Keen's point

Keen's point is one of the ventriculostomy sites used in neurosurgery, typically in pediatrics for ventriculoperitoneal shunt placement. Keen's point is located 3 cm superior and 3 cm posterior to the helix of the ear.[1][2] A burr hole or small twist drill hole is made in the skull at the Keen's point, to introduce a catheter into the lateral ventricle of brain for the purpose of obtaining or diverting cerebrospinal fluid. The procedure is done for both diagnostic and therapeutic purposes.

References

Jandial, Rahul; Aizenberg, Michele R.; Chen, Mike Y. (2016). 100 Case Reviews in Neurosurgery E-Book. Elsevier Health Sciences. p. 189. ISBN 9780323392235. Retrieved 11 November 2017.
Agarwal, Anil; Borley, Neil; McLatchie, Greg (2017). Oxford Handbook of Operative Surgery. Oxford University Press. p. 659. ISBN 9780191503030. Retrieved 11 November 2017.

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[1] Jandial, Rahul; Aizenberg, Michele R.; Chen, Mike Y. (2016). 100 Case Reviews in Neurosurgery E-Book. Elsevier Health Sciences. p. 189. ISBN 9780323392235. Retrieved 11 November 2017.

[2] Agarwal, Anil; Borley, Neil; McLatchie, Greg (2017). Oxford Handbook of Operative Surgery. Oxford University Press. p. 659. ISBN 9780191503030. Retrieved 11 November 2017.