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Detecting Ankle Instability With an Instrumented Ankle Arthrometer: An Experimental Study.
J Orthop Res 2019; 37(9):2019-2026JO

Abstract

A new instrumented device was developed to quantify ankle joint stability during an anterior talar drawer test. The aim of the present study was to validate this device comparing bone kinematics with arthrometer measurement outcomes. An anterior talar drawer test was performed with 14 cadaver legs using a custom instrumented ankle arthrometer. Using clusters of bone-pin markers, the relative three-dimensional movement of calcaneus, talus, and fibula was simultaneously measured. Anterior drawer test was applied on the intact foot and after sequentially sectioning the anterior talofibular ligament, the calcaneofibular ligament, and the posterior talofibular ligament. Cutting the anterior talofibular ligament caused a significant increase in bone-pin measured anterior translations of calcaneus and talus as well as in the anterior translation of the arthrometer. Analysis of receiver operating characteristic curves indicates a fair to good ability to discriminate between the intact and the sectioned conditions with the arthrometer. Distal distraction, inversion, and internal rotation movements were observed when two and three ligaments were cut. Results revealed that the ankle arthrometer was sensitive to detect changes in bone-to-bone movements during an anterior talar drawer test, when the anterior talofibular ligament was sectioned. Presumably due to movements in additional planes of motion, the arthrometer was not able to differentiate between situations with one or more ligaments cut. In conclusion, the instrumented anterior talar drawer tester may augment current procedures in assessing ankle instability primarily caused by ruptures of the anterior talofibular ligament. © 2019 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 37:2019-2026, 2019.

Authors+Show Affiliations

Department of Sport and Sport Science, University of Freiburg, Freiburg, Germany.Department of Sport and Sport Science, University of Freiburg, Freiburg, Germany.Johannes Gutenberg University, Mainz, Germany.Johannes Gutenberg University, Mainz, Germany.Department of Sport and Sport Science, University of Freiburg, Freiburg, Germany.Department of Sport and Sport Science, University of Freiburg, Freiburg, Germany. European SportsCare Network (ESN), Wiesbaden, Germany. Lilium Klinik, Wiesbaden, Germany.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31062876

Citation

Gehring, Dominic, et al. "Detecting Ankle Instability With an Instrumented Ankle Arthrometer: an Experimental Study." Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society, vol. 37, no. 9, 2019, pp. 2019-2026.
Gehring D, Li L, Bonsignore G, et al. Detecting Ankle Instability With an Instrumented Ankle Arthrometer: An Experimental Study. J Orthop Res. 2019;37(9):2019-2026.
Gehring, D., Li, L., Bonsignore, G., Dorn-Lange, N., Gollhofer, A., & Lohrer, H. (2019). Detecting Ankle Instability With an Instrumented Ankle Arthrometer: An Experimental Study. Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society, 37(9), pp. 2019-2026. doi:10.1002/jor.24341.
Gehring D, et al. Detecting Ankle Instability With an Instrumented Ankle Arthrometer: an Experimental Study. J Orthop Res. 2019;37(9):2019-2026. PubMed PMID: 31062876.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Detecting Ankle Instability With an Instrumented Ankle Arthrometer: An Experimental Study. AU - Gehring,Dominic, AU - Li,Lu, AU - Bonsignore,Giuseppe, AU - Dorn-Lange,Nadja, AU - Gollhofer,Albert, AU - Lohrer,Heinz, Y1 - 2019/05/21/ PY - 2018/12/14/received PY - 2019/04/16/accepted PY - 2019/5/8/pubmed PY - 2019/5/8/medline PY - 2019/5/8/entrez KW - anterior talar drawer KW - anterior talofibular ligament KW - kinematics KW - validation SP - 2019 EP - 2026 JF - Journal of orthopaedic research : official publication of the Orthopaedic Research Society JO - J. Orthop. Res. VL - 37 IS - 9 N2 - A new instrumented device was developed to quantify ankle joint stability during an anterior talar drawer test. The aim of the present study was to validate this device comparing bone kinematics with arthrometer measurement outcomes. An anterior talar drawer test was performed with 14 cadaver legs using a custom instrumented ankle arthrometer. Using clusters of bone-pin markers, the relative three-dimensional movement of calcaneus, talus, and fibula was simultaneously measured. Anterior drawer test was applied on the intact foot and after sequentially sectioning the anterior talofibular ligament, the calcaneofibular ligament, and the posterior talofibular ligament. Cutting the anterior talofibular ligament caused a significant increase in bone-pin measured anterior translations of calcaneus and talus as well as in the anterior translation of the arthrometer. Analysis of receiver operating characteristic curves indicates a fair to good ability to discriminate between the intact and the sectioned conditions with the arthrometer. Distal distraction, inversion, and internal rotation movements were observed when two and three ligaments were cut. Results revealed that the ankle arthrometer was sensitive to detect changes in bone-to-bone movements during an anterior talar drawer test, when the anterior talofibular ligament was sectioned. Presumably due to movements in additional planes of motion, the arthrometer was not able to differentiate between situations with one or more ligaments cut. In conclusion, the instrumented anterior talar drawer tester may augment current procedures in assessing ankle instability primarily caused by ruptures of the anterior talofibular ligament. © 2019 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 37:2019-2026, 2019. SN - 1554-527X UR - https://www.unboundmedicine.com/medline/citation/31062876/Detecting_ankle_instability_with_an_instrumented_ankle_arthrometer_-_an_experimental_study L2 - https://doi.org/10.1002/jor.24341 DB - PRIME DP - Unbound Medicine ER -