Table 5. Treatment and outcome of 28 patients with recurrent GCT in the spine.

Factors		n	Recurrence rate (%)	p	Adjusted p	OR
Resection mode	En bloc / Piecemeal	10/15	9.1% vs. 47.1%	0.025	0.037*	0.007
Adjuvant radiotherapy	Yes/No	6/19	14.3% vs. 38.1%	0.334	0.328
Bisphosphonate treatment	Yes/No	6/19	26.3% vs. 44.4%	0.2	0.352

OR: Odds ratio

*: p value ≤ 0.05