Radiological method for preoperative determination of isometric

Details Radiological method for preoperative determination of isometric Radiological method for preoperative determination of isometric

1996-06-24

1998-04-28

Buiz, Michael

Surgery

Instruments

Orthopedic instrumentation

606 86, 606 96, 606 98, 606 87, A61B 1717

Patent

active

057439095

ABSTRACT:
A surgical aiming instrument for a lining and guiding a piercing tool used to make a tunnel through a tibia which intersects two predefined points of the knee joint includes at its distal end a tip to be temporarily inserted in the bone. The instrument further includes means for positioning the instrument relative to the second of the predefined points. A second hollow member in line with the first member and defining therewith an axis X--X is also provided. The instrument further includes a flat arm connecting the first and second members as well as a handle. The tip is on the axis of the second member. A method of preoperative determination of isomeric attachment points includes the steps of taking two x-rays of the knee, one in an extended position and one at 90.degree. of flexion, superimposing the x-rays, and marking various points and lines thereon from which the isomeric attachment points may be determined.

REFERENCES:
patent: 4708139 (1987-11-01), Dunbar, IV
patent: 5112337 (1992-05-01), Paulos et al.
patent: 5570706 (1996-11-01), Howell

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