Endoprosthetic femoral head

Details Endoprosthetic femoral head Endoprosthetic femoral head

1975-05-28

1976-02-24

Frinks, Ronald L.

Surgery

Truss

Pad

128 92CA, A61F 124

Patent

active

039394980

ABSTRACT:
An endoprosthetic femoral head device comprising a ball-shaped head connected, by way of a necked portion, to the wider end of a tapered intramedullary stem is modified to facilitate implantation involving detachment and re-attachment of the greater trochanter. The modification comprises the provision of a slot which extends longitudinally along the wider end of the stem, is open at one end, and has an interior width greater than that of its longitudinal mouth. A bolt-like member is adjustably located by its head in this slot with its shaft projecting from the device for passage through a bore formed in the detached trochanter. The trochanter is thus relocated and is secured by a fastener on the shaft free end. Preferably a spider-form washer with spring legs is located between the trochanter and fastener, and a screw-in plug is applied to the slot to positively locate the bolt head.

REFERENCES:
patent: 3486500 (1969-12-01), Ball et al.
patent: 3793650 (1974-02-01), Ling et al.
patent: 3859669 (1975-01-01), Shersher
patent: 3875936 (1975-04-01), Volz

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