Fig. 3

The diagram unfolds a clear comparison between preoperative and the final follow up results of all the items in ODI as a whole in three aspects: improved, unchanged and deteriorated (n = 15). ODI indicates oswestry disability index
The diagram unfolds a clear comparison between preoperative and the final follow up results of all the items in ODI as a whole in three aspects: improved, unchanged and deteriorated (n = 15). ODI indicates oswestry disability index