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뇌성마비 Crouch 보행에서 고관절 회전각에 따른 3차원 근-골격 모델에서의 근-건 길이 변화

Other Titles
 Changes of the Muscle-tendon Lengths in a Three-dimensional Musculoskeletal Model according to the Hip Transverse Angle in Cerebral Palsy Patients with Crouch Gait. 
 김주영  ;  김현우  ;  이기석  ;  한수봉  ;  박희완  ;  박건보 
 Journal of the Korean Orthopaedic Association (대한정형외과학회지), Vol.46(2) : 130-139, 2011 
Journal Title
Journal of the Korean Orthopaedic Association(대한정형외과학회지)
Issue Date
cerebral palsy ; crouch gait ; musculoskeletal model ; hip rotation
PURPOSE: Crouch gait is one of the common pathologic gaits in children with cerebral palsy. Hamstring lengthening for alleviation of knee flexion is often considered as a first choice for the treatment of crouch gait. However, there have been a variety of reports about the lengths of the hamstring muscle. The purpose of this study was to classify the crouch gait on the transverse plane and to suggest a guide line for hamstring lengthening by analyzing the length of these muscles. MATERIALS AND METHODS: The subjects for this study were selected in ambulatory spastic diplegia patients with crouch gait. A total of sixty-two patients (124 cases) were included. The gait parameters and the muscle lengths were compared. The range of +/-1 standard deviation of the normal middle stance hip rotation was considered as the normal range. The subjects were divided into three groups as hip external rotated (group I), normal (group II) and hip internal rotated (group III) according to the hip rotation. RESULTS: The flexion of the knee and hip was the greatest in group III and dorsiflexion of the ankle was the least in group I. On comparison of moment and power on the sagittal plane, there was no significant difference among the groups. In group III, the percent lengths of the adductor, biceps femoris and gracilis muscles were increased the most, whereas the percent length of the semimembranosus was decreased the most. There was no statistical difference between groups I and II and the normal control group. CONCLUSION: Irrespective of the hip rotation, the length of the hamstring muscle in patients with crouch gait did not differ compared to that of the normal control. But if rotational osteotomy is done for the correction of the increased femoral anteversion in group III, then we should consider lengthening the semimembranosus muscle
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1. College of Medicine (의과대학) > Dept. of Orthopedic Surgery (정형외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Hyun Woo(김현우) ORCID logo https://orcid.org/0000-0001-8576-1877
Park, Hui Wan(박희완)
Lee, Ki Seok(이기석)
Hahn, Soo Bong(한수봉)
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