| 摘要 |
The present invention provides an improved orthopedic system for the modification of the distance between the maxilla 21 and zygoma (22). In a preferred embodiment, the system includes first and second footplates (500, 700) attached to an orthopedic device (10). The second footplate (700) is attached to the zygoma (22), with the first footplate (500) being mechanically coupled to the maxilla (21). This mechanical coupling is achieved either through attachment directly to the maxilla (21) or by attachment to a construct which itself is attached to the patient's teeth. The orthopedic device (10), which may be a distractor, allows for modification of the distance between the maxilla (21) and zygoma (22). The entire system can advantageously be placed intra-orally within a patient. In a preferred embodiment, the device (10) does not increase in overall length (A) upon activation. In another preferred embodiment, the second footplate (700) is offset by a predetermined distance (C) from the end of the actuator (911), allowing the actuator (11) to be placed under and behind at least a portion of the zygoma (700). Methods for using this novel orthopedic system are also disclosed.
|
