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Article ; Online: GNRB® laximeter with magnetic resonance imaging in clinical practice for complete and partial anterior cruciate ligament tears detection: A prospective diagnostic study with arthroscopic validation on 214 patients.

Cojean, Théo / Batailler, Cécile / Robert, Henri / Cheze, Laurence

2023 Volume 42, Page(s) 373–381

Abstract: Background: Accurate diagnosis of anterior cruciate ligament (ACL) injury is not always obtained with magnetic resonance imaging (MRI). Other tools, such as the GNRB® arthrometer, help to accurately identify the type of ACL tear. The aim of this study ... ...

Abstract	Background: Accurate diagnosis of anterior cruciate ligament (ACL) injury is not always obtained with magnetic resonance imaging (MRI). Other tools, such as the GNRB® arthrometer, help to accurately identify the type of ACL tear. The aim of this study was to show that the GNRB® could be a relevant complementary solution to MRI in ACL injuries detection. Methods: A prospective study performed between 2016 and 2020 included 214 patients who had undergone knee surgery. The study compared sensitivity/specificity pairs of MRI and the GNRB® at 134 N to detect healthy ACL, partial and complete ACL tears. Arthroscopies were the 'gold standard'. Forty-six patients had a healthy ACL with associated knee lesions, 168 patients had ACL tears where 107 were complete tears and 61 were partial tears. Results: For healthy ACL, MRI scored 100% for sensitivity (SE) and 95% for specificity (SP), and the GNRB® scored SE 95.65% and SP 97.5% at 134 N. For complete ACL tears, MRI scored 80.81% for sensitivity (SE) and 64.49% for specificity (SP), and the GNRB® scored SE 77.78% and SP 85.98% at 134 N. For partial tears, MRI scored SE 29.51% and SP 88.97%, and the GNRB® scored SE 73.77% and SP 85.52% at 134 N. Conclusion: GNRB® sensitivity and specificity were equivalent to those of MRI for healthy ACL and complete ACL tear detection. However, MRI had some difficulty in detecting partial ACL tears compared with the GNRB® which showed better sensitivity.
MeSH term(s)	Humans ; Anterior Cruciate Ligament Injuries/diagnostic imaging ; Anterior Cruciate Ligament Injuries/surgery ; Prospective Studies ; Knee Joint/surgery ; Magnetic Resonance Imaging/methods ; Arthroscopy/methods ; Sensitivity and Specificity ; Rupture
Language	English
Publishing date	2023-05-10
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	1200476-5
ISSN	1873-5800 ; 0968-0160
ISSN (online)	1873-5800
ISSN	0968-0160
DOI	10.1016/j.knee.2023.03.017
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Zs.A 4043: Show issues

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Article ; Online: Measuring objective physical activity in people with chronic low back pain using accelerometers: a scoping review.

Berger, Mathilde / Bertrand, Anne Martine / Robert, Thomas / Chèze, Laurence

Frontiers in sports and active living

2023 Volume 5, Page(s) 1236143

Abstract: Purpose: Accelerometers can be used to objectively measure physical activity. They could be offered to people with chronic low back pain (CLBP) who are encouraged to maintain an active lifestyle. The aim of this study was to examine the use of ... ...

Abstract	Purpose: Accelerometers can be used to objectively measure physical activity. They could be offered to people with chronic low back pain (CLBP) who are encouraged to maintain an active lifestyle. The aim of this study was to examine the use of accelerometers in studies of people with CLBP and to synthesize the main results regarding the measurement of objective physical activity. Methods: A scoping review was conducted following Arksey and O'Malley's framework. Relevant studies were collected from 4 electronic databases (PubMed, Embase, CINHAL, Web of Science) between January 2000 and July 2023. Two reviewers independently screened all studies and extracted data. Results: 40 publications out of 810 citations were included for analysis. The use of accelerometers in people with CLBP differed across studies; the duration of measurement, physical activity outcomes and models varied, and several limitations of accelerometry were reported. The main results of objective physical activity measures varied and were sometimes contradictory. Thus, they question the validity of measurement methods and provide the opportunity to discuss the objective physical activity of people with CLBP. Conclusions: Accelerometers have the potential to monitor physical performance in people with CLBP; however, important technical limitations must be overcome.
Language	English
Publishing date	2023-11-01
Publishing country	Switzerland
Document type	Journal Article ; Review
ISSN	2624-9367
ISSN (online)	2624-9367
DOI	10.3389/fspor.2023.1236143
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Article ; Online: A Method to Estimate Horse Speed per Stride from One IMU with a Machine Learning Method.

Schmutz, Amandine / Chèze, Laurence / Jacques, Julien / Martin, Pauline

Sensors (Basel, Switzerland)

2020 Volume 20, Issue 2

Abstract: With the emergence of numerical sensors in sports, there is an increasing need for tools and methods to compute objective motion parameters with great accuracy. In particular, inertial measurement units are increasingly used in the clinical domain or the ...

Abstract	With the emergence of numerical sensors in sports, there is an increasing need for tools and methods to compute objective motion parameters with great accuracy. In particular, inertial measurement units are increasingly used in the clinical domain or the sports one to estimate spatiotemporal parameters. The purpose of the present study was to develop a model that can be included in a smart device in order to estimate the horse speed per stride from accelerometric and gyroscopic data without the use of a global positioning system, enabling the use of such a tool in both indoor and outdoor conditions. The accuracy of two speed calculation methods was compared: one signal based and one machine learning model. Those two methods allowed the calculation of speed from accelerometric and gyroscopic data without any other external input. For this purpose, data were collected under various speeds on straight lines and curved paths. Two reference systems were used to measure the speed in order to have a reference speed value to compare each tested model and estimate their accuracy. Those models were compared according to three different criteria: the percentage of error above 0.6 m/s, the RMSE, and the Bland and Altman limit of agreement. The machine learning method outperformed its competitor by giving the lowest value for all three criteria. The main contribution of this work is that it is the first method that gives an accurate speed per stride for horses without being coupled with a global positioning system or a magnetometer. No similar study performed on horses exists to compare our work with, so the presented model is compared to existing models for human walking. Moreover, this tool can be extended to other equestrian sports, as well as bipedal locomotion as long as consistent data are provided to train the machine learning model. The machine learning model's accurate results can be explained by the large database built to train the model and the innovative way of slicing stride data before using them as an input for the model.
MeSH term(s)	Accelerometry/methods ; Animals ; Equipment Design ; Gait/physiology ; Horses/physiology ; Machine Learning ; Signal Processing, Computer-Assisted
Language	English
Publishing date	2020-01-17
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2052857-7
ISSN	1424-8220 ; 1424-8220
ISSN (online)	1424-8220
ISSN	1424-8220
DOI	10.3390/s20020518
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Book: Kinematic analysis of human movement

Chèze, Laurence

(Focus bioengineering and health science series,)

2014

Author's details	Laurence Chèze
Series title	Focus bioengineering and health science series,
MeSH term(s)	Biomechanical Phenomena ; Movement/physiology
Language	English
Size	xii, 130 pages :, illustrations (black and white) ;, 25 cm.
Document type	Book
ISBN	9781848216105 ; 1848216106
Database	Catalogue of the US National Library of Medicine (NLM)

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Article ; Online: Changes in Relative Work of the Lower Extremity and Distal Foot Joints After Total Ankle Replacement: An Exploratory Study.

Deleu, Paul-Andre / Naaim, Alexandre / Bevernage, Bernhard Devos / Cheze, Laurence / Dumas, Raphael / Birch, Ivan / Besse, Jean-Luc / Leemrijse, Thibaut

IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society

2023 Volume 31, Page(s) 4376–4381

Abstract: Ankle osteoarthritis does not only led to lower ankle power generation, but also results in compensatory gait mechanics at the hip and Chopart joints. Much of previous work explored the relative work distribution after total ankle replacement (TAR) ... ...

Abstract	Ankle osteoarthritis does not only led to lower ankle power generation, but also results in compensatory gait mechanics at the hip and Chopart joints. Much of previous work explored the relative work distribution after total ankle replacement (TAR) either across the lower extremity joints where the foot was modelled as a single rigid unit or across the intrinsic foot joints without considering the more proximal lower limb joints. Therefore, this study aims, for the first time, to combine 3D kinetic lower limb and foot models together to assess changes in the relative joint work distribution across the foot and lower limb joints during level walking before and after patients undergo TAR. We included both patients and healthy control subjects. All patients underwent a three-dimensional gait analysis before and after surgery. Kinetic lower limb and multi-segment foot models were used to quantify all inter-segmental joint works and their relative contributions to the total lower limb work. Patients demonstrated a significant increase in the relative ankle positive joint work contribution and a significant decrease in the relative Chopart positive joint work contribution after TAR. Furthermore, there exists a large effect toward decreases in the relative contribution of the hip negative joint work after TAR. In conclusion, this study seems to corroborate the theoretical rationale that TAR reduces the compensatory strategy in the Chopart and hip joints in patients suffering from end-stage ankle osteoarthritis.
MeSH term(s)	Humans ; Arthroplasty, Replacement, Ankle ; Foot Joints ; Gait ; Lower Extremity ; Walking ; Ankle Joint ; Osteoarthritis/surgery ; Biomechanical Phenomena
Language	English
Publishing date	2023-11-08
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	1166307-8
ISSN	1558-0210 ; 1063-6528 ; 1534-4320
ISSN (online)	1558-0210
ISSN	1063-6528 ; 1534-4320
DOI	10.1109/TNSRE.2023.3328936
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Zs.A 4726: Show issues

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Article ; Online: Concomitant Triceps Surae Lengthening in Total Ankle Arthroplasty Affects the Mechanical Work at the Ankle Joint.

Deleu, Paul-André / Naaim, Alexandre / Chèze, Laurence / Dumas, Raphaël / Devos Bevernage, Bernhard / Birch, Ivan / Leemrijse, Thibaut / Besse, Jean-Luc

Foot & ankle international

2023 Volume 44, Issue 8, Page(s) 754–762

Abstract: Background: Previous studies have examined the effect of concomitant triceps surae lengthening on ankle dorsiflexion motion at the time of total ankle arthroplasty (TAA). As plantarflexor muscle-tendon structures are important for producing positive ... ...

Abstract	Background: Previous studies have examined the effect of concomitant triceps surae lengthening on ankle dorsiflexion motion at the time of total ankle arthroplasty (TAA). As plantarflexor muscle-tendon structures are important for producing positive ankle work during the propulsive phase of gait, caution should be exercised when lengthening triceps surae, as it may decrease plantarflexion strength. In order to develop an understanding of the work of the anatomical structures crossing the ankle during propulsion, joint work must be measured. The aim of this explorative study was to assess the effect of concomitant triceps surae lengthening with TAA on the resultant ankle joint work. Methods: Thirty-three patients were recruited to the study and divided into 3 groups of 11. The first group underwent both triceps surae lengthening (Strayer and TendoAchilles) and TAA (Achilles group), the second group underwent only TAA (Non-Achilles group), and the third group underwent only TAA, but had a greater radiographic prosthesis range of motion (Control group) compared to the first 2 groups. The 3 groups were matched in terms of demographic variables and walking speed. All patients underwent a 3D gait analysis 1 year after surgery to measure intersegmental joint work using a 4-segmented kinetic foot model. An analysis of variance (ANOVA) or Kruskal-Wallis test was used to compare the 3 groups. Results: The ANOVA showed significant differences between the 3 groups. Post hoc analyses suggested that (1) the Achilles group had less positive work at the ankle joint than the Non-Achilles and Control groups; (2) the Achilles group produced less positive work performed by all foot and ankle joints than the Control group; and (3) the Achilles and Non-Achilles groups absorbed less energy across all foot and ankle joints during the stance phase than the Control group. Conclusion: Concomitant triceps surae lengthening in TAA may reduce the positive work at the ankle joint. Level of evidence: Level III, retrospective comparative study.
MeSH term(s)	Humans ; Ankle Joint/surgery ; Ankle/surgery ; Retrospective Studies ; Muscle, Skeletal/surgery ; Arthroplasty, Replacement, Ankle ; Achilles Tendon/surgery
Language	English
Publishing date	2023-06-12
Publishing country	United States
Document type	Journal Article
ZDB-ID	1183283-6
ISSN	1944-7876 ; 1071-1007
ISSN (online)	1944-7876
ISSN	1071-1007
DOI	10.1177/10711007231176819
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Article ; Online: Cruciate-substituting and posterior-stabilised total knee arthroplasties had similar gait patterns in the short term.

Favroul, Clément / Batailler, Cécile / Naaim, Alexandre / Foissey, Constant / Kafelov, Moussa / Cheze, Laurence / Servien, Elvire / Lustig, Sébastien

Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA

2023 Volume 31, Issue 12, Page(s) 5398–5406

Abstract: Purpose: Surgeons want to achieve native kinematics in primary total knee arthroplasty (TKA). Cruciate-substituting (CS) implants could restore the knee kinematics more efficiently than posterior-stabilised (PS) TKA. This study aimed to compare gait ... ...

Abstract	Purpose: Surgeons want to achieve native kinematics in primary total knee arthroplasty (TKA). Cruciate-substituting (CS) implants could restore the knee kinematics more efficiently than posterior-stabilised (PS) TKA. This study aimed to compare gait patterns in patients with CS or PS TKA at 6 months. The hypothesis was that CS implants would demonstrate comparable gait parameters to PS implants at 6 months. Methods: In this prospective case-control study, 38 primary TKA without coronal laxity were divided into 2 groups: 19 cruciate-substituting (CS) and 19 posterior-stabilised (PS) implants. The type of prosthesis was determined according to the surgical period. Exclusion criteria were TKA revision, associated procedures and inability to walk on a treadmill. Gait analysis was conducted on a treadmill 6 months postoperatively for each patient with a knee assessment device (KneeKG®). Gait characteristics included analysis in three spatial dimensions (flexion-extension, abduction-adduction, internal-external rotation, anterior-posterior translation). Clinical outcomes (Knee Society Score and Forgotten Joint Score) were compared between both groups at 6 months postoperatively. Results: At 6 months, the gait analysis did not demonstrate any significant difference between CS and PS implants. The range and the maximum anteroposterior translation were similar in both groups (9.2 ± 6.5 mm in CS group vs. 8.1 ± 3 mm in PS group (n.s.); and - 5.2 ± 5 mm in CS group vs. - 6.3 ± 5.9 mm in PS group (n.s.), respectively). The internal/external rotation, the flexion, and the varus angle were similar between CS and PS implants. The KSS Knee score was higher at 6 months in the CS group than in the PS group (92.1 ± 5.6 vs. 84.8 ± 8.9 (p < 0.01)). Conclusion: Cruciate-substituting and posterior-stabilised TKA had similar gait patterns at 6 months postoperatively, despite a non-equivalent posterior stabilisation system. CS prostheses were an interesting option for primary TKA for knee kinematics restoration without requiring a femoral box. Level of evidence: Prospective, case-control study; Level II.
MeSH term(s)	Humans ; Arthroplasty, Replacement, Knee/methods ; Posterior Cruciate Ligament/surgery ; Case-Control Studies ; Knee Prosthesis ; Prosthesis Design ; Knee Joint/surgery ; Gait ; Range of Motion, Articular ; Biomechanical Phenomena ; Osteoarthritis, Knee/surgery
Language	English
Publishing date	2023-09-26
Publishing country	Germany
Document type	Journal Article
ZDB-ID	1159064-6
ISSN	1433-7347 ; 0942-2056
ISSN (online)	1433-7347
ISSN	0942-2056
DOI	10.1007/s00167-023-07594-7
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Article ; Online: No difference of gait parameters in patients with image-free robotic-assisted medial unicompartmental knee arthroplasty compared to a conventional technique: early results of a randomized controlled trial.

Batailler, Cécile / Lording, Timothy / Naaim, Alexandre / Servien, Elvire / Cheze, Laurence / Lustig, Sébastien

Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA

2021 Volume 31, Issue 3, Page(s) 803–813

MeSH term(s)	Humans ; Arthroplasty, Replacement, Knee/methods ; Robotic Surgical Procedures/methods ; Prospective Studies ; Osteoarthritis, Knee/surgery ; Knee Joint/surgery ; Gait ; Treatment Outcome ; Knee Prosthesis
Language	English
Publishing date	2021-04-11
Publishing country	Germany
Document type	Randomized Controlled Trial ; Journal Article
ZDB-ID	1159064-6
ISSN	1433-7347 ; 0942-2056
ISSN (online)	1433-7347
ISSN	0942-2056
DOI	10.1007/s00167-021-06560-5
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Book ; Conference proceedings: Papers from the 32nd congress of the Société de Biomécanique, Lyon, France, 28 - 29th August 2007

Cheze, Laurence

(Computer methods in biomechanics and biomedical engineering ; 8.2005, Suppl.1)

2007

Institution	Société de Biomécanique
Event/congress	Congress of the Société de Biomécanique (32, 2007.08.28-29, Lyon)
Author's details	guest ed. Laurence Cheze
Series title	Computer methods in biomechanics and biomedical engineering ; 8.2005, Suppl.1
Language	English
Size	194 S, Ill., graph. Darst
Publisher	Taylor & Francis
Publishing place	Abingdon
Document type	Book ; Conference proceedings
Database	Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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Article ; Online: Changes in ankle and foot kinematic after fixed-bearing total ankle replacement.

Deleu, Paul-André / Naaim, Alexandre / Chèze, Laurence / Dumas, Raphaël / Devos Bevernage, Bernhard / Birch, Ivan / Besse, Jean-Luc / Leemrijse, Thibaut

Journal of biomechanics

2022 Volume 136, Page(s) 111060

Abstract: Ankle osteoarthritis is a chronic debilitating disease marked by cartilage breakdown, pain and significant biomechanical impairment of the entire lower limb. Total ankle replacement (TAR) has been encouraged during the last decade as it has the potential ...

Abstract	Ankle osteoarthritis is a chronic debilitating disease marked by cartilage breakdown, pain and significant biomechanical impairment of the entire lower limb. Total ankle replacement (TAR) has been encouraged during the last decade as it has the potential to maintain the existing pre-operative ankle range of motion and to protect the more distally located joints of the foot. Three-dimensional gait analysis using a multi-segment foot model can provide an objective analysis of TAR for the treatment of end-stage ankle osteoarthritis. Thirty-six patients suffering from post-traumatic end-stage ankle osteoarthritis were evaluated before and after TAR. A four-segment kinematic foot model was used to calculate intrinsic foot joint kinematics during gait. Spatio-temporal parameters were also assessed. Kinematic results were compared to a control group of asymptomatic subjects. Differences in waveform patterns were mainly limited to dorsi-/plantarflexion inter-segment angles. At loading response, the Shank-Calcaneus plantarflexion angles as well as the Calcaneus-Midfoot dorsiflexion angle increased slightly in post-operative condition. During propulsion, an increase in Hallux-Metatarsus dorsiflexion angle was observed. Pain improved after surgery as supported by increased spatio-temporal parameters. While multi-segment foot and ankle kinematics were improved, they remained impaired compared to control values. This study confirms that TAR maintains the residual pre-operative range of motion after surgery from midstance to propulsion. Furthermore, the results suggest that the kinematic behavior of the foot joints distal to the affected ankle joint also improves post-operatively. The outcome of this study further emphasizes the clinical relevance of multi-segment foot modeling when assessing the outcome of TAR.
MeSH term(s)	Ankle ; Ankle Joint/surgery ; Arthroplasty, Replacement, Ankle ; Biomechanical Phenomena ; Gait/physiology ; Humans ; Osteoarthritis/surgery ; Pain ; Range of Motion, Articular/physiology
Language	English
Publishing date	2022-03-24
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	218076-5
ISSN	1873-2380 ; 0021-9290
ISSN (online)	1873-2380
ISSN	0021-9290
DOI	10.1016/j.jbiomech.2022.111060
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