94 results about "Lateral approach" patented technology

This invention relates to devices and instruments for implant insertion through a posterior lateral opening to the disc space. The instruments include an implant inserter, and the devices include a spinal fusion implant engageable by the implant inserter. The implant provides bilateral support of the adjacent vertebrae when inserted into the disc space from a postero-lateral approach.

This invention relates to devices and instruments for implant insertion through a posterior lateral opening to the disc space. The instruments include an implant inserter, and the devices include a spinal fusion implant engageable by the implant inserter. The implant provides bilateral support of the adjacent vertebrae when inserted into the disc space from a postero-lateral approach.

A method is disclosed for introducing a spinal disc implant into an intervertebral space of a subject. The subject is placed in a lateral position, and the anterior face of the spinal disc intervertebral space is accessed, between the L5 and S1 vertebrae, from an anterior and lateral retroperitoneal approach. An operative corridor to the anterior face of the spinal disc space is established by introducing a retractor instrument anterolaterally to the spinal disc space between the anterior superior iliac spine and the anterior inferior iliac spine. The damaged spinal disc contents are removed from the intervertebral space through the operative corridor, and the implant is advanced into the intervertebral space at an oblique angle and pivoted to position the implant substantially laterally within the intervertebral space. Elongated retractor and insertion instruments, as well as a modified disc implant, are also disclosed for carrying out the method.

Artificial disc replacements (ADRS) are configured for implantation using a lateral, anterior-lateral, or posterior-lateral approach. A first component having a first segment resides in the disc space for articulation purposes, with a second segment adapted for fixation to the lateral outer surface of one of the vertebral bodies. A second component having a first segment resides in the disc space for articulation purposes, with a second segment adapted for fixation to the lateral outer surface of the other vertebral body. The first segments of the two components may articulate against one another without a spacer, or a spacer forming a mobile bearing may be disposed between the first segments of the two components. In the preferred embodiment, one or both of the two components are in the form of bent plates such that the second segment is positioned against a lateral wall for fixation. In the preferred embodiment, screws are used through the second segment and into a vertebral body. The screws are located in different vertical locations, and may diverge or converge vertically or horizontally to resist pull-out.

Implants, tools and techniques facilitate a percutaneous posterior lateral approach to the placement of an in-situ cage, and an inventive cage design to meet this objective. In terms of apparatus, the invention includes a laterally expandable cage, including a locking gate, enabling the system to be introduced into an intradiscal space through a minimally invasive percutaneous posteo-lateral approach. In addition to the cage designs, adapted to hold bone graft and / or other biologic materials, the invention includes other novel instruments, including an introducer associated with cage placement, deployment and closure.

The claimed invention is directed to a spinal fusion device comprising a load-bearing interbody component configured to fit between two adjacent vertebrae, wherein the interbody component comprises one or more openings to allow access to the vertebrae, a retention component that is configured to at least partially close the one or more openings of the interbody component and one or more fasteners that are coupled to the retention component to compress the two adjacent vertebrae to the interbody component, and methods of using a spinal fusion device.

The present disclosure relates to a surgical device, such as a surgical implant, which may be used in several types of procedures. More specifically, the present disclosure relates to implants for use in an anterior, posterior, posterior lateral or direct lateral approach to the disc space. The surgical device may be manipulated in various manners to accommodate delivery through a minimally invasive portal in one configuration and adjusted to a second configuration once placed in the intervertebral space. A delivery system for placing the surgical device in a body is also disclosed.

An Invertebral Disc Model Prosthesis, of the type denominated of double articulation, to substitute the function and the movement of intervertebral discs, for universal application due to its principal characteristic of being able to be used as a constrained, semi-constrained or non-constrained prosthesis, specially indicated for treatment of pathological degenerative of the intervertebral discs, discal hernias, by anterior approach, transition syndromes of supra-adjacent disc, chronic lumbagos resistant to conserver treatment, chronic adjacent vertebral instability, made from materials of proved biocompatibility, endowed with a low profile that makes it optimum for its implant in the human being and which consists of three pieces, two plates, upper and lower, and am intermediate piece , which serves for the substitution of the discs of the lumbar and cervical column, capable of being placed by the anterior or lateral approach.

A safe and efficient cutting heads for removing a target tissue from a subject during a surgical procedure are provided, the cutting heads composing a part of systems that address several problems, including clogging of state-of-the-art systems during removal of such tissue, for example. The target tissue can include any tissue that is accessible through a small surgical opening, for example, a joint tissue such as a meniscus or an intervertebral tissue, such as a nucleus pulposus. The devices can be referred to as orthopedic tissue removal devices having cutting heads associated with vacuum systems, making the systems useful in several procedures, including X-LIF (lateral approach to an intervertebral fusions) procedures, T-LIF (transforaminal approach to intervertebral fusions) procedures, P-LIF (posterior approach to intervertebral fusions), and a percutaneous, transforaminal approach (Kambin triangle access).

A device and method for removing tissue, and if required, other undesired materials from an intervertebral disc or vertebral body. An elongated arcuate, and preferably S-shaped tool is used to progressively remove material from the interior of the mammalian intervertebral disc or vertebral body. A sheath introduces the elongated tool by a posterior, postero-lateral or lateral approach. The shape of the elongated tool is formed within a guide or lumen of the sheath for transportation through the sheath. The elongated tool assumes its predetermined arcuate shape when no pressure or force is applied to the tool by the sheath as the elongated tool exits the sheath. The device and method allow positioning of new material in the intervertebral disc and / or vertebral body. The new material may be tissue, therapeutic agents, mechanical devices such as spacers, or agents that will fuse vertebral bodies.

A method of performing vertebral facet fusion by lateral approach and related devices. The lateral approach to facet fusion involves identifying the lateral mass and introducing any of the fixation methods known or described herein laterally at one or more facets through the use of a Kirschner wire guide, a cannulated bone drill and cooperatively cannulated staple guide. A surgical bone staple have a perforated bridge is used across the lateral facet joint where fixation is required. Where fusion is desired, a bone screw have lateral perforations of the shank is inserted through the cannulated staple guide and bridge perforation at the joint to promote fusion. A staple cap and graft container for overlay grafting may be utilized for additional fusion. The method involves less surgical time, reduced blood loss and discomfort for the patient as compared to the posterior approach.

A bicondylar implantable prosthesis resurfaces only the weight bearing portion of the patient's femur. The prosthesis includes a thin shell convexly curved outer articular surface including a medial condyle, a lateral condyle, and an intercondylar bridge, and a concave inner surface of the prosthesis that has at least one transverse ridge extending across the width of the prosthesis. When the prosthesis is implanted on the weight bearing portion of the femur, the entire outer surface of the curved articular surface is sized to resurface substantially only the weight bearing portion and no portion of the patello-femoral joint of the knee. The prosthesis is configured to be implantable by a lateral insertion through a direct lateral approach to a retropatellar region of the patient's knee joint, during which insertion the at least one transverse ridge guides the prosthesis along a laterally resected surface of the femur.

A method of performing vertebral facet fusion by lateral approach and related devices. The lateral approach to facet fusion involves identifying the lateral mass and then introducing any of the fixation methods known or described herein laterally at one or more facets through the use of a hollow cannula. A surgical bone staple have a perforated bridge is used across the lateral facet joint where fixation is required. Where fusion is desired, a bone screw have lateral perforations of the shank is inserted through the bridge perforation at the joint to promote fusion. The staple and screw may be used in conjunction with one another or individually. The facet joint may be distracted prior to fixation to increase the foraminal space and decompress the neural structures to relieve pain. The method involves less surgical time, reduced blood loss and discomfort for the patient as compared to the posterior approach.

An apparatus and method for locating the position of a spinal implant in an intradiscal space patient during surgery, comprising a spinal implant formed of radiolucent material and a releasably attached inserter comprising a positioning element including thereon a marker of material more radiopaque than the material of the spinal implant. The positioning element extends into the implant such that the marker is positioned at a predetermined location within the implant, the positioning element with the radiopaque maker being removable from the spinal implant after insertion. In a particular method of locating the position of the spinal implant, the spinal implant is inserted from the lateral approach.

The invention provides an opening type interbody fusion cage. The opening type interbody fusion cage comprises a fusion cage body, a push block, a jackscrew and two end covers. The fusion cage body is in a rectangular frame shape, the push block is installed in the fusion cage body, the two end covers are arranged at the top and the bottom of the fusion cage body respectively, a rectangular boss is arranged on one end face of the fusion cage body, the other end of the fusion cage body is in a transitional sharp corner shape, the jackscrew is arranged in the middle of the rectangular boss and connected with the rectangular boss through threads, and wedge-shaped protrusions are arranged at the two ends and the middle poison of the push block respectively. In a working state, the ends, close to the jackscrew, of the wedge-shaped protrusions are platforms, and a first round hole matched with the jackscrew in installation is formed in the platform of the wedge-shaped protrusion, close to the jackscrew, of the push block. Tooth-shaped protrusions are evenly distributed on the upper surfaces of the end covers, and wedge-shaped grooves matched with the wedge-shaped protrusions are formed in the two ends and the middle of the bottoms of the end covers. The jackscrew is rotated to drive the push block to move to one end, and the wedge-shaped protrusions are made to slide along the slopes of the wedge-shaped grooves to open the end covers in parallel. A lateral approach implantation method can be adopted, surgery is simple, damage to the spine is very small, and higher stability is achieved.

The transosseous spinal core approach (TOSCA) represents a novel approach to the interior of the spine or disc space by removing a core from a first bone and performing a procedure, and / or making further enlargements and cuts in the first bone and performing a procedure, and / or making another cut into an adjacent disc space from the first bone hole and performing a procedure and / or continuing by cutting into another second bone and performing a procedure. The process can be further extended into additional spine levels by extending the cutting process. A core can be made at more than one level. The preferred surgical approach is a posterior lateral approach. An anterior surgical approach can be used as well. Any practical surgical approach or any combination of surgical approaches can be utilized to gain access to the first bone. Once the surgical soft tissue access to the first bone is completed TOSCA can be used to gain access to the interior of a vertebral body or disc space. After the procedure is completed in a vertebral body or disc space, usually at least a portion of the bone core is replaced to fill in the core hole.