Method and apparatus for osteochondral autograft transplantation
DCFirst Claim
1. A method of transplanting osteochondral cores in a joint having articular cartilage and subchondral bone, using a cutting tube having a distal end and a pin, the method comprising the steps of:
- a. inserting the pin into the cutting tube to form a cutting tube and pin assembly;
b. introducing the cutting tube into the joint;
c. placing the distal end of the cutting tube and pin assembly prior to introducing the pin into the joint over a selected site in the joint; and
d. driving the distal end of the cutting tube into the subchondral bone to a predetermined depth to form an osteochondral core.
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Accused Products
Abstract
A method and apparatus for autogenous transplantation of articular cartilage with bone from one site, such as in the knee, to another to treat chondral defects. Graft harvesters and recipient site harvesters create identically-sized donor graft osteochondral cores and recipient sockets. Collared pins disposed within the harvesters facilitate removal of the harvested cores. Windows formed in the side of the harvester tubes allow visualization of the graft, such as when being inserted into the recipient socket. A removable three-piece driver/extractor is provided to allow for impact-driving and depth control of the harvesters into the selected sites.
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Citations
20 Claims
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1. A method of transplanting osteochondral cores in a joint having articular cartilage and subchondral bone, using a cutting tube having a distal end and a pin, the method comprising the steps of:
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a. inserting the pin into the cutting tube to form a cutting tube and pin assembly; b. introducing the cutting tube into the joint; c. placing the distal end of the cutting tube and pin assembly prior to introducing the pin into the joint over a selected site in the joint; and d. driving the distal end of the cutting tube into the subchondral bone to a predetermined depth to form an osteochondral core. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of transplanting osteochondral cores in a joint having articular cartilage and subchondral bone, using a cutting tube having a distal end and slotted windows, and a pin slidably disposed within the tube, the method comprising the steps of:
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a) introducing the cutting tube into the joint; b) placing the distal end of the cutting tube over a selected site in the joint; c) driving the cutting tube into the subchondral bone to form an osteochondral core; d) removing the cutting tube with the osteochondral core from the selected site; e) visualizing the osteochondral core within the cutting tube; and f) advancing the pin with respect to the cutting tube so as to urge the osteochondral core from the cutting tube. - View Dependent Claims (14)
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15. A method of transplanting osteochondral cores in a joint having articular cartilage and subchondral bone, using a tube having means for visualizing an osteochondral core contained within the tube, the method comprising the steps of:
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a) introducing an osteochondral core into the tube; b) introducing the tube to a socket formed at a recipient site within the joint; c) urging the osteochondral core from the tube into the socket; d) visualizing the osteochondral core within the tube by way of the visualization means; and e) orienting the osteochondral core with respect to the socket at the recipient site. - View Dependent Claims (16)
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17. A method of transplanting osteochondral cores in a joint having articular cartilage and subchondral bone, using a tube having a distal end and a pin, the method comprising the steps of:
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inserting the pin into the tube; placing the distal end of the tube over a selected site in the joint; introducing an osteochondral bone core into the tube; removing the tube from the selected site with the bone core remaining within the tube; positioning the distal end of the tube at an opening of a bone socket; and urging the pin distally so as to advance the bone core into the bone socket. - View Dependent Claims (18, 19, 20)
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Specification