Surgical protocol for fixation of osteoporotic bone using inflatable device
DCFirst Claim
1. A method of fixation of a fracture or impending fracture of an osteoporotic bone having osteoporotic bone marrow therein comprising:
- forming a passage in the bone marrow;
compacting the bone marrow to increase the volume of said passage andfilling 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 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 osteoporotic 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 osteoporotic 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 osteoporotic bone marrow, following which a checker-shaped inflatable device is inserted into the cavity to further compact the osteoporotic 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 osteoporotic bone marrow.
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Citations
28 Claims
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1. A method of fixation of a fracture or impending fracture of an osteoporotic bone having osteoporotic 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)
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15. A method of fixation of an osteoporotic fracture of a bone containing osteoporotic bone marrow therein comprising:
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drilling said bone to form a passage therein; inserting an inflatable device in said recess; inflating the device in the passage to increase the volume thereof and to force the osteoporotic bone marrow outwardly of the passage and against the bone 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 (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification