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US 2001/0041937 A1Published application
Bicortical tibial fixation of acl grafts
AssigneePeter F.McGee
InventorsBERNHARD RIESER, REINHOLD SCHMIEDING
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AssigneePeter F.McGee
InventorsBERNHARD RIESER, REINHOLD SCHMIEDING
Estimating the term…
A method of securing a graft in a bone tunnel, in which graft is secured within the tunnel at both the entrance and the exit ends of the tunnel to provide bicortical fixation of the graft in the bone. Interference screws or other fixation devices are used to secure the graft within the tunnel. For tibial tunnel fixation using an interference screw, the back end of the distal screw is angled so that it closely approximates the angle of the outer tibial tunnel rim. The distal screw is non-cannulated to prevent hematomas from being formed by blood flowing from the tibial tunnel into the surrounding soft tissue. The proximal screw has a restricted cannula to minimize the flow of synovial fluid entering the tibial tunnel. Advantageously, the space between the two screws fills with blood to promote faster healing and incorporation of the graft in the tibial tunnel.
A method of securing a graft in bone, the method comprising the steps of:
A set of fixation devices for securing a graft in a bone tunnel, the tunnel having a proximal end and a distal end located at opposing ends of the tunnel, the set of fixation devices comprising:
An interference screw for graft fixation, the screw having at least one of a fully-threaded outer surface, a back end with an angled surface, and a rounded front end.
Dependencies are inferred from the claim text.