Endoscopic Transforaminal Lumbar Interbody Fusion (Endo-TLIF) for L4–L5 Spondylolisthesis A 55-year-old female patient presented with a history of chronic low back pain associated with radiating pain to the lower limb for nearly two years. Over the preceding 24 hours, her symptoms had acutely worsened, resulting in significant difficulty in walki