Fig. 3. Cumulative incidence of LTP in all tumors and treatment-naïve tumors with technique efficacy.

Cumulative incidence of LTP was estimated as 7.9%, 28.6%, and 32.5% at 1-, 3-, and 5-year follow-up, respectively, in all 66 patients (solid line), and 7.2%, 22.6%, and 27.2% at 1-, 3-, and 5-year follow-up, respectively, in 59 patients with treatment-naïve tumors (dotted line).