Clinical effect of lumbar unilateral fixed intervertebral fusion via Mast Quadrant minimally invasive system

doi:10.3969/j.issn.1674-3806.2013.10.03

Abstract：Objective To discussed the feasibility ,validity and effect of lumbar unilateral fixed intervertebral fusion via Mast Quadrant minimally invasive system .Methods From May 2010 to May 2012,in our hospital,there were 22 patients undergoing surgery of lumbar unilateral fixed intervertebral fusion via Mast Quadrant minimally inva -sive system(the minimally invasive and unilateral fixed group ),and 25 patients undergoing open surgery of lumbar bi-lateral fixed intervertebral fusion ( the open and bilateral fixed group ) .Results In these respects such as length of in-cision, time of operation, intraoperative blood loss,postoperative hospitalization duration and postoperative wound pain duration, the minimally invasive and unilateral fixed group was superior to the open and bilateral fixed group (all P<0.01).One year after operation,the Japanese orthopeadic association (JOA) scores was higher and visual analog scale( VAS) scores was lower in the minimally invasion and unilateral fixed group than the open and bilateral fixed group(all P<0.01).While in the height of intervertebral space and the intervertebral fusion rate there was no statis -tically significant difference between the two groups ( P>0.05 ) .Conclusion The surgery of lumbar unilateral fixed intervertebral fusion via Mast Quadrant minimally invasive system and the surgery of lumbar bilateral fixed interverte -bral fusion have same clinical effects in recovery of intervertebral space height ,increasing of intervertebral fusion rate and reconstruction of lumbar spinal stability .However , the minimally invasive and unilateral fixed intervertebral fusion has advantages of less operative wound , shorter operative and hospitalizing time , more rapid recovery and fewer com-plications .