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RISS 인기검색어
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- 저자 : Jong Yoon Yu(유종윤) (검색결과 2 건)
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윤상원,임승철,노성우,유종윤,하상배,Yoon, Sang Won,Rhim, Seung Chul,Roh, Sung Woo,Yu, Jong Youn,Ha, Sang Bae 대한신경외과학회 2000 Journal of Korean neurosurgical society Vol.29 No.4
Objective : To investigate objectively the postoperative improvement of gait disturbance in patients with cervical myelopathy through a gait analysis. Patients and Methods : Ten patients who underwent cervical decompression and fusion for cervical myelopathy caused by spondylosis, OPLL, or concomitant hypertrophy of ligamentum flavum were studied. Preoperatively, gait disturbance was present in all patients. The patients were evaluated by gait analysis using three dimensional motion analyzer to collect data of linear and kinematic parameters before surgery, 1 week and 3 months after surgery. Statistical analysis of the related pre-and post-operative data were performed. Results : In the linear parameters, average value of cadence, walking speed, stride length, step time, width and double support were increased postoperatively compare to preoperative value. In the kinematic parameters, average value of knee flexion during initial swing phase, plantar flexion of ankle and range of motion of hip joint were increased as well. These differences were statistically significant(p<0.05). Conclusion : This study suggests that gait analysis can be used as a method of quantitative analysis of postoperative gait improvement in patients with cervical myelopathy.
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Su Hyun Cho(조수현),Soo Ho Lee(이수호),Ki Hyung Kim(김기형),Jong Yoon Yu(유종윤) 대한정형외과학회 2004 대한정형외과학회지 Vol.39 No.5
목적: 고관절 이형성증 환자의 고관절 전치환술 후 기능적 호전을 객관적이고 정량적으로 평가하고자 3차원 동작 분석기를 이용하여 수술 전, 후의 보행 변화를 관찰하고 대퇴골두 골괴사 환자와 보행 호전정도를 비교하였다. 대상 및 방법: 1996년 6월부터 2002년 1월까지 본원에서 고관절 이형성증으로 수술한 34예를 대상으로 하였으며, 평균 연령은 43.7세였고, Crowe 1형이 15예, 2형이 11예, 3형이 3예, 4형이 5예이었고, 보행분석은 Vicon 370 motion analysis system을 사용하였다. 비교군은 나이, 성별 등에서 조화되는 대퇴골두 골괴사 환자 39예와 24예의 정상 성인군으로 하였다. 결과: 수술 전 고관절 이형성증 환자의 보행은 정상에 비해 보행 선형요소, 운동형상학 및 운동학적 요소 전부분에서 유의한 차이가 있었으나 대퇴골두 골괴사군과는 유의한 차이가 없었다. 하지만 수술 1년 후 고관절 이형성증 환자군 중 Crowe 3, 4형은 대퇴골두 골괴사군에 비해 고관절 굴곡력과 외전근력에서 유의하게 불량한 결과를 보였다(p<0.05). 결론: 3차원 보행 분석상 고관절 이형성증은 고관절 전치환술 후에도 대퇴골두 골괴사 환자에 비해 보행 양상이 불량하였으며, 이는 주로 고관절 근력, 특히 굴곡근과 외전근의 약화에 의한 것임을 알 수 있었다. 따라서 고관절 이형성증 환자의 경우 수술 후 지속적인 고관절 굴곡근과 외전근의 근력 강화 운동이 보행의 호전에 도움이 되리라 생각된다. Purpose: The aim of this study was to objectively evaluate the abnormal gait patterns and gait improvements after a total hip arthroplasty (THA) in patients with hip dysplasia and osteonecrosis of the femoral head (ONFH). Materials and Methods: Thirty-four patients (mean age of 43.7 years) with hip dysplasia who underwent THA were divided into the Crowe types (15 type 1, 11 type 2, 3 type 3, and 5 type 4), and gait analyses of these patients were performed using the Vicon 370 motion analysis system. The results of this group were compared with those of 39 age and gender matched patients with ONFH who received a THA and a group of 24 individuals with normal hips. Results: Preoperatively, the gait pattern of the hip dysplasia group did not differ significantly from that of the ONFH group with respect to the temporal gait measurement parameters, kinematics, and kinetics. However, the hip dysplasia group had a different gait pattern than the normal control group and one year after surgery, there were significant differences in the moments and powers of the hip flexors and abductors of patients with severe hip dysplasia (Crowe types 3 and 4) compared with those of the ONFH patients. Conclusion: There were less postoperative gait improvements in the patients with severe hip dysplasia than in those with ONFH who had a relatively normal anatomy. These observations might be the result of their weakened hip muscles, particularly the flexors and abductors, despite their increased range of motion after surgery. Perioperative muscle strengthening exercises may be needed to improve gait patterns in patients with hip dysplasia.
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