Technical Notes on Endoscopic Transnasal Transsphenoidal Approach for Clival Chondrosarcoma

Figure 1

An original long navigation pointer (a) registered by the Universal Instrument Integration system ((b): VectorVision: BrainLAB Co., Ltd.). Long and slim instruments we used for this operation, highspeed drill ((c): Primado: Nakanishi Co., Ltd.) and ultrasonic aspirator ((d): SONOPET: M&M Co., Ltd.).

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