摘要:
An orthopedic apparatus including a patient-specific alignment guide attachable to a surface of a bone being prepared for receiving a prosthetic implant. The guide includes at least first and second components and a coupling mechanism connecting the first and second components to one another. The first component has a first bone engagement surface and the second component has a second bone engagement surface, the first and second bone engagement surfaces anatomically matching corresponding first and second portions of the surface of the bone. At least one of the first and second components defines at least one alignment formation.
摘要:
An orthopedic implant. The implant includes a metal portion having an internal three-dimensional cavity, the cavity having an opening to an outer surface of the metal portion, a ledge circumferentially surrounding at least a portion of the opening, and a porous metal insert formed in a three-dimensional shape conforming to the shape of the cavity and enclosed by the cavity without being bonded to the cavity. The insert is retained inside the cavity by the ledge.
摘要:
A patient-specific alignment guide for an orthopedic implant. The alignment guide can include a body having first and second opposing surfaces, the second surface adapted for positioning over a skin surface, and at least one extension extending from the second surface body. The extension has a distal end defining a patient-specific end surface that is mateable in form-fitting manner with a subcutaneous portion of the patient's anatomy, and at least one guiding passage extending between the first surface of the body and the distal end of the extension.
摘要:
A bone screw anchor capable of securely fastening a fixation device to weak or brittle bone. The anchor includes a distal region terminating in an open aperture or a solid tapered terminus. The distal region may include cutting flutes and a helical thread extending through an intermediate region, so as to make the anchor self-cutting. The proximal region has a receptor for receiving a driver for driving the anchor within a bore or hole within the bone. The anchor has an interior bore with internal threads for receiving a bone screw used to secure a fixation device to the anchor. The bore may have a plurality of ports providing passage to the exterior of the anchor. Once seated entirely within the receptor, the anchor's position is secured using bone cement. Bone cement is delivered to the bore or hole before the anchor is placed in the receptor or after via the ports.
摘要:
A method and apparatus for implanting a prosthetic through a less invasive procedure. Generally, an instrument is provided to allow for a torque transfer along a non-linear line. Therefore, an incline can be provided without obstructing the view of a user using the instrument.
摘要:
A method and apparatus for repairing a cavity in bone may can include a longitudinal shaft having a distal end and a proximal end. A cutting tool can be selectively attachable to the distal end. A one-piece guide can have a body defining an opening and including a locator member extending therefrom. The locator member can be engageable to a first portion of the bone providing a reference point relative to the cutting tool while the cutting tool engages a second portion of the bone during cutting. The body can be slidably advanced onto the longitudinal shaft through the opening from the proximal end to an operating location in an assembled position. During operation, the body can define a handle concentric with the longitudinal shaft.
摘要:
A tool for use with a surgical navigation system includes a plurality of LEDs mounted to the distal end of the tool. The LED's provide an indication of the direction in which the tool must be moved to reach a desired position. Four LED's mounted along perpendicular axes are provided. Modes for indicating the desired location, orientation, rotation, and depth are provided. A mode indicator may also be provided. The tool is designed for use with a surgical navigation system which includes an infrared localizer and computer system. The indicators assist the surgeon in positioning the surgical tool in relation to the patient. Indicators other than LEDs may be used; the indicators may also be mounted in alternate locations in the operating room environment.
摘要:
Methods for grafting whole superficial articular cartilage are provided. A defect site is prepared to receive the whole superficial cartilage graft by removing a region of tissue. A whole superficial cartilage is obtained from a selected articular cartilage site. The whole superficial cartilage graft is attached to the prepared deficit site to sufficiently reduce movement of the whole superficial cartilage.
摘要:
A method for coating a biocompatible substrate with an antibiotic is provided. The method includes dissolving at least one antibiotic in an antibiotic compatible solvent to provide an antibiotic solution. The antibiotic solution is applied to the substrate and the antibiotic compatible solvent is removed from the substrate. Methods of preparing a metallic implant and methods of providing localized antibiotic activity are also provided.
摘要:
A vacuum package system for hydrating and/or rehydrating orthopedic graft materials, such as allograft materials, xenograft materials, and synthetic materials, is described. The system primarily includes a container, which includes a dividing device for dividing the container into first and second compartments and for isolating the compartments from one another, the first compartment containing a liquid component and the second compartment containing either dry porous and/or dehydrated orthopedic graft material under vacuum with a tubular member. The elongated tubular member extends from, and is in communication with, the second compartment. The tubular portion defines vacuum reservoir device is disposed within the first compartment and is in communication with the second compartment. The vacuum reservoir device is capable of taking up substantially all residual interstitial gases and thereby ensuring thorough infusion of the liquid component into the orthopedic graft material component upon release of the dividing device so as to form either a hydrated and/or rehydrated orthopedic graft material. An optional gas permeable but liquid impermeable membrane is disposed between the second compartment and the pocket portion.