Abstracts / Annals of Physical and Rehabilitation Medicine 61S (2018) e435–e557 e451 ISPR8-1943 Prototype of specific hydraulic acting orthosis in recovery standing and walking in stroke patients A.M. Bumbea 1,* , L. Grigore 2 , L. Dinca 2 , O. Rogoveanu 1 , C. Albu 3 , R. Traistaru 1 , E. Paun 4 , B. Bumbea 5 , L. Paun 6 , R. Dumitrascu 7 , D. Popescu 2 , M. Borcan 8 , G. Onose 9 1 University of Medicine and Pharmacy, Medical Rehabilitation, Craiova, Romania 2 University of Craiova, Robotics, Craiova, Romania 3 University of Medicine and Pharmacy, Neurology, Craiova, Romania 4 University of Craiova, Physical Education, Craiova, Romania 5 Emergengy County Hospital, Orthopedic, Craiova, Romania 6 Lotus Med, Medical Rehabilitation, Bucuresti, Romania 7 Emergengy County Hospital, Medical Rehabilitation, Craiova, Romania 8 Neuropsychiatry Hospital, Rehabilitation, Craiova, Romania 9 University of Medicine and Pharmacy, Medical Rehabilitation, Bucuresti, Romania * Corresponding author. E-mail address: anamariabumbea@yahoo.com (A.M. Bumbea) Introduction/Background Our research highlight the utility of specific devices to enhance the performances of orthostatism and walking in patients with stroke. Material and method The configuration of the orthosis skele- ton, based on composite glass fiber, allows the adjustment of the dimensions and anatomical fit of the patient’s lower limb by a tele- scopic system to make it as ergonomic as possible. The control is achieved by three hydraulic distributors powered by a miniature pump. Feedback from the level of the orthosis joints corresponding to human ones is ensured by three resistive potentiometric trans- ducers. We corrected the posture of the foot, the equine and the muscular imbalance caused by the spasticity. The prototype test- ing will follow the bioethics rules in volunteer patients by analyzing the following parameters: modified Ashworth scale for spasticity, Tinetti balance and walking scales. Results The orthosis achieved the maximum compaction of the available components for the best functionality. For this purpose the support frame is made of composite material based on glass fiber, and the actuators are hydraulic, providing maximum force at the proposed gauge. The power supply of the system in this phase is made from the 220 V AC with a power about of 100 W for normal walking on flat ground. An autonomy of several hours is expected. Although the movement is made on a flat ground, but orthosis allows the assisting for climbing and down stairs. Conclusion This prototype of orthosis could be the future in reha- bilitation of walking in the stroke patient, and it has the capacity to be extend to the other lower limb for paraparetic patients. Keywords Stroke; Walking; Orthosis Disclosure of interest The authors have not supplied their decla- ration of competing interest. https://doi.org/10.1016/j.rehab.2018.05.1051 ISPR8-2052 Correlation of musculoskeletal ultrasound and electrodiagnosis in patients with Carpal tunnel syndrome L.M. Allen Hermosillo * , D. Guerrero Aguilar , S. Alvarado Ramos Instituto mexicano del seguro social, unidad de medicina fìsica y rehabilitaciòn no. 1, Monterrey, Mexico * Corresponding author. E-mail address: lucyallen77@yahoo.com.mx (L.M. Allen Hermosillo) Introduction/Background The MSK USG provides a clear image of tendons and nerves at level of the carpal tunnel. However, there is no specific ultrasonographic standardized measure in Mexicans that supports diagnosis of STC. Objective To establish ultrasound measurements of the median nerve in healthy people and their correlation with electrodiagnosis in patients with STC. Material and method Two phases were performed. In first, 48 hands in 24 healthy subjects were assessed with EMG study. By means of the musculoskeletal ultrasound, the Cross Sectional Area of the median nerve was measured in two points: 12 cm cephalic to the proximal crease of the carpus and the tunnel entrance. The index A is calculated with these two measurements and finally the thickness of the transverse carpal ligament was measured. In the second phase, 25 patients with a clinical and electromyographic diagnosis of CTS were evaluated, who underwent the same ultra- sonographic measurements. We explored Kolmogorov-Smirnov distribution of quantitative series of sample, Student’s T for vari- ables of central tendency (P < 0.05) Fisher’s test for comparison groups and Momios OD coefficient to establish sensitivity and specificity of indicators. Results Index A and AST were found with greater difference in patients with CTS (P ≤ 0.001) with respect to controls, having direct correlation with clinical stage. The predictive variables of CTS were age > 44 years, BMI > 26.381, and index A greater than 1.1. Conclusion The MSK USG in CTS is useful for perform its diagnosis. Index A is a tool with high sensitivity and specificity as well as being essential in cases where median nerve in initial stages still has no increase in size of its thickness. Keywords Carpal tunnel syndrome; Musculoskeletal ultrasound; Cross sectional area Disclosure of interest The authors have not supplied their decla- ration of competing interest. https://doi.org/10.1016/j.rehab.2018.05.1052 ISPR8-0437/The abnormalities of the hip and knee joints in patients with posterior tibialis tendon dysfunction: Comparison with healthy age-matched controls N. Hishikawa 1,* , S. Toyama 2,3 , K. Ikoma 2 , D. Taniguchi 2 , M. Kido 2 , S. Ohashi 1 , S. Kubo 3 , H. Maeda 1 , K. Sawada 1 , Y. Mikami 1,3 , K. Toshikazu 1,2,3 1 Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Department of Rehabilitation Medicine, Kyoto, Japan 2 Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Department of Orthopedics, Kyoto, Japan 3 Kyoto Prefectural University Hospital, Rehabilitation Unit, Kyoto, Japan * Corresponding author. E-mail address: hisikawa@koto.kpu-m.ac.jp (N. Hishikawa) Introduction/Background Loss of the longitudinal arch and pro- gressive hindfoot valgus are common clinical observations in the foot deformities of patients with posterior tibial tendon dysfunc- tion (PTTD). The biomechanical abnormalities in patients with PTTD have been described, but few studies have investigated biome- chanical chains of adjacent joints. Therefore, we examined the abnormalities of hip and knee joints through the gait analysis in subjects with PTTD. Material and method We compared 19 PTTD patients (average age: 67.1) with 30 age-matched control subjects (average age: 65.1). Subjects’ demographics was showed in Table 1. Gait analy- sis was performed with a nine-camera motion-capture system and four force plates, using the VICON Plug-In-Gait and VICON Nexus software. Temporal-spatial parameters were compared between PTTD and control subjects, and joint angle and joint moment data were compared between the affected limb, the contralateral limb, and the right limb in control subjects.