A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
3/105
A61F 2/36 (2006.01)
Patent
CA 1305584
EXTRAMEDULLALARY FEMORAL HEAD-NECK PROSTHESIS AND METHOD OF IMPLANTING SAME ABSTRACT of the DISCLOSURE An extramedullary femoral head-neck prosthesis for implantation in a femur, the latter having a shaft and a neck at the upper end of the shaft at the medial side of the femur. The prosthesis comprises a sideplate and screws for securing the sideplate to the lateral side of the femoral shaft. A barrel extends obliquely upwardly from the side- plate and has an open upper end. The barrel is adapted to be inserted in a bore extending obliquely upwardly through the femoral shaft from the lateral side of the shaft to the femoral neck. The prosthesis also includes a ball assembly comprising a ball stem adapted to be inserted coaxially into the barrel through the open upper end of the barrel and to be slideably received therein, a neck at the upper end of the stem adapted for face-to-face engagement with the femoral neck, and a ball on the neck. The ball item is sized for a relatively close clearance fit in the barrel. The ball stem is retained and held against upward movement in the barrel so that the neck of the ball assembly presses against and com- presses the femoral neck. A method of implanting such a prosthesis is also disclosed.
582603
Grimes James B.
Smart & Biggar
LandOfFree
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