Related Experiment Video
Updated: Aug 6, 2026
09:53
Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery
Published on: July 5, 2021
The Pretemporal Transcavernous Approach to the Posterior Clinoid Process Chondrosarcoma with Intraoperative
Arun K Srivastava1, Ved P Maurya1, Kuntal K Das1
1Department of Neurosurgerys, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
Neurology India
|July 21, 2026
Summary
The pretemporal transcavernous approach (PTTCA) offers a safe surgical option for posterior clinoid process lesions. This technique, combined with neuromonitoring, aids in complex tumor removal with good patient outcomes.
Area of Science:
- Neurosurgery
- Skull Base Surgery
Background:
- The pretemporal transcavernous approach (PTTCA) is a complex surgical technique.
- Four distinct levels of PTTCA exist, varying by cavernous sinus exposure.
- Dural layer unfolding is a critical step in the PTTCA.
Purpose of the Study:
- To demonstrate the surgical technique of PTTCA.
- To showcase the integration of multimodal intraoperative neuromonitoring.
- To illustrate the excision of a posterior clinoid chondrosarcoma using PTTCA.
Main Methods:
- Right frontotemporal craniotomy and PTTCA were performed.
- Tailored antegrade dural unfolding was utilized.
- Multimodal intraoperative neuromonitoring guided the procedure.
Main Results:
- The PTTCA successfully facilitated the excision of posterior clinoid chondrosarcoma.
- Surgical safety was enhanced through specific maneuvers and neuromonitoring.
- The patient experienced an uneventful recovery and maintained functional independence.
Conclusions:
- The pretemporal transcavernous approach (PTTCA) is a valuable technique for treating lesions of the posterior clinoid process.
- The integration of neuromonitoring improves surgical safety in PTTCA procedures.
- PTTCA enables effective management of complex skull base tumors.
