Surgical protocol for fixation of bone using inflatable device
DCFirst Claim
1. A method of fixation of a fracture or impending fracture of a bone having bone marrow therein comprising:
- forming a passage in the bone marrow;
compacting the bone marrow to increase the volume of said passage; and
filling the passage with a flowable material capable of setting to a hardened condition.
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Abstract
A method and apparatus for the fixation of osteoporotic and non-osteoporotic bones and especially vertebral body compression fractures, Colles'"'"' fractures and fractures of the proximal humerus. The method of the present invention includes a series of steps including penetrating the bone having the fracture with a guide pin, drilling the bone marrow of the bone to enlarge the cavity to be treated, following which a bone specific inflatable device is inserted in the cavity and inflated. The expansion of the device causes a compacting of the bone marrow against the inner surface of the outer wall of the bone to be treated to further enlarge the cavity. When this occurs, a flowable synthetic bone material or methyl methacrylate cement is directed into the cavity and allowed to set to a hardened condition. Following this, the instruments are removed. In the fixation of vertebral body fractures, an elliptical inflatable device is first used to initiate the compacting of the bone marrow, following which a substantially cylindrical inflatable device is inserted into the cavity to further compact the bone marrow in all directions. In the fixation of Colles'"'"' fractures and proximal humerus fractures, a gourd-shaped inflatable device is used to compact the bone marrow.
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Citations
29 Claims
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1. A method of fixation of a fracture or impending fracture of a bone having bone marrow therein comprising:
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forming a passage in the bone marrow; compacting the bone marrow to increase the volume of said passage; and filling the passage with a flowable material capable of setting to a hardened condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of fixation of a fracture of a bone containing bone marrow therein comprising:
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drilling said bone to form a recess therein; inserting an inflatable device in said recess; inflating the device in the recess to increase the volume thereof and to force the bone marrow outwardly of the recess to form a void in the bone; and filling the void in the bone with a flowable material capable of setting to a hardened condition. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification