include material of construction, porosity and coating system. The thin film ternary ceramic coatings may be functionalized to enhance hydrophilicity and may be employed in any anatomical articulating joint region. Titanium alloy composite structures are provided that include an ultra-porous structured titanium alloy bone fixation surface and an opposed solid articular surface and a thin film ternary ceramic coating applied to one or both opposed surfaces.

Abstract: A TPO bone plate with an offset longitudinal axis has a bone-contacting bottom side and a top side. Sets of overlapping holes communicate through the plate from the top to the bottom side. The overlapping holes have multifaceted surfaces such as a threaded surface or a coaxial series of annular grooves. The sets of overlapping holes are adapted to receive a bone screw with a head and a bone-engaging thread.

Abstract: A TPO bone plate with an offset longitudinal axis has a bone-contacting bottom side and a top side. Sets of overlapping holes communicate through the plate from the top to the bottom side. The overlapping holes have multifaceted surfaces such as a threaded surface or a coaxial series of annular grooves. The sets of overlapping holes are adapted to receive a bone screw with a head and a bone-engaging thread.

Abstract: A TPO bone plate with an offset longitudinal axis has a bone-contacting bottom side and a top side. Sets of overlapping holes communicate through the plate from the top to the bottom side. The overlapping holes have multifaceted surfaces such as a threaded surface or a coaxial series of annular grooves. The sets of overlapping holes are adapted to receive a bone screw with a head and a bone-engaging thread.

Abstract: A prosthetic implant device for use in replacing the ball end of a biological joint, the replacement including a spherical head for insertion into a natural socket, an insert in the head, a ball-shaped member captured in the insert and having a neck and a stem for mounting the ball-shaped member on the end of the biological member on which the ball is being replaced, and a radially-expansible ring for capturing the ball-shaped member within the insert the ring having a downwardly and inwardly sloping outer wall and seated in a recess in the insert, the recess having upper and lower end walls for defining upper and lower limits of axial movement of the ring within the recess to permit selective removal of the ball-shaped member from the insert and to prevent inadvertent disengagement of the ball-shaped member from the insert.

Abstract: A knee prosthesis in which articular surface areas of the engaged femoral and tibial components of the prosthesis include surface profile contours lying in a common arcuate profile defined by a medial-lateral radius having an origin lying on the mechanical axis passing through the femoral head of the corresponding hip joint such that limited misalignment of the femoral and tibial components by virtue of angular deviation from the mechanical axis resulting from relative displacement in a medial-lateral direction is tolerated to accommodate the misalignment while maintaining area engagement between the engaged surfaces.

Abstract: An acetabular cup has a shell component with an outer surface including a frusto-conical surface portion and a spherical surface portion and an acetabulum is prepared with an inner surface including a frusto-conical surface portion and a spherical surface portion, the spherical surface portions having essentially the same radius and the frusto-conical surface portions having relative dimensions such that upon nesting of the spherical surface portions in contiguous relationship, the frusto-conical portions engage one another in an interference fit to secure the shell component within the prepared acetabulum.

Abstract: An acetabular cup assembly includes a metal shell component and a plastic bearing insert capable of assembly interoperatively, the metal shell component first being secured in position within an acetabulum and then the plastic bearing insert being receivable within the shell component, first at a preliminary axial position for ascertainment of the circumferential position of the bearing insert and the orientation of the bearing face of the bearing insert relative to the shell component and then at a fully-seated axial position wherein the bearing insert is permanently captured in the shell component, the bearing insert being readily withdrawn from the preliminary axial position for circumferential repositioning to attain appropriate orientation of the bearing face prior to capturing the bearing insert within the shell component.