Ryan J Leigh1, Sean T Osis2, Reed Ferber3. 1. Faculty of Kinesiology, Running Injury Clinic, University of Calgary, 2500 University Dr. NW, Calgary, AB T2N 1N4, Canada. Electronic address: rjleigh@ucalgary.ca. 2. Faculty of Kinesiology, Running Injury Clinic, University of Calgary, 2500 University Dr. NW, Calgary, AB T2N 1N4, Canada. Electronic address: stosis@ucalgary.ca. 3. Faculty of Kinesiology, Running Injury Clinic, University of Calgary, 2500 University Dr. NW, Calgary, AB T2N 1N4, Canada; Faculty of Nursing, University of Calgary, 2500 University Dr. NW, Calgary, AB T2N 1N4, Canada. Electronic address: rferber@ucalgary.ca.
Abstract
BACKGROUND: Mild-to-moderate hip osteoarthritis is often managed clinically in a non-surgical manner. Effective non-surgical management of this population requires characterizing the specific impairments within this group. To date, a complete description of all lower extremity kinematics in mild-to-moderate hip osteoarthritis patients has not been presented. The aim of the present study is to describe the lower extremity gait kinematics in mild-to-moderate hip osteoarthritis patients and explore the relationship between kinematics and pain. METHODS: 22 subjects with mild-to-moderate radiographic hip osteoarthritis (Kellgren-Lawrence grade 2-3) and 22 healthy age and BMI matched control subjects participated. Kinematic treadmill walking data were collected across all lower extremity joints. A two-way repeated measures analysis of variance estimated mean differences in gait kinematics between groups. Correlations between gait kinematics and pain were assessed using a Spearman correlation coefficient. FINDINGS: Hip osteoarthritis subjects hiked their unsupported hemi-pelvis 1.40° (P<0.001) more than controls and tilted their pelvis 4.65° more anteriorly (P=0.01). Osteoarthritis subjects walked with 4.30° more peak hip abduction (P<0.001), 8.57° less peak hip extension (P<0.001), and 10.54° more peak hip external rotation (P<0.001). Kinematics were related to pain in the ankle frontal plane only (r=-0.43, P<0.05). INTERPRETATION: Individuals with mild-to-moderate hip osteoarthritis demonstrate altered gait biomechanics not related to pain. These altered biomechanics may represent effective therapeutic targets by clinicians working with this population. Understanding the underlying patho-anatomic changes that lead to these biomechanical changes requires further investigation.
BACKGROUND: Mild-to-moderate hip osteoarthritis is often managed clinically in a non-surgical manner. Effective non-surgical management of this population requires characterizing the specific impairments within this group. To date, a complete description of all lower extremity kinematics in mild-to-moderate hip osteoarthritispatients has not been presented. The aim of the present study is to describe the lower extremity gait kinematics in mild-to-moderate hip osteoarthritispatients and explore the relationship between kinematics and pain. METHODS: 22 subjects with mild-to-moderate radiographic hip osteoarthritis (Kellgren-Lawrence grade 2-3) and 22 healthy age and BMI matched control subjects participated. Kinematic treadmill walking data were collected across all lower extremity joints. A two-way repeated measures analysis of variance estimated mean differences in gait kinematics between groups. Correlations between gait kinematics and pain were assessed using a Spearman correlation coefficient. FINDINGS:Hip osteoarthritis subjects hiked their unsupported hemi-pelvis 1.40° (P<0.001) more than controls and tilted their pelvis 4.65° more anteriorly (P=0.01). Osteoarthritis subjects walked with 4.30° more peak hip abduction (P<0.001), 8.57° less peak hip extension (P<0.001), and 10.54° more peak hip external rotation (P<0.001). Kinematics were related to pain in the ankle frontal plane only (r=-0.43, P<0.05). INTERPRETATION: Individuals with mild-to-moderate hip osteoarthritis demonstrate altered gait biomechanics not related to pain. These altered biomechanics may represent effective therapeutic targets by clinicians working with this population. Understanding the underlying patho-anatomic changes that lead to these biomechanical changes requires further investigation.
Authors: G N Bisciotti; F Di Marzo; A Auci; F Parra; G Cassaghi; A Corsini; M Petrera; P Volpi; Z Vuckovic; M Panascì; R Zini Journal: J Orthop Traumatol Date: 2017-09-18
Authors: Ruud A Leijendekkers; Marco A Marra; Sjoerd Kolk; Geert van Bon; B Wim Schreurs; Vivian Weerdesteyn; Nico Verdonschot Journal: PLoS One Date: 2018-02-23 Impact factor: 3.240