127 results about "Spinal deformity" patented technology

Spinal anchoring methods and devices are provided that are effective to correct spinal deformities while allowing some flexibility to the spinal. In particular, the methods and devices allow a spinal fixation element to mate to several adjacent vertebrae to maintain the vertebrae at a fixed distance relative to one another, yet to allow the orientation of each vertebrae relative to the fixation element to adjust as the orientation of the patient's spine changes.

Implantable devices and methods for correcting spinal deformities or degeneration are disclosed. The devices and methods have particular application in the spinopelvic region and on the sacrum or ilium. In one embodiment, a cross connector is provided and can include a cross member with a connector head slidably disposed thereon. The cross member can be adapted for attachment to one or more anchoring elements, and the sliding connector head can include a first receiving portion defined by an opening through the connector head for receiving the cross member, and a second receiving portion defined by a recess between first and second opposed arms for receiving a spinal fixation element, such as a spinal rod. A guide channel can optionally be provided on the cross member for guiding the movement of the sliding connector head. In other embodiments, the device can include a locking mechanism for locking a spinal fixation element within the connector head, and for securing the connector head in place on the cross member.

The design of a rod is disclosed that can serve, among other more general applications, as an implant to stimulate the reduction of spinal deformity. Different from common solid rod implants, the here-disclosed rod provides an almost uniform pressure between a chosen maximum and minimum by means of an internal spring and by expanding its length to adjust for progressing spinal growth or adjustment. The rod contains an internal ratchet which permits a piston to expand only outward, thereby providing easy installation and the expansion of the rod over time as the spine adjusts. The controlled expansion occurs in surgical applications through occasional body flexing, thereby avoiding additional interventions for adjustment.

Provided herein are systems, devices and methods for the correction of spinal deformities with the use one or more implantable rods configured to apply a corrective force to the spine. Methods of minimally invasive implantation of a corrective system are provided, such as where the corrective system is attached only to the spinous process of one or more vertebral bodies. Various corrective systems as well as components thereof are also provided.

The present invention generally relates to methods and devices for treatment of spinal deformity, and in particular to the utilization of at least one implant to either maintain the position of at least one vertebra of a patient to prevent increase in abnormal spinal curvature, to slow progression of abnormal curvature, or to impose at least one corrective displacement and/or rotation on at least one vertebra of a patient so as to incrementally correct abnormal spinal curvature.

A device and method for correcting a spinal deformity are provided. A spinal implant for correcting a spinal deformity includes a multipoint connector that connects to at least one vertebra of a spine at a plurality of locations and a force directing device that applies a force to the vertebra through the multipoint connector. The force directing device may include a rod which extends generally along an axis of the spine and a force directing member which is adjustably coupled to both the rod and the multipoint connector and which applies a corrective force to the at least one vertebra.

This invention relates to an implant to be inserted in the disc space between two adjacent vertebrae for the correction of the vertebral spine curvature. The configuration (lateral view) of the invention is basically a wedge or acute-angled isosceles trapeze, wherein the area opposite the shorter base or opposite to the vertex is a rounded pyramid-like surface, and the upper and lower surfaces of the trapeze include fixation protuberances to the vertebral plates of the adjacent vertebrae.

Method and devices are provided for correction of spinal deformities. The methods and devices are particularly useful for correcting an abnormal curvature of the spine. In one exemplary embodiment, the methods and devices provide a spinal implant that can include a wedged-shape configuration. The wedged implant can be interposed between adjacent vertebrae that form part of an abnormal spinal curvature, thereby realigning the vertebrae and restoring the normal curvature to the spine.

A spinal alignment system is disclosed that includes a rod and a plurality of uniplanar screw assemblies that include a screw, a cap, and a housing. The screw and cap are configured such that the relative angular displacement between the screw and the cap is limited to a first limit angle in a first plane and to a second limit angle in a second plane that is perpendicular to the first plane, the second limit angle being larger than the first limit angle. The housing is coupled to the cap and configured to maintain the cap in proximity with the head of the screw. The housing has two elongated elements forming a U-shaped saddle. The alignment system also includes a plurality of locking cap assemblies that capture the rod within the U-shaped saddle and are tightened to fixedly couple the rod to the respective uniplanar screw assemblies.

A method for correcting a spinal deformity is provided. A spinal implant for correcting a spinal deformity includes a multipoint connector that connects to at least one vertebra of a spine at a plurality of locations and a force directing device that applies a force to the vertebra through the multipoint connector. The force directing device may include a rod which extends generally along an axis of the spine and a force directing member which is adjustably coupled to both the rod and the multipoint connector and which applies a corrective force to the at least one vertebra.

Systems and methods are disclosed for three-dimensional (3-D) characterization and clinical classification of spinal deformity. By choosing three points on frontal and sagittal 2-D images, a 3-D segmented reconstruction of a spine is made available. Two additional bendAg images provide further information for a Lenke classification of the spine under consideration.

Devices and corresponding methods for the correction of spinal column deformities, vertebral displacements and for the surgical fixation of the spine including vertebral fixing element(s), vertebral connector element(s), and polyaxial correcting element(s) that can house along its structure varying specifically oriented correction element(s). The polyaxial correcting element(s) are mobilized with the help of correcting force element(s) that induce a three-dimensional mobilization of the polyaxial correcting elements and the vertebrae to which these are attached. Longitudinal spinal fixing element(s) provide for the definitive fixation of the spine. The longitudinal spinal fixing element(s) are joined and fixed to the vertebral fixing element(s) or to permanent vertebral connector element(s). The three-dimensional aspect of the spine is accurately envisioned prior to surgery allowing a caregiver to both create a treatment plan and make intra-operative changes as needed in relation to the correction of the spine.

A pedicle screw for use in the treatment of a spinal deformity includes a head assembly and a fastener portion extending from the head assembly. The pedicle screw includes a head assembly and a fastener portion that extends from the head assembly. The fastener portion extends from the head assembly and is adapted to be secured to a vertebra of a spinal column. The head assembly includes a stationary member and a movable member. The movable member is supported on the stationary member for movement (such as pivoting movement) relative thereto between an opened position and a closed position. When the movable member is in the opened position, the head assembly is adapted to receive a longitudinal member therein for treatment of a spinal deformity. Thereafter, the movable member can be moved to the closed position to properly align the pedicle screw with the longitudinal member. A locking member and a retention member can then be used to maintain the movable member in the closed position.