Keen's point

Last edit by Alaric Steinmetz on

Synonyms: Keens Point

Keen's point is a superficial anatomical landmark used for ventriculostomy.

History

Keen's point was first described in the literature in 18901.

Definition

Keen's point is located 2.5–3 cm posterior and 2.5–3 cm superior to the auricle. The intended catheter for ventriculostomy is then inserted 4–5 cm perpendicular to the cortex and should lie in the trigonal portion of the lateral ventricle2.

Figure

Schematic illustration of Keen's point
Schematic illustration of Keen's point for ventricular puncture. Figure adapted from Morone PJ et al. (2020).

References

    1. Keen W. SURGERY OF THE LATERAL VENTRICLES OF THE BRAIN. The Lancet. September 1890:553-555. ↩ ↩

    2. Morone, Peter J., et al. Craniometrics and ventricular access a review of Kochers, Kaufmans, Paines, Menovksys, Tubbs, Keens, Fraziers, Dandys, and Sanchezs points. Operative Neurosurgery 18.5 (2020) 461-469. ↩ ↩

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