Surgical Outcomes of Major Vascular Resection for Retroperitoneal Liposarcoma from a High‑volume Sarcoma Center: a Propensity Score Matching Analysis

Radical resection of retroperitoneal liposarcoma (RLPS) may necessitate vascular resection and reconstruction. The study was conducted to assess surgical outcomes of surgery for RLPS with major vascular involvement. Patients with RLPS who underwent surgical resection at the Sarcoma Center of Peking University Cancer Hospital between April 2011 and December 2022 were identified from a prospectively maintained database. Patients were classified into two groups: vascular resection and non-vascular resection groups. A propensity score matching analysis was performed to eliminate baseline differences between the groups. Surgical details and postoperative outcomes were analyzed. Furthermore, prognostic factors for local recurrence-free survival (LRFS) and overall survival (OS) were assessed. Overall, 199 patients were identified and the median follow-up period was 48 (interquartile range [IQR] 45–69) months. Vascular resection was performed in 42 (21