Elaheh Ziaei Ziabari1,2, Mohammad Razi3, Mohammad Haghpanahi4, Bart Lubberts5, Bijan Valiollahi6, Faezeh Khazaee7, Hossein Taghadosi7, Christopher W DiGiovanni5,8,9. 1. Foot & Ankle Research and Innovation Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Boston, MA, 02114, USA. elaheh.ziayi@gmail.com. 2. Department of Orthopedic Surgery, Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran. elaheh.ziayi@gmail.com. 3. Department of Orthopedic Surgery, Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran. 4. School of Mechanical Engineering, Iran University of Science and Technology, Narmak, 16846-13114, Tehran, Iran. 5. Foot & Ankle Research and Innovation Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Boston, MA, 02114, USA. 6. Department of Orthopedic Surgery, Arman Hospital, Tehran, Iran. 7. Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran. 8. Department of Orthopaedic Surgery, Foot & Ankle Service, Massachusetts General Hospital, Boston, MA, USA. 9. Harvard Medical School, Newton-Wellesley Hospital, Massachusetts General Hospital, Boston, MA, USA.
Abstract
PURPOSE: We evaluated and compared kinematics of bilateral ankle, knee, and hip joints in patients with chronic unilateral ankle instability (CAI) with healthy controls. METHODS: Fifteen individuals diagnosed with CAI and a control group of 16 individuals were matched. Different peaks within the gait cycle (at different intervals) for the dorsiplantar, inversion/eversion, and abduction/adduction axis were compared between injured and uninjured sides of patients with CAI with a control group. RESULTS: Comparison of the uninjured ankle in CAI with the control group showed higher dorsiflexion in one peak of the stance phase (p = 0.003), higher inversion in one peak of the stance phase (p = 0.022), and the swing phase (p = 0.004). The hip joint of the uninjured side showed higher extension in one peak of the stance phase (p < 0.001), and two peaks of the swing phase (p < 0.05). Furthermore, it showed higher adduction in one peak of the foot flat to mid-stance phase (p = 0.001), higher abduction in one peak of the late swing phase (p = 0.047), and the swing phase (p = 0.032). The knee joint of the uninjured side showed higher flexion in all measured peaks of the gait cycle (p < 0.05) (except for one peak in the late swing phase) compared to the control group. CONCLUSION: Chronic ankle instability results in altered biomechanics of the ipsilateral knee as well as the contralateral ankle, knee, and hip joints. The alterations caused by CAI may predispose patients to overuse and/or acute injuries of other joints of lower extremities during routine and sporting activity.
PURPOSE: We evaluated and compared kinematics of bilateral ankle, knee, and hip joints in patients with chronic unilateral ankle instability (CAI) with healthy controls. METHODS: Fifteen individuals diagnosed with CAI and a control group of 16 individuals were matched. Different peaks within the gait cycle (at different intervals) for the dorsiplantar, inversion/eversion, and abduction/adduction axis were compared between injured and uninjured sides of patients with CAI with a control group. RESULTS: Comparison of the uninjured ankle in CAI with the control group showed higher dorsiflexion in one peak of the stance phase (p = 0.003), higher inversion in one peak of the stance phase (p = 0.022), and the swing phase (p = 0.004). The hip joint of the uninjured side showed higher extension in one peak of the stance phase (p < 0.001), and two peaks of the swing phase (p < 0.05). Furthermore, it showed higher adduction in one peak of the foot flat to mid-stance phase (p = 0.001), higher abduction in one peak of the late swing phase (p = 0.047), and the swing phase (p = 0.032). The knee joint of the uninjured side showed higher flexion in all measured peaks of the gait cycle (p < 0.05) (except for one peak in the late swing phase) compared to the control group. CONCLUSION: Chronic ankle instability results in altered biomechanics of the ipsilateral knee as well as the contralateral ankle, knee, and hip joints. The alterations caused by CAI may predispose patients to overuse and/or acute injuries of other joints of lower extremities during routine and sporting activity.
Authors: M H Meine; M L Zanotelli; J Neumann; G Kiss; T de Jesus Grezzana; I Leipnitz; E S Schlindwein; A Fleck; A L Gleisner; A de Mello Brandão; C A Marroni; G P C Cantisani Journal: Transplant Proc Date: 2006 Jul-Aug Impact factor: 1.066
Authors: Phillip A Gribble; Eamonn Delahunt; Christopher M Bleakley; Brian Caulfield; Carrie L Docherty; Daniel Tik-Pui Fong; François Fourchet; Jay Hertel; Claire E Hiller; Thomas W Kaminski; Patrick O McKeon; Kathryn M Refshauge; Philip van der Wees; William Vicenzino; Erik A Wikstrom Journal: J Athl Train Date: 2013-12-30 Impact factor: 2.860