X-ray of the ankle

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Author: Mikael Häggström [notes 1]

Projectional radiography ("X-ray")

Normal anatomy

  • Ankle - frontal

  • With potential accessory bones

  • 15 degrees internal rotation

  • Lateral (this one a bit suboptimal by not seeing straight through the ankle joint)

  • Lateral oblique (to visualize the posterior border of the tibia)

The normal distances between the bones in the ankle are as follows:[1]

  • Talus - medial malleolus : 1.70 ± 0.13 mm
  • Talus - tibial plafond: 2.04 ± 0.29 mm
  • Talus - lateral malleolus: 2.13 ± 0.20 mm

Decreased distances indicate osteoarthritis.

References

  1. ↑ Imai, Kan; Ikoma, Kazuya; Kido, Masamitsu; Maki, Masahiro; Fujiwara, Hiroyoshi; Arai, Yuji; Oda, Ryo; Tokunaga, Daisaku; et al. (2015). "Joint space width of the tibiotalar joint in the healthy foot ". Journal of Foot and Ankle Research 8 (1). doi:10.1186/s13047-015-0086-5. ISSN 1757-1146. 


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