United States Patent [19] [li] Patent Number: 4,800,874
David et al. [45] Date of Patent: Jan. 31, 1989
[54] ANATOMICAL BONE PLATE AND/OR TRANSFIXION PLATE
[75] Inventors: Thomas David; Dieter Uyka, both of Vienna, Austria
[73] Assignee: Vereinigte Edelstahlwerke A.G., Vienna, Austria
[21] Appl. No.: 73,575
[22] Filed: Jul. 14,1987
[30] Foreign Application Priority Data
Jul. 15, 1986 [AT] Austria 1927/86
Dec. 2, 1986 [AT] Austria 3215/86
[51] Int. CIS A61F 5/04
[52] U.S. CI 128/92 YP; 128/92 Y
[58] Field of Search 128/92 Y, 92 YP, 92 YL,
128/92 YJ, 92 YF, 92 VY, 92 VW; 623/22
[56] References Cited
U.S. PATENT DOCUMENTS
3,577,853 5/1971 Roberts 128/92 Y
3,824,631 7/1974 Burnstein et al 128/92 YJ
4,120,298 10/1978 Fixel 128/92 YP
4,403,606 9/1983 Woo et al 128/92 Y
4,511,335 4/1985 Tatum, Jr 128/92 YP
4,573,458 3/1986 Lower 128/92 Y
FOREIGN PATENT DOCUMENTS
0100114 2/1984 European Pat. Off. 128/92 YP
2410057 7/1975 Fed. Rep. of Germany .
8201645 5/1982 PCTlnflAppl 128/92 YL
1122305 11/1984 U.S.S.R 128/92 YP
OTHER PUBLICATIONS
Zimmer-U.S.A., Inc., "Z Product Encyclopedia" 1978, pp. B168 & B169, Lib. of Cong. #78-64509.
Primary Examiner—Stephen C. Pellegrino
Assistant Examiner—Ralph Lewis
Attorney, Agent, or Firm—Holman & Stern
[57] ABSTRACT
A bone transfixion plate for transfixing an acetabulum fragment to the os ilium, by screw means, following pelvic osteotomies with rotation of the roof of the acetabulum, particularly in a human patient. The plate comprises: a proximal region for application to the os ilium which is at least generally adapted for close application to the region to which it is applied; a distal region for application to the acetabulum fragment which is at least generally adapted for close application to the region to which it is applied, these regions being disposed at a mutual angle in the ventrodorsal/mediolateral plane in the range 10°-50°, preferably about 30" (or, in a plate for a dog, the angle in the equivalent plane is 20°-70° and preferably 30°-60°); and for forming this angle a generally wedge-shaped transition zone between the two regions, the greater width of the transition zone being preferably at the ventral edge of the plate (or, in a plate for a dog, preferably at the dorsal edge). The plate is an element of a transfixion system which may include wire loops passed over two screws in the region of the foramen ischiadicum, and additional transfixion means to the os ischium and os pubis comprising one wire loop passed over two screws, one of which is affixed to the acetabulum fragment and the other of which is affixed to the os pubis.
19 Claims, 6 Drawing Sheets
