Slow-motion smartphone video improves interobserver reliability of gait assessment in ambulatory cerebral palsy.

IF 1.3 4区 医学 Q3 ORTHOPEDICS Journal of Childrens Orthopaedics Pub Date : 2023-08-01 DOI:10.1177/18632521231177273
Dane J Brodke, Katherine Makaroff, Enda G Kelly, Mauricio Silva, Rachel M Thompson
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Abstract

Purpose: Structured visual gait assessment is essential for the evaluation of pediatric patients with neuromuscular conditions. The purpose of this study was to evaluate the benefit of slow-motion video recorded on a standard smartphone to augment visual gait assessment.

Methods: Coronal and sagittal plane videos of the gait of five pediatric subjects were recorded on a smartphone, including four subjects with ambulatory cerebral palsy and one subject without gait pathology. Twenty-one video scorers were recruited and randomized to evaluate slow-motion or normal-speed videos utilizing the Edinburgh Visual Gait Score. The slow-motion group (N = 11) evaluated the videos at one-eighth speed, and the normal-speed group (N = 10) evaluated the same videos at normal speed. Interrater reliabilities were determined by calculating intraclass correlation coefficients for each group as a whole, for each Edinburgh Visual Gait Score item, and after stratification by evaluator experience level.

Results: The slow-motion group exhibited an intraclass correlation coefficient of 0.65 (95% confidence interval: 0.58-0.73), whereas the normal-speed group exhibited an intraclass correlation coefficient of 0.57 (95% confidence interval: 0.49-0.65). For less-experienced scorers, intraclass correlation coefficients of 0.62 (95% confidence interval: 0.53-0.71) and 0.50 (95% confidence interval: 0.40-0.59) were calculated for slow motion and normal speed, respectively. For more-experienced scorers, intraclass correlation coefficients of 0.69 (95% confidence interval: 0.61-0.76) and 0.67 (95% confidence interval: 0.58-0.75) were calculated for slow motion and normal speed, respectively.

Conclusions: Visual gait assessment is enhanced by the use of slow-motion smartphone video, a tool widely available throughout the world with no marginal cost.

Level of evidence: level I, randomized study.

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慢动作智能手机视频提高了动态脑瘫患者步态评估的观察者间可靠性。
目的:结构化的视觉步态评估是评估小儿神经肌肉疾病患者的必要条件。本研究的目的是评估在标准智能手机上录制的慢动作视频对增强视觉步态评估的好处。方法:用智能手机记录5例小儿受试者的冠状面和矢状面步态视频,其中4例为动态脑瘫,1例为无步态病理。21名视频评分者被招募并随机使用爱丁堡视觉步态评分来评估慢动作或正常速度的视频。慢动作组(N = 11)以八分之一的速度观看视频,正常速度组(N = 10)以正常速度观看相同的视频。通过计算每组整体、每个爱丁堡视觉步态评分项目的类内相关系数,并按评估者经验水平分层,确定评估者间信度。结果:慢动作组组内相关系数为0.65(95%可信区间为0.58 ~ 0.73),匀速组组内相关系数为0.57(95%可信区间为0.49 ~ 0.65)。对于经验不足的评分者,慢动作和正常速度的组内相关系数分别为0.62(95%置信区间:0.53-0.71)和0.50(95%置信区间:0.40-0.59)。对于经验丰富的评分者,慢动作和正常速度的组内相关系数分别为0.69(95%置信区间:0.61-0.76)和0.67(95%置信区间:0.58-0.75)。结论:使用慢动作智能手机视频可以增强视觉步态评估,这是一种在世界范围内广泛使用的工具,没有边际成本。证据等级:I级,随机研究。
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来源期刊
Journal of Childrens Orthopaedics
Journal of Childrens Orthopaedics Medicine-Orthopedics and Sports Medicine
CiteScore
2.70
自引率
14.30%
发文量
61
审稿时长
23 weeks
期刊介绍: Aims & Scope The Journal of Children’s Orthopaedics is the official journal of the European Paediatric Orthopaedic Society (EPOS) and is published by The British Editorial Society of Bone & Joint Surgery. It provides a forum for the advancement of the knowledge and education in paediatric orthopaedics and traumatology across geographical borders. It advocates an increased worldwide involvement in preventing and treating musculoskeletal diseases in children and adolescents. The journal publishes high quality, peer-reviewed articles that focus on clinical practice, diagnosis and treatment of disorders unique to paediatric orthopaedics, as well as on basic and applied research. It aims to help physicians stay abreast of the latest and ever-changing developments in the field of paediatric orthopaedics and traumatology. The journal welcomes original contributions submitted exclusively for review to the journal. This continuously published online journal is fully open access and will publish one print issue each year to coincide with the EPOS Annual Congress, featuring the meeting’s abstracts.
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