Health Sciences · Robert W. Jackson Arthroscopy
A metal device consisting of two interlocking components. The larger component, the side plate, consists of a hollow barrel, at one end of which a plate with two screw holes is attached at an angle.
The smaller component is a metal lag screw consisting of a rod ending compression screw tip. The rod portion is inserted into the barrel of the side plate. The screw portion protrudes from the end of the barrel opposite the angled plate.
Accession Number: 2025.JAC.289
Alternative Name:
Primary Materials: Stainless Steel (316L)
Printed on the barrel of the lag screw: “316L [“R” Logo] 3 1/2″; Printing on the upper surface of the plate is difficult to read, but may read as follows: “316L [“R” Logo] 140 2″ P”
(With lag screw at minimum extension): Height = 9, Width – 1.8, Length = 6.5
This device is used to repair hip fractures. The lag screw is inserted through the neck of the femur into the ball of the hip where it is anchored in place by compression screw at its tip. The opposite end of the lag screw is captured by the barrel of the side plate, with the plate portion anchored to the femur by cortical screws.
The “dynamic” element refers to the capacity of the lag screw to slide within the barrel of the side plate. Hip fractures tend to compress slightly as they heal. This dynamic element allows for this compression while preventing the anchored portion from breaking through the ball of the hip.
This item is in good cosmetic condition and appears to be unused. It has light signs of wear across its surface.
Associated Instruments:
Manufacturer:
Date of Manufacture: c. 1970s.
The Robert W. Jackson Arthroscopy Collection was acquired by the University of Toronto from Dr. Jackson’s family on November 12th, 2020.
Additional Information and References:
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