scholarly journals Timing of Frontal Plane Trunk Lean, Not Magnitude, Mediates Frontal Plane Knee Joint Loading in Patients with Moderate Medial Knee Osteoarthritis

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Freyja Hálfdanardóttir ◽  
Dan K. Ramsey ◽  
Kristín Briem
Keyword(s):  
Knee Joint ◽  
Knee Osteoarthritis ◽  
Frontal Plane ◽  
Joint Loading ◽  
Medial Knee ◽  
Medial Knee Osteoarthritis ◽  
Hip Abductor ◽  
Knee Joint Loading ◽  
Abductor Strength ◽  
Rate Of Loading

The purpose of this study was to examine the influence of trunk lean and contralateral hip abductor strength on the peak knee adduction moment (KAM) and rate of loading in persons with moderate medial knee osteoarthritis. Thirty-one males (17 with osteoarthritis, 14 controls) underwent 3-dimensional motion analysis, strength testing of hip abductors, and knee range of motion (ROM) measures, as well as completing the knee osteoarthritis outcome score (KOOS). No differences were found between groups or limbs for gait cycle duration, but the osteoarthritis group had longer double-limb support during weight acceptance (p<0.001) and delayed frontal plane trunk motion towards the stance limb (p<0.01). This was reflected by a lower rate of loading for the osteoarthritis group compared to controls (p<0.001), whereas no differences were found for peak KAM. Trunk angle, contralateral hip abductor strength, and BMI explained the rate of loading at the involved knee (p<0.001), an association not found for the contralateral knee or control knees. Prolonged trunk lean over the stance limb may help lower peak KAM values. Rate of frontal plane knee joint loading may partly be mediated by the contralateral limb’s abductor strength, accentuating the importance of bilateral lower limb strength for persons with knee osteoarthritis.

scholarly journals Knee joint loading differs in individuals with mild compared with moderate medial knee osteoarthritis

2006 ◽  
Vol 54 (12) ◽  
pp. 3842-3849 ◽  
Author(s):  
Laura E. Thorp ◽  
D. Richman Sumner ◽  
Joel A. Block ◽  
Kirsten C. Moisio ◽  
Susan Shott ◽  
...  
Keyword(s):  
Knee Joint ◽  
Knee Osteoarthritis ◽  
Joint Loading ◽  
Medial Knee ◽  
Medial Knee Osteoarthritis ◽  
Knee Joint Loading

scholarly journals The role of hip abductor strength on the frontal plane of gait in subjects with medial knee osteoarthritis

2019 ◽  
Vol 24 (4) ◽  
Author(s):  
Luiz Fernando Approbato Selistre ◽  
Glaucia Helena Gonçalves ◽  
Theresa Helissa Nakagawa ◽  
Marina Petrella ◽  
Richard Keith Jones ◽  
...  
Keyword(s):  
Knee Osteoarthritis ◽  
Frontal Plane ◽  
Medial Knee ◽  
Medial Knee Osteoarthritis ◽  
Hip Abductor ◽  
Abductor Strength

scholarly journals The Effect of Hip Bracing on Gait in Patients with Medial Knee Osteoarthritis

Arthritis ◽  
2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
David Wallace ◽  
Christa Barr
Keyword(s):  
Knee Joint ◽  
Knee Osteoarthritis ◽  
External Rotation ◽  
Protective Mechanism ◽  
Joint Loading ◽  
Medial Knee ◽  
Medial Knee Osteoarthritis ◽  
Knee Oa ◽  
Repeated Measures Design ◽  
Knee Joint Loading

Objective. Impaired hip motion has been associated with heightened medial knee joint loading in patients with knee osteoarthritis (OA). A hip external rotation strap designed to pull the femur into external rotation and abduction may serve as one protective mechanism. The primary aim of our study is to determine if the strap decreases medial knee joint loading during level walking in people with knee OA. Design. This study is a single-day repeated measures design. Methods. 15 volunteers with medial knee OA underwent motion analysis data collection during two randomly assigned walking conditions: (1) wearing the strap and (2) control (no strap). Primary outcome measures were peak pelvis, hip and knee joint motions, and torques. These outcomes were averaged across five trials for each condition. Results. Hip abduction (), trunk lean towards the stance limb () and pelvic tilt () significantly increased with the strap versus control trials. Knee adduction loading did not significantly change with the strap (). Conclusion. The use of the hip external rotation strap resulted in angular changes at the hip and pelvis which may be beneficial for patients with medial knee osteoarthritis.

Relationship between pain and medial knee joint loading in mild radiographic knee osteoarthritis

2007 ◽  
Vol 57 (7) ◽  
pp. 1254-1260 ◽  
Author(s):  
Laura E. Thorp ◽  
Dale R. Sumner ◽  
Markus A. Wimmer ◽  
Joel A. Block
Keyword(s):  
Knee Joint ◽  
Knee Osteoarthritis ◽  
Joint Loading ◽  
Medial Knee ◽  
Knee Joint Loading ◽  
Radiographic Knee Osteoarthritis

scholarly journals Effect of a Home Program of Hip Abductor Exercises on Knee Joint Loading, Strength, Function, and Pain in People With Knee Osteoarthritis: A Clinical Trial

2010 ◽  
Vol 90 (6) ◽  
pp. 895-904 ◽  
Author(s):  
Elizabeth A. Sled ◽  
Latif Khoja ◽  
Kevin J. Deluzio ◽  
Sandra J. Olney ◽  
Elsie G. Culham
Keyword(s):  
Knee Joint ◽  
Functional Performance ◽  
Knee Adduction Moment ◽  
Control Group ◽  
Joint Loading ◽  
Medial Knee ◽  
Knee Oa ◽  
Sit To Stand ◽  
Hip Abductor ◽  
Knee Joint Loading

BackgroundHip abductor muscle weakness may result in impaired frontal-plane pelvic control during gait, leading to greater medial compartment loading in people with knee osteoarthritis (OA).ObjectiveThis study investigated the effect of an 8-week home strengthening program for the hip abductor muscles on knee joint loading (measured by the external knee adduction moment during gait), strength (force-generating capacity), and function and pain in individuals with medial knee OA.DesignThe study design was a nonequivalent, pretest-posttest, control group design.SettingTesting was conducted in a motor performance laboratory.PatientsAn a priori sample size calculation was performed. Forty participants with knee OA were matched for age and sex with a control group of participants without knee OA.InterventionParticipants with knee OA completed a home hip abductor strengthening program.MeasurementsThree-dimensional gait analysis was performed to obtain peak knee adduction moments in the first 50% of the stance phase. Isokinetic concentric strength of the hip abductor muscles was measured using an isokinetic dynamometer. The Five-Times-Sit-to-Stand Test was used to evaluate functional performance. Knee pain was assessed with the Western Ontario and McMaster Universities Osteoarthritis Index questionnaire.ResultsFollowing the intervention, the OA group demonstrated significant improvement in hip abductor strength, but not in the knee adduction moment. Functional performance on the sit-to-stand test improved in the OA group compared with the control group. The OA group reported decreased knee pain after the intervention.LimitationsGait strategies that may have affected the knee adduction moment, including lateral trunk lean, were not evaluated in this study.ConclusionsHip abductor strengthening did not reduce knee joint loading but did improve function and reduce pain in a group with medial knee OA.

scholarly journals Relationship between foot function and medial knee joint loading in people with medial compartment knee osteoarthritis

2013 ◽  
Vol 6 (1) ◽  
Author(s):  
Pazit Levinger ◽  
Hylton B Menz ◽  
Adam D Morrow ◽  
John R Bartlett ◽  
Julian A Feller ◽  
...  
Keyword(s):  
Knee Joint ◽  
Knee Osteoarthritis ◽  
Medial Compartment ◽  
Joint Loading ◽  
Medial Knee ◽  
Foot Function ◽  
Knee Joint Loading

scholarly journals Effect of an ankle–foot orthosis on knee joint mechanics: A novel conservative treatment for knee osteoarthritis

2013 ◽  
Vol 38 (6) ◽  
pp. 481-491 ◽  
Author(s):  
Cynthia H Fantini Pagani ◽  
Steffen Willwacher ◽  
Rita Benker ◽  
Gert-Peter Brüggemann
Keyword(s):  
Knee Joint ◽  
Knee Osteoarthritis ◽  
Frontal Plane ◽  
Knee Adduction Moment ◽  
Varus Alignment ◽  
Medial Knee ◽  
Medial Knee Osteoarthritis ◽  
Ankle Foot Orthosis ◽  
Lever Arm ◽  
Foot Orthosis

Background: Several conservative treatments for medial knee osteoarthritis such as knee orthosis and laterally wedged insoles have been shown to reduce the load in the medial knee compartment. However, those treatments also present limitations such as patient compliance and inconsistent results regarding the treatment success. Objective: To analyze the effect of an ankle–foot orthosis on the knee adduction moment and knee joint alignment in the frontal plane in subjects with knee varus alignment. Study design: Controlled laboratory study, repeated measurements. Methods: In total, 14 healthy subjects with knee varus alignment were analyzed in five different conditions: without orthotic, with laterally wedged insoles, and with an ankle–foot orthosis in three different adjustments. Three-dimensional kinetic and kinematic data were collected during gait analysis. Results: Significant decreases in knee adduction moment, knee lever arm, and joint alignment in the frontal plane were observed with the ankle–foot orthosis in all three different adjustments. No significant differences could be found in any parameter while using the laterally wedged insoles. Conclusion: The ankle–foot orthosis was effective in reducing the knee adduction moment. The decreases in this parameter seem to be achieved by changing the knee joint alignment and thereby reducing the knee lever arm in the frontal plane. Clinical relevance This study presents a novel approach for reducing the load in the medial knee compartment, which could be developed as a new treatment option for patients with medial knee osteoarthritis.

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