US 6,123,709 A · Bone buttress plate and method of using same

Abstract

A bone buttress plate and a method of using the same to fixate a lateral surface of a fractured hindfoot calcaneus. The plate includes a main body, a first and a second leg, and an extension member. Each leg attaches to and extends from the main body. The extension member includes a yoke, a first arm, and a second arm. The yoke attaches to the main body and extends from the main body opposite to the legs. Each arm attaches to and extends from the yoke. The invention further includes a surgical method of fixating a fractured calcaneus exposed in a surgical theater, which includes providing a bone buttress plate including a main body, a first and a second leg, and an extension member. Each leg attaches to and extends from the main body. The extension member includes a yoke, a first arm, and a second arm. The yoke attaches to the main body and extends from the main body opposite to the legs. Each arm attaches to and extends from the yoke. The method then includes shaping the plate from a substantially planar configuration to an extent required for conformity to a lateral surface of the fractured calcaneus. The plate is then secured with mechanical fasteners to the fractured calcaneus, each mechanical fastener retentionally engaged with said bone buttress plate and an underlying region of the fractured calcaneus.

Claims44

Dependent claims

A bone buttress plate consisting essentially of:

(a) a main hub body having at least two openings, each such opening accommodating the passage of at least one mechanical fastener therethrough;
(b) first and second legs attached to and extending from the main hub body wherein:
i) each of the first and second legs has at least one opening;
ii) each opening accommodates the passage of at least one mechanical fastener therethrough;
and
iii) the first and second legs form an angle which is less than 60.degree.;
and
(c) an extension member attached to and extending from the main hub body from a location which is generally opposite to the legs and having at least one opening therein accommodating the passage of at least one mechanical fastener therethrough.

5 more elements

A calcaneous bone buttress plate for buttressing the lateral surface of a fractured calcaneous comprising a large body fragment, a central fragment, an anteromedial fragment, an intervening fragment, a body fragment lying posterior to a dense sustentacular fragment containing a sustentactulum tali, and optionally comprising an anterior articular facet fragment, said buttress plate consisting essentially of:

(a) a main hub body having at least two openings, each such opening accommodating the passage of at least one mechanical fastener therethrough;
(b) first and second legs attached to and extending from the main hub body wherein:
i) each of the first and second legs has at least one opening;
ii) each opening accommodates the passage of at least one mechanical fastener therethrough;
and
iii) the first and second legs form an angle which is less than 60.degree.;
and
(c) an extension member attached to and extending from the main hub body from a location which is generally opposite to the legs and having at least one opening therein accommodating the passage of at least one mechanical fastener therethrough;
wherein the bone buttress plate is arranged in relation to the fractured calcaneous such that the first leg extends generally toward an upper third of the calcaneous posterior surface and can be secured thereto by mechanical fastener(s) extending through at least two of the openings of the first leg;
wherein the second leg extends generally toward a lower third of the calcaneous posterior surface and can be secured thereto by mechanical fastener(s) extending through at least two of the openings of the first leg;
wherein the legs are positioned in relation to the hub body such that when the first leg is attached to an upper third of the calcaneous posterior surface, and the second leg is attached to a lower third of the calcaneous posterior surface, the hub body supports mechanical fasteners entering through the openings of the hub body into the central fragment and anchoring into the sustentaculum fragment;
and
wherein the extension member is arranged in relation to the hub body such that when the first leg is attached to an upper third of the calcaneous posterior surface, and the second leg is attached to a lower third of the calcaneous posterior surface, and when the hub is attached to the central fragment, the extension member extends generally towards the anterior tuberosity and the great apophysis.

10 more elements

Dependencies are inferred from the claim text.

Bone buttress plate and method of using same

Life of this patent

Bone buttress plate and method of using same

Life of this patent

Abstract

Claims44