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Ye Y, Wan Z, Liu B, Xu H, Wang Q, Ding T. Monitoring deterioration of knee osteoarthritis using vibration arthrography in daily activities. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2022; 213:106519. [PMID: 34826659 DOI: 10.1016/j.cmpb.2021.106519] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 11/02/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND AND OBJECTIVE Pathological recognition of knee joint using vibration arthrography (VAG) is increasingly becoming prevailed, due to the non-invasive and non-radiative benefits. However, knee joint health monitoring using VAG signals is a difficult problem, since VAG signals are contaminated by strong motion artifacts (MA) caused by knee movements during daily activities, such as squatting. So far few works have investigated this problem. Existing studies mainly focused on clinical diagnosis of knee disorders for 2-class (normal/abnormal) classification using VAG signals, which are less contaminated by MA in the scene when subjects perform knee extension and flexion movements in seated position. The purpose of this study is to propose a framework to monitor knee joint health during daily activities. METHODS In this paper, a general framework is designed to monitor knee joint health, which consists of VAG enhancement, feature extraction and fusion, and classification. VAG enhancement aims to remove MA and irrelevant components of knee joint pathologies in raw VAG signals. Distinctive features from enhanced VAG signals are obtained in feature extraction and fusion. Classification can not only distinguish whether the knee joint is normal or abnormal, but also distinguish the grade of deterioration of knee osteoarthritis. RESULTS 813 VAG signals from VAG-OA dataset, which is currently the largest VAG dataset, have been collected from medical cases in Xijing Hospital of the Fourth Military Medical University during daily activities. Experimental results on VAG-OA dataset showed that the accuracy of 2-class (normal/abnormal) classification was 95.9% with sensitivity 98.1% and specificity 93.3%. For 5-class classification based on deterioration grades of osteoarthritis (OA), we obtained accuracy 74.4%, sensitivity 52.6% and specificity 78.3%. CONCLUSION The VAG-OA dataset can be used not only for knee joint health monitoring but also for clinical diagnosis. The designed framework on VAG-OA dataset has high classification accuracy, which is of great value to monitor knee joint health using VAG signals during daily activities. The results also demonstrate that the designed framework significantly outperforms the baselines and several state-of-the-art methods.
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Affiliation(s)
- Yalan Ye
- School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Zhengyi Wan
- School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Benyuan Liu
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, 710032, Shaanxi, P. R. China
| | - Hu Xu
- Xijing Orthopaedics Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, P. R. China
| | - Qian Wang
- 705th Research Institute, China Shipbuilding Industry Corporation, Xi'an, 710065, Shaanxi, P. R. China
| | - Tan Ding
- Xijing Orthopaedics Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, P. R. China.
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Effects of Immobilization and Re-Mobilization on Knee Joint Arthrokinematic Motion Quality. J Clin Med 2020; 9:jcm9020451. [PMID: 32041248 PMCID: PMC7074294 DOI: 10.3390/jcm9020451] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 01/18/2020] [Accepted: 02/05/2020] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Knee immobilization is a common intervention for patients with traumatic injuries. However, it usually leads to biomechanical/morphological disturbances of articular tissues. These changes may contribute to declining kinetic friction-related quality of arthrokinematics; however, this phenomenon has not been analyzed in vivo and remains unrecognized. Thus, the aim of the present study is to investigate the effect of immobilization and subsequent re-mobilization on the quality of arthrokinematics within the patellofemoral joint, analyzed by vibroarthrography (VAG). METHODS Thirty-four patients after 6-weeks of knee immobilization and 37 controls were analyzed. The (VAG) signals were collected during knee flexion/extension using an accelerometer. Patients were tested on the first and last day of the 2-week rehabilitation program. RESULTS Immobilized knees were characterized by significantly higher values of all VAG parameters when compared to controls (p < 0.001) on the first day. After 2 weeks, the participants in the rehabilitation program that had immobilized knees showed significant improvement in all measurements compared to the baseline condition, p < 0.05. However, patients did not return to normal VAG parameters compared to controls. CONCLUSION Immobilization-related changes within the knee cause impairments of arthrokinematic function reflected in VAG signal patterns. The alterations in joint motion after 6 weeks of immobilization may be partially reversible; however, the 2-week physiotherapy program is not sufficient for full recovery.
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Development of an Impulse Response Method for Assessing Knee Osteoarthritis at the Femorotibial Joint: Comparison Between Healthy Young Adults and Older Women with Clinical Knee Osteoarthritis. J Med Biol Eng 2019. [DOI: 10.1007/s40846-019-00484-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Hollander DB, Yoshida S, Tiwari U, Saladino A, Nguyen M, Boudreaux B, Hadley B. Dynamic Analysis of Vibration, Muscle Firing, and Force as a Novel Model for Non-Invasive Assessment of Joint Disruption in the knee: A Multiple Case Report. Open Neuroimag J 2018. [DOI: 10.2174/1874440001812010120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
We present a new method for understanding knee pathology through non-invasive techniques. The combination of electromyography (EMG), vibroarthrographic (VAG), and force analysis in proposed to examine the force transfer between unhealthy and healthy knees. A multiple case report is presented to demonstrate the technique and its potential application for future study. The comparison of four individuals’ knee characteristics will be explained using this innovative methodology.
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Ota S, Ando A, Tozawa Y, Nakamura T, Okamoto S, Sakai T, Hase K. Preliminary study of optimal measurement location on vibroarthrography for classification of patients with knee osteoarthritis. J Phys Ther Sci 2016; 28:2904-2908. [PMID: 27821959 PMCID: PMC5088150 DOI: 10.1589/jpts.28.2904] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 07/07/2016] [Indexed: 11/24/2022] Open
Abstract
[Purpose] The aims of the present study were to investigate the most suitable location
for vibroarthrography measurements of the knee joint to distinguish a healthy knee from
knee osteoarthritis using Wavelet transform analysis. [Subjects and Methods] Participants
were 16 healthy females and 17 females with severe knee osteoarthritis. Vibroarthrography
signals were measured on the medial and lateral epicondyles, mid-patella, and tibia using
stethoscopes with a microphone while subjects stood up from a seated position. Frequency
and knee flexion angles at the peak wavelet coefficient were obtained. [Results] Peak
wavelet coefficients at the lateral condyle and tibia were significantly higher in
patients with knee osteoarthritis than in the control group. Knee joint angles at the peak
wavelet coefficient were smaller (more extension) in the osteoarthritis group compared to
the control group. The area under the receiver operating characteristic curve on tibia
assessment with the frequency and knee flexion angles was higher than at the other
measurement locations (both area under the curve: 0.86). [Conclusion] The tibia is the
most suitable location for classifying knee osteoarthritis based on vibroarthrography
signals.
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Affiliation(s)
- Susumu Ota
- Department of Rehabilitation and Care, Seijoh University: 2-172 Fukinodai, Tokai, Aichi 476-8588, Japan
| | - Akiko Ando
- Department of Physical Therapy, School of Health Sciences, Nagoya University, Japan
| | - Yusuke Tozawa
- Department of Mechanical Engineering, Graduate School of Science and Engineering, Tokyo Metropolitan University, Japan
| | - Takuya Nakamura
- Department of Physical Therapy, School of Health Sciences, Nagoya University, Japan
| | - Shogo Okamoto
- Department of Mechanical Sciences and Engineering, Graduate School of Engineering, Nagoya University, Japan
| | - Takenobu Sakai
- Graduate School of Science and Engineering, Saitama University, Japan
| | - Kazunori Hase
- Department of Mechanical Engineering, Graduate School of Science and Engineering, Tokyo Metropolitan University, Japan
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Wu Y, Chen P, Luo X, Huang H, Liao L, Yao Y, Wu M, Rangayyan RM. Quantification of knee vibroarthrographic signal irregularity associated with patellofemoral joint cartilage pathology based on entropy and envelope amplitude measures. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2016; 130:1-12. [PMID: 27208516 DOI: 10.1016/j.cmpb.2016.03.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 03/12/2016] [Accepted: 03/16/2016] [Indexed: 06/05/2023]
Abstract
BACKGROUND AND OBJECTIVE Injury of knee joint cartilage may result in pathological vibrations between the articular surfaces during extension and flexion motions. The aim of this paper is to analyze and quantify vibroarthrographic (VAG) signal irregularity associated with articular cartilage degeneration and injury in the patellofemoral joint. METHODS The symbolic entropy (SyEn), approximate entropy (ApEn), fuzzy entropy (FuzzyEn), and the mean, standard deviation, and root-mean-squared (RMS) values of the envelope amplitude, were utilized to quantify the signal fluctuations associated with articular cartilage pathology of the patellofemoral joint. The quadratic discriminant analysis (QDA), generalized logistic regression analysis (GLRA), and support vector machine (SVM) methods were used to perform signal pattern classifications. RESULTS The experimental results showed that the patients with cartilage pathology (CP) possess larger SyEn and ApEn, but smaller FuzzyEn, over the statistical significance level of the Wilcoxon rank-sum test (p<0.01), than the healthy subjects (HS). The mean, standard deviation, and RMS values computed from the amplitude difference between the upper and lower signal envelopes are also consistently and significantly larger (p<0.01) for the group of CP patients than for the HS group. The SVM based on the entropy and envelope amplitude features can provide superior classification performance as compared with QDA and GLRA, with an overall accuracy of 0.8356, sensitivity of 0.9444, specificity of 0.8, Matthews correlation coefficient of 0.6599, and an area of 0.9212 under the receiver operating characteristic curve. CONCLUSIONS The SyEn, ApEn, and FuzzyEn features can provide useful information about pathological VAG signal irregularity based on different entropy metrics. The statistical parameters of signal envelope amplitude can be used to characterize the temporal fluctuations related to the cartilage pathology.
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Affiliation(s)
- Yunfeng Wu
- School of Information Science and Technology, Xiamen University, 422 Si Ming South Road, Xiamen, Fujian 361005, China; Fujian Key Laboratory of Sensing and Computing for Smart City, Xiamen University, 422 Si Ming South Road, Xiamen, Fujian 361005, China.
| | - Pinnan Chen
- School of Information Science and Technology, Xiamen University, 422 Si Ming South Road, Xiamen, Fujian 361005, China
| | - Xin Luo
- School of Information Science and Technology, Xiamen University, 422 Si Ming South Road, Xiamen, Fujian 361005, China
| | - Hui Huang
- Department of Rehabilitation, Xiamen University Affiliated Zhongshan Hospital, 201 Hubin South Road, Xiamen, Fujian 361004, China
| | - Lifang Liao
- School of Information Science and Technology, Xiamen University, 422 Si Ming South Road, Xiamen, Fujian 361005, China
| | - Yuchen Yao
- School of Information Science and Technology, Xiamen University, 422 Si Ming South Road, Xiamen, Fujian 361005, China
| | - Meihong Wu
- School of Information Science and Technology, Xiamen University, 422 Si Ming South Road, Xiamen, Fujian 361005, China
| | - Rangaraj M Rangayyan
- Department of Electrical and Computer Engineering, Schulich School of Engineering, University of Calgary, Calgary, AB T2N 1N4, Canada
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Ishikawa S, Okamoto S, Akiyama Y, Isogai K, Yamada Y. Simulated crepitus and its reality-based specification using wearable patient dummy. Adv Robot 2015. [DOI: 10.1080/01691864.2014.1002530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Bączkowicz D, Majorczyk E. Joint motion quality in vibroacoustic signal analysis for patients with patellofemoral joint disorders. BMC Musculoskelet Disord 2014; 15:426. [PMID: 25496721 PMCID: PMC4295352 DOI: 10.1186/1471-2474-15-426] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Accepted: 12/05/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Chondromalacia, lateral patellar compression syndrome and osteoarthritis are common patellofemoral joint disorders leading to functional and/or structural disturbances in articular surfaces. The objective of the study was to evaluate their impact on joint motion quality via the vibroacoustic signal generated during joint movement analysis. METHODS Seventy-three patients (30 with chondromalacia, 21 with lateral patellar compression syndrome, and 22 with osteoarthritis) and 32 healthy controls were tested during flexion/extension knee motion for vibroacoustic signals using an acceleration sensor. Estimated parameters: variation of mean square (VMS), difference between mean of four maximum and mean of four minimum values (R4), power spectral density for frequency of 50-250 Hz (P1) and 250-450 Hz (P2) were analyzed. RESULTS Vibroacoustic signals recorded for particular disorders were characterized by significantly higher values of parameters in comparison to the control group. Moreover, differences were found among the various types of patellofemoral joint disturbances. Chondromalacia and osteoarthritis groups showed differences in all parameters examined. In addition, osteoarthritis patients exhibited differences in VMS, P1 and P2 values in comparison to lateral patellar compression syndrome patients. However, only the value of R4 was found to differ between knees with lateral patellar compression syndrome and those with chondromalacia. CONCLUSION Our results suggest that particular disorders are characterized by specific vibroacoustic patterns of waveforms as well as values of analyzed parameters.
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Affiliation(s)
- Dawid Bączkowicz
- Institute of Physiotherapy, Faculty of Physical Education and Physiotherapy, Opole University of Technology, Prószkowska Street 76, PL-45-758 Opole, Poland.
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