scholarly journals Assessing the accuracy of measuring leg length discrepancy and genu varum/valgum using a markerless motion analysis system

2021 ◽  
Vol 26 ◽  
pp. 45-48
Author(s):  
Robert J. Hurley ◽  
Martin S. Davey ◽  
Micheal Newell ◽  
Aiden Devitt
Keyword(s):  
Motion Analysis ◽  
Leg Length Discrepancy ◽  
Genu Varum ◽  
Motion Analysis System ◽  
Leg Length ◽  
Length Discrepancy ◽  
Analysis System

Dynamic leg length measurement is a valid method for detecting anatomic leg length discrepancy

2020 ◽  
pp. 1-11
Author(s):  
Sam Khamis
Keyword(s):  
Gait Cycle ◽  
Pearson Correlation ◽  
Reliability And Validity ◽  
Swing Phase ◽  
Leg Length Discrepancy ◽  
Leg Length ◽  
Functional Changes ◽  
Length Discrepancy ◽  
Leg Length Difference ◽  
Analysis System

BACKGROUND: Even though the importance of leg length discrepancy (LLD), with its potential of causing several pathological conditions or gait deviations, is well known, measuring LLD is still challenging with limited reliability and validity. OBJECTIVE: To assess the capability of the dynamic leg length (DLL) measurement in detecting the presence of anatomic LLD. METHODS: A lower limb x-ray was performed on 15 participants with suspected LLD in addition to a gait analysis study using a motion analysis system to measure DLL (the absolute distance from the hip joint centre to the heel, to the ankle joint centre and to the forefoot). Average DLLs were compared between sides for symmetry by the paired t-test at 51 sample points during the gait cycle in conjunction with the differences between the sides based on the maximal stance phase and minimal swing phase DLLs. Differences were correlated with anatomic LLD by Pearson correlation. RESULTS: No significant differences in DLLs between sides throughout the gait cycle were found. Significant differences between sides were found between the maximal stance and minimal swing phase DLLs. CONCLUSIONS: DLL measurement is capable of detecting an anatomic leg length difference based on functional changes in leg length and functional discrepancy.

Changes in patient-perceived leg length discrepancy following total hip arthroplasty

2021 ◽  
Author(s):  
Kentaro Iwakiri ◽  
Yoichi Ohta ◽  
Takashi Fujii ◽  
Yukihide Minoda ◽  
Akio Kobayashi ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Leg Length Discrepancy ◽  
Leg Length ◽  
Total Hip ◽  
Length Discrepancy

scholarly journals Investigation of normal knees kinematics in walking and running at different speeds using a portable motion analysis system

2021 ◽  
pp. 1-14
Author(s):  
Rixu Liu ◽  
Dongyang Qian ◽  
Yushu Chen ◽  
Jianyu Zou ◽  
Shicong Zheng ◽  
...  
Keyword(s):  
Motion Analysis ◽  
Motion Analysis System ◽  
Analysis System

mobiLLD: Exploring the Detection of Leg Length Discrepancy and Altering Gait with Mobile Smart Insoles

2021 ◽  
Author(s):  
Denys J.C. Matthies ◽  
Don Samitha Elvitigala ◽  
Annis Fu ◽  
Deborah Yin ◽  
Suranga Nanayakkara
Keyword(s):  
Leg Length Discrepancy ◽  
Leg Length ◽  
Length Discrepancy

scholarly journals Epiphysiodesis for the treatment of tall stature and leg length discrepancy

2021 ◽  
Author(s):  
Madeleine Willegger ◽  
Markus Schreiner ◽  
Alexander Kolb ◽  
Reinhard Windhager ◽  
Catharina Chiari
Keyword(s):  
Surgical Planning ◽  
Multidisciplinary Approach ◽  
Treatment Options ◽  
Bone Age ◽  
Leg Length Discrepancy ◽  
Tall Stature ◽  
Complication Rates ◽  
Leg Length ◽  
Growth Prediction ◽  
Length Discrepancy

SummaryPainful orthopedic conditions associated with extreme tall stature and leg length discrepancy (LLD) include back pain and adopting bad posture. After failure of conservative treatment options, blocking of the growth plates (epiphysiodesis) around the knee emerged as gold standard in patients with tall stature and LLD in the growing skeleton. Surgical planning includes growth prediction and evaluation of bone age. Since growth prediction is associated with a certain potential error, adequate planning and timing of epiphysiodesis are the key for success of the treatment. LLD corrections up to 5 cm can be achieved, and predicted extreme tall stature can be limited. Percutaneous epiphysiodesis techniques are minimally invasive, safe and efficient methods with low complication rates. In general, a multidisciplinary approach should be pursued when treating children and adolescents with tall stature.

The effect of leg length discrepancy upon load distribution in the static phase (standing)

2014 ◽  
Vol 40 (4) ◽  
pp. 561-563 ◽  
Author(s):  
V. Swaminathan ◽  
M. Cartwright-Terry ◽  
J.D. Moorehead ◽  
A. Bowey ◽  
S.J. Scott
Keyword(s):  
Load Distribution ◽  
Leg Length Discrepancy ◽  
Leg Length ◽  
Length Discrepancy ◽  
Static Phase

Leg length discrepancy after total hip arthroplasty

2004 ◽  
Vol 19 (4) ◽  
pp. 108-110 ◽  
Author(s):  
William J Maloney ◽  
James A Keeney
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Leg Length Discrepancy ◽  
Leg Length ◽  
Total Hip ◽  
Length Discrepancy
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