• World Neurosurg · May 2024

    Comparative Study

    Syringo-subarachnoid shunt with direct tube versus T-tube via the dorsal root entry zone approach for eccentric syringomyelia.

    • Da-Wei Dai, Guang-Ming Wang, Teng-Fei Zhang, Chun-Hui Wang, Abdylla Gulberdiyev, Yong-Ming Qiu, and Shuo Han.
    • Department of Neurosurgery, Renji Hospital, Shanghai Jiaotong University, Shanghai, China; Department of Neurosurgery, Changzheng Hospital, Naval Medical University, Shanghai, China.
    • World Neurosurg. 2024 May 1; 185: e415e420e415-e420.

    ObjectiveThis study compared the clinical therapeutic efficacy of syringo-subarachnoid shunt placement with direct tube and T-tube via the dorsal root entry zone (DREZ) approach for treatment of eccentric syringomyelia.MethodsA retrospective study was performed of 41 patients with idiopathic or secondary eccentric syringomyelia from November 2011 to December 2022. Syringo-subarachnoid shunt placement with direct tube or T-tube via the DREZ approach was performed. The modified Japanese Orthopaedic Association low back pain scale was used to investigate the severity of clinical symptoms. Magnetic resonance imaging was used to investigate therapeutic efficacy（reduction of the cavity volume by >10% was considered an improvement and 50% was considered a significant improvement).ResultsIncision length of the spinal cortex in the direct tube group was shorter than in the T-tube group (3.10 ± 0.28 cm vs. 5.03 ± 0.19 cm), with a significant difference between the 2 groups (t = -52.56, P < 0.001). Modified Japanese Orthopaedic Association score 3 months postoperatively was significantly better than the preoperative score in both the direct tube group（t = 40.954, P < 0.001） and the T-tube group（t = 24.769, P < 0.001）. Statistical comparison revealed there was no difference in imaging improvement between the direct tube group and T-tube group 3 months (χ2 = 0.20, P = 0.655) and 12 months (χ2 = 0.21, P = 0.647) postoperatively.ConclusionsSyringo-subarachnoid shunt placement with direct tube via the DREZ approach for treatment of eccentric syringomyelia is safer than with T-tube via the DREZ approach due to smaller incision length and less of a space-occupying effect with same therapeutic efficacy.Copyright © 2024 Elsevier Inc. All rights reserved.

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