Gait analysis in patients after bilateral versus unilateral total hip arthroplasty

Temporiti, Federico; Zanotti, Giulia; Furone, Roberta; Molinari, Sara; Zago, Matteo; Loppini, Mattia; Galli, Manuela; Grappiolo, Guido; Gatti, Roberto

doi:10.1016/j.gaitpost.2019.05.026

Cited by 26 publications

(16 citation statements)

References 33 publications

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“…The accuracy of markerless motion tracking depends on three factors: the occlusions between body parts, cameras position/orientation and video resolution; considering the best combination of the considered factors (cameras distance 1.8 m, maximum resolution, and no occlusions due to straight walking) the lowest error in 3D trajectories reconstruction was about 20 mm, the lowest error in swing/stance time was 0.03 s and 1.23 cm in step length. Values are comparable with intra-subject variability in clinical gait analysis investigations (Ciprandi et al, 2017;Temporiti et al, 2019), thus encourage a preliminary adoption of OpenPose-based markerless solutions in this setting. However, it should be noticed that a different configuration (smaller camera distance, lower resolution or diagonal gait direction) can negatively affect the results.…”

Section: Discussionsupporting

confidence: 61%

3D Tracking of Human Motion Using Visual Skeletonization and Stereoscopic Vision

Zago

Luzzago²,

Marangoni³

et al. 2020

Front. Bioeng. Biotechnol.

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The design of markerless systems to reconstruct human motion in a timely, unobtrusive and externally valid manner is still an open challenge. Artificial intelligence algorithms based on automatic landmarks identification on video images opened to a new approach, potentially e-viable with low-cost hardware. OpenPose is a library that t using a two-branch convolutional neural network allows for the recognition of skeletons in the scene. Although OpenPose-based solutions are spreading, their metrological performances relative to video setup are still largely unexplored. This paper aimed at validating a two-cameras OpenPose-based markerless system for gait analysis, considering its accuracy relative to three factors: cameras' relative distance, gait direction and video resolution. Two volunteers performed a walking test within a gait analysis laboratory. A marker-based optical motion capture system was taken as a reference. Procedures involved: calibration of the stereoscopic system; acquisition of video recordings, simultaneously with the reference marker-based system; video processing within OpenPose to extract the subject's skeleton; videos synchronization; triangulation of the skeletons in the two videos to obtain the 3D coordinates of the joints. Two set of parameters were considered for the accuracy assessment: errors in trajectory reconstruction and error in selected gait space-temporal parameters (step length, swing and stance time). The lowest error in trajectories (∼20 mm) was obtained with cameras 1.8 m apart, highest resolution and straight gait, and the highest (∼60 mm) with the 1.0 m, low resolution and diagonal gait configuration. The OpenPose-based system tended to underestimate step length of about 1.5 cm, while no systematic biases were found for swing/stance time. Step length significantly changed according to gait direction (p = 0.008), camera distance (p = 0.020), and resolution (p < 0.001). Among stance and swing times, the lowest errors (0.02 and 0.05 s for stance and swing, respectively) were obtained with the 1 m, highest resolution and straight gait configuration. These findings confirm the feasibility of tracking kinematics and gait parameters of a single subject in a 3D space using two low-cost webcams and the OpenPose engine. In particular, the maximization of cameras distance and video resolution enabled to achieve the highest metrological performances.

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Section: Discussionsupporting

confidence: 61%

3D Tracking of Human Motion Using Visual Skeletonization and Stereoscopic Vision

Zago

Luzzago²,

Marangoni³

et al. 2020

Front. Bioeng. Biotechnol.

Self Cite

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“…A factor that could influence space-time parameters and gait kinematics is pain in walking ability after THA and therefore this could lengthen the LOS in hospital. 48 As for the results obtained under the guidance of the DMAIC through statistical tests and graphic representations, they show how in the total cost of the hospitalization category there is no statistically significant difference between cemented and uncemented, but what most influences the overall costs is the cost of the surgeon and in particular it has a greater influence on the cemented prosthetic approach. Similarly, for the surgical costs category there is no statistically significant difference between the two surgical approaches, but the material cost of surgery for an uncemented prosthesis and the cost of theatre surgery for a cemented prosthesis are the most influential.…”

Section: Discussionmentioning

confidence: 99%

Health technology assessment through Six Sigma Methodology to assess cemented and uncemented protheses in total hip arthroplasty

et al. 2021

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The purpose of this study is to use Health Technology Assessment (HTA) through the Six Sigma (SS) and DMAIC (Define, Measure, Analyse, Improve, Control) problem-solving strategies for comparing cemented and uncemented prostheses in terms of the costs incurred for Total hip arthroplasty (THA) and the length of hospital stay (LOS). Multinomial logistic regression analysis for modelling the data was also performed. Quantitative parameters extracted from gait analysis, electromyography and computed tomography images were used to compare the approaches, but the analysis did not show statistical significance. The variables regarding costs were studied with the Mann-Whitney and Kruskal-Wallis tests. No statistically significant difference between cemented and uncemented prosthesis for the total cost of LOS was found, but the cost of the surgeon had an influence on the overall expenses, affecting the cemented prosthetic approach. The material costs of surgery for the uncemented prosthesis and the cost of theatre of surgery for the cemented prosthesis were the most influential. Multinomial logistic regression identified the Vastus Lateralis variable as statistically significant. The overall accuracy of the model is 93.0%. The use of SS and DMAIC cycle as tools of HTA proved that the cemented and uncemented approaches for THA have similar costs and LOSy.

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“…Padovan et al (35) examined the effects of a new holistic approach on pain, fear of motion and quality of life in patients who underwent total hip arthroplasty, have evaluated the kinesiophobia with the Tampa Scale for Kinesiophobia and have found the experimental group's baseline TSK score as 30.6 and the control group as 36.53. Temporiti et al (36) examined the gait analysis after bilateral and unilateral total hip arthroplasty, and found that the TSK score of patients with unilateral arthroplasty was 36.4, and that of patients with bilateral arthroplasty was 34.1. In contrast to this study, the TSK scores of the patients with TKA in our study were higher.…”

Section: Discussionmentioning

confidence: 99%

Are kinesiophobia and functional performance related to ability to forget the artificial joint in patients with total hip arthroplasty?

Özçadırcı

Öztürk

Çağlar

et al. 2021

Clinical and Experimental Health Sciences

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The aim of this study was to investigate the relationship between kinesiophobia and functional performance with the ability to forgetthe artificial joint in patients with total hip arthroplasty (THA).Methods: Fifty-seven volunteer patients aged between 40-65 years who have undergone THA surgery in the last 1-3 years were included in this study. The Forgotten Joint Score (FJS-12) for evaluating the ability to forgetting the artificial joint, the 6-Minute Walk Test for determining the functional performance, and the Tampa Scale for Kinesiophobia (TSK) for evaluating kinesiophobia were used.Results: There was a moderate correlation between the FJS-12 and TSK (r= -0.571; p<0.001) scores; and moderate correlation between the FJS-12 and the 6-Minute Walk distances (6-MWD) (r= 0.408; p<0.001). The ability to forget the artificial joint in patients with THA was found to be related to kinesiophobia and functional performance. Conclusion:The results of this study demonstrated that the awareness of artificial joint should be taken into consideration when performing physiotherapy and rehabilitation practices to decrease kinesiophobia and increase functional performance. Additionally, complementary approaches aiming to reduce the awareness of artificial joint should be added to the rehabilitation program of the patients with total hip arthroplasty.

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Gait analysis in patients after bilateral versus unilateral total hip arthroplasty

Cited by 26 publications

References 33 publications

3D Tracking of Human Motion Using Visual Skeletonization and Stereoscopic Vision

3D Tracking of Human Motion Using Visual Skeletonization and Stereoscopic Vision

Health technology assessment through Six Sigma Methodology to assess cemented and uncemented protheses in total hip arthroplasty

Are kinesiophobia and functional performance related to ability to forget the artificial joint in patients with total hip arthroplasty?

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