Oral squamous cell carcinoma (OSSC), Free flap reconstructive surgery (FFRS), Skeletal muscle mass (SMM), Overall survival (OS), Disease free survival (DFS), Extra nodal extension (ENE)
OPMDs, YAP1, p53, Ki-67, malignant transformation
Oral squamous cell carcinoma, Weighted lymph node ratio, Systemic inflammatory nutritional index, Perineural invasion, Monocyte/albumin ratio, Overall survival