摘要:
A first implant may be configured for attachment to a talus bone. A second implant may be configured for attachment to a calcaneus bone. The first implant attached to the talus bone can move in relation to the second implant attached to the calcaneus bone. A sheet can be disposed between the first implant and the second implant to facilitate relative motion between the first implant and the second implant. The sheet may provide a curvilinear surface that engages a curvilinear surface of the first implant or a curvilinear surface of the second implant to facilitate the relative motion. A set of tools may be used to distract the talus bone from the calcaneus, which may be used for insertion of the implants.
摘要:
A cavity creating device having a cavity creating axis is introduced through a percutaneous access path into a cancellous bone volume, e.g., within a vertebral body. The cavity creating device is manipulated to form a cavity in the cancellous bone volume. The manipulation includes deflecting the cavity creating device along the cavity creating axis relative to the axis of the access path. A material, such as bone cement, can be conveyed into the cavity.
摘要:
A cavity creating device having a cavity creating axis is introduced through a percutaneous access path into a cancellous bone volume, e.g., within a vertebral body. The cavity creating device is manipulated to form a cavity in the cancellous bone volume. The manipulation includes deflecting the cavity creating device along the cavity creating axis relative to the axis of the access path. A material, such as bone cement, can be conveyed into the cavity.
摘要:
Systems and methods treat fractured or diseased bone by deploying more than a single therapeutic tool into the bone. In one arrangement, the systems and methods deploy an expandable body in association with a bone cement nozzle into the bone, such that both occupy the bone interior at the same time. In another arrangement, the systems and methods deploy multiple expandable bodies, which occupy the bone interior volume simultaneously. Expansion of the bodies form cavity or cavities in cancellous bone in the interior bone volume.
摘要:
A method provides a void creation device including an expandable structure adapted to undergo expansion in the cancellous bone volume of a bone selected for treatment. The expandable structure has at least one dimension so that the expandable structure will assume a predetermined shape and size when substantially expanded that compacts only a first volume of the cancellous bone volume to form a void, leaving a second volume of the cancellous bone volume substantially uncompacted by the expandable structure. A filling material is placed within the void through the percutaneous access path.
摘要:
A tool served to convey a bone filling material into a cancellous bone volume. The tool carries an expandable structure, which is sized and configured for expansion within the cancellous bone volume to condition the cancellous bone volume for receiving the bone filling material.
摘要:
Devices and methods compress cancellous bone. In one arrangement, the devices and methods make use of an expandable body that includes an internal restraint coupled to the body. The internal restraint directs expansion of the body. In one arrangement, a method for treating bone inserts the device having the internal restraint inside bone and causes directed expansion of the body in cancellous bone. Cancellous bone is compacted by the directed expansion.
摘要:
The native cancellous bone volume of a vertebral body is altered to comprise a region of cancellous bone that has been compressed to form a compressed bone region that peripherally defines a cavity and another region of substantially uncompressed cancellous bone occupying at least a portion of the remaining native cancellous bone volume. A bone filling material occupies the cavity.
摘要:
A balloon for use in compressing cancellous bone and marrow (also known as medullary bone or trabecular bone) against the inner cortex of bones whether the bones are fractured or not. The balloon comprises an inflatable, non-expandable balloon body for insertion into said bone. The body has a shape and size to compress at least a portion of the cancellous bone to form a cavity in the cancellous bone and to restore the original position of the outer cortical bone, if fractured or collapsed. The balloon is prevented from applying excessive pressure to the outer cortical bone. The wall or walls of the balloon are such that proper inflation the balloon body is achieved to provide for optimum compression of all the bone marrow. The balloon is able to be folded so that it can be inserted quickly into a bone. The balloon can be made to have a suction catheter. The main purpose of the balloon is the forming or enlarging of a cavity or passage in a bone, especially in, but not limited to, vertebral bodies.
摘要:
A calcaneal prosthesis system includes a body having a dorsal surface, a plantar surface, an anterior surface, and a posterior end. The posterior end has a tuberosity. The anterior surface has at least a concavity or convexity shaped for receiving a cuboid bone or mid-foot bone. The dorsal surface includes a convex or concave surface for engaging a talus bone or distal tibia. An integrally formed intramedullary (IM) nail extends from the dorsal surface.