Prosthetic hip implantation method

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/46 (2006.01) A61B 17/15 (2006.01) A61B 17/17 (2006.01) A61B 17/16 (2006.01) A61F 2/36 (2006.01)

Patent

CA 2211074

A surgical instrument system for preparing the medullary canal of the femur for implanting a prosthetic femoral component includes a template (4) to be used in determining osteotomy position for an x-ray (2). A gauge (10) is provided to locate and mark this position on the anterior femur (8). A distal reamer (56) having an elongated drive shaft (60) is used to form the canal to receive the distal stem of the femoral component. A methaphyseal template (80) is used to determine the proper anteversion/retroversion and a chisel (90) is used to cut the lateral area of the femur, both of which are guided by the elongated reamer shaft (60). A proximal broach (100) also guided by the reamer shaft (60) is used to shape the proximal medullary canal.

Un instrument chirurgical servant à préparer le canal médullaire du fémur pour l'implantation d'un prothèse comprend un gabarit (4) pour déterminer la position de l'ostéotomie à partir de rayons X (2). Un calibre (10) est prévu pour localiser et marquer cette position sur l'avant du fémur (8). Un instrument d'alésage distal (56) ayant un arbre d'entraînement allongé (60) est utilisé pour former un canal destiné à recevoir la tige distale du composant fémoral. Un gabarit métaphysiaire (80) est utilisé pour déterminer l'antéversion/la rétroversion correctes et un ciseau (90) est utilisé pour couper la zone latérale du fémur, les deux étant guidées par l'arbre allongé (60) de l'instrument d'alésage. Une broche proximale (100) est également guidée par l'arbre (60) de l'instrument d'alésage pour former le canal médullaire proximal.

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