Dynamic Lower-Limb Alignment Focusing on Gait Stability  

作　　者：Kan Imai Takeshi Onishi Koshiro Sawada Kan Imai;Takeshi Onishi;Koshiro Sawada(Department of Orthopaedics, Kyoto Prefectural Rehabilitation Hospital for Mentally and Physically Disabled, Kyoto, Japan;Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural, University of Medicine, Kyoto, Japan;Department of Consultation and Assessment Section, Kyoto Prefectural General Family Support Center, Kyoto, Japan;Department of Rehabilitation Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan;Department of Multidisciplinary Promote for Physical Activity, University Hospital, Kyoto Prefectural University of Medicine, Kyoto, Japan)

机构地区：[1]Department of Orthopaedics, Kyoto Prefectural Rehabilitation Hospital for Mentally and Physically Disabled, Kyoto, Japan [2]Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural, University of Medicine, Kyoto, Japan [3]Department of Consultation and Assessment Section, Kyoto Prefectural General Family Support Center, Kyoto, Japan [4]Department of Rehabilitation Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan [5]Department of Multidisciplinary Promote for Physical Activity, University Hospital, Kyoto Prefectural University of Medicine, Kyoto, Japan

出　　处：《Open Journal of Therapy and Rehabilitation》2022年第4期179-188,共10页康复医学（英文）

摘　　要：Introduction: Prosthetic limbs must be developed with proper alignment to facilitate safe and efficient gait patterns. This study aimed to identify factors impacting clinically proper gait patterns by objectively evaluating them in persons with lower-limb amputations who use prosthetic limbs. Materials and Methods: This non-experimental descriptive study assessed 58 persons with amputation who used prosthetic limbs. The mechanical axis angle (MAA) of the lower limb during the heel contact, midstance, and toe-off phases and the angle between the tube and floor during the midstance phase were measured using coronal plane gait images. We also investigated whether the MAA and tube angle during the midstance phase have a multimodal distribution. In case of multimodal distributions, we tested for significant between-group differences in patient characteristics. Results: The MAA and tube angle in the coronal plane during the midstance phase had a bimodal distribution (mean 0°). There was a significant difference in the duration of prosthetic limb use between the MAA < 0° and ≥0° groups during the midstance phase. Deviations in the lower limb MAA between the heel contact and midstance phases were 3.3° ± 2.2° and 3.1° ± 2.3° for persons with lower limb amputations in the MAA Conclusions: In this study, prosthetic alignment during the midstance phase had a bimodal distribution. In both groups, deviations in the lower limb MAA were aligned to be approximately 3°.Introduction: Prosthetic limbs must be developed with proper alignment to facilitate safe and efficient gait patterns. This study aimed to identify factors impacting clinically proper gait patterns by objectively evaluating them in persons with lower-limb amputations who use prosthetic limbs. Materials and Methods: This non-experimental descriptive study assessed 58 persons with amputation who used prosthetic limbs. The mechanical axis angle (MAA) of the lower limb during the heel contact, midstance, and toe-off phases and the angle between the tube and floor during the midstance phase were measured using coronal plane gait images. We also investigated whether the MAA and tube angle during the midstance phase have a multimodal distribution. In case of multimodal distributions, we tested for significant between-group differences in patient characteristics. Results: The MAA and tube angle in the coronal plane during the midstance phase had a bimodal distribution (mean 0°). There was a significant difference in the duration of prosthetic limb use between the MAA < 0° and ≥0° groups during the midstance phase. Deviations in the lower limb MAA between the heel contact and midstance phases were 3.3° ± 2.2° and 3.1° ± 2.3° for persons with lower limb amputations in the MAA Conclusions: In this study, prosthetic alignment during the midstance phase had a bimodal distribution. In both groups, deviations in the lower limb MAA were aligned to be approximately 3°.

关 键 词：Prosthetic Limbs ALIGNMENT Gait Below-the-Knee Amputation 

分 类 号：R31[医药卫生—基础医学]