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KMID : 0361620140490050366
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Journal of the Korean Orthopaedic Association
2014 Volume.49 No. 5 p.366 ~ p.373
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Diagnostic Availability of Pedobarography and Correlation of Radiographic and Pedobarographic Measurements in Pediatric Flexible Flatfoot
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Seol Young-Jun
Jung Sung-Taek
Yang Hyun-Kee
Lee Keun-Bae
Oh Chang-Seon
Jung Young-Ju
Cho Hang-Nan
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Abstract
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Purpose : The purpose of this study was to analyze the diagnostic availability and to examine the co-relation between pedobaragraphy and radiography of pediatric flexible flatfoot.
Materials and Methods : Seventeen patients and ten normal children were studied. In radiographic evaluation, the talo-1st metatarsal angle was measured on anteroposterior radiographs; and the talo-1st metatarsal angle, the talo-horizontal angle, the calcaneal pitch, and the talocalcaneal angle were measured on lateral radiographs. In pedobarography, foot pressures were subdivided into eight areas for measurement of contact time, ratio of measured area and to investigate the relation between the degree of the medial deviation of the Center of pressure line and the radiographic measurements.
Results : Flat foot group and normal group showed statistically significant difference in every angle measured in lateral radiographs. The foot pressure ratios of the lateral sides in forefoot and the medial and lateral sides of midfoot and the medial side of hindfoot between the flexible flatfoot group and normal group showed statistically significant difference in pedobarography and ratio of contact area in forefoot and hindfoot showed significant change in statistics but no changes in contact time. The relation between pedobarography and radiography was investigated: foot pressure of the medial and lateral side of forefoot and the talocalcaneal angle showed significant relation in statistics and foot pressure of the medial and lateral side of mid foot and every angle measured in lateral radiographs showed significant relation in statistics. Contact time of midfoot and every radiographic value measured in lateral radiograph showed significant relation in statistics and contact area of forefoot and midfoot showed significant relation with every radiographic value measured in lateral radiographs. In addition, medial deviation of center of pressure line showed significant relation in statistics with talus-first metatarsal angle measured on anteroposterior radiographs and talo-horizontal angle and talus-first metatarsal angle measured on lateral radiographs.
Conclusion : The results of this study showed correlation between radiologic methods and pedobarography in diagnosis of pediatric flexible flatfoot and pedobarography is an useful tool in quantitative and qualitative analysis of the degree of foot deformity and medial deviation of center of pressure line.
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KEYWORD
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flexible flatfoot, pedobarography, radiography
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