Effect of B-Twin intervertebral cage in treating lumbar degenerative instability with posterior mini-incision
	    		
		   		
	    	
    	
    	
   		
        
        	
        		- VernacularTitle:微创B-Twin椎间融合器治疗腰椎不稳的疗效分析
 
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Jinshun YANG
			        		
			        		;
		        		
		        		
		        		
			        		Zhuangwen LIAO
			        		
			        		;
		        		
		        		
		        		
			        		Wenduo HUANG
			        		
			        		
		        		
		        		
		        		
		        		
		        		
			        		
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Journal Article
 
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		degenerative lumbar instability;
			        		
			        		
			        		
				        		interbody fusion;
			        		
			        		
			        		
				        		B-Twin
			        		
			        		
	        			
        			
        		
 
        	
            
            
            	- From:
	            		
	            			Orthopedic Journal of China
	            		
	            		 2006;0(13):-
	            	
            	
 
            
            
            	- CountryChina
 
            
            
            	- Language:Chinese
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	[Objective] To explore the effect of B-Twin intervertebral cage for degenerative lumbar instability with posterior mini-incision.[Methods]Thirteen patients(13 disc-spaces)treated with B-Twin intervertebral cage in combination with autogenous morselized bone were enrolled in this study.Among the patients,11 had degenerative instability in L4、5 and 2 in L5S1.Patients were graded postoperatively with JOA scoring system.[Results]The lower back pain and leg pain were relieved significantly in all patients after operation.All were followed-up for an average of 16.2 months,and the JOA scores inproved from 4.2 preoperatively to 14.4 at the final follow-up.The good to excelleat rate was 92.3%.The bony fusions presented in an average of 19.8 weeks postoperatively by CT scan.Neither cage loosening nor neurological injury was found.[Conclusion]B-Twin intervertebral cage combined with autogenous morselized bone insertion for lumbar degenerative instability by posterior mini-incision operation is a good technique,which could achieve satisfactory clinical results with less injury.