Ahn Jae Ki, Kwon Dong Rak, Park Gi-Young, Lee Ki-Hoon, Rim Jae Hwal, Jung Won Bin, Kwon Dae Gil
Department of Rehabilitation Medicine, Inje University Sanggye Paik Hospital, Seoul, Korea.
Department of Rehabilitation Medicine, Catholic University of Daegu School of Medicine, Daegu, Korea.
Ann Rehabil Med. 2017 Feb;41(1):104-112. doi: 10.5535/arm.2017.41.1.104. Epub 2017 Feb 28.
To investigate the efficacy of portable microcurrent therapy device (PMTD) of the hip internal rotators in the treatment of in-toeing gait caused by increased femoral anteversion in children over 8 years of age.
Eleven children (22 legs; 4 boys and 7 girls; mean age, 10.4±1.6 years) with in-toeing gait caused by increased femoral anteversion were included in the present study. All children received 60 minutes of PMTD (intensity, 25 µA; frequency, 8 Hz) applied to the hip internal rotators daily for 4 weeks. Hip internal rotation (IR) angle, external rotation (ER) angle, and midmalleolar-second toe angle (MSTA) measurement during stance phase at transverse plane and Family Satisfaction Questionnaire, frequency of tripping and fatigue like pains about the PMTD were performed before treatment and at 4 weeks after initial PMTD treatment. Paired t-test and Fisher exact test were used for statistical analysis.
Hip IR/ER/MSTA was 70.3°±5.4°/20.1°±5.5°/-11.4°±2.7°, and 55.7°±7.8°/33.6°±8.2°/-2.6°±3.8° before treatment and at 4 weeks after initial PMTD treatment, respectively (p<0.01). Ten of 11 (91%) children's family stated that they were generally satisfied with the PMTD treatment. The frequency of tripping and fatigue like pains was significantly lower at 4 weeks after PMTD treatment (p<0.05). Excellent inter-rater and intra-rater reliability was observed for repeated MSTA measurements between the examiners (k=0.91-0.96 and k=0.93-0.99), respectively.
PMTD of the hip internal rotators can be effective in improving the gait pattern of children with in-toeing gait caused by increased femoral anteversion.
探讨便携式微电流治疗设备（PMTD）对髋内旋肌的治疗效果，用于治疗8岁以上儿童因股骨前倾增加导致的内八字步态。
本研究纳入11名因股骨前倾增加导致内八字步态的儿童（22条腿；4名男孩和7名女孩；平均年龄10.4±1.6岁）。所有儿童每天接受60分钟的PMTD治疗（强度25微安；频率8赫兹），作用于髋内旋肌，持续4周。在治疗前和首次PMTD治疗后4周，测量站立期横平面的髋内旋（IR）角度、外旋（ER）角度和中踝-第二趾角度（MSTA），并进行家庭满意度问卷调查，记录绊倒频率以及与PMTD相关的疲劳样疼痛情况。采用配对t检验和Fisher精确检验进行统计分析。
治疗前和首次PMTD治疗后4周，髋IR/ER/MSTA分别为70.3°±5.4°/20.1°±5.5°/-11.4°±2.7°和55.7°±7.8°/33.6°±8.2°/-2.6°±3.8°（p<0.01）。11名儿童中有10名（91%）的家长表示对PMTD治疗总体满意。PMTD治疗后4周，绊倒频率和疲劳样疼痛明显降低（p<0.05）。检查者之间重复测量MSTA时，评分者间和评分者内的可靠性均极佳（分别为k=0.91-0.96和k=0.93-0.99）。
髋内旋肌的PMTD可有效改善因股骨前倾增加导致内八字步态的儿童的步态模式。
