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(P=0.009) after surgery. At 1 year follow up, navigation-assisted technique was

noted to have the significantly better improvement (mean ODI scores = 5.8)

compared with mini-open technique (mean ODI scores = 10.6, P=0.035).

However, SF36 assessment indicated that all patients were considerably

improved 12 months after surgery. But there was no statistically significant

difference of outcomes among these three techniques.

Conclusion: All three different surgical techniques of TPSF in patient with LS

provide the positive quality-of-life outcomes. Although mini-open group

seemed to obtain a faster recovery outcome according to ODI, there was no

statistical difference in term of QOL outcome in accordance with SF36

assessment.

2015 Annual Academic Research Study Presentations