Over the past two decades, posterior lumbar interbody fusion procedures have become increasingly common worldwide [1,2]. Computed tomography (CT) has emerged as the preferred imaging modality for assessing implant positioning and detecting potential complications during patient follow-up [3,4]. However, metal implants can severely degrade CT image quality due to artifacts such as beam hardening and photon starvation. These artifacts hinder the visualization of bone–metal interfaces and adjacent …