TY - JOUR
T1 - Knee joint vibroarthrography of asymptomatic subjects during loaded flexion-extension movements
AU - Andersen, Rasmus Elbæk
AU - Arendt-Nielsen, Lars
AU - Madeleine, Pascal
PY - 2018/12/1
Y1 - 2018/12/1
N2 - Vibroarthrography (VAG) has been proposed as a diagnostic tool for knee joint disorders. The methodological aspects of VAG assessments, such as sensor placement and outcomes measures have not been thoroughly investigated. The aim of this study was to investigate the effects of sensor placement and the effect of the knee extension and flexion movements using different added loads on six parameters extracted from VAGs of asymptomatic subjects. We hypothesized non-uniform distribution of VAGs during knee movement resulting from the underlying biomechanical features. Linear mixed model statistical analysis was carried out. Interpolation maps of the parameters were created to illustrate their spatial distribution over the knee joint. All parameters were significantly related to load, movement type, and location. There were significant load × movement type and location × movement type interaction for ARV and MPF, respectively. Further, the topographical maps of the six VAG parameters differed underlining the complementary information of the six VAG outcomes. The non-uniformity of the spatial distribution, movement type, and the knee joint load dependency of the investigate parameters open for new uses of VAG for joint diagnostic purposes including activities of daily living. [Figure not available: see fulltext.].
AB - Vibroarthrography (VAG) has been proposed as a diagnostic tool for knee joint disorders. The methodological aspects of VAG assessments, such as sensor placement and outcomes measures have not been thoroughly investigated. The aim of this study was to investigate the effects of sensor placement and the effect of the knee extension and flexion movements using different added loads on six parameters extracted from VAGs of asymptomatic subjects. We hypothesized non-uniform distribution of VAGs during knee movement resulting from the underlying biomechanical features. Linear mixed model statistical analysis was carried out. Interpolation maps of the parameters were created to illustrate their spatial distribution over the knee joint. All parameters were significantly related to load, movement type, and location. There were significant load × movement type and location × movement type interaction for ARV and MPF, respectively. Further, the topographical maps of the six VAG parameters differed underlining the complementary information of the six VAG outcomes. The non-uniformity of the spatial distribution, movement type, and the knee joint load dependency of the investigate parameters open for new uses of VAG for joint diagnostic purposes including activities of daily living. [Figure not available: see fulltext.].
KW - Accelerometer
KW - Interpolation maps
KW - Knee disorders
KW - Recurrence quantification analysis
KW - Vibration arthrometry
KW - Vibroarthrographic processing
UR - http://www.scopus.com/inward/record.url?scp=85048786403&partnerID=8YFLogxK
U2 - 10.1007/s11517-018-1856-6
DO - 10.1007/s11517-018-1856-6
M3 - Journal article
C2 - 29926251
SN - 0140-0118
VL - 56
SP - 2301
EP - 2312
JO - Medical & Biological Engineering & Computing
JF - Medical & Biological Engineering & Computing
IS - 12
ER -