In this video, Dr. Christian Bisanga features one of his patients who received 4022 grafts over 2 sessions of follicular unit extraction (FUE).  This patient received previous work at another clinic and the purpose of this procedure is to repair the old work.
      
            
  
    
              
      
    
      
        
            
    
  
  
      
  Patient gender
              Male
          
  Patient sessions
              2
          
  Patient surgery type
              Repair
          
  Patient grafts
              4022
          
  
      Norwood stage 4A
In stage 4A, a person will not experience a bald spot on the back of their head, but they will instead lose the dips in their hairline and have a deeper āUā shape when viewed from above.