Artikel
XLIF with stand-alone cage for treatment of L4-L5 discopathy associated with L5 sacralization
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Veröffentlicht: | 2. Juni 2015 |
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Gliederung
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Objective: The L4-L5 disc disease associated with a defect of differentiation L5 (sacralization) is a common degenerative disease. Some interesting pathophysiological considerations can be made about this situation. In fact, probably the disc disease comes from an increased stress on the disc L4-L5 which is iperlordotic for compensation of L5-S1 hypolordosis related to disc hypoplasia.
Method: We report a series of 8 cases treated with an XLIF stand-alone cage.
Results: Only one case has persistent pain without radiological signs of failure.
Conclusions: The appropriate size of the cage seems to be the key element in conjunction with absolute respect of the integrity of the vertebral endplates. The cage must be large enough to allow an adequate tension band of the longitudinal ligaments. The fundamental limitation on the feasibility of this approach is represented by the relationship between the iliac wing and the L4-L5 discal space. The results seem stable over time although a longer follow-up will be necessary.