الفهرس 
Evaluation of clinical and radiological results of recurrent disc herniation for redo discectomy with or without Fusion; A randomized comparative study
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Abstract
Recurrent lumbar disc herniation (RDH) is a common negative sequela of primary discectomy. It has been defined as the presence of herniated disc material at the same level, whether ipsilateral or contralateral, in a patient who has experienced a pain-free interval of at least 6 months following initial surgery for disc herniation.
The results of this study revealed that, revision discectomy with fixation is associated with prolonged operation time, higher amount of blood loss and patient’s length of hospital stay, however it is associated with superior improvement in pain and disability on the long term follow up including better VAS score for back and leg pain and ODI.
Furthermore, it showed lower amount of disc subsidence after 1 year of follow up and hence higher ability for prevention of segmental stability without significantly higher complications compared with revision discectomy alone.
Thus, this study recommends redo-discectomy with fixation for treatment of RLDH. However, the choice of the optimal procedure should be on case-by-case basis, taking into account the patient and surgical characteristics