Difference between revisions of "X-ray of ankle osteoarthritis"

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==Evaluation==
 
==Evaluation==
The Kellgren-Lawrence scale has been recommended:<ref>{{cite journal|url=http://www.bjjprocs.boneandjoint.org.uk/content/94-B/SUPP_XXXVII/64|title=How to assess ankle osteoarthritis: comparison of the Kellgren and Lawrence scale with functional outcome and digital image analysis|author=Nicolas Holzer, Davide Salvo, Anne Karien Marijnissen, Aminudin Che Ahmad, Emanuele Sera, Pierre Hoffmeyer, Anne Lübbeke Wolff, Mathieu Assal|journal=Orthopaedic Proceedings|date=2017-09-14|volume=94-B}}</ref>
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The Kellgren-Lawrence scale has been recommended,<ref>{{cite journal|url=http://www.bjjprocs.boneandjoint.org.uk/content/94-B/SUPP_XXXVII/64|title=How to assess ankle osteoarthritis: comparison of the Kellgren and Lawrence scale with functional outcome and digital image analysis|author=Nicolas Holzer, Davide Salvo, Anne Karien Marijnissen, Aminudin Che Ahmad, Emanuele Sera, Pierre Hoffmeyer, Anne Lübbeke Wolff, Mathieu Assal|journal=Orthopaedic Proceedings|date=2017-09-14|volume=94-B}}</ref> but in practice it is generally acceptable to give the degree as mild/moderate or severe.
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===Varus or valgus===
 
===Varus or valgus===
 
[[File:X-ray of frontal tibiotalar surface angle (TTS).jpg|right|100px]]
 
[[File:X-ray of frontal tibiotalar surface angle (TTS).jpg|right|100px]]
Varus or valgus deformity can be measured with the frontal tibiotalar surface angle (TTS), formed by the mid-longitudinal tibial axis (such as through a line bisecting the tibia at 8 and 13 cm above the tibial plafond) and the talar surface.<ref name=Nosewicz2012>{{cite journal|last1=Nosewicz|first1=Tomasz L.|last2=Knupp|first2=Markus|last3=Bolliger|first3=Lilianna|last4=Hintermann|first4=Beat|title=The reliability and validity of radiographic measurements for determining the three-dimensional position of the talus in varus and valgus osteoarthritic ankles|journal=Skeletal Radiology|volume=41|issue=12|year=2012|pages=1567–1573|issn=0364-2348|doi=10.1007/s00256-012-1421-6}}</ref>
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Varus or valgus deformity, if suspected, can be measured with the frontal tibiotalar surface angle (TTS), formed by the mid-longitudinal tibial axis (such as through a line bisecting the tibia at 8 and 13 cm above the tibial plafond) and the talar surface.<ref name=Nosewicz2012>{{cite journal|last1=Nosewicz|first1=Tomasz L.|last2=Knupp|first2=Markus|last3=Bolliger|first3=Lilianna|last4=Hintermann|first4=Beat|title=The reliability and validity of radiographic measurements for determining the three-dimensional position of the talus in varus and valgus osteoarthritic ankles|journal=Skeletal Radiology|volume=41|issue=12|year=2012|pages=1567–1573|issn=0364-2348|doi=10.1007/s00256-012-1421-6}}</ref>
  
 
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Revision as of 18:06, 29 January 2019

Author: Mikael Häggström [notes 1]

X-ray of ankle osteoarthritis.jpg

Planning

Weight-bearing radiography

Evaluation

The Kellgren-Lawrence scale has been recommended,[1] but in practice it is generally acceptable to give the degree as mild/moderate or severe.

Kellgren-Lawrence system
Grade Description
0 No radiographic features of osteoarthritis
1 Osteophyte formation and possible joint space narrowing. The normal distances between the bones in the ankle are as follows:[2]
  • Talus - medial malleolus : 1.70 ± 0.13 mm
  • Talus - tibial plafond: 2.04 ± 0.29 mm
  • Talus - lateral malleolus: 2.13 ± 0.20 mm
2 Definite osteophyte formation with possible joint space narrowing
3 Multiple osteophytes, definite joint space narrowing, sclerosis and possible bony deformity
4 Large osteophytes, marked joint space narrowing, severe sclerosis and definite bony deformity

Varus or valgus

X-ray of frontal tibiotalar surface angle (TTS).jpg

Varus or valgus deformity, if suspected, can be measured with the frontal tibiotalar surface angle (TTS), formed by the mid-longitudinal tibial axis (such as through a line bisecting the tibia at 8 and 13 cm above the tibial plafond) and the talar surface.[3]

Notes

  1. For a full list of contributors, see article history. Creators of images are attributed at the image description pages, seen by clicking on the images. See Radlines:Authorship for details.

References

  1. Nicolas Holzer, Davide Salvo, Anne Karien Marijnissen, Aminudin Che Ahmad, Emanuele Sera, Pierre Hoffmeyer, Anne Lübbeke Wolff, Mathieu Assal (2017-09-14). "How to assess ankle osteoarthritis: comparison of the Kellgren and Lawrence scale with functional outcome and digital image analysis ". Orthopaedic Proceedings 94-B. Archived from the original. . 
  2. 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. 
  3. Nosewicz, Tomasz L.; Knupp, Markus; Bolliger, Lilianna; Hintermann, Beat (2012). "The reliability and validity of radiographic measurements for determining the three-dimensional position of the talus in varus and valgus osteoarthritic ankles ". Skeletal Radiology 41 (12): 1567–1573. doi:10.1007/s00256-012-1421-6. ISSN 0364-2348.