Expandable porous mesh bag device and methods of use for reduction, filling, fixation and supporting of bone

Abstract

The invention provides a method of correcting numerous bone abnormalities including bone tumors and cysts, avascular necrosis of the femoral head, tibial plateau fractures and compression fractures of the spine. The abnormality may be corrected by first accessing and boring into the damaged tissue or bone and reaming out the damaged and/or diseased area using any of the presently accepted procedures or the damaged area may be prepared by expanding a bag within the damaged bone to compact cancellous bone. After removal and/or compaction of the damaged tissue the bone must be stabilized.

1 . A method of treating an vertebral body having a superior endplate and an inferior endplate, comprising the steps of: 
 inserting a container into an vertebral body;    deploying said container within said vertebral body;    injecting a bone filler material into said container under pressure;    whereby said pressure supplies a distraction force to move said superior and inferior endplates apart; and    ending injection after said endplates have moved apart.    
     
     
         2 . A method of treating a vertebral body having a superior endplate and an inferior endplate, comprising the steps of: 
 inserting a container into the vertebral body;    deploying said container within said vertebral body;    injecting a bone filler material into said container under pressure;    whereby said pressure fills the container to an expanded state to reach a degree of correction required for the vertebral body; and    ending injection after said degree of correction is achieved.