European Archives of Oto-Rhino-Laryngology

, Volume 273, Issue 5, pp 1115–1121 | Cite as

Decision making in dissection range of temporal bone: refinements to enlarged translabyrinthine approach

  • Zheng Jie Zhu
  • Wei Dong Zhu
  • Hong Sai Chen
  • Zhao Yan WangEmail author
  • Hao WuEmail author


The aim of the study was to describe the refinements to the classic enlarged translabyrinthine approach (ETLA) by modifying the bony dissection range of temporal bone and to analyze the main outcomes achieved in a series of vestibular schwannoma (VS) cases submitted to microsurgery by ETLA. This was a retrospective study of 382 patients who underwent VS surgical removal via ETLA between January 2001 and December 2012. Among those cases, 332 were via classic ETLA, while 28 cases were via ETLA with blind sac technique and middle ear eradication and 22 via transotic approach. Total tumor removal was achieved in 368 cases, whereas near total removal in 11 patients and subtotal in 3 patients. In cases of large VS (>3 cm) via classic ETLA, good short-term and long-term facial nerve function (HB I–II) was gained in 27.8 % (32/115) and 42.6 % (49/115) cases, respectively, meanwhile in VS operated via blind sac technique, good short-term (p = 0.048) and long-term (p = 0.044) facial nerve function was reached in 44.0 % (22/50) and 60.0 % (30/50) cases, respectively. Postoperative facial nerve function was proved to be better in modified ETLA group. CSF leakage occurred in 16 (4.2 %) patients via classic ETLA. In 115 cases of large VS (>3 cm), postoperative CSF leakage occurred in 10 (8.7 %) patients. Whereas in 50 cases via blind sac technique, none developed CSF leakage (p = 0.03). The incidence of CSF leakage was lower in modified ETLA group. Our refinements to classic ETLA by changing the temporal bone resection range provide a wide surgical field, well prevention of CSF leakage and preservation of facial nerve function in large VS.


Acoustic neuroma Vestibular schwannoma Enlarged translabyrinthine approach Facial nerve function Surgical complications 



This work was supported by the National Natural Science Foundation of China (NO. 81371086) to WANG Zhao yan.

Conflict of interest

No author has financial or other contractual agreements that might cause conflicts of interests.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  1. 1.Department of Otolaryngology Head and Neck Surgery, School of Medicine, Xinhua HospitalShanghai Jiaotong UniversityShanghaiChina
  2. 2.School of Medicine, Ear InstituteShanghai Jiaotong UniversityShanghaiChina

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