Effect of Surgical Margin Width on Recurrence and Survival in Patients With Hepatic Oligometastasis of Colorectal Cancer

"According to the Chinese Guidelines for the Diagnosis and Comprehensive Treatment of Liver metastases of Colorectal Cancer (2023 edition), R0 resection of metastatic tumors is satisfied, and the objective is to preserve sufficient functional liver tissue, and the surgical margin width is less than 7mm"

Combined with intraoperative B-ultrasound guidance, 3D reconstruction and intraoperative navigation, the surgical margin width of metastatic tumor was greater than or equal to 7mm