Sol Rim Kim, Department of Rehabilitation Science Graduate School, Hanseo University, South Korea
Jang Hwan Kim, Department of Biomedical Engineering Welfare Technology, Hanseo University, South Korea
Kang Seong Lee, Department of Biomedical Engineering Welfare Technology, Hanseo University, South Korea
This study comparatively analyses the effects of two kinds of orthoses for knee osteoarthritis: the knee orthosis directly worn on the knee and operated by a three-point force and the ankle-foot orthosis stabilizing the frontally inclined tibia vertically. The aim of this study was to compare the effects of knee orthosis and ankle-foot orthosis in knee varus alignment. This was a quasi-experimental study assessing 13 adults. Each subject walked under three conditions: without the orthosis, with the knee orthosis, and with the ankle-foot orthosis. Our study used 3D motion capture system and force plate to evaluate kinematic and kinetic measurement. Data were analyzed using SPSS statistics 18. First, the external eversion moment of the ankle during the stance phase was significantly higher (p < 0.05) when using the ankle-foot orthosis than when not using it. This led to a significant reduction in the adduction moment (p < 0.05). Second, the ankle-foot orthosis and knee orthosis showed no differences in the effect of reducing knee varus angle and adduction moment in patients with knee osteoarthritis. Both the knee orthosis and the ankle-foot orthosis reduced the external knee adduction moment. These findings suggest that a newly applied ankle-foot orthosis, along with the typically used conventional knee orthosis, can increase the diversity of conservative treatments for knee osteoarthritis.
Osteoarthritis, Orthotic devices, Knee Joint, Kinematics, Ankle Joint
[1] Felson, David T. “Risk factors for osteoarthritis: understanding joint vulnerability.” Clinical Orthopaedics and Related Research 427 (2004): 16-21.
[2] Guccione, Andrew A, Felson, David T, Anderson Jennifer J, Anthony, John M, Zhang, Yuqing, Wilson, Peter W, Kelly-Hayes, Margaret, Wolf, Philip A, Kreger, Bernard E, Kannel, William B. “The effects of specific medical conditions on the functional limitations of elders in the Framingham Study.” American Journal of Public Health 84.3 (1994): 351-358.
[3] Felson, David T, Lawrence, Reva C, Dieppe, Paul A, Hirsch, Rosemarie, Helmick, Charles G, Jordan, Joanne M, Kington, Raynard S, Lane, Nancy E, Nevitt, Michael C, Zhang, Yuqing, Sowers, MaryFran, McAlindon, Timothy, Spector, Tim D, Poole, A Robin, Yanovski, Susan Z, Ateshian, Gerard, Sharma, Leena, Buckwalter, Joseph A, Brandt, Kenneth D, Fries, James F. “Osteoarthritis: new insights. Part 1: the disease and its risk factors.” Annals of Internal Medicine 133.8 (2000): 635-646.
[4] Brouwer RW, van Raaij TM, Jakma TTSC, Verhagen AP, Vehaar JA, Bierma-Zeinstra SM. Cochrane Database Syst Rev 1 (2005) 37-57.
[5] Arazpour, Mokhtar, Bani, Monireh Ahmadi, Hutchins, Stephen William, Jones, Richard Keith, Babadi, Monireh Habibi. “Frontal plane corrective ability of a new unloader orthosis for medial compartment of the knee.” Prosthetics and Orthotics International 37 (2013) 481-488.
[6] Jones, Richard K, Nester, Christopher J, Richards, Jim D, Kim, Winston Y, Johnson, David S, Jari, Sanjiv, Laxton, Philip, Tyson, Sarah F. “A comparison of the biomechanical effects of valgus knee braces and lateral wedged insoles in patients with knee osteoarthritis.” Gait & Posture 37.3 (2013): 368-372.
[7] Moyer, Rebecca F, Birmingham, Trevor B, Dombroski, Colin E, Walsh, Robert F, Leitch, Kristyn M, Jenkyn, Thomas R, Jiffin, J Robert. “Combined Effects of a Valgus Knee Brace and Lateral Wedge Foot Orthotic on the External Knee Adduction Moment in Patients With Varus Gonarthrosis,” Archives of Physical Medicine and Rehabilitation 94 (2013): 103-12.
[8] Fantini Pagani, Cynthia H, Willwacher, Steffen, Benker, Rita, Brüggermann, Gert-Peter. “Effect of an ankle-foot orthosis on knee joint mechanics: a novel conservative treatment for knee osteoarthritis.” Prosthet Orthot Int 38.6 (2014): 481-491.
[9] Navali, Amir Mohammad, Bahari, Leila Azhar Shekoufeh, Nazari, Behrouz. “A comparative assessment of alternatives to the full-leg radiograph for determining knee joint alignment.” Sports Medicine, Arthroscopy, Rehabilitation, Therapy & Technology 4.1 (2012): 40.
[10] S. R. Kim, J. H. Kim, K. S. Lee, Int. J. IT-based Public Health Management. 6 (2019) 35-42.
[11] Fantini Pagani, Cynthia H, Hinrichs, Maren, Brüggermann, Gert-Peter. “Kinetic and kinematic changes with the use of valgus knee brace and lateral wedge insoles in patients with medial knee osteoarthritis.” Journal of Orthopaedic Research 30.7 (2012): 1125-1132.
[12] Andriacchi, Thomas P. “Dynamics of knee malalignment.” The Orthopedic Clinics of North America 25.3 (1994): 395-403.
[13] Hunt, Michael A, Birmingham, Trevor B, Giffin, J Robert, Jenkyn, Thomas R. “Associations among knee adduction moment, frontal plane ground reaction force, and lever arm during walking in patients with knee osteoarthritis.” Journal of Biomechanics 39.12 (2006): 2213-2220.
[14] Jenkyn, Thomas R, Hunt, Michael A, Jones, Ian C, Giffin, J Robert, Birmingham, Trevor B. “Toe-out gait in patients with knee osteoarthritis partially transforms external knee adduction moment into flexion moment during early stance phase of gait: a tri-planar kinetic mechanism.” Journal of Biomechanics 41.2 (2008): 276-283.
APA:
Kim, S. R., Kim, J. H., & Lee, K. S. (2020). Effects of Knee Orthosis and Ankle-Foot Orthosis on the External Knee Adduction Moment in Knee Varus Alignment. International Journal of Advanced Science and Technology (IJAST), ISSN: 2005-4238(Print); 2207-6360 (Online), NADIA, 137, 1-10. doi: 10.33832/ijast.2020.137.01.
MLA:
Kim, Sol Rim, et al. “Effects of Knee Orthosis and Ankle-Foot Orthosis on the External Knee Adduction Moment in Knee Varus Alignment.” International Journal of Advanced Science and Technology, ISSN: 2005-4238(Print); 2207-6360 (Online), NADIA, vol. 137, 2020, pp. 1-10. IJAST, http://article.nadiapub.com/IJAST/Vol137/1.html.
IEEE:
[1] S. R. Kim, J. H. Kim, and K. S. Lee, "Effects of Knee Orthosis and Ankle-Foot Orthosis on the External Knee Adduction Moment in Knee Varus Alignment." International Journal of Advanced Science and Technology (IJAST), ISSN: 2005-4238(Print); 2207-6360 (Online), NADIA, vol. 137, pp. 1-10, Apr 2020.
IJAST aims to facilitate and support research related to advanced science and technology and the applications. Our Journal provides a chance for academic and industry professionals to discuss recent progress in the areas of advanced science and technology.
