用于脑瘫患儿步态分析的原田、哈林顿和戴维斯髋关节中心回归方程的比较。
Comparison of the Hara, Harrington, and Davis hip joint center regression equations for gait analysis in children with cerebral palsy.
作者信息
Hara Reiko, Wren Tishya A L
机构信息
Jackie and Gene Autry Orthopedic Center, Children's Hospital Los Angeles, 4650 Sunset Blvd. MS #69, Los Angeles, CA, USA.
Jackie and Gene Autry Orthopedic Center, Children's Hospital Los Angeles, 4650 Sunset Blvd. MS #69, Los Angeles, CA, USA; Departments of Orthopaedic Surgery, Radiology, and Biomedical Engineering, University of Southern California, 1540 Alcazar St., CHP 207 Los Angeles, CA, USA.
出版信息
Clin Biomech (Bristol). 2025 Jun;126:106565. doi: 10.1016/j.clinbiomech.2025.106565. Epub 2025 May 20.
BACKGROUND
Regression equations have been widely accepted in defining the location of the hip joint center in clinical gait analysis. Equations by Hara et al. require a single anthropometric measurement of leg length, allowing easy implementation in a clinical setting. This study evaluated the regression equations by Hara et al. in comparison to common equations by Harrington et al. and Davis et al. for clinical gait analysis in children with cerebral palsy.
METHODS
The location of the hip joint centers was defined by each of the aforementioned three models and compared for retrospective gait analysis data of 30 children with cerebral palsy (13 females, age 5-16 years). Gait kinematics at the hip and knee across those models were further compared.
FINDINGS
The location of the Hara hip joint center was defined in between the other two models: ∼1 cm anterior and medial with almost the same height as Harrington's model. Gait kinematics reflected the location of the hip joint centers, placing the curves from the Hara model in between the others. The root mean square differences between the Hara and the other models were within 2.6 degrees in all planes of motion.
INTERPRETATION
The regression equations by Hara et al. demonstrated similarity in the location of the hip joint center and gait kinematics to other common equations. The Hara model is simple, appears less susceptible to errors associated with soft tissue, and might be a good alternative option for clinical gait analysis in children with cerebral palsy.
背景
回归方程在临床步态分析中用于定义髋关节中心位置已被广泛接受。原田等人提出的方程只需对腿长进行单次人体测量，便于在临床环境中应用。本研究对原田等人的回归方程与哈林顿等人和戴维斯等人的常用方程进行了评估，以用于脑瘫患儿的临床步态分析。
方法
通过上述三种模型分别定义髋关节中心的位置，并对30例脑瘫患儿（13名女性，年龄5 - 16岁）的回顾性步态分析数据进行比较。进一步比较这些模型在髋关节和膝关节处的步态运动学。
结果
原田髋关节中心的位置介于其他两种模型之间：在哈林顿模型前方约1厘米、内侧，高度几乎相同。步态运动学反映了髋关节中心的位置，原田模型的曲线处于其他模型之间。原田模型与其他模型在所有运动平面上的均方根差异在2.6度以内。
解读
原田等人的回归方程在髋关节中心位置和步态运动学方面与其他常用方程相似。原田模型简单，似乎不太容易受到与软组织相关的误差影响，可能是脑瘫患儿临床步态分析的一个不错的替代选择。
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