Implant retaining device

Abstract

There is provided an implant retaining device, which has the effect of preventing an intervertebral implant from jutting out of the receiving bed. The implant retaining device generally includes a plate having at least one throughbore to receive a screw, and a screw for securing the plate to the vertebrae. The plate may be dimensioned to cover a portion of the opening of a receiving bed, and thus, need only be secured to a single vertebral body. In an alternate embodiment, the plate may be used during bone fracture correction procedures to prevent a bone screw from backing out of engagement with adjacent bone sections. A method of retaining an intervertebral implant using the device is also provided.

What is claimed is:  
     
         1 . An implant retaining device comprising: 
 a body dimensioned to cover at least a portion of an opening to a receiving bed formed between adjoining vertebral bodies, the body having a single throughbore dimensioned to receive a screw; and    a screw for securing said body to one of the adjoining vertebral bodies.    
     
     
         2 . The implant retaining device as recited in  claim 1 , wherein said body has a rectangular configuration.  
     
     
         3 . The implant retaining device as recited in  claim 1 , wherein said body has a circular configuration.  
     
     
         4 . The implant retaining device as recited in  claim 1 , wherein said body is curved along its longitudinal axis.  
     
     
         5 . The implant retaining device as recited in  claim 1 , wherein said body is curved along its transverse axis.  
     
     
         6 . The implant retaining device as recited in  claim 1 , wherein said body is in the form of a plate.  
     
     
         7 . The implant retaining device as recited in  claim 1 , wherein said body is formed from partially demineralized bone.  
     
     
         8 . A method of retaining an intervertebral implant within a receiving bed formed between adjoining vertebral bodies, the method comprising the following steps: 
 providing a retaining plate having at least one throughbore for receiving a bone screw, the retaining plate being dimensioned to extend at least partly across a disk space defined between the adjoining vertebral bodies, and attaching the retaining plate to only one of the adjoining vertebral bodies such that the retaining plate extends at least partly across the disk space between the vertebral bodies.    
     
     
         9 . The method as recited in  claim 8 , wherein said plate has a rectangular configuration.  
     
     
         10 . The method as recited in  claim 8 , wherein said plate has a circular configuration.  
     
     
         11 . The method as recited in  claim 8 , wherein said plate is curved along its longitudinal axis.  
     
     
         12 . The method as recited in  claim 8 , wherein said plate is curved along its transverse axis.  
     
     
         13 . The method as recited in  claim 8 , wherein said plate is formed from bone.  
     
     
         14 . The method as recited in  claim 13 , wherein the bone is cortical bone.  
     
     
         15 . The method as recited in  claim 13 , wherein the bone is partially demineralized bone.