Hip joint endoprosthesis
First Claim
1. A hip joint prothesis comprising a hemispherical socket configured to be anchored in a recess of an acetabulum, the socket having a socket opening terminating at a peripheral rim and defining a plane at the rim, at least two elongated tubular guides each to be located at a cranial margin of the bone and having a longitudinal axis, means connecting the tubular guides to the socket and laterally of the socket opening so that their longitudinal axes are perpendicular to the plane of the socket opening, and fastening means having a proximal portion slidably disposed in the tubular guides and a distal portion for anchoring the socket to the bone.
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Abstract
An endoprosthesis for a hip joint includes an acetabular implant and a femoral implant. The acetabular implant has a socket with a socket opening intersecting the rim of the socket in a plane. At least two tubular guides for positioning at the cranial region of the bone are attached to and laterally offset from the socket opening, have axes perpendicular to the socket plane, and slidingly receive attachment screws the ends of which are threaded into the bone. The femoral implant has a spherical head movably positioned in the acetabular socket which is mounted to an attachment member the distal side of which has a conical attachment surface bearing against the resected femoral neck. A sliding rod extends coaxially with the femoral neck axis laterally and distally into a sleeve connected to a plate which is secured to the femur.
82 Citations
4 Claims
- 1. A hip joint prothesis comprising a hemispherical socket configured to be anchored in a recess of an acetabulum, the socket having a socket opening terminating at a peripheral rim and defining a plane at the rim, at least two elongated tubular guides each to be located at a cranial margin of the bone and having a longitudinal axis, means connecting the tubular guides to the socket and laterally of the socket opening so that their longitudinal axes are perpendicular to the plane of the socket opening, and fastening means having a proximal portion slidably disposed in the tubular guides and a distal portion for anchoring the socket to the bone.
Specification