Location of Parsons' knob
The knob was located at a mean ± standard deviation of 22 ± 3.1% of the anterior-to-posterior tibial plateau depth from the anterior edge of the tibia. The knob ran transversely from 46.9 ± 2.1% to 54 ± 3.6% of the medial-to-lateral tibial plateau width from the medial edge of the tibia