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In vivo kinematics of the tibiotalar joint after lateral ankle instability.

Publication ,  Journal Article
Caputo, AM; Lee, JY; Spritzer, CE; Easley, ME; DeOrio, JK; Nunley, JA; DeFrate, LE
Published in: Am J Sports Med
November 2009

BACKGROUND: Previous studies have suggested that injury to the anterior talofibular ligament (ATFL) may be linked to altered kinematics and the development of osteoarthritis of the ankle joint. However, the effects of ATFL injury on the in vivo kinematics of the ankle joint are unclear. HYPOTHESIS: Based on the orientation of the ATFL fibers, ATFL deficiency leads to increased anterior translation and increased internal rotation of the talus relative to the tibia. STUDY DESIGN: Descriptive laboratory study. METHODS: The ankles of 9 patients with unilateral ATFL injuries were compared as they stepped onto a level surface. Kinematic measurements were made as a function of increasing load. With use of magnetic resonance imaging and orthogonal fluoroscopy, the in vivo kinematics of the tibiotalar joint were measured in the ATFL-deficient and intact ankles of the same individuals. RESULTS: A statistically significant increase in internal rotation, anterior translation, and superior translation of the talus was measured in ATFL-deficient ankles, as compared with the intact contralateral controls. For example, at 100% body weight, ATFL-deficient ankles demonstrated an increase of 0.9 +/- 0.5 mm in anterior translation (P = .008), an increase of 5.7 degrees +/- 3.6 degrees in internal rotation (P = .008), and a slight increase of 0.2 +/- 0.2 mm in the superior translation (P = .02) relative to the intact contralateral ankles. CONCLUSION: Deficiency of the ATFL increases anterior translation, internal rotation, and superior translation of the talus. CLINICAL RELEVANCE: Altered kinematics may contribute to the degenerative changes observed with chronic lateral ankle instability. These findings might help to explain the degenerative changes frequently observed on the medial talus in patients with chronic ATFL insufficiency and so provide a baseline for improving ankle ligament reconstructions aimed at restoring normal joint motion.

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Published In

Am J Sports Med

DOI

EISSN

1552-3365

Publication Date

November 2009

Volume

37

Issue

11

Start / End Page

2241 / 2248

Location

United States

Related Subject Headings

  • Young Adult
  • Talus
  • Rotation
  • Orthopedics
  • Middle Aged
  • Male
  • Magnetic Resonance Imaging
  • Ligaments, Articular
  • Joint Instability
  • Humans
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Caputo, A. M., Lee, J. Y., Spritzer, C. E., Easley, M. E., DeOrio, J. K., Nunley, J. A., & DeFrate, L. E. (2009). In vivo kinematics of the tibiotalar joint after lateral ankle instability. Am J Sports Med, 37(11), 2241–2248. https://doi.org/10.1177/0363546509337578
Caputo, Adam M., Jun Y. Lee, Chuck E. Spritzer, Mark E. Easley, James K. DeOrio, James A. Nunley, and Louis E. DeFrate. “In vivo kinematics of the tibiotalar joint after lateral ankle instability.Am J Sports Med 37, no. 11 (November 2009): 2241–48. https://doi.org/10.1177/0363546509337578.
Caputo AM, Lee JY, Spritzer CE, Easley ME, DeOrio JK, Nunley JA, et al. In vivo kinematics of the tibiotalar joint after lateral ankle instability. Am J Sports Med. 2009 Nov;37(11):2241–8.
Caputo, Adam M., et al. “In vivo kinematics of the tibiotalar joint after lateral ankle instability.Am J Sports Med, vol. 37, no. 11, Nov. 2009, pp. 2241–48. Pubmed, doi:10.1177/0363546509337578.
Caputo AM, Lee JY, Spritzer CE, Easley ME, DeOrio JK, Nunley JA, DeFrate LE. In vivo kinematics of the tibiotalar joint after lateral ankle instability. Am J Sports Med. 2009 Nov;37(11):2241–2248.
Journal cover image

Published In

Am J Sports Med

DOI

EISSN

1552-3365

Publication Date

November 2009

Volume

37

Issue

11

Start / End Page

2241 / 2248

Location

United States

Related Subject Headings

  • Young Adult
  • Talus
  • Rotation
  • Orthopedics
  • Middle Aged
  • Male
  • Magnetic Resonance Imaging
  • Ligaments, Articular
  • Joint Instability
  • Humans