Abstract: An implant for interbody fusion of vertebrae comprising a unibody cage structure having an enveloping cage volume and a minimized material volume. The cage structure comprises a first and a second generally planar ring member, each ring member formed from an opposing pair of lengthwise joists and an opposing pair of cross joists, the joists together forming a large opening through the ring member. The ring members are fixedly sandwiched on a plurality of support members, the support members holding the ring members in a spaced apart relationship to thereby provide a large void volume relative to the enveloping cage volume, to thereby allow for receipt of a large volume of bone graft within the cage structure.

Abstract: A subperiosteal syringe assembly for storing, containing and delivering bone graft material to a location within the tissue of a jaw for use in a medical procedure. The syringe assembly has a lumen body that is maneuverable within the subperiosteal tissue to deposit bone graft material at the desired surgical site. Embodiments include a lumen body that has a flat shape, such as an elliptical shape. A plunger is provided to deliver the syringe contents. The syringe may be loaded with bone graft material, and some embodiments may be supplied pre-loaded with bone graft material. An end cap seals the open end of the lumen, and may function as a septum that may be punctured with a needle to introduce a liquid substance, such as a growth factor, into the lumen where the bone material is stored. The syringe may be designed to incorporate surgical navigation and laparoscopic systems.

Abstract: A unitary adhesive retractor is provided for supporting a patient's excess/redundant tissue to maintain the excess/redundant tissue away from an incision or other existing wound. The retractor defines a top-to-bottom length and a side-to-side width greater than one-half the top-to-bottom length, and comprises a stretchable, air-permeable fabric layer adherable directly to the excess/redundant tissue by means of a silicone gel adhesive which coats at least a substantial portion of a bottom surface of the fabric layer. When the retractor is placed in tension upon application of the retractor to a patient, due to the weight of the excess/redundant tissue, forces generated by the weight of the excess/redundant tissue are transferred through the gel adhesive to the fabric layer, such that the gel substantially protects the dermis of the patient from sheer forces generated by the weight of the excess/redundant tissue being evenly distributed to the dermis of the patient.

Abstract: This application describes surgical instruments and implants for building a posterior fixation construct across one or more segments of the spinal column during a medialized posterior lumbar interbody fusion (PLIF) procedure.

Abstract: An allograft implant for fusing a sacroiliac joint, the allograft implant having a body with two opposing faces. A graft window is disposed between the two opposing faces, the graft window providing passage through the body between the two opposing faces. A portion of the body located between the graft window and each of the sides defines a wall such that the wall maintains a minimum thickness in a range of about 17% to about 20% of the width of the body.

Abstract: Improved instruments for modifying a shape of a proximal femur of a patient for installation of a stem of a femoral component of a prosthetic hip during hip replacement surgery, comprising a handle including an elongated shaft extending downward approximately in a z-direction, a first offset extending from a bottom of the elongated shaft approximately in a y-direction, a second offset extending from the second offset approximately in an x-direction, and a shaping member elongated downward from the second offset approximately in the z-direction. Provided is an improved femoral broach and an improved osteotome. Also provided is a method of improving a patient's positioning during hip replacement surgery by using a variable configuration mattress for positioning the patient.

Abstract: The disclosure provides example methods and non-transitory computer-readable mediums for acetabular cup placement. An example method includes a processor (a) determining for a first patient a sagittal acetabular cup position in the form of a standing AI, a seated AI and a SAA based on (i) a standing SS relative to a normative SS, (ii) a dSS between a standing position and an upright seated position, (iii) a femoral version corresponding to a femoral version outlier position, and (iv) a PFA to correspond to a PFA outlier position in a standing position or an upright seated position, (b) determining a coronal acetabular cup position in the form of a supine coronal anteversion and at least one of a supine or a standing coronal inclination based on the sagittal acetabular cup position, and (c) determining a post-operative standing AI and a post-operative seated AI based on the coronal acetabular cup position.

Abstract: Cutting instruments and related methods are disclosed herein in which the diameter of the retrograde cutting blade can be adjusted to any of a plurality of diameter settings, allowing the same instrument to be used to form holes of different diameters. The limit diameter can be preset such that, during the cutting operation, the user need not be concerned with selecting the appropriate diameter, but rather can simply deploy the cutting blade until the preset limit is reached. Cutting instruments are also disclosed in which the retrograde cutting blade is distinct from the forward drilling tip and protected within a cavity formed in the body of the instrument when not in use, as are instruments in which the user is given visual and/or tactile feedback to confirm desired positioning of the cutting blade.

Abstract: A multi-portal method for treating a subject's spine includes distracting adjacent vertebrae using a distraction instrument positioned at a first entrance along the subject to enlarge an intervertebral space between the adjacent vertebrae. An interbody fusion implant can be delivered into the enlarged intervertebral space. The interbody fusion implant can be positioned directly between vertebral bodies of the adjacent vertebrae while endoscopically viewing the interbody fusion implant using an endoscopic instrument. The patient's spine can be visualized using endoscopic techniques to view, for example, the spine, tissue, instruments and implants before, during, and after implantation, or the like. The visualization can help a physician throughout the surgical procedure to improve patient outcome.

Abstract: A bone plate includes a plate body defining an outer surface, an opposed bone-facing surface, and a combination hole comprising a locking hole and a compression hole that intersect one another and each extending from the outer surface to the bone-facing surface. The locking hole and the compression hole extend away from each other along a longitudinal axis. The plate body further defines a locking surface that defines the locking hole, and a second surface that defines the compression hole. The locking surface further defines a plurality of columns sequentially located about a central axis of the locking hole, a plurality of recesses located, respectively, between at least some of the columns, and plate threads that traverse each of the columns. Crests of the plate threads extend linearly from a first side of each column to a second side of each column.

Abstract: Surgical instruments for performing wedge-shaped osteotomies are disclosed herein. One surgical instrument includes a body with a distal end, a proximal end, a bottom surface, and a top surface including a slope extending upward and along a single plane from the distal end to the proximal end. The surgical instrument further includes multiple columns of cutting blades positioned on the top surface in which each of the cutting blades are spaced apart and extend vertically along at least a portion of the slope from the distal end to the proximal end. Another surgical instrument includes the cutting blades positioned in multiple rows of cutting blades on the top surface such that the multiple rows of cutting blades extend along the slope from the distal end to the proximal end and each cutting blade in the plurality of cutting blades extends horizontally across the top surface.

Abstract: Devices and methods for bending or cutting implants are disclosed herein. In some embodiments, an instrument can include a rotatable drive shaft that urges first and second portions of a modular bending or cutting template toward one another to bend or cut an implant disposed between the template portions. A linkage assembly can be included to provide a mechanical advantage in urging the template portions toward one another. In some embodiments, an instrument can include a rotatable drive shaft that, depending on direction of rotation, pushes or pulls a first modular template portion with respect to a second modular template portion to bend an implant disposed between the template portions in one direction or another direction. In some embodiments, an instrument can include a worm drive that rotates a cutting wheel with respect to a cutting plate to cut an implant inserted through openings formed in the cutting wheel and the cutting plate.

Abstract: An implant for interbody fusion of vertebrae comprising a unibody cage structure having an enveloping cage volume and a minimized material volume. The cage structure comprises a first and a second generally planar ring member, each ring member formed from an opposing pair of lengthwise joists and an opposing pair of cross joists, the joists together forming a large opening through the ring member. The ring members are fixedly sandwiched on a plurality of support members, the support members holding the ring members in a spaced apart relationship to thereby provide a large void volume relative to the enveloping cage volume, to thereby allow for receipt of a large volume of bone graft within the cage structure.

Abstract: A clamp for a surgical retractor system. The clamp has a tapered conically shaped washer against and through which clamping force is applied to place the clamp in a clamped position. The clamping force is applied by a cam head connected to a central shaft. A locking pin connects the cam head to the shaft. Apertures are provided in the clamp for receiving rod ends of a surgical retractor. Such apertures are circular and are positioned to be closer to the top and bottom edges of the clamp portion of the clamp than to the end edge of the clamp portion.

Abstract: A joint decorticator instrument configured for single use. The joint decorticator has a metal rod affixed within a polymer sheath. The polymer sheath has a longitudinal channel configured to receive an alignment protrusion with a working channel for maintaining the joint decorticator in a proper alignment relative to the working channel. The joint decorticator may include an integrated extraction mechanism involves an extraction lever pivotally connected to the handle portion of the polymer sheath. The extraction lever has an eccentric cam mechanism. When the extraction lever is pivoted toward an open position, the cam exerts a force onto a collar of the working channel and an opposite force on the connector pin that pivotally connects the extraction lever to the polymer sheath, thereby dislodging the abrading head of the joint decorticator from the joint.

Abstract: A number of orthopaedic surgical instruments are disclosed. A method, apparatus, and system for fabricating such instruments are also disclosed.

Abstract: A system for harvesting bone material from a bone may include a rotary cutter defining a rotary cutter longitudinal axis extending between a rotary cutter proximal end and a rotary cutter distal end. The rotary cutter may have a drive shaft configured to receive input torque, and an osteochondral cutter configured to cut the tissue and receive the tissue material in response to rotation of the osteochondral cutter under pressure against the tissue. The system may further include a bone port defining a bone port longitudinal axis extending between a bone port proximal end and a bone port distal end. The bone port may have a bone port cannulation sized to closely fit over the osteochondral cutter. At least one of the bone port proximal end and the bone port distal end may be securable to the tissue. A stratiform tissue graft may be delivered through the bone port.

Abstract: Certain embodiments of the invention provide plates for treating periarticular fractures or other non-full body weight bearing applications that combine polyaxial fixation with a low profile and enhanced contouring that more closely conforms to bone. Such plates can be designed to achieve buttressing effect and/or to be used in a reinforcement mode. Other features can be combined with these. Such plates can be created for use on bone sites such as on a tibia, fibula, metatarsal, calcaneous, other foot bone, humerus, radius, ulna, spinal, maxillofacial, as well as sites on other bones.

Abstract: The present invention relates to an articular joint replacement system. The system has first and second components. Each component has a tapered head piece for covering the end of a bone and for acting as an articular surface, an integrally formed screw stem having a length sufficient to extend into the medullary canal, and inwardly angled bone grips affixed to the underside of the head piece to allow solid fixation to the bone by compression press fit. The head piece of the first component is provided with a shaped exterior surface which complements the shaped exterior surface of the head piece of the second component and which allows motion in three planes.

Abstract: A bone repair device includes a plate having a pathway and a flexible structure. The plate includes opposing top and bottom surfaces and a first side extending between the top and the bottom surfaces. The flexible structure is directly attached to and extends from the first side of the plate. In operation, the bone repair device is placed around and over a plurality of bone parts. The plate is secured to the plurality of bone parts with a cable inserted through the pathway and wrapped around the bone parts.