Title: Applied anatomy of lateral approach technique for posterior cranial fossa
Abstract: Objective: To provide anatomical basis for posterior cranial fossa operation so as to avoid damaging the vessels and nerves. Methods: Sixteen normal adult skull specimens were dissected and measured. Results: The gaps from mastoidal to the tip of styloid process and lateral border of atlas transverse process, and the gap from the apical of styloid process to lateral border of atlas transverse process were 30.67 ±6.38 mm, 24.15±4.46 mm and 15.20±3.50 mm respectively. The gaps from mastoidal to facial nerve, to lateral border of jugular foramen, to outer entrance of carotid canal and to middle point in lateral border of occipital condyle were 10.11±3.02 mm, 22.93±3.59 mm, 30.40±3.37 mm and 31.43±3.11 mm respectively. The gaps from mastoidal to the exits of Ⅸ,Ⅹ,Ⅺ and Ⅻ cranial neves from the skull were 26.13±5.49 mm, 24.27±4.11 mm, 21.17±4.34 mm and 24.34±4.64 mm respectively. We also measured the width and thickness of Ⅸ,Ⅹ,Ⅺ and Ⅻ cranial nerves at the exits from the skull. Conclusions: During the lateral approach operation for posterior cranial fossa, importance must be given to the gaps from mastoid process to styloid process, to lateral border of atlas transverse process and the gap from styloid process to lateral border of atlas transverse process and the gap from styloid process to lateral border of C 1 transverse process. At the same time, the situation and the gaps from mastioid process to internal jugular vein, to internal carotid artery, and to Ⅸ,Ⅹ,Ⅺ and Ⅻ cranial nerves must be effectively protected.
Publication Year: 2003
Publication Date: 2003-01-01
Language: en
Type: article
Access and Citation
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot