To explore the advantages and clinical application of modified subcutaneous tunnel placement method in external drainage of lumbar cistern.

Ninety-two patients with no intracranial infection and indications of indwelling drainage tube outside the lumbar cistern, admitted to Department of Neurosurgery of Shijie Hospital of Dongguan City and Zhujiang Hospital of Southern Medical University from March 2015 to December 2016, were randomly divided into 2 groups. The cases of modified subcutaneous tunnel external drainage were used as observation group, and the control group was treated with external drainage of lumbar cistern, Observe and compare the two groups in intracranial infection, cerebrospinal fluid leakage, catheter displacement, unplanned extubation, not in accordance with the provisions of the time and other aspects of change.

The observation group of 46 cases using the modified subcutaneous tunnel catheter catheterization method in the cases of cerebrospinal fluid leakage in the point of puncture, catheter displacement and not according to the provisions of the incidence of dressing and other aspects of the time were significantly lower than control group, the difference was statistically significant (P<0.05). In the intracranial infection and unplanned extubation in the observation group the incidence rate was 2.2% (1/46), the control group the incidence rate was 8.7% (4/46), although no statistically significant difference (P>0.05), but in terms of data, there are still advantages in reducing the incidence of.

Compared with the conventional method of lumbar cistern catheterization, the modified subcutaneous tunnel external drainage method was superior to the conventional method in the management of 5 complications, so the improved method is feasible in clinical work.