Table 1. The indicated procedure was based on stage classification. (Res: resection; Amp: amputation; R-C: radiation - chemotherapy)

Stage	TP	Indication
1	Benign, non-malignization	Conservative, Res or curettage
2	Benign, seldom maglinization	Conservative and follow-up, En bloc Res
3	Borderline malignant, intra-compartment - Borderline malignant, extra-compartment	En bloc Res + R-C or wide Res Wide Res
IA	Low malignant, intra-compartment, non-metastasis	Wide Res
IB	Low malignant, extra-compartment, non-metastasis	Wide Res, Amp
IIA	High malignant, intra-compartment, non-metastasis	Wide Res, radical Res+ R-C
IIB	High malignant, extra-compartment, non-metastasis	Amp, wide Res, radical Res + R-C
IIIA	Malignant, intra-compartment, metastasis	Wide Res or Amp, +/- removal metastasis tumor + R-C
IIIB	Malignant, extra-compartment, metastasis	Amp + R-C or salvage therapy