This clinical trial aims to find out whether the puncture site used during minimally invasive surgery with twist-drill puncture and closed-system drainage affects the treatment of chronic subdural hematoma (cSDH).
The target population is adults with a unilateral chronic subdural hematoma who need surgical drainage based on their symptoms and imaging findings (CT/MRI).
The main questions this study is designed to answer are:
* Does the puncture site affect the risk of same-side cSDH recurrence requiring reoperation within 3 months
* Does the puncture site affect recovery and key clinical outcomes after surgery (including functional status and postoperative recovery measures)
There are two groups, researchers will compare:
* Group A: patients receiving puncture at the frontal region vs.
* Group B: patients receiving puncture near the parietal eminence to determine whether one puncture site leads to better outcomes than the other.
Participants will:
* undergo a surgical procedure where, based on random assignment, the puncture site is either frontal or near the parietal eminence;
* receive closed-system drainage after a twist-drill puncture;
* complete follow-up assessments at discharge, 30 days, 3 months after surgery, which will include symptom review and imaging (CT) evaluations to check hematoma changes and recurrence;
* have safety monitoring throughout the study period to record any complications or adverse events.