Cervical spondylotic myelopathy (CSM) is one of the more severe subtypes of cervical spondylosis, accounting for 10 % to 15 % of all cervical spondylosis cases [1]. While early-stage symptoms may be mild, progressive neurological dysfunction and disability often occur as the disease advances, severely impacting patients’ quality of life [2,3]. Notably, postoperative recovery in CSM patients follows a non-linear trajectory that is not consistently correlated with time, further complicating long-t…