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. Author manuscript; available in PMC: 2020 Feb 4.
Published in final edited form as: Am J Sports Med. 2018 Jul 17;46(10):2486–2491. doi: 10.1177/0363546518786246

Figure 1:

Figure 1:

Demonstration of the anteroposterior (AP) and 45º Dunn radiographic views as well as the primary radiographic measurements made. Head-neck offset ratio (HNOR) is calculated as the ratio of head-neck offset to femoral head diameter.