Surgery – Instruments – Orthopedic instrumentation
Patent
1998-11-30
1999-12-28
Buiz, Michael
Surgery
Instruments
Orthopedic instrumentation
606 71, A61B 1756
Patent
active
060075368
ABSTRACT:
An orthopedic plate for treating orthopedic peri-articular fractures and osteotomies, including a flat and curve edged blade for insertion into the spongy or cancellous bone to gain fixation, a side plate portion which includes a plurality of screw holes, the side plate portion fixing the plate to the bone when screws are inserted in the screw holes, and a worm gear mechanism which connects the blade and the side plate portion, and which allows for variable angles between the blade and the side plate portion to overcome problems associated with fracture and osteotomy orientation and rigid fixation in cancellous bone in the metaphyseal portion of long bones such as the shoulder, knee, ankle, and hip, and thus, greatly facilitate the proper fixation and alignment for peri-articular fractures.
REFERENCES:
patent: 5674222 (1997-10-01), Berger et al.
patent: 5810822 (1998-09-01), Mortier
Biomet Inc., "ari-Angle Hip System", Technique Manual, Warsaw Indiana, pp. 1-7, 1998.
M. E. Muller et al., "Manual of Internal Fixation: Techniques Recommended by the AO-ASIF Group, 3.sup.rd Edition", Springer Verlag, Berlin, pp. 252-265, 1991.
Aaron A. Hofmann et al., "High Tibial Osteotomy", Clinical Orthopaedics, pp. 212-217, 1991.
T. Koshino et al., "High Tibial Osteotomy with Fixation by a Blade Plate for Medial Compartment Osteoarthritis of the Knee", Orthop Clin North Am., 20(2), pp. 227-243, 1989.
Andrew M. Wolff, M.D. et al., "The Treatment of nonunion of proximal tibial osteotomy with internal fixation", Clin Orthop, 250, pp. 207-215k, 1990.
Kazunori Yasuda, M.D. et al., "A Ten-to 15-year Follow-Up Observation of High Tibial Osteotomy in Medial C ompartment Osteoarthrosis", Clin Orthop, 282, pp. 186-195, 1992.
Buiz Michael
Goldberg Jonathan D.
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