Compression hip screw, which is a two-piece object made up of (a) a hip plate and (b) a lag screw; the hip plate has a shaft tht is straight and then bends at a 130° angle; the plate is slightly concave with five holes through the middle, slightly rounded outer edges and a rounded end; after the 13…
Compression hip screw, which is a two-piece object made up of (a) a hip plate and (b) a lag screw; the hip plate has a shaft tht is straight and then bends at a 130° angle; the plate is slightly concave with five holes through the middle, slightly rounded outer edges and a rounded end; after the 130° angle, the shaft is cylindrical and hollow and has a round open end on both ends; the shaft houses (b) the lag screw; the lag screw is cylindrical with a small, threaded hole through the centre; the end has a round, threaded opening; the tip has a larger diameter threaded section; there is a groove along the outside edge of one side that matches with an upraised line inside the cylindrical shaft; this prevents the lag screw from rotating within the shaft.
Number Of Parts
2
Part Names
a - plate - Size: Length 14.1 cm x Width 3.6 cm x Depth 2.0 cm
b - lag screw - Size: Length 7.6 cm x Diameter 1.1 cm
Provenance
Used at Kingston General Hospital by Dr. Charles Sorbie
(a) The back of the plate has, "Z [inside a circle] 1131 74 4 HOLE 130° 506580" etched into the metal; (b) the screw has, "Z [inside a circle] 1131 02 - 30 624630 // 3 IN 76 MM" etched into the metal.
Permanent Location
Storage Room 0010
0010-E2-7
Unit Of Measure
centimeters
Condition Remarks
The metal shows some wear; no corrosion is visible.
Copy Type
Original
Reference Types
Book
Person
Reference Comments
Dr. Charles Sorbie; "Surgical Instruments & Hospital Equipment," 23rd Edition, by Downs Surgical PLC, c. 1982, p. G29; "1992 Product Catalogue," by Howmedica International, 1992, p. G22
Research Facts
The screw modification to the hip plate compresses the fracture.