Abstract: A method for avoiding impingement between an implanted prosthetic hip stem and acetabular cup uses at least one digital x-ray of a standing patient preferably including a lateral x-ray to determine a pelvic tilt angle of the patient. A hip stem is virtually implanted at an initial stem version angle into a virtual femur constructed from the digital x-ray. Data of at least one hip joint motion is obtained from at least one individual. A range of inclination and anteversion angles is calculated for a virtually implanted acetabular cup that avoids impingement with the virtually implanted hip stem. The calculated range of inclination or anteversion angles is based at least in part on the pelvic tilt angle of the patient, the initial hip stem version angle and the obtained joint motion data.

Abstract: Disclosed herein are systems and methods of patella arthroplasty. A navigated patella clamp used in an arthroplasty procedure includes first and second movable jaw members and an actuation member coupled to the first and second jaw members for moving the first and second jaw members along a plane toward and away from one another. The patella clamp further includes a tracker and adjustable stylus for positioning the clamp on a patient's patella below a desired resection plane. The adjustable stylus coupled to the clamp is used to check the position and orientation of the clamp with respect to the patella to ensure the correct amount of bone will be resected from the patella corresponding to the thickness of a patella component that will be implanted on the resected patella.

Abstract: Systems for tissue repair are described where an elongate tissue repair device may be introduced into a single incision to access the damaged tissue. A suture delivery assembly may be sized for insertion through a single incision and positioned into proximity with a damaged or ruptured tissue region. A first portion of the damaged tissue region may be positioned within or along a channel defined along the suture delivery assembly and one or more lengths of suture may be secured to the first portion via the device. A second portion of the damaged tissue region may be similarly positioned within or along the channel and one or more additional lengths of suture may be secured to the second portion via the device. The first and second portions may then be approximated and secured to one another via the sutures to facilitate healing of the damaged tissue region.

Abstract: A bone void forming assembly includes a support member having a head portion and an elongate portion extending therefrom. A guide member is connected to the support member and has a guide body including a channel extending therethrough. The channel defines an axis offset and obliquely angled relative to an axis of the elongate portion. The assembly also includes reamer having a cutting head and a stop member. A bushing is slidably connected to the reamer between the stop member and cutting head and is slidably connectable to the guide body via the channel.

Abstract: An expandable implant includes a structural insert to provide a robust connection between an insertion instrument and the expandable implant. The structural insert can be made from a different material than the remainder of the implant to withstand compressive, tensile, shear, and torsional loads which may be present while inserting the implant into a patient. The structural insert may be formed as part of a bottom member of the implant or may be a separate element inserted into the implant body. The structural insert may provide a threaded connection to an insertion instrument. The expandable implant may include a bone graft port in fluid communication with a bone graft opening extending through the implant body.

Abstract: In one embodiment, the present invention include a method of securing tissue using a filamentary construct, the method including the steps of passing a length of filament through or around tissue; implanting a filamentary sleeve, formed of filament, into tissue; and passing at least a portion of the length of filament at least partially through the filamentary sleeve to form a one-way cleat. The present invention also provides for various devices, systems, assemblies, kits and methods of use, assembly and manufacture thereof.

Abstract: A surgical instrument includes a shaft having a distal end connectable with an implant, and a handle connected to a proximal end of the shaft. The instrument defines an internal fluid channel through which a fluid can be passed. A kit includes the instrument and a spinal implant that is expandable through the introduction of the fluid therein. A method of using the instrument includes passing a fluid through an internal fluid channel defined by the instrument and toward the implant.

Abstract: Certain small molecule amino acid phosphate compounds such as phosphoserine and certain multivalent metal compounds such as calcium phosphate containing cements have been found to have improved properties and form an interpenetrating network in the presence of a polymer that contains either an electronegative carbonyl oxygen atom of the ester group or an electronegative nitrogen atom of the amine group as the bonding sites of the polymer surfaces to the available multivalent metal ions.

Abstract: Robotic systems and methods for robotic arthroplasty. The robotic system includes a machining station and a guidance station. The guidance station tracks movement of various objects in the operating room, such as a surgical tool, a humerus of a patient, and a scapula of the patient. The guidance station tracks these objects for purposes of controlling movement of the surgical tool relative to virtual cutting boundaries or other virtual objects associated with the humerus and scapula to facilitate preparation of bone to receive a shoulder implant system. The virtual objects are located based on density data of the bone such that, when one or more shoulder implants are fully seated in the bone, distal portions of the implants are located in a first region of the bone having a density characteristic greater than an adjacent second region of the bone.

Abstract: A system for spinal surgery includes a prosthesis comprising a plurality of bone anchors which engage an intervertebral construct for fusion or motion preservation. The fusion construct comprises a spacer optionally encircled by a jacket. The motion preservation construct may comprise an articulating disc assembly or an elastomeric disc assembly. Any of the constructs may occupy the intervertebral disc space between adjacent vertebrae after removal of an intervertebral disc. The anchors slidingly engage the construct to securely fix the prosthesis to the vertebrae. The anchors and jacket of the fusion construct provide a continuous load path across opposite sides of the prosthesis so as to resist antagonistic motions of the spine.

Abstract: A method of implant a knee prosthesis includes forming a bone void at an end of a bone, implanting a void filler in the bone void, and implanting a knee prosthesis onto the end of the bone so that a stem of the knee prosthesis is received by the void filler.

Abstract: Disclosed herein are systems and methods for securing a glenoid baseplate to a resected glenoid cavity in a preoperatively planned position. Image information obtained from the glenoid cavity and surrounding scapula is analyzed to determine the location of optimal bone stock. A guide is designed based on the image information, the guide having a patient specific contact surface that contacts a surface of the bone in a preoperatively planned position. The guide is designed to have a cannulated portion including a specific length. A marking pin having at least one reference feature is drilled into the glenoid cavity. The length of the cannulated portion of the guide is based on a location of the at least one reference feature on an outer surface of the marking pin. A cannulated reamer guided by the marking pin is then used to resect the glenoid cavity until a stop surface of the cannulated reamer contacts an end of the marking pin.

Abstract: Disclosed herein are flexible prosthetic components that are designed to be snap-fit to bone of a patient. The prosthetic components each have an outer articular surface and an inner bone contacting surface opposing the outer articular surface. The bone contacting surface has an anterior surface and an opposing posterior surface configured to contact corresponding anterior and posterior surfaces of the patient's bone. At least one of the anterior and posterior surfaces includes one or more protrusions extending outwardly therefrom. The anterior and posterior surfaces of the prosthetic components may flex toward and away from one another such that the one or more protrusions may snap-fit into corresponding recesses in the bone. The bone of the patient may be resected to include planar surfaces or resurfaced to include a curved surface corresponding to the respective bone contacting surface of the prosthetic components.

Abstract: Disclosed herein are systems and methods for performing total hip arthroplasty with patient-specific guides. Pre-operative images of a pelvic region of a patient are taken in order to predefine the structure of the guides and corresponding implants. From the obtained image data an insertional vector for implanting an acetabular implant or component into an acetabulum of the patient is determined, wherein the insertional vector is coaxial with a polar axis of the acetabular component. Also from the obtained image data, a superior surface of the guides and implants can be shaped to match the acetabulum of the patient. A nub portion extending outwardly from the superior surface of the guides and implants is shaped to substantially match the shape of a fovea of the acetabulum. A guide portion of the guides forming a slot has a longitudinal axis coaxial with the determined insertional vector of a corresponding acetabular component.

Abstract: A flexible reamer for preparing a hole in a tissue includes a shaft that extends along a longitudinal axis between a proximal end and a distal end. The shaft is cannulated through and has a flexible portion along at least a portion of its length. The flexible portion includes a plurality of discrete, interlocking portions. An asymmetric tip at the distal end of the shaft has at least one flute positioned off-axis relative to a longitudinal axis of the flexible reamer.

Abstract: A device, method, and system for treatment or fixation of a fractured, damaged, or deteriorating bone or bones in a mid-foot region. The device comprising an implant with both proximal and distal fastener holes, along with fastener slots in a central elongated body, for securing the implant to the appropriate osseous cortical structures of the foot. The method for treatment or fixation of fractured, damaged, or deteriorating bones in the medial column of the foot with use of a device such as an intramedullary nail that attaches to either the talus or first metatarsal bones to secure the medial cuneiform and navicular bones in place.

Abstract: In a first embodiment, the present invention includes an instrumentation system for preparing a bone for soft tissue repair, the instrumentation system including a flexible drill pin capable of bending along a curved path; an aimer capable of engaging the flexible pin to bend the flexible pin; and a flexible reamer having a flexible portion along at least a portion of its length, the flexible portion comprising a plurality of laser cuts.

Abstract: A tibial baseplate may include a bridge portion connecting medial and lateral condylar portions at an anterior end portion of the baseplate, and a pair of fixation members extending inferiorly from a bone contacting surface of each of the medial and lateral condylar portions. One of each pair of fixation members may extend posteriorly from the bone contacting surface, may be positioned anterior to the other of the pair, and may include at least one recessed surface. The recessed surface may include a lateral recess, a posterior recess, and a medial recess. During insertion of the tibial baseplate into the bone, one of each pair of fixation members may guide the tibial baseplate into the bone and secure the tibial baseplate, while the other of each pair of fixation members may drag along the bone so that bone chips accumulate in the recesses, providing for increased fixation of the baseplate.