Instrument for evaluating balance of knee joint

Details Instrument for evaluating balance of knee joint Instrument for evaluating balance of knee joint

A - Human Necessities

61

B

A61B 17/02 (2006.01) A61F 2/46 (2006.01) A61B 17/28 (2006.01) A61F 2/38 (2006.01)

Patent

CA 2284661

A knee joint balancing instrument (10) having a first body (14) that includes a first paddle (24) for engaging a proximal end of a tibial bone and a second body (18) that includes a second paddle (50) for engaging a distal end of a femoral bone. A rack (16) is attached to the first body and is moveable relative thereto in a superior-inferior direction. The second body is pivotally mounted to the rack for pivoting about an axis extending in an anterior-posterior direction. Tension can be induced in the medial and lateral soft tissues of the knee joint by moving the rack.

La présente invention concerne un instrument (10) permettant d'équilibrer l'articulation du genou présentant un premier élément (14) comprenant une première molette (24) permettant d'engager l'extrémité proximale de l'os tibial et un second élément (18) comprenant une deuxième molette (50) permettant d'engager l'extrémité distale de l'os fémoral. Un crémaillère (16) est fixée au premier élément mobile par rapport à celui-ci dans une direction haut-bas. Le second élément est fixé en pivotement à la crémaillère afin de pouvoir pivoter autour d'un axe s'étendant dans la direction avant-arrière. La tension peut être induite dans les parties molles internes et externes de l'articulation du genou en déplaçant la crémaillère.

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