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Relevant bibliographies by topics / Pivot rotatoire

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Academic literature on the topic 'Pivot rotatoire'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 February 2022

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Journal articles on the topic "Pivot rotatoire"

1

Guenoun, B., L. Latargez, M. Freslon, G. Defossez, N. Salas, and L. E. Gayet. "Complication des arthroplasties par prothèses totales de genou à pivot rotatoire Endo-Modell (Link®)." Revue de Chirurgie Orthopédique et Traumatologique 95, no. 7 (November 2009): 634–41. http://dx.doi.org/10.1016/j.rcot.2009.09.018.

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Guenoun, B., L. Latargez, M. Freslon, G. Defossez, N. Salas, and L. E. Gayet. "Résultats fonctionnels des prothèses totales du genou à pivot rotatoire Endo-Modell (Link®) à moyen terme et étude de ses facteurs prédictifs." Revue de Chirurgie Orthopédique et Réparatrice de l'Appareil Moteur 94, no. 4 (June 2008): 70. http://dx.doi.org/10.1016/j.rco.2008.03.024.

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Houfani, Fayçal, Didier Mainard, Brice Rubens-Duval, Pierre-Emmanuel Papin, Gilles Pasquier, and Matthieu Ehlinger. "Prothèses charnières à pivot rotatoire dans les reprises aseptiques d’arthroplastie de genou : étude rétrospective multicentrique de 127 cas à 5 ans de recul moyen." Revue de Chirurgie Orthopédique et Traumatologique 107, no. 3 (May 2021): 333–40. http://dx.doi.org/10.1016/j.rcot.2021.02.011.

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Matsumoto, H., and B. B. Seedhom. "Rotation of the Tibia in the Normal and Ligament-Deficient Knee. A study Using Biplanar Photography." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 207, no. 3 (September 1993): 175–84. http://dx.doi.org/10.1243/pime_proc_1993_207_290_02.

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The difference between physiological tibial rotation and rotatory instability of the knee, particularly the ‘pivot shift’ phenomenon, was investigated by analysing knee movements under both rotatory and valgus torques using 29 fresh cadaveric knees. The knee movements were measured in three dimensions using biplanar photography, when all ligaments were intact, and then after the ligaments were sequentially sectioned. The axis of the physiological tibial rotation was shown to be located about the centre of the tibial plateaux, while that of the pivot shift is located about the medial collateral ligament (MCL). When the anterior cruciate ligament (ACL) was sectioned, little or no significant change in physiological tibial rotation was observed under rotary torques, while a significant rotatory instability, including the ‘pivot shift’ phenomenon, was observed under a valgus torque. It was thus concluded that the rotatory instability is not simply an increase in the magnitude of the physiological rotation of the tibia, but is an abnormal tibial rotation which occurs with a different mechanism.

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Tashiro, Yasutaka, Ken Okazaki, Hiromasa Miura, Shuichi Matsuda, Takefumi Yasunaga, Makoto Hashizume, Yoshitaka Nakanishi, and Yukihide Iwamoto. "Quantitative Assessment of Rotatory Instability after Anterior Cruciate Ligament Reconstruction." American Journal of Sports Medicine 37, no. 5 (March 4, 2009): 909–16. http://dx.doi.org/10.1177/0363546508330134.

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Background Anterior cruciate ligament reconstruction successfully reduces anterior knee instability, but its effect on rotatory stability is not fully understood. In addition, a definitive method for the quantitative evaluation of rotatory instability remains to be established. Hypothesis Measurement of anterolateral tibial translation by open magnetic resonance imaging could positively correlate with the clinical grading of the pivot-shift test and would clarify residual rotatory abnormalities not shown by conventional methods for measurement of anterior stability. Study Design Controlled laboratory study. Methods An anterior cruciate ligament—reconstructed group (n = 21) and an anterior cruciate ligament—deficient group (n = 20) were examined using a Slocum anterolateral rotatory instability test in open magnetic resonance imaging. Anterior tibial translation was measured at the medial and lateral compartments by evaluating sagittal images. Clinical knee stability was evaluated before the above measurement using the pivot-shift test, KT-2000 arthrometer, and stress radiography. A cutoff value for anterolateral tibial translation relating to pivot-shift was determined using a receiver operating characteristic curve. Results Side-to-side differences of anterolateral tibial translation correlated with clinical grade of the pivot-shift test and stress radiography but not with KT-2000 arthrometry in both groups. The cutoff value was established as 3.0 mm. Although the mean anterolateral translation showed no difference, 9 reconstructed knees revealed greater than 3 mm of anterolateral tibial translation, whereas only 3 uninjured knees did. Conclusion Measurement using an open magnetic resonance imaging successfully quantified the remaining rotatory instability in anterior cruciate ligament—reconstructed knees. Clinical Relevance This method is a useful means for quantifying anterior cruciate ligament function to stabilize tibial rotation.

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Ueki, Hiroko, Hiroki Katagiri, Koji Otabe, Yusuke Nakagawa, Toshiyuki Ohara, Mikio Shioda, Yuji Kohno, Takashi Hoshino, Ichiro Sekiya, and Hideyuki Koga. "Contribution of Additional Anterolateral Structure Augmentation to Controlling Pivot Shift in Anterior Cruciate Ligament Reconstruction." American Journal of Sports Medicine 47, no. 9 (June 18, 2019): 2093–101. http://dx.doi.org/10.1177/0363546519854101.

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Background: Several types of anterolateral structure (ALS) augmentation procedures in anterior cruciate ligament (ACL) reconstruction have been reported. However, information is limited regarding the effect of additional ALS augmentation on rotatory stability in a clinical setting. Purpose/Hypothesis: This study aimed to investigate the contribution of additional ALS augmentation in ACL reconstruction in cases with a high risk of residual pivot shift. The 2 hypotheses were as follows. First, additional ALS augmentation would improve rotatory stability as compared with solely reconstructing the ACL. Second, graft tension changes would be different between the ACL and ALS during knee range of motion and against anterior or rotatory loads. Study Design: Controlled laboratory study. Methods: Fifteen patients who met at least 1 of the following criteria were included: (1) revision ACL reconstruction, (2) preoperative high-grade pivot shift, or (3) hyperextended knee. The pivot-shift test was performed preoperatively and during surgery after ACL reconstruction and after additional ALS augmentation with acceleration measurements from a triaxial accelerometer. The tension changes of the ACL and ALS grafts were also measured during knee range of motion and against manual maximum anterior tibial translation, internal rotation, and external rotation. Results: After ACL reconstruction, the pivot-shift acceleration was still greater than that of the uninjured knee. However, additional ALS augmentation further reduced acceleration when compared with ACL reconstruction alone in both primary and revision cases ( P < .05 vs preoperative, P < .05 vs ACL). During knee flexion-extension, the tension of the ACL increased as the knee was extended, whereas that of the ALS did not change. Graft tension of the ACL and ALS became higher with internal rotation and lower with external rotation as compared with the neutral position. Tension of the ACL was significantly increased against anterior tibial translational loads, whereas that of the ALS was not. Conclusion: Additional ALS augmentation further improved the rotatory stability during ACL reconstruction in patients with a high risk of residual pivot shift at the time of surgery. Significant differences in graft tension changes were also observed between the ACL and ALS against different loads. Additional ALS augmentation may be considered to eliminate the pivot shift in patients with a high risk of residual pivot shift.

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Musahl, Volker, Yuichi Hoshino, Roland Becker, and Jon Karlsson. "Rotatory knee laxity and the pivot shift." Knee Surgery, Sports Traumatology, Arthroscopy 20, no. 4 (December 24, 2011): 601–2. http://dx.doi.org/10.1007/s00167-011-1844-y.

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Zaffagnini, Stefano, Cecilia Signorelli, Alberto Grassi, Yuichi Hoshino, Ryosuke Kuroda, Darren de SA, David Sundemo, et al. "Anatomic Anterior Cruciate Ligament Reconstruction Using Hamstring Tendons Restores Quantitative Pivot Shift." Orthopaedic Journal of Sports Medicine 6, no. 12 (December 1, 2018): 232596711881236. http://dx.doi.org/10.1177/2325967118812364.

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Background: It is still uncertain how surgical reconstruction of the anterior cruciate ligament (ACL) is able to restore rotatory laxity of the involved joint. The desired amount of restraint applied by the ACL graft, as compared with the healthy knee, has not been fully clarified. Purpose: To quantify the ability of single-bundle anatomic ACL reconstruction using hamstring tendons in reducing the pivot-shift phenomenon immediately after surgery under anesthesia. Study Design: Case series; Level of evidence, 4. Methods: An inertial sensor and image analysis were used at 4 international centers to measure tibial acceleration and lateral compartment translation of the knee, respectively. The standardized pivot-shift test was quantified in terms of the side-to-side difference in laxity both preoperatively and postoperatively with the patient under anesthesia. The reduction in both tibial acceleration and lateral compartment translation after surgery and the side-to-side difference were evaluated using the Wilcoxon signed-rank test. Alpha was set at P < .05. Results: A total of 107 patients were recruited for the study, and data were available for 89 patients. There was a statistically significant reduction in quantitative rotatory knee laxity between preoperatively (inertial sensor, 2.55 ± 4.00 m/s2; image analysis, 2.04 ± 2.02 mm) and postoperatively (inertial sensor, –0.54 ± 1.25 m/s2; image analysis, –0.10 ± 1.04 mm) between the involved and healthy joints, as measured by the 2 devices ( P < .001 for both). Postoperatively, both devices detected a lower rotatory laxity value in the involved joint compared with the healthy joint (inertial sensor, 2.45 ± 0.89 vs 2.99 ± 1.10 m/s2, respectively [ P < .001]; image analysis, 0.99 ± 0.83 vs 1.09 ± 0.92 mm, respectively [ P = .38]). Conclusion: The data from this study indicated a significant reduction in the pivot shift when compared side to side. Both the inertial sensor and image analysis used for the quantitative assessment of the pivot-shift test could successfully detect restoration of the pivot shift after anatomic single-bundle ACL reconstruction. Future research will examine how pivot-shift control is maintained over time and correlation of the pivot shift with return to full activity in patients with an ACL injury.

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Sheean, Andrew J., Jayson Lian, Sean J. Meredith, Robert Tisherman, Andrew D. Lynch, Volker Musahl, and Bryson P. Lesniak. "Lateral Extra-Articular Tenodesis Does Not Affect Rotatory Knee Instability in Anatomic ACL Reconstruction." Orthopaedic Journal of Sports Medicine 7, no. 7_suppl5 (July 2019): 2325967119S0029. http://dx.doi.org/10.1177/2325967119s00295.

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Objectives: Single-bundle, anatomic anterior cruciate ligament reconstruction (ACLR) may not fully restore rotatory knee stability, and the addition of a lateral extra-articular tenodesis (LET) has been proposed as means for reducing residual rotatory knee instability. However, the magnitude of the in vivo, time zero effects of these procedures on rotatory knee instability remain poorly defined. The pivot shift test is used to assess for rotatory knee instability; however, it is a subjective grading system with limited generalizability and ability to predict clinical outcomes. Consequently, a quantified pivot shift (QPS) test software application, PIVOT iPad, has been developed and validated to measure the magnitude of rotatory knee laxity. The objective of this study was use intraoperative QPS (iQPS) to assess for differences in residual rotatory knee instability after ACLR versus ACLR augmented with lateral extra-articular tenodesis (ACLR + LET.) Methods: During examination under anesthesia (EUA), QPS was performed on both the operative and non-operative knees prior to ACLR (Figure 1A) Three, yellow ¾ inch markers were attached to skin overlying bony landmarks: lateral epicondyle, Gerdy’s tubercle and 3 cm posterior to Gerdy’s tubercle. The PIVOT software application was used to measure lateral compartment translation (Figure 1B) ACLR were randomly augmented with a LET if the lateral compartment translation measured during QPS was greater than or equal to double the amount of lateral compartment translation measured for the unaffected knee. iQPS measurements were subsequently performed after either ACLR or ACLR + LET with sterile markers (Figure 1C) iQPS data were recorded and compared to both the preoperative QPS measurements of the affected and unaffected knees. Based upon normative QPS data established from a database of >150 previously performed ACLR at our institution, it was determined that 8 patients in each group would be required to achieve 80% power with an effect size of 1.2 mm and an alpha level of 0.05. Post-procedure iQPS data were compared to preoperative QPS measurements with paired samples t-tests. Results: iQPS measurements were performed in 20 ACLR (10 ACLR and 10 ACLR + LET). The mean age in the cohort was 17.3 years old (range: 17-24 years old.). Both ACLR and ACLR + LET resulted in significant decreases in rotatory knee instability when compared to preoperative QPS measurements (pre-ACLR: 4.7 ± 1.9 v. post-ACLR: 1.3 ± 0.70, P < 0.001; pre-ACLR +LET: 3.6 ± 1.8 v. post-ACLR + LET: 0.9 ± 0.5, P < 0.001.) When comparing isolated ACLR to ACLR + LET, no significant differences were observed in the magnitude of change in iQPS between the pre and post-intervention states (ACLR: - 3.5 ± 1.6 mm v. ACLR + LET: -1.5 ± 3.1 mm, P = N.S.) Furthermore, there were no significant differences in lateral compartment translation between the operative knees and non-operative knees (ACLR: -0.1 ± 0.9 mm v. ACLR + LET: -0.5 ± 1.0 mm, P = N.S.), suggesting that neither ACLR nor ACLR + LET led to over-constrained kinematics. Conclusion: In this randomized control study, both ACLR and ACLR + LET resulted in significant decreases in rotatory knee instability. However, there were no significant differences in time-zero, rotatory knee instability detected between isolated ACLR versus ACLR combined with LET in patients. The utility of combining a LET with ACLR remains unclear, and future research is necessary to refine the indications for LET in patients with high-grade rotatory knee instability.

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Sheean, Andrew J., Jayson Lian, Robert Tisherman, Sean J. Meredith, Darren de SA, Andrew Lynch, Bryson P. Lesniak, and Volker Musahl. "Augmentation of Anatomic Anterior Cruciate Ligament Reconstruction With Lateral Extra-articular Tenodesis Does Not Significantly Affect Rotatory Knee Laxity: A Time Zero, In Vivo Kinematic Analysis." American Journal of Sports Medicine 48, no. 14 (November 11, 2020): 3495–502. http://dx.doi.org/10.1177/0363546520966624.

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Background: The pivot-shift test is used to assess for rotatory knee laxity in the anterior cruciate ligament (ACL)-deficient knee and ACL-reconstructed knee; however, the pivot shift uses a subjective grading system that is limited by variability between examiners. Consequently, quantified pivot shift (QPS) test software (PIVOT iPad application) has been developed and validated to measure the magnitude of rotatory knee laxity during the positive pivot-shift test. Purpose: To employ intraoperative QPS (iQPS) to assess for differences in residual rotatory knee laxity after ACL reconstruction (ACLR) versus ACLR augmented with lateral extra-articular tenodesis (ACLR + LET), and to employ iQPS to determine if ACLR and/or ACLR + LET result in overconstrained knee kinematics when compared with the contralateral knee. Study Design: Cohort study; Level of evidence, 2. Methods: iQPS was performed in 20 patients by a single surgeon on both the operative and contralateral knees before ACLR. ACLR was augmented with a LET if the lateral compartment tibial translation measured during QPS was greater than or equal to double the amount of lateral tibial compartment translation measured for the contralateral knee. After each reconstruction (ACLR or ACLR + LET), iQPS measurements were performed. iQPS data were compared with the preoperative QPS measurements of the operative and contralateral knees. Postoperative iQPS data were compared with both the preoperative QPS measurements of the operative and contralateral knees with paired samples t tests. Categorical variables were compared using the Fisher exact test. Results: The mean age in the cohort was 17.3 years (range, 15-24 years). There were no significant differences between the groups in terms of the proportion of male patients (ACLR: 5 male, 5 female vs ACLR + LET: 4 male, 6 female) or age (ACLR: 17.7 ± 3.3 years; 95% CI, 15.4-24.0 vs ACLR + LET: 16.8 ± 2.8 years, 95% CI, 14.8-22.0; P = .999). There were no significant differences between the groups with respect to preoperative QPS performed during examination under anesthesia (ACLR: 4.7 ± 2.0 mm; 95% CI, 3.3-6.1 vs ACLR + LET: 3.6 ± 1.8 mm; 95% CI, 2.3-4.9; P = .2). Both ACLR and ACLR + LET resulted in significant decreases in rotatory knee laxity when compared with preoperative QPS measurements (ACLR: –3.4 ± 1.7 mm; 95% CI, −4.6 to −2.2; P < .001: ACLR + LET: –2.6 ± 1.9 mm; 95% CI, −3.9 to −1.3; P < .002). Moreover, when compared with isolated ACLR, ACLR + LET did not result in a significantly smaller magnitude of change in iQPS between the pre- and postoperative states ( P = .3). Conclusion: Both ACLR and ACLR + LET resulted in significant decreases in rotatory knee laxity. The augmentation of ACLR with LET did not change the constraint of the knee with respect to lateral compartment translation as measured during iQPS.

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Dissertations / Theses on the topic "Pivot rotatoire"

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ASSOR, MICHEL. "Protheses a pivot rotatoire du genou : etude mecanique, clinique et perspectives d'avenir ; a propos de 77 cas." Aix-Marseille 2, 1988. http://www.theses.fr/1988AIX20522.

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Le, Cloue͏̈rec Gérard. "Physiopathologie des descellements aseptiques d'arthroplasties du genou de type Sheehan : technique chirurgicale de révision utilisant la prothèse à pivot rotatoire Waldemar-Link." Bordeaux 2, 1995. http://www.theses.fr/1995BOR23092.

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Ager, Amanda. "The effectiveness of an upper extremity neuromuscular training program on the shoulder function of military members with a rotator cuff tendinopathy : a pilot randomized controlled trial." Master's thesis, Université Laval, 2018. http://hdl.handle.net/20.500.11794/30269.

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INTRODUCTION: La tendinopathie de la coiffe des rotateurs (TCR) entraine au quotidien des douleurs et faiblesses musculaires et une diminution du contrôle moteur à l'épaule. OBJECTIFS: Les objectifs de cette étude étaient i) d'effectuer une revue de littérature pour identifier les méthodes de quantification de la proprioception de l'épaule utilisées en laboratoire et en clinique et d’en présenter les qualités métrologiques, ii) d'évaluer l'efficacité d’un programme d’entrainement neuro-musculaire en comparant son efficacité à réduire la douleur à l’épaule et en améliorer la fonction à celle obtenue par des soins usuels de physiothérapie. MÉTHODES: i) Une revue de 5 bases de données a été conduite d’octobre 2015 à juillet 2016 pour documenter les propriétés métrologiques de protocoles d’évaluation de la proprioception à l'épaule. Les études incluses ont été évaluées à l'aide de l’outil de contrôle QualSyst et de l'échelle COSMIN à 4 points. ii) Trente-trois soldats en service actif au sein des Forces armées canadiennes ont été assignés au hasard à 1) programme standardisé supervisé d’entrainement neuromusculaire et contrôle moteur (Exp) ou à 2) soins usuels de physiothérapie (Ctl). Les variables principales étaient les symptômes, la capacité fonctionnelle et les limitations physiques évalués avec le questionnaire Disabilities of the Arm, Shoulder and Hand (DASH) et la variable secondaire était l'indice Western Ontario Rotator Cuff (WORC). Toutes les variables ont été mesurées au départ (T0) et à 6 (T6) et 12 (T12) semaines après l'intervention. La comparaison des effets des interventions a été évaluée à l'aide d’une analyse per protocole (APP), analyse intention-traitement (AIT) et avec une analyse de variance à mesures répétées à 2 voies. RÉSULTATS: i) Vingt et une études (n = 407 participants, 553 épaules) ont été retenues. Les études analysées confirment d'excellents scores méthodologiques avec l’outil QualSyst (88,1 ± 9,9%) et de bons scores avec le COSMIN pour la fidélité (71,1%) et un score de qualité modérée à faible (50%) pour la validité de critère. Les coefficients de corrélation intraclasse (CCI) pondérés pour la fidélité intraévaluateur étaient les plus élevés pour le sens du positionnement articulaire passif et la kinesthésie soit 0,92 ± 0,07 (n = 214) et 0,92 ± 0,04 (n = 74), respectivement. Le mouvement et l'outil les plus fidèles sont la rotation interne à 90 ° d'abduction (CCI = 0,88 ± 0,01 (n = 53)) et le dynamomètre (CCI = 0,92 ± 0,88 (n = 225)). Aucune étude n’a rapporté d’indices de sensibilité au changement. ii) Aucune interaction significative (p ≥ 0,101) de groupe × temps (p ≥ 0,101) n'a été démontrée. Par contre, nous avons observé un effet de temps significatif (p <0,001) pour le questionnaire DASH et l'indice WORC. CONCLUSION: Ces données préliminaires suggèrent que les deux approches proposées conduisent à des améliorations comparables. L'utilisation d'une intervention de groupe axée sur l'exercice a le potentiel d'être aussi efficace qu'une approche un à un plus exigeante en terme de temps de traitement. Ces résultats permettront de fournir aux cliniciens des lignes directrices pour la mesure de la proprioception à l'épaule et l’utilisation d’une approche novatrice de traitement en groupe pour la TCR. Mots clés : Épaule, tendinopathie, contrôle moteur, proprioception, programme d'exercices, soins en physiothérapie
INTRODUCTION: The shoulder is the most mobile joint of the body which means that it heavily relies of an important level of neuromuscular control at all times. A rotator cuff (RC) complex provides stability to the shoulder and often times falls victim to injury, which can produce functional limitations during activities of daily living and work tasks. Individuals affected by an RC tendinopathy often have neuromuscular and proprioceptive deficits. OBJECTIVES: The objectives of this study are to (i) conduct a systematic review to identify methods of quantifying shoulder proprioception in a laboratory and clinical setting and to present the associated psychometric properties. (ii) To evaluate the effectiveness of a novel neuromuscular training program for the upper extremities versus one-on-one physiotherapy care (manual therapy, range of motion exercises, strengthening) for the reduction of shoulder pain and improvement in function with soldiers affected by an RC tendinopathy. METHODS: (i) A review of five databases was conducted from conception to July 2016 to identify studies that reported at least one psychometric property of a shoulder proprioception protocol. The included studies were evaluated using the QualSyst checklist and the 4-point COSMIN scale. (ii) Thirty-three military personnel with the Canadian Armed Forces were randomly assigned to one of the following interventions: 1) Upper Extremity Neuromuscular Training Program; (2) usual physiotherapy care. The main outcomes included symptoms and functional capacity assessed using the Disability of the Arm, Shoulder, and Hand (DASH) questionnaire. A secondary outcome included the Western Ontario Rotator Cuff (WORC) Index. Outcome measures were evaluated at baseline (T0) and 6 (T6) and 12 (T12) weeks post-intervention. The effects of the interventions were evaluated using repeated 2-way variance measures (ANOVAs) for a per-protocol analysis and intention-to-treat. RESULTS: i) Twenty-one studies were included, resulting in 407 participants and 553 evaluated shoulders (n). The weighed intraclass correlation coefficients (ICC) for intra-rater reliability were highest for passive joint position sense and kinesthesia, ICC = 0.92 ± 0.07 (n = 214) and ICC = 0.92 ± 0.04 (n = 74), respectively. The most reliable direction of movement and equipment used were internal rotation at 90° abduction, ICC = 0.88 ± 0.01 (n = 53), and the dynamometer, ICC = 0.92 ± 0.88 (N = 225). ii) No significant group (p ≥ 0.1) or group × time interactions (p ≥ 0.1) were found; though a statistically significant time effect (p < 0.001) was established for the DASH questionnaire and WORC Index. Our preliminary data suggests a marginally better improvement with the control group with all outcomes over 12 weeks. CONCLUSION: The evaluation of shoulder proprioception is most reliable when using a passive protocol with an isokinetic dynamometer for internal rotation at 90° shoulder abduction. The preliminary results of our pilot RCT suggest that both groups statistically improved with a time effect, but that the usual care group further demonstrated clinically significant gains. The results of this study will provide clinicians with potential guidelines for measuring shoulder proprioception in a clinical setting, as well as an innovative approach to group therapy that is potentially less costly and equally as effective as conventional one-on-one physiotherapy. Key words (4-6) : Shoulder, tendinopathy, motor control, proprioception, exercise program, physiotherapy care

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Book chapters on the topic "Pivot rotatoire"

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Zaffagnini, Stefano, Cecilia Signorelli, Francisco Urrizola, Alberto Grassi, Federico Raggi, Tommaso Roberti di Sarsina, Tommaso Bonanzinga, and Nicola Lopomo. "Navigating the Pivot-Shift Test." In Rotatory Knee Instability, 245–54. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-32070-0_20.

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van der List, Jelle P., and Andrew D. Pearle. "Mechanizing the Pivot Shift Test." In Rotatory Knee Instability, 255–68. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-32070-0_21.

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Lopomo, Nicola, and Stefano Zaffagnini. "Quantifying the “Feel” of the Pivot Shift." In Rotatory Knee Instability, 277–87. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-32070-0_23.

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Araujo, Paulo H., Bruno Ohashi, and Maurício Kfuri. "Quantifying “the Look” of the Pivot Shift." In Rotatory Knee Instability, 289–97. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-32070-0_24.

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Leblanc, Marie-Claude, Devin C. Peterson, and Olufemi R. Ayeni. "Pivot Shift Test: An Evidence-Based Outcome Tool." In Rotatory Knee Instability, 235–43. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-32070-0_19.

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Kuroda, Ryosuke, Yuichi Hoshino, Takehiko Matsushita, Kouki Nagamune, and Masahiro Kurosaka. "Development of Electromagnetic Tracking for the Pivot Shift." In Rotatory Knee Instability, 269–76. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-32070-0_22.

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Hoshino, Yuichi. "Quantifying the Forces During the Pivot Shift Test." In Rotatory Knee Instability, 435–40. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-32070-0_36.

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Lord, Breck, and Andrew A. Amis. "The Envelope of Laxity of the Pivot Shift Test." In Rotatory Knee Instability, 223–34. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-32070-0_18.

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Borgstrom, Per Henrik, Edward Cheung, Keith L. Markolf, David R. McAllister, William J. Kaiser, and Frank A. Petrigliano. "Use of Inertial Sensors for Quantifying the Pivot Shift Maneuver." In Rotatory Knee Instability, 299–307. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-32070-0_25.

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Waldman, Steven D. "Prueba del cambio de pivote para la inestabilidad rotatoria anterolateral." In Atlas diagnóstico del dolor, 339. Elsevier, 2007. http://dx.doi.org/10.1016/b978-84-8174-938-0.50169-5.

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Conference papers on the topic "Pivot rotatoire"

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Lewis, George, Lyndon Hernandez, George K. Lewis Sr., and Ralph Ortiz. "Wearable long duration ultrasound therapy pilot study in rotator cuff tendinopathy." In ICA 2013 Montreal. ASA, 2013. http://dx.doi.org/10.1121/1.4800272.

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Chu, Thomas, Jen M. Ty, Bayram Orazov, Nicole Strauss, Oliver M. O’Reilly, Jenni M. Buckley, and Lisa L. Lattanza. "Surgeon Experience Level Affects Mechanics of the Pivot Shift Test for Posterolateral Rotatory Instability of the Elbow." In ASME 2009 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2009. http://dx.doi.org/10.1115/sbc2009-206560.

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Posterolateral rotatory instability (PLRI) of the elbow occurs secondary to an injury to the lateral ulnar collateral ligament and lateral stabilizing structures [2]. The lateral pivot-shift test (PST) is a clinical examination for diagnosing PLRI [1]. The test involves moving the elbow from full extension to flexion while applying simultaneous supination torque, valgus moment, and axial compression [2]; a positive result is characterized by ulnohumeral subluxation that is seen clinically as posterolateral movement of the radial head and an incongruent radiocapitellar joint [2]. The PST is difficult to reliably reproduce in an office setting [3]. This can be due to patient-guarding or inexperience of the examiner. It is likely that the experienced examiner may perform the test differently from the inexperienced examiner. The PST has not previously been characterized biomechanically in the laboratory. Thus, the objective of this study is to fully characterize the biomechanics of the PST for PLRI. We will evaluate the repeatability of the PST across multiple surgeons and determine how the clinician’s level of training affects their method of testing. These results will be useful in developing training guidelines to standardize PST application as well as to improve accuracy.

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Sla´vik, Ondrej, Alojz Slaninka, Martin Lisˇtjak, Kamil Krava´rik, and Igor Pe´ly. "New Free-Release and Sorting Monitors Developed for NPP A-1 Decommissioning, Slovakia." In ASME 2011 14th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2011. http://dx.doi.org/10.1115/icem2011-59071.

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Abstract:

A pilot free-release monitoring post with a 600 L container monitor was developed and metrological tested within the 2nd stage of NPP A1 decommissioning project. In order to reduce the volume of contaminated soil monitoring a conceptual design of fast sorting loader shovel monitor (loader’s spoon) was proposed and tested within the project as well. The free-release monitoring post makes use of a pair of electrically cooled lead shielded semiconductor detectors placed into a mounting rack ensuring measurements in either horizontal (container monitoring) or vertical (drum monitoring) counting geometry. For evaluation of measured HPGe spectra the Canberra – Packard ISOCS detection efficiency calculation code was used. A loader is used to change the measured side of the 600 L container. For metrological certification of this monitor a special prototype test container with 24 rod sources inside a regular grid was necessary to design and to use. The mentioned above vertical counting geometry together with an additional drum rotator ensures standard free release monitoring of materials in 200 l rotating drums. Successful metrological qualification of the both counting geometries at SMU Bratislava showed 20% accuracy class. A pair of NaI(Tl) detectors and a measurement and navigation frame ensuring loader shovel fixation in counting position are used for the fast sorting monitoring. The navigation of loader and its shovel to the counting geometry should be as fast as possible. The monitored results shall be indicated by a prompt light indication system (apart from storing on HDD). MCNP 5 calculation code was used for assessment of gross gamma 137Cs detection efficiency. The estimated MDA for a pair of 2″ × 2″ Na(Tl) detectors and 30 s acquisition time is about 90 Bq/kg. However, due to the counting geometry deviations from calculated values the uncertainty of measurements can be relatively high. Hence, the system is applicable for sorting monitoring only.

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