Additionally, the mean operation time tended to be shorter in the HDOI group than in the conventional group; however, this difference approached but did not reach statistical significance (59.9 vs. 69.2 min, p = 0.058).
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Enhancing Transforaminal Full Endoscopic Discectomy: Efficacy of the Hand Down Outside-In (HDOI) Technique.
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0.0580
0.0580