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Wang Y, Lu J, Wang Z, Li Z, Pan F, Zhang M, Chen L, Zhan H. The association between patella alignment and morphology and knee osteoarthritis. J Orthop Surg Res 2024; 19:509. [PMID: 39192379 DOI: 10.1186/s13018-024-05001-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 08/16/2024] [Indexed: 08/29/2024] Open
Abstract
OBJECTIVE This study aims to quantitatively assess the relationship between the patella alignment and morphology and knee osteoarthritis (KOA), as well as the kinematics and kinetics of the knee, using gait analysis. METHODS Eighty age-matched patients with KOA and control subjects were evaluated. Incident radiographic osteoarthritis (iROA) was identified using a Kellgren-Lawrence (KL) grade of ≥ 2. The modified Insall-Salvati ratio (Mod-ISR), patellar tilt angle (PTA), and patella index (PI) were utilized to evaluate the sagittal and transverse alignment of the patella and its morphology, respectively. Regression analyses were conducted to explore associations between patellar measurements and KOA, iROA, kinematics, and kinetics. RESULTS Significant differences were observed between the control and KOA groups in terms of KL grade, patella alta, abduction angle, and reaction force to the ground (P < 0.05, respectively). Following adjustment for covariates, a significant positive association was found between patella alta and KOA (OR = 0.307, 95%CI: 0.103 to 0.918, P = 0.035). Additionally, a significant negative association was observed between PTA and abduction angle (B = -0.376, 95%CI: -0.751 to -0.002; P = 0.049). The PI exhibited a statistically significant association with log-transformed vertical ground reaction force (B = 0.002, 95%CI: 0.001 to 0.003, P = 0.002). Furthermore, adjustment for covariates did not reveal any significant correlations with other indicators (P > 0.05, respectively). CONCLUSION This study provides further evidence that proper alignment and morphology of the patella might be associated with maintaining normal biomechanical function. In addition, intervention measures targeting relevant patellar parameters, such as Mod-ISR, PTA, and PI, may positively impact KOA treatment outcomes.
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Affiliation(s)
- Yuanyuan Wang
- Institute of Science, Technology and Humanities, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jiehang Lu
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology & Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Zhengming Wang
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology & Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Zhengyan Li
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology & Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Fuwei Pan
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology & Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
- Department of Massage, Third Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Min Zhang
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology & Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Liyun Chen
- Institute of Science, Technology and Humanities, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hongsheng Zhan
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
- Institute of Traumatology & Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China.
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Fischer AG, Titchenal MR, Migliore E, Asay JL, Erhart-Hledik JC, Andriacchi TP. Elevated proinflammatory cytokines in response to mechanical stimulus are associated with reduced knee loading 2 years after anterior cruciate ligament reconstruction. Clin Biomech (Bristol, Avon) 2024; 116:106286. [PMID: 38850881 DOI: 10.1016/j.clinbiomech.2024.106286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 04/25/2024] [Accepted: 06/03/2024] [Indexed: 06/10/2024]
Abstract
BACKGROUND The aim of this study was to test the hypothesis that proinflammatory cytokines correlate with knee loading mechanics during gait following a mechanical walking stimulus in subjects 2 years after anterior cruciate ligament reconstruction. Elevated systemic levels of proinflammatory cytokines can be sustained for years after injury. Considering roughly 50% of these patients progress to Osteoarthritis 10-15 years after injury, a better understanding of the role of proinflammatory cytokines such as tumor necrosis factor-α and Interleukin-1β on Osteoarthritis risk is needed. METHODS Serum proinflammatory cytokines concentrations were measured in 21 subjects 2 years after unilateral ACLR from blood drawn at rest and 3.5 h after 30 min of walking. An optoelectronic system and a force plate measured subjects' knee kinetics. Correlations were tested between inflammatory marker response and knee extension and knee adduction moments. FINDINGS Changes in proinflammatory cytokines due to mechanical stimulus were correlated (R = 0.86) and showed substantial variation between subjects in both cytokines at 3.5 h post-walk. Knee loading correlated with 3.5-h changes in tumor necrosis factor-α concentration (Knee extension moment: R = -0.5, Knee adduction moment: R = -0.5) and Interleukin-1β concentration (Knee extension moment: R = -0.44). However, no significant changes in concentrations were observed in tumor necrosis factor-α and Interleukin-1β when comparing baseline and post walking stimulus conditions. INTERPRETATION The significant associations between changes in serum proinflammatory markers following a mechanical stimulus and gait metrics in subjects at risk for developing Osteoarthritis underscore the importance of investigating the interaction between biomarkers and biomechanical factors in Osteoarthritis development.
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Affiliation(s)
- Arielle G Fischer
- Department of Biomedical Engineering, Technion- Israel Institute of Technology, Haifa, Israel; Department of Mechanical Engineering, Stanford University, Stanford, CA, USA.
| | - Matthew R Titchenal
- Department of Mechanical Engineering, Stanford University, Stanford, CA, USA; Palo Alto Veterans Hospital, Palo Alto, CA, USA
| | | | - Jessica L Asay
- Department of Mechanical Engineering, Stanford University, Stanford, CA, USA; Palo Alto Veterans Hospital, Palo Alto, CA, USA; Department of Radiology, Stanford University School of Medicine, Stanford, CA, USA
| | - Jennifer C Erhart-Hledik
- Palo Alto Veterans Hospital, Palo Alto, CA, USA; Palo Alto Veterans Institute for Research, Palo Alto, CA, USA
| | - Thomas P Andriacchi
- Department of Mechanical Engineering, Stanford University, Stanford, CA, USA
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Starbuck C, Walters V, Herrington L, Barkatali B, Jones R. Knee Offloading by Patients During Walking and Running After Meniscectomy. Orthop J Sports Med 2024; 12:23259671231214766. [PMID: 38524891 PMCID: PMC10958822 DOI: 10.1177/23259671231214766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 06/19/2023] [Indexed: 03/26/2024] Open
Abstract
Background Changes in knee loading have been reported after meniscectomy. Knee loading has previously been assessed during jogging and treadmill running rather than overground running, which could give altered results. Purpose/Hypothesis The purpose of this study was to evaluate knee function during overground running and walking after meniscectomy. It was hypothesized that the affected limb would demonstrate higher external knee adduction moment, lower knee flexion moment (KFM), and lower knee rotation moment (KRM) compared with the contralateral limb and with healthy individuals. Study Design Controlled laboratory study. Methods Kinematic and kinetic data were collected during running and walking in individuals after a meniscectomy and healthy individuals. Total knee joint moments (TKJM) were calculated from the sagittal, frontal, and transverse knee moments. Isometric quadriceps strength, perceived knee function, and kinesiophobia were also assessed. A mixed linear model compared differences between the affected leg, the contralateral leg, and the healthy leg. Results Data were collected on 20 healthy individuals and 30 individuals after a meniscectomy (mean ± SD, 5.7 ± 2.9 months postsurgery), with 12, 16, and 2 individuals who had medial, lateral, and both medial and lateral meniscectomy, respectively. The affected limb demonstrated lower TKJM (P < .001), KFM (P = .004), and KRM (P < .001) during late stance of walking compared with the healthy group. Lower TKJM and KFM were observed during running in the affected limb compared with the contralateral limb and healthy group. No significant differences were observed between contralateral and healthy limbs except for KRM during late stance of walking. Lower quadriceps strength was observed in the affected (P < .001) and contralateral limbs (P = .001) compared with the healthy group. Individuals after a meniscectomy also reported greater kinesiophobia (P = .006) and lower perceived knee function (31.1%; P < .001) compared with the healthy group. Conclusion After meniscectomy, individuals who sustained a traumatic meniscal injury showed lower TKJM in the affected limb compared with the contralateral limb and healthy individuals. This decrease in TKJM can be attributed to altered knee-loading strategies in the sagittal and transverse planes. Clinical Relevance Improving movement strategies, quadriceps strength, and kinesiophobia through rehabilitation approaches will allow individuals to load their knee appropriately when returning to sport. Registration NCT03379415 (ClinicalTrials.gov identifier).
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Affiliation(s)
- Chelsea Starbuck
- Applied Sports, Technology, Exercise and Medicine Research Centre, Faculty of Science and Engineering, Swansea University, Swansea, UK
- Human Movement and Rehabilitation, School of Health and Society, University of Salford, Salford, UK
- Manchester Institute of Health and Performance, Manchester, UK
| | - Vanessa Walters
- Human Movement and Rehabilitation, School of Health and Society, University of Salford, Salford, UK
- Manchester Institute of Health and Performance, Manchester, UK
| | - Lee Herrington
- Human Movement and Rehabilitation, School of Health and Society, University of Salford, Salford, UK
| | | | - Richard Jones
- Human Movement and Rehabilitation, School of Health and Society, University of Salford, Salford, UK
- Manchester Institute of Health and Performance, Manchester, UK
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Dutra M, Covas da Silva S, da Silva Beggiora Marques P, Oliveira Amaral I, Funo de Souza SN, Dutra LA, Volpon Santos M, Machado HR, da Silva Lopes L. Celecoxib attenuates neuroinflammation, reactive astrogliosis and promotes neuroprotection in young rats with experimental hydrocephalus. J Chem Neuroanat 2023; 133:102344. [PMID: 37777093 DOI: 10.1016/j.jchemneu.2023.102344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 10/02/2023]
Abstract
Hydrocephalus is a neurological condition with altered cerebrospinal fluid flow (CSF). The treatment is surgical and the most commonly used procedure is ventricle-peritoneal shunt. However, not all patients can undergo immediate surgery or achieve complete lesion reversal. Neuroprotective measures are valuable in such cases. It was evaluated whether the use of celecoxib, a selective inhibitor of COX-2, associated or not with ventricular-subcutaneous derivation, could offer benefits to the brain structures affected by experimental hydrocephalus. Seven-day-old male Wistar Hannover rats induced by intracisternal injection of kaolin 15% were used, divided into five groups with ten animals each: intact control (C), untreated hydrocephalus (H), hydrocephalus treated with celecoxib 20 mg/kg intraperitoneal (HTC), hydrocephalus treated with shunt (HTS) and hydrocephalus treated with shunt and celecoxib 20 mg/kg intraperitoneal (HTCS). Celecoxib was administered for 21 consecutive days, starting the day after hydrocephalus induction and continuing until the end of the experimental period. The surgery was performed seven days after inducing hydrocephalus. Multiple assessment methods were used, such as behavioral tests (water maze and open field), histological analysis (hematoxylin and eosin), immunohistochemistry (caspase-3, COX-2, and GFAP), and ELISA analysis of GFAP. The results of the behavioral and memory tests indicated that celecoxib improves the neurobehavioral response. The improvement can be attributed to the reduced neuroinflammation (p < 0.05), and astrogliosis (p < 0.05) in different brain regions. In conclusion, the results suggest that celecoxib holds great potential as an adjuvant neuroprotective drug for the treatment of experimental hydrocephalus.
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Affiliation(s)
- Maurício Dutra
- Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Av, 3900, Ribeirão Preto, SP, Brazil.
| | - Stephanya Covas da Silva
- Department of Morphology and Pathology, Division of Anatomy, Federal University of Sao Carlos, Washington Luiz Hig., Monjolinho, Sao Carlos, SP, Brazil.
| | - Pâmella da Silva Beggiora Marques
- Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Av, 3900, Ribeirão Preto, SP, Brazil
| | - Izadora Oliveira Amaral
- Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Av, 3900, Ribeirão Preto, SP, Brazil.
| | - Stephanie Naomi Funo de Souza
- Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Av, 3900, Ribeirão Preto, SP, Brazil
| | - Luiz Antônio Dutra
- Nucleus of Bioassays, Biosynthesis, and Ecophysiology of Natural Products (NuBBE), Institute of Chemistry, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - Marcelo Volpon Santos
- Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Av, 3900, Ribeirão Preto, SP, Brazil.
| | - Hélio Rubens Machado
- Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Av, 3900, Ribeirão Preto, SP, Brazil
| | - Luiza da Silva Lopes
- Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Av, 3900, Ribeirão Preto, SP, Brazil.
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Yamagata M, Tateuchi H, Asayama A, Ichihashi N. Influence of lower-limb muscle inactivation on medial and lateral knee contact forces during walking. Med Eng Phys 2022; 108:103889. [DOI: 10.1016/j.medengphy.2022.103889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 07/27/2022] [Accepted: 09/01/2022] [Indexed: 10/14/2022]
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Lascelles BDX, Brown DC, Conzemius MG, Gill M, Oshinsky ML, Sharkey M. The beneficial role of companion animals in translational pain research. FRONTIERS IN PAIN RESEARCH 2022; 3:1002204. [PMID: 36133153 PMCID: PMC9483146 DOI: 10.3389/fpain.2022.1002204] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 08/16/2022] [Indexed: 11/21/2022] Open
Abstract
The use of spontaneous painful disease in companion pet animals has been highlighted as one of the changes that could be made to help improve translation of basic science to new therapeutics, acting as a bridge between preclinical and clinical studies, with the goal of accelerating the approval of new therapeutics. This review focuses on the utility of companion pet dogs for translational research by reviewing what outcome measures can be measured, and importantly, the relevance of these outcome measures to human translational research. It also details the practical considerations involved in incorporating companion dogs into human therapeutic development.
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Affiliation(s)
- B. Duncan X. Lascelles
- Translational Research in Pain, Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States
- Comparative Pain Research and Education Center, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States
- Thurston Arthritis Centre, UNC School of Medicine, Chapel Hill, NC, United States
- Center for Translational Pain Research, Department of Anesthesiology, Duke University, Durham, NC, United States
- Correspondence: B. Duncan X. Lascelles
| | - Dottie C. Brown
- Global Efficacy & Model Development, Elanco Animal Health, Greenfield, IN, United States
| | - Michael G. Conzemius
- Clinical Investigation Center, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, United States
| | - Marie Gill
- National Institute of Neurological Disorders and Stroke/National Institutes of Health, Bethesda, MD, United States
| | - Michael L. Oshinsky
- National Institute of Neurological Disorders and Stroke/National Institutes of Health, Bethesda, MD, United States
| | - Michelle Sharkey
- Center for Veterinary Medicine Food and Drug Administration, Rockville, MD, United States
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Similar Effects of Exercise Therapy, Nonsteroidal Anti-inflammatory Drugs, and Opioids for Knee Osteoarthritis Pain: A Systematic Review with Network Meta-analysis. J Orthop Sports Phys Ther 2022; 52:207-216. [PMID: 35442752 DOI: 10.2519/jospt.2022.10490] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To compare the effectiveness of opioids, nonsteroidal anti-inflammatory drugs (NSAIDs), and exercise therapy for knee osteoarthritis pain. DESIGN Systematic review with network meta-analysis. LITERATURE SEARCH We searched the databases MEDLINE, EMBASE, and Cochrane Central Register of Controlled Trials from inception to April 15, 2021. Web of Science was used for citation tracking. STUDY SELECTION CRITERIA Randomized controlled trials comparing exercise therapy, NSAIDs, and opioids in any combination for knee osteoarthritis pain. DATA SYNTHESIS Network meta-analysis comparing exercise therapy, NSAIDs, opioids, and placebo/control for knee osteoarthritis pain. Additional trials from previous reviews were included to create the external placebo/control anchor. RESULTS We included 13 trials (1398 patients) with direct comparisons, supplemented with data from 101 additional trials. The treatment effect of NSAIDs for knee osteoarthritis pain was similar to that of opioids (standardized mean difference [SMD], 0.02; 95% confidence interval [CI], -0.14 to 0.18; Grading of Recommendations, Assessment, Development and Evaluations [GRADE]: low certainty). Exercise therapy had a larger effect than NSAIDs (SMD, 0.54; 95% CI, 0.19 to 0.89; GRADE: very low certainty). No estimate could be made for exercise vs opioids due to the lack of studies. Exercise therapy ranked as the "best" intervention in the network meta-analysis, followed by NSAIDs, opioids, and placebo/control intervention (GRADE: low certainty). CONCLUSION Exercise therapy ranked as the best treatment for knee osteoarthritis pain, followed by NSAIDs and opioids. The difference between treatments was small and likely not clinically relevant, and the overall confidence in the ranking was low. The results highlight the limited evidence for comparative effectiveness between exercise therapy, NSAIDs, and opioids for knee osteoarthritis pain. J Orthop Sports Phys Ther 2022;52(4):207-216. doi:10.2519/jospt.2022.10490.
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Philpott HT, Carter MM, Birmingham TB, Pinto R, Primeau CA, Giffin JR, Lanting BA, Appleton CT. Synovial tissue perivascular edema is associated with altered gait patterns in patients with knee osteoarthritis. Osteoarthritis Cartilage 2022; 30:42-51. [PMID: 34774789 DOI: 10.1016/j.joca.2021.10.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 10/21/2021] [Accepted: 10/26/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To explore mechanisms of mechanoinflammation, we investigated the association between the presence of knee synovial perivascular edema and gait biomechanics that serve as surrogate measures of knee load in patients with knee osteoarthritis (OA). DESIGN Patients with symptomatic, radiographic knee OA and neutral to varus alignment undergoing total knee arthroplasty or high tibial osteotomy participated in this cross-sectional analysis. All participants underwent 3D gait analysis prior to surgery. Synovial biopsies were obtained during surgery for histopathological assessment. The association between the presence of synovial perivascular edema (predictor) and the external knee moment (outcome) in each orthogonal plane was analyzed using multivariate linear regression and polynomial mixed effects regression models, while adjusting for age, sex, BMI, and gait speed. RESULTS Ninety-two patients with complete gait and histopathological data were included. When fitted over 100% of stance, regression models indicated substantial differences between patients with and without synovial perivascular edema for knee moments in frontal, sagittal and transverse planes. The knee adduction moment was higher in patients with edema from 16 to 74% of stance, with the largest difference at 33% of stance (β = 6.87 Nm [95%CI 3.02, 10.72]); whereas the knee flexion-extension moment differed from 15 to 92% of stance, with the largest difference in extension at 60% of stance (β = -10.80 Nm [95%CI -16.20, -5.40]). CONCLUSIONS In patients with knee OA, the presence of synovial perivascular edema identified by histopathology is associated with aberrant patterns of knee loading throughout stance, supporting the link between biomechanics and synovial inflammation.
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Affiliation(s)
- H T Philpott
- Faculty of Health Sciences, University of Western Ontario, London, N6G 1H1, ON, Canada; Bone and Joint Institute, University of Western Ontario, London Health Sciences Centre-University Hospital, London, N6A 5B5, ON, Canada.
| | - M M Carter
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, N6A 5C1, ON, Canada; Bone and Joint Institute, University of Western Ontario, London Health Sciences Centre-University Hospital, London, N6A 5B5, ON, Canada.
| | - T B Birmingham
- Faculty of Health Sciences, University of Western Ontario, London, N6G 1H1, ON, Canada; Bone and Joint Institute, University of Western Ontario, London Health Sciences Centre-University Hospital, London, N6A 5B5, ON, Canada.
| | - R Pinto
- Faculty of Health Sciences, University of Western Ontario, London, N6G 1H1, ON, Canada; Bone and Joint Institute, University of Western Ontario, London Health Sciences Centre-University Hospital, London, N6A 5B5, ON, Canada.
| | - C A Primeau
- Faculty of Health Sciences, University of Western Ontario, London, N6G 1H1, ON, Canada; Bone and Joint Institute, University of Western Ontario, London Health Sciences Centre-University Hospital, London, N6A 5B5, ON, Canada.
| | - J R Giffin
- Bone and Joint Institute, University of Western Ontario, London Health Sciences Centre-University Hospital, London, N6A 5B5, ON, Canada; Department of Surgery, Schulich School of Medicine and Dentistry, University of Western Ontario, London, N6A 5C1, ON, Canada.
| | - B A Lanting
- Bone and Joint Institute, University of Western Ontario, London Health Sciences Centre-University Hospital, London, N6A 5B5, ON, Canada; Department of Surgery, Schulich School of Medicine and Dentistry, University of Western Ontario, London, N6A 5C1, ON, Canada.
| | - C T Appleton
- Bone and Joint Institute, University of Western Ontario, London Health Sciences Centre-University Hospital, London, N6A 5B5, ON, Canada; Department of Medicine, Schulich School of Medicine and Dentistry, University of Western Ontario, London, N6A 5C1, ON, Canada.
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A Review of the Relationships Between Knee Pain and Movement Neuromechanics. J Sport Rehabil 2021; 31:684-693. [PMID: 34942599 DOI: 10.1123/jsr.2021-0020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 09/28/2021] [Accepted: 10/06/2021] [Indexed: 11/18/2022]
Abstract
CONTEXT Knee injury and disease are common, debilitating, and expensive. Pain is a chief symptom of knee injury and disease and likely contributes to arthrogenic muscle inhibition. Joint pain alters isolated motor function, muscular strength, and movement biomechanics. Because knee pain influences biomechanics, it likely also influences long-term knee joint health. OBJECTIVE The purpose of this article is 2-fold: (1) review effects of knee pain on lower-extremity muscular activation and corresponding biomechanics and (2) consider potential implications of neuromechanical alterations associated with knee pain for long-term knee joint health. Experimental knee pain is emphasized because it has been used to mimic clinical knee pain and clarify independent effects of knee pain. Three common sources of clinical knee pain are also discussed: patellofemoral pain, anterior cruciate ligament injury and reconstruction, and knee osteoarthritis. DATA SOURCES The PubMed, Web of Science, and SPORTDiscus databases were searched for articles relating to the purpose of this article. CONCLUSION Researchers have consistently reported that knee pain alters neuromuscular activation, often in the form of inhibition that likely occurs via voluntary and involuntary neural pathways. The effects of knee pain on quadriceps activation have been studied extensively. Knee pain decreases voluntary and involuntary quadriceps activation and strength and alters the biomechanics of various movement tasks. If allowed to persist, these neuromechanical alterations might change the response of articular cartilage to joint loads during movement and detrimentally affect long-term knee joint health. Physical rehabilitation professionals should consider neuromechanical effects of knee pain when treating knee injury and disease. Resolution of joint pain can likely help to restore normal movement neuromechanics and potentially improve long-term knee joint health and should be a top priority.
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Oubre B, Lane S, Holmes S, Boyer K, Lee SI. Estimating Ground Reaction Force and Center of Pressure using Low-Cost Wearable Devices. IEEE Trans Biomed Eng 2021; 69:1461-1468. [PMID: 34648428 DOI: 10.1109/tbme.2021.3120346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Ambulatory monitoring of ground reaction force (GRF) and center of pressure (CoP) could improve management of health conditions that impair mobility. Insoles instrumented with force-sensitive resistors (FSRs) are an unobtrusive, low-cost, and low-power technology for sampling GRF and CoP in real-world environments. However, FSRs have variable response characteristics that complicate estimation of GRF and CoP. This study introduces a unique data analytic pipeline that enables accurate estimation of GRF and CoP despite relatively inaccurate FSR responses. This paper also investigates whether inclusion of a complementary knee angle sensor improves estimation accuracy. METHODS Seventeen healthy subjects were equipped with an insole instrumented with six FSRs and a string-based knee angle sensor. Subjects walked in a straight line at self-selected slow, preferred, and fast speeds over an in-ground force platform. Twenty repetitions were performed for each speed. Supervised machine learning models estimated weight-normalized GRF and shoe size-normalized CoP, which were re-scaled to obtain GRF and CoP. RESULTS Anteroposterior GRF, Vertical GRF, and Anteroposterior CoP were estimated with a normalized root mean square error (NRMSE) of less than 5%. Mediolateral GRF and CoP were estimated with an NRMSE of 8.1% and 6.4%$ respectively. Knee angle-related features slightly improved GRF estimates. CONCLUSION Normalized models accurately estimated GRF and CoP despite deficiencies in FSR data. SIGNIFICANCE Ambulatory use of the proposed system could enable objective, longitudinal monitoring of severity and progression for a variety of health conditions.
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Costello KE, Felson DT, Neogi T, Segal NA, Lewis CE, Gross KD, Nevitt MC, Lewis CL, Kumar D. Ground reaction force patterns in knees with and without radiographic osteoarthritis and pain: descriptive analyses of a large cohort (the Multicenter Osteoarthritis Study). Osteoarthritis Cartilage 2021; 29:1138-1146. [PMID: 33757856 PMCID: PMC8319033 DOI: 10.1016/j.joca.2021.03.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 02/22/2021] [Accepted: 03/10/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To compare ground reaction force patterns (GRF) during walking among legs defined by presence or absence of knee pain and/or radiographic knee osteoarthritis (ROA). METHOD Principal component analysis extracted major modes of variation (PCs) in GRF data from the Multicenter Osteoarthritis Study during self-paced walking. Legs were categorized as pain + ROA (n = 168), ROA only (n = 303), pain only (n = 476), or control (n = 1877). Relationships between group and GRF PCs were examined using Generalized Estimating Equations, adjusted for age, sex, body mass index, race, and clinic site with and without additional adjustment for gait speed. RESULTS With or without speed adjustment, pain + ROA had flatter vertical GRF waveforms than control (speed adjusted PC2 difference [95%CI]: -66 [-113,-20]), pain + ROA and ROA only had higher lateral GRF at impact and greater mid-stance medial GRF than control (speed adjusted PC3 difference: 9 [3,16] and 6 [2,10], respectively), and ROA only had higher early vs late medial GRF than control (speed adjusted PC2 difference: 7 [2,13]). Pain only had flatter vertical GRF waveforms and a smaller difference between anterior and posterior GRF than control only without speed adjustment. CONCLUSION In this large sample, sustained mid-stance loading and higher impact loads were identified in legs with ROA or ROA and pain, even when adjusting for differences in gait speed and other confounders. While it remains to be seen whether these features precede or result from ROA and pain, the presence of these patterns in the speed-adjusted models could have implications on gait interventions aimed to change joint loading.
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Affiliation(s)
- Kerry E. Costello
- Boston University, Boston, MA,Boston University School of Medicine, Boston, MA
| | | | - Tuhina Neogi
- Boston University School of Medicine, Boston, MA
| | - Neil A. Segal
- University of Kansas Medical Center, Kansas City, KS,The University of Iowa, Iowa City, IA
| | | | | | | | - Cara L. Lewis
- Boston University, Boston, MA,Boston University School of Medicine, Boston, MA
| | - Deepak Kumar
- Boston University, Boston, MA,Boston University School of Medicine, Boston, MA
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12
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Time-integrated propulsive and braking impulses do not depend on walking speed. Gait Posture 2021; 88:258-263. [PMID: 34139632 PMCID: PMC8316424 DOI: 10.1016/j.gaitpost.2021.06.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 05/24/2021] [Accepted: 06/09/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND Enhancing propulsion during walking is often a focus in physical therapy for those with impaired gait. However, there is no consensus in the literature for assessing braking and propulsion. Both are typically measured from the anterior-posterior ground reaction force (AP-GRF). While normalization of AP-GRF force by bodyweight is commonly done in the analysis, different methods for AP-GRF time axis normalization are used. RESEARCH QUESTION Does walking speed affect propulsion and/or braking, and how do different methods for calculating propulsion and braking impact the conclusion, in both healthy adults and those with lower limb impairment? METHODS We investigated three different analysis methods for assessing propulsion. 1. BW-TimeIntegration: Bodyweight (BW) normalized time integration of AP-GRF (units of BWs). 2. BW-%StanceIntegration: BW normalized AP-GRF is resampled to percent stance phase prior to integration (units of BW%Stance). 3. BW-Peak: BW normalized peak force (units of BW). We applied these methods to two data sets. One data set included AP-GRFs from trials of slow, self-selected, and fast walking speeds for 203 healthy controls (HCs); a second data set included subjects with lower limb orthopedic injuries. RESULTS Using the BW-TimeIntegration method, we found no effect of walking speed on propulsion for HCs. Time integration over the longer stance phase of slower walking balanced the lower magnitude AP-GRFs of slower walking, resulting in a time-integrated impulse that was the same regardless of walking speed. In contrast, the other two methods that are not time integration methods found that propulsion increased with walking speed. Similarly, in the gait pathology data set, differences in results were found depending on the analysis method used. SIGNIFICANCE For many gait studies concerning propulsion and/or braking, the impulse measure used should be related to the body's change of momentum, necessitating an analysis method with a time integration of the AP-GRF.
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13
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Fischer AG, Erhart-Hledik JC, Asay JL, Chu CR, Andriacchi TP. Utilizing the somatosensory system via vibratory stimulation to mitigate knee pain during walking: Randomized clinical trial. Gait Posture 2020; 80:37-43. [PMID: 32485422 DOI: 10.1016/j.gaitpost.2020.05.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/18/2020] [Accepted: 05/20/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND Pain and proprioception deficits are often associated with knee pathologies and resultant quadriceps muscle inhibition. There is a need for new approaches to mitigate active knee pain and restore muscle function during walking. Activating properties of the somatosensory system with common pain and sensory pathways offers a novel opportunity to enhance quadriceps function during walking. RESEARCH QUESTION Conduct a controlled clinical trial that investigates the effects of applying intermittent vibrational cutaneous stimulation during walking on knee pain and symptoms and their correlations to gait parameters. METHODS This longitudinal controlled cross-over clinical study included thirty-two patients randomly and blindly assigned to active Treatment A and passive Treatment B for 4 weeks with a 2-week washout period between treatments. RESULTS Subjects when wearing active Treatment A for 4 weeks had significant (p = 0.04) improvement in patient reported outcomes, while they had no significant differences with passive Treatment B (p > 0.7) compared to the no treatment condition. For Treatment A, subjects with low knee flexion moment and knee flexion angle in no-treatment condition exhibited the greatest increase in knee flexion moment/angle in the active treatment condition (R > 0.57, p < 0.001). These changes in gait measures were correlated significantly to changes in pain. SIGNIFICANCE This clinical trial indicates that knee pain can be reduced, and gait improved in a manner that enhances quadriceps function by applying intermittent cutaneous stimulation during gait in patients following knee injury or disease. The correlation between decreased pain and improved gait suggests that rehabilitation and exercise therapy may benefit from this treatment.
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Affiliation(s)
- Arielle G Fischer
- BioMotion Laboratory, Department of Mechanical Engineering, Stanford University, Stanford, CA 94305, USA.
| | - Jennifer C Erhart-Hledik
- BioMotion Laboratory, Department of Mechanical Engineering, Stanford University, Stanford, CA 94305, USA; Palo Alto Veterans Hospital, Palo Alto, CA, USA
| | - Jessica L Asay
- BioMotion Laboratory, Department of Mechanical Engineering, Stanford University, Stanford, CA 94305, USA; Palo Alto Veterans Hospital, Palo Alto, CA, USA
| | - Constance R Chu
- BioMotion Laboratory, Department of Mechanical Engineering, Stanford University, Stanford, CA 94305, USA; Palo Alto Veterans Hospital, Palo Alto, CA, USA
| | - Thomas P Andriacchi
- BioMotion Laboratory, Department of Mechanical Engineering, Stanford University, Stanford, CA 94305, USA
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14
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Ihmels WD, Seymore KD, Brown TN. Effect of Sex and Ankle Brace Design on Knee Biomechanics During a Single-Leg Cut. Am J Sports Med 2020; 48:1496-1504. [PMID: 32223652 DOI: 10.1177/0363546520911048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Despite success at preventing ankle sprain, prophylactics that restrict ankle plantarflexion motion may produce deleterious knee biomechanics and increase injury risk. PURPOSE To determine if ankle prophylactics that restrict plantar- and dorsiflexion motion produce changes in knee biomechanics during a single-leg cut and whether those changes differ between sexes. STUDY DESIGN Controlled laboratory study. METHODS A total of 17 male and 17 female participants performed a single-leg cut with 4 conditions: Ankle Roll Guard (ARG), lace-up brace, nonelastic tape, and an unbraced control. Peak stance knee flexion, abduction, and internal rotation joint angle and moment; total knee reaction moment (TKM) and its components (sagittal, frontal, and transverse); and ankle plantarflexion and inversion range of motion (ROM) and peak stance joint moments were tested with a repeated measures analysis of variance to determine the main effect and interaction of condition and sex. RESULTS Brace and tape restricted plantarflexion ROM as compared with ARG and control (all P < .001). With the brace, women had increased peak knee abduction angle versus ARG (P = .012) and control (P = .009), and men had decreased peak knee internal rotation moment as compared with ARG (P = .032), control (P = .006), and tape (P = .003). Although the restrictive tape decreased inversion ROM when compared with ARG (P = .004) and brace (P = .017), it did not change knee biomechanics. Neither brace nor tape produced significant changes in TKM or components, yet sagittal TKM increased with ARG versus control (P = .016). Women exhibited less ankle inversion ROM (P = .003) and moment (P = .049) than men, while men exhibited significantly greater frontal TKM (P = .022) and knee internal rotation moment with the ARG (P = .029), control (P = .007), and tape (P = .016). CONCLUSION Prophylactics that restrict ankle plantarflexion motion may elicit knee biomechanical changes during a single-leg cut, but these changes may depend on prophylactic design and user's sex and may increase women's injury risk. CLINICAL RELEVANCE Sex-specific ankle prophylactic designs may be warranted to reduce knee injury during sports.
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Affiliation(s)
- Wyatt D Ihmels
- Department of Kinesiology, Boise State University, Boise, Idaho, USA
| | - Kayla D Seymore
- Department of Kinesiology, Boise State University, Boise, Idaho, USA
| | - Tyler N Brown
- Department of Kinesiology, Boise State University, Boise, Idaho, USA
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15
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Krajewski KT, Dever DE, Johnson CC, Rawcliffe AJ, Ahamed NU, Flanagan SD, Mi Q, Anderst WJ, Connaboy C. Load carriage magnitude and locomotion strategy alter knee total joint moment during bipedal ambulatory tasks in recruit-aged women. J Biomech 2020; 105:109772. [PMID: 32279931 DOI: 10.1016/j.jbiomech.2020.109772] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 03/09/2020] [Accepted: 03/28/2020] [Indexed: 10/24/2022]
Abstract
Knee osteoarthritis (OA) is prevalent among female soldiers, resulting in limited duty and long term adverse ambulatory effects. A proposed mechanism to the development of knee OA is the assiduous execution of load carriage tasks. Soldiers are often required to maintain a walking gait with load at velocities beyond their gait transition velocity (GTV) known as forced marching. The primary aim of this investigation is to determine the interactive effects of load magnitude and locomotion pattern on relative knee total joint moment (KTJM) in healthy recruit-aged women. The secondary aims are to determine knee total joint moment limb differences and to determine the interactive effect of load magnitude and locomotion pattern on the percent contributions of each plane of motion moment. Individuals were tasked with running and forced marching at 10% above their GTV at body weight (BW) and with an additional 25% and 45% of their BW. KTJM was analyzed at two specific gait events of heel-strike and mid-stance. At heel-strike, forced marching exhibited greater KTJM compared to run for all load conditions but running had greater KTJM than forced marching at mid-stance. The forced marching pattern exhibited larger KTJM for the dominant limb at both gait events compared to running. Lastly, at mid-stance the knee adduction moment percent (KAM%) contribution was greater for forced marching compared to running. The forced marching pattern demonstrates joint kinetics that may be more deleterious with prolonged exposure. Likewise, forced marching induced KAM% similar to those already suffering from knee OA.
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Affiliation(s)
- Kellen T Krajewski
- Neuromuscular Research Laboratory, Department of Sports Medicine and Nutrition, University of Pittsburgh, Pittsburgh, PA, USA
| | - Dennis E Dever
- Neuromuscular Research Laboratory, Department of Sports Medicine and Nutrition, University of Pittsburgh, Pittsburgh, PA, USA
| | - Camille C Johnson
- Biodynamics Laboratory, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Alex J Rawcliffe
- HQ Army Recruiting and Initial Training Command, Department of Occupation Medicine, Ministry of Defence, UK
| | - Nizam U Ahamed
- Neuromuscular Research Laboratory, Department of Sports Medicine and Nutrition, University of Pittsburgh, Pittsburgh, PA, USA
| | - Shawn D Flanagan
- Neuromuscular Research Laboratory, Department of Sports Medicine and Nutrition, University of Pittsburgh, Pittsburgh, PA, USA
| | - Qi Mi
- Neuromuscular Research Laboratory, Department of Sports Medicine and Nutrition, University of Pittsburgh, Pittsburgh, PA, USA
| | - William J Anderst
- Biodynamics Laboratory, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Chris Connaboy
- Neuromuscular Research Laboratory, Department of Sports Medicine and Nutrition, University of Pittsburgh, Pittsburgh, PA, USA.
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16
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Andriacchi TP, Griffin TM, Loeser RF, Chu CR, Roos EM, Hawker GA, Erhart-Hledik JC, Fischer AG. Bridging Disciplines as a pathway to Finding New Solutions for Osteoarthritis a collaborative program presented at the 2019 Orthopaedic Research Society and the Osteoarthritis Research Society International. OSTEOARTHRITIS AND CARTILAGE OPEN 2020; 2:100026. [DOI: 10.1016/j.ocarto.2020.100026] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Revised: 12/18/2019] [Accepted: 01/07/2020] [Indexed: 01/18/2023] Open
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17
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Erhart-Hledik JC, Chu CR, Asay JL, Favre J, Andriacchi TP. Longitudinal Changes in the Total Knee Joint Moment After Anterior Cruciate Ligament Reconstruction Correlate With Cartilage Thickness Changes. J Orthop Res 2019; 37:1546-1554. [PMID: 30977551 PMCID: PMC6588477 DOI: 10.1002/jor.24295] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 02/19/2019] [Accepted: 03/15/2019] [Indexed: 02/04/2023]
Abstract
This study investigated associations between changes in the total joint moment (TJM) at the knee and changes in cartilage thickness after anterior cruciate ligament reconstruction (ACLR). Seventeen subjects (five males; age: 29.6 ± 7.3 years) with unilateral ACLR underwent gait analysis and magnetic resonance imaging at baseline (2.2 ± 0.3 years post-ACLR) and at long-term follow-up (7.7 ± 0.7 years post-ACLR). Knee loading was assessed using the TJM, and differences in loading were analyzed using repeated measures analysis of variance. Pearson correlation coefficients assessed associations between changes in TJM and changes in (medial-to-lateral) M/L femoral cartilage thickness ratios in the ACLR limb. Bilaterally, there was no significant change in the magnitude of the TJM first peak (TJM1), however, there was a significant increase in the percent contribution of the knee flexion moment (KFM) (p < 0.001) and decrease in the percent contribution of the knee adduction moment (KAM) to TJM1 (p < 0.001). The change in the percent contributions of KFM and KAM to TJM1 were associated with changes in M/L femoral cartilage thickness in the ACLR limb. Specifically, subjects with smaller increases in KFM contribution (R = 0.521, p = 0.032) and smaller decreases in KAM contribution (R = -0.521, p = 0.032) had a reduction in the M/L ratio in the central femoral subregion over the follow-up period, with similar trends in the external femoral subregion. The study results provide new insight into changes in the loading environment at the knee joint prospectively following ACL reconstruction and give evidence that there are modifiable gait metrics that are associated with cartilage changes after ACLR. © 2019 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 37:1546-1554, 2019.
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Affiliation(s)
- Jennifer C. Erhart-Hledik
- Department of Orthopaedic Surgery, Stanford University Medical Center, Stanford, CA,Veterans Affairs Palo Alto Health Care System, Palo Alto, CA
| | - Constance R. Chu
- Department of Orthopaedic Surgery, Stanford University Medical Center, Stanford, CA,Veterans Affairs Palo Alto Health Care System, Palo Alto, CA
| | - Jessica L. Asay
- Veterans Affairs Palo Alto Health Care System, Palo Alto, CA,Department of Mechanical Engineering, Stanford University, Stanford, CA
| | - Julien Favre
- Department of Musculoskeletal Medicine, Centre Hospitalier Universiatire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Thomas P. Andriacchi
- Department of Orthopaedic Surgery, Stanford University Medical Center, Stanford, CA,Veterans Affairs Palo Alto Health Care System, Palo Alto, CA,Department of Mechanical Engineering, Stanford University, Stanford, CA
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18
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Kang SH, Lee SJ, Press JM, Zhang LQ. Real-Time Three-Dimensional Knee Moment Estimation in Knee Osteoarthritis: Toward Biodynamic Knee Osteoarthritis Evaluation and Training. IEEE Trans Neural Syst Rehabil Eng 2019; 27:1263-1272. [PMID: 31071049 DOI: 10.1109/tnsre.2019.2915812] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
We investigated differences in knee kinetic variables (external knee adduction, flexion, internal rotation moments, and impulses) between patients with knee osteoarthritis (KOA) and healthy controls during stepping on a custom elliptical trainer; and searched knee kinetic variable candidates for real-time biofeedback and for complementing diagnosis/evaluation on the elliptical trainer based on the knee kinetic variables' associations with the knee injury and osteoarthritis outcome score (KOOS). Furthermore, we explored potential gait re-training strategies on the elliptical trainer by investigating the knee kinetic variables' associations with 3-D ankle angles. The knee kinetic variables and ankle angles were determined in real-time in a patient group of 10 patients with KOA and an age-and sex-matched control group of 10 healthy subjects. The mean peak external knee adduction moment of the patient group was 47% higher than that of the control group. The KOOS-Sports and Recreational Activities and KOOS-Pain scores were found to be significantly associated with the knee kinetic variables. All the ankle angles were associated with the knee kinetic variables. The findings support the use of the knee kinetic variables on the elliptical trainer to complement KOA diagnosis quantitatively and provide potential real-time KOA gait re-training strategies/guides.
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19
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Boyer KA, Hafer JF. Gait mechanics contribute to exercise induced pain flares in knee osteoarthritis. BMC Musculoskelet Disord 2019; 20:107. [PMID: 30871519 PMCID: PMC6419357 DOI: 10.1186/s12891-019-2493-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 03/05/2019] [Indexed: 01/05/2023] Open
Abstract
Background Exercise-induced pain flares represent a significant barrier for individuals with knee osteoarthritis to meet physical activity recommendations. There is a need to understand factors that contribute to pain flares and the potential for the motor system to adapt and reduce joint loading should a flare occur. The study aim was to examine the impact of a bout of exercise on self-reported pain, walking mechanics and muscle co-contraction for participants with knee osteoarthritis. Methods Thirty-six adults (17 healthy older and 19 knee osteoarthritis) participated in this study. Self-reported pain, joint mechanics and muscle co-activation during gait at two self-selected speeds were collected before and after a 20-min preferred pace treadmill walk (20MTW). Results Eight of nineteen osteoarthritis participants had a clinically significant pain flare response to the 20MTW. At baseline the participants that did not experience a pain flare had smaller knee flexion and total reaction moments compared to both the participants with pain flares (p = 0.02; p = 0.05) and controls (p < 0.001; p < 0.001). In addition, the 2nd peak knee adduction (p = 0.01) and internal rotation (p = 0.001) moments were smaller in the no flares as compared to controls. The pain flare participants differed from controls with smaller knee internal rotation moments (p = 0.03), but greater relative hamstrings (vs. quadriceps) and medial (vs. lateral) muscle activation (p = 0.04, p = 0.04) compared to both controls and no flare participants (p = 0.04, p = 0.007). Following the 20MTW there were greater decreases in the 1st and 2nd peak knee adduction (p = 0.03; p = 0.02), and internal rotation (p = 0.002) moments for the pain flare as compared to the no flare group. In addition, for the pain flare as compared to controls, greater decreases in the knee flexion (p = 0.03) and internal rotation (p = 0.005) moments were found. Conclusions Individuals who adapt their gait to reduce knee joint loads may be less susceptible to exercise-induced pain flares. This highlights a potential role of gait biomechanics in short-term osteoarthritis pain fluctuations. The results also suggest that despite the chronic nature of osteoarthritis pain, the motor system’s ability to respond to nociceptive stimuli remains intact. Electronic supplementary material The online version of this article (10.1186/s12891-019-2493-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Katherine A Boyer
- Department of Kinesiology, University of Massachusetts-Amherst, 110 Totman Building 30 Eastman Lane, Amherst, MA, 01003, USA. .,University of Massachusetts-Amherst, Mechanical and Industrial Engineering, Amherst, USA. .,Department of Orthopedics and Physical Rehabilitation, University of Massachusetts Medical School, Worcester, USA.
| | - Jocelyn F Hafer
- Department of Kinesiology, University of Massachusetts-Amherst, 110 Totman Building 30 Eastman Lane, Amherst, MA, 01003, USA.,School of Kinesiology, University of Michigan, Central Campus Recreation Building, 401 Washtenaw Avenue, Ann Arbor, MI, 48109, USA
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20
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Fischer AG, Erhart-Hledik JC, Chu CR, Asay JL, Andriacchi TP. Changes in stair ascent biomechanics two to eight years after ACL reconstruction are associated with patient-reported outcomes. Gait Posture 2019; 69:91-95. [PMID: 30685631 DOI: 10.1016/j.gaitpost.2019.01.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 01/08/2019] [Accepted: 01/19/2019] [Indexed: 02/02/2023]
Abstract
BACKGROUND Anterior cruciate ligament (ACL) injury is often followed by quadriceps deficits that are apparent with gait analysis. The deficit frequently remains after ACL reconstruction (ACLR). As such, evaluation of ACLR patients could be enhanced by a simple method to detect quadriceps deficits. Analyzing forward trunk flexion during stair ascent has been suggested as an assessment of quadriceps function that can be visualized with relatively simple instrumentation. AIM The purpose of this study was to determine if trunk flexion angle (TFA) during stair ascent is associated with quadriceps function (as measured by the peak knee flexion moment (KFM)) at 2 and 8 years post-ACLR and if changes are associated with patient-reported outcomes (PRO). METHODS Fourteen subjects with unilateral primary ACLR performed three stair-ascending trials at two-time periods: 2 years (baseline) and 8 years (follow-up) post-ACLR. Paired Student t-tests determined differences in KFM and TFA. Associations between KFM, TFA, and PRO were determined through Pearson correlations. RESULTS Peak KFM during stair ascent significantly increased from baseline to follow-up (p = 0.01). Though there was no significant difference in TFA (p = 0.84) compared to baseline, 50% of subjects showed decreases in TFA. Further, subjects with reduced TFA during stair ascent at follow-up had significantly increased peak KFM (p = 0.029) and improvements in PRO (p = 0.001). DISCUSSION The results suggest that TFA during stair ascent can provide a simple method to assess changes in quadriceps function and pain over time following ACLR. Further analysis is needed to draw conclusions between knee osteoarthritis development and increases in TFA.
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Affiliation(s)
- Arielle G Fischer
- BioMotion Laboratory, Department of Mechanical Engineering, Stanford University, CA, United States; Palo Alto Veterans Hospital, Palo Alto, CA, United States.
| | - Jennifer C Erhart-Hledik
- BioMotion Laboratory, Department of Mechanical Engineering, Stanford University, CA, United States; Palo Alto Veterans Hospital, Palo Alto, CA, United States; Department of Orthopaedic Surgery, Stanford University, CA, United States
| | - Constance R Chu
- BioMotion Laboratory, Department of Mechanical Engineering, Stanford University, CA, United States; Palo Alto Veterans Hospital, Palo Alto, CA, United States; Department of Orthopaedic Surgery, Stanford University, CA, United States
| | - Jessica L Asay
- BioMotion Laboratory, Department of Mechanical Engineering, Stanford University, CA, United States; Palo Alto Veterans Hospital, Palo Alto, CA, United States
| | - Thomas P Andriacchi
- BioMotion Laboratory, Department of Mechanical Engineering, Stanford University, CA, United States; Department of Orthopaedic Surgery, Stanford University, CA, United States
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21
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Fischer AG, Erhart-Hledik JC, Asay JL, Chu CR, Andriacchi TP. Activating the somatosensory system enhances net quadriceps moment during gait. J Biomech 2019; 82:149-155. [DOI: 10.1016/j.jbiomech.2018.10.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 08/09/2018] [Accepted: 10/20/2018] [Indexed: 12/17/2022]
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22
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Edd SN, Omoumi P, Andriacchi TP, Jolles BM, Favre J. Modeling knee osteoarthritis pathophysiology using an integrated joint system (IJS): a systematic review of relationships among cartilage thickness, gait mechanics, and subchondral bone mineral density. Osteoarthritis Cartilage 2018; 26:1425-1437. [PMID: 30056214 DOI: 10.1016/j.joca.2018.06.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 06/08/2018] [Accepted: 06/26/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To introduce an integrated joint system (IJS) model of joint health and osteoarthritis (OA) pathophysiology through a systematic review of the cross-sectional relationships among three knee properties (cartilage thickness, gait mechanics, and subchondral bone mineral density). METHODS Searches using keywords associated with the three knee properties of interest were performed in PubMed, Scopus, and Ovid databases. English-language articles reporting cross-sectional correlations between at least two knee properties in healthy or tibiofemoral OA human knees were included. A narrative synthesis of the data was conducted. RESULTS Of the 5600 retrieved articles, 13 were included, eight of which reported relationships between cartilage thickness and gait mechanics. The 744 tested knees were separated into three categories based on knee health: 199 healthy, 340 at-risk/early OA, and 205 late OA knees. Correlations between knee adduction moment and medial-to-lateral cartilage thickness ratios were generally positive in healthy, inconclusive in at-risk/early OA, and negative in late OA knees. Knee adduction moment was positively correlated with medial-to-lateral tibial subchondral bone mineral density ratios in knees of all health categories. One study reported a positive correlation between lateral tibial subchondral bone mineral density and femoral cartilage thickness in at-risk/early OA knees. CONCLUSIONS The correlations identified between knee properties in this review agreed with the proposed relationship-based IJS model of OA pathophysiology. Accordingly, the IJS model could provide insights into overcoming current barriers to developing disease-modifying treatments by considering multiple aspects of OA disease, aspects that could be assessed simultaneously at an in vivo system level.
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Affiliation(s)
- S N Edd
- Centre Hospitalier Universitaire Vaudois (CHUV), University of Lausanne (UNIL), Department of Musculoskeletal Medicine (DAL), Swiss BioMotion Lab, Lausanne, Switzerland.
| | - P Omoumi
- Centre Hospitalier Universitaire Vaudois (CHUV), University of Lausanne (UNIL), Department of Diagnostic and Interventional Radiology, Lausanne, Switzerland.
| | - T P Andriacchi
- Department of Mechanical Engineering, Stanford, CA, USA; Palo Alto Veterans Affairs, Palo Alto, CA, USA; Department of Orthopaedic Surgery, Stanford University Medical Center, Stanford, CA, USA.
| | - B M Jolles
- Centre Hospitalier Universitaire Vaudois (CHUV), University of Lausanne (UNIL), Department of Musculoskeletal Medicine (DAL), Swiss BioMotion Lab, Lausanne, Switzerland; Ecole Polytechnique Fédérale de Lausanne (EPFL), Institute of Microengineering, Lausanne, Switzerland.
| | - J Favre
- Centre Hospitalier Universitaire Vaudois (CHUV), University of Lausanne (UNIL), Department of Musculoskeletal Medicine (DAL), Swiss BioMotion Lab, Lausanne, Switzerland.
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23
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Asay JL, Erhart-Hledik JC, Andriacchi TP. Changes in the total knee joint moment in patients with medial compartment knee osteoarthritis over 5 years. J Orthop Res 2018; 36:2373-2379. [PMID: 29611879 DOI: 10.1002/jor.23908] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Accepted: 03/23/2018] [Indexed: 02/04/2023]
Abstract
Progression of medial compartment knee osteoarthritis (OA) has been associated with repetitive mechanical loading during walking, often characterized by the peak knee adduction (KAM) and knee flexion moments (KFM). However, the relative contributions of these components to the knee total joint moment (TJM) can change as the disease progresses since KAM and KFM are influenced by different factors that change over time. This study tested the hypothesis that the relative contributions of KAM, KFM, and the rotational moment (KRM) to the TJM change over time in subjects with medial compartment knee OA. Patients with medial compartment knee OA (n = 19) were tested walking at their self-selected speed at baseline and a 5-year follow-up. For each frame during stance, the TJM was calculated using the KAM, KFM, and KRM. The peaks of the TJM and the relative contributions of the moment components at the time of the peaks of the TJM were tested for changes between baseline and follow-up. The percent contribution of KFM to the first peak of the TJM (TJM1) significantly decreased (p < 0.001) and the percent contribution of KAM to TJM1 significantly increased (p < 0.001), while the magnitude of the TJM1 did not significantly change over the 5-year follow-up. These gait changes with disease progression appear to maintain a constant TJM1, but the transition from a KFM to a KAM dominance appears to reflect gait changes associated with progressing OA and pain. Thus, the TJM and its component analysis captures a comprehensive metric for total loading on the knee over time. Published 2018. This article is a U.S. Government work and is in the public domain in the USA. 36:2373-2379, 2018.
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Affiliation(s)
- Jessica L Asay
- VA Palo Alto Health Care System, Palo Alto, California.,Department of Mechanical Engineering, Stanford University, 452 Escondido Mall, Building 520, Room 243, Stanford, California
| | - Jennifer C Erhart-Hledik
- Department of Mechanical Engineering, Stanford University, 452 Escondido Mall, Building 520, Room 243, Stanford, California.,Department of Orthopedic Surgery, Stanford University Medical Center, Stanford, California
| | - Thomas P Andriacchi
- VA Palo Alto Health Care System, Palo Alto, California.,Department of Mechanical Engineering, Stanford University, 452 Escondido Mall, Building 520, Room 243, Stanford, California.,Department of Orthopedic Surgery, Stanford University Medical Center, Stanford, California
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Boyer KA. Biomechanical Response to Osteoarthritis Pain Treatment May Impair Long-Term Efficacy. Exerc Sport Sci Rev 2018; 46:121-128. [PMID: 29346158 DOI: 10.1249/jes.0000000000000141] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Pain has an important physiologic role and acts with or stimulates motor system adaptations to protect tissue from threats of damage. Although clinically beneficial, removing the protective pain response may have negative consequence in osteoarthritis, a mechanically mediated disease. We hypothesize motor system adaptations to joint pain and its treatment may impact osteoarthritis progression, thereby limiting efficacy of pain therapies.
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Affiliation(s)
- Katherine A Boyer
- Departments of Kinesiology and Mechanical and Industrial Engineering, University of Massachusetts-Amherst, Amherst, MA.,Departments of Kinesiology and Mechanical and Industrial Engineering, University of Massachusetts-Amherst, Amherst, MA
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Jafarnezhadgero AA, Oliveira AS, Mousavi SH, Madadi-Shad M. Combining valgus knee brace and lateral foot wedges reduces external forces and moments in osteoarthritis patients. Gait Posture 2018; 59:104-110. [PMID: 29028621 DOI: 10.1016/j.gaitpost.2017.09.040] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 09/23/2017] [Accepted: 09/28/2017] [Indexed: 02/02/2023]
Abstract
Osteoarthritis progression can be related to the external knee adduction and flexion moments during walking. Lateral foot wedges and knee braces have been used as treatment for osteoarthritis, but little is known about their influence on knee joint moments generated in the sagittal and frontal planes. Therefore, the aim of the present study was determine the effects of the isolated and combined use of valgus knee brace and lateral wedge foot orthotic on peak forces and moments during gait in knee osteoarthritis patients. Twenty four males (age: 62.1±2.0years) with varus alignment, symptomatic medial compartment knee osteoarthritis participated in this study. Subjects walked over ground at preferred speed in four conditions: (1) no assistive device (control); (2) using lateral wedges, (3) using knee braces, and (4) using both lateral wedges and knee braces. Ground reaction forces (GRF) and moments, as well as lower limb kinematics were recorded. Peak GRF, vertical loading rate, free moment, external knee adduction and flexion moments were compared across conditions. The concurrent use of lateral wedge and knee brace reduced the first peak GRF in the vertical (6%, p=0.002), anterior-posterior (30%, p=0.028) and medial-lateral directions (44%, p=0.029). Moreover, the use of these devices reduced the peak external knee adduction moment (25%, p=0.019), but not the external flexion moment and free moment (p>0.05). The combined use of lateral wedges and knee braces can reduce medial-lateral knee joint loading, but despite reduced peak forces in the sagittal plane, these device do not reduce joint moments.
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Affiliation(s)
- Amir Ali Jafarnezhadgero
- Department of Physical Education and Sport Sciences, Faculty of Educational Science and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran.
| | - Anderson S Oliveira
- Department of Materials and Production, Aalborg University, Fibigerstræde 16, building 4, DK-9220 Aalborg E, Denmark
| | - Seyed Hamed Mousavi
- Department of Sports Medicine, University Medical Center Groningen, The Netherlands
| | - Morteza Madadi-Shad
- Department of Physical Education and Sport Sciences, Faculty of Educational Science and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
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Yu X, Zhao L, Yu Z, Yu C, Bi J, Sun B, Cong H. Sivelestat sodium hydrate improves post-traumatic knee osteoarthritis through nuclear factor-κB in a rat model. Exp Ther Med 2017; 14:1531-1537. [PMID: 28810618 PMCID: PMC5526152 DOI: 10.3892/etm.2017.4684] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 03/10/2017] [Indexed: 12/15/2022] Open
Abstract
As a specific inhibitor of neutrophil elastase, sivelestat sodium hydrate has primarily been used in the treatment of acute lung injury caused by various factors since its approval in 2002. Sivelestat sodium hydrate also improves post-traumatic knee osteoarthritis (KOA), although its underlying mechanisms of action have yet to be elucidated. The aim of the current study was to determine if sivelestat sodium hydrate improves post-traumatic KOA through nuclear factor (NF)-κB in a rat model. Treatment with sivelestat sodium hydrate significantly inhibited the induction of structural changes and significantly increased the vertical episode count and ipsilateral static weight bearing of the joint in KOA rats (all P<0.01). Sivelestat sodium hydrate significantly inhibited tumor necrosis factor-α and interleukin-6 production, serum nitrite levels, inducible nitric oxide synthase protein expression and high mobility group box 1 (HMGB1) secretion in KOA rats compared with the model group (all P<0.01). Sivelestat sodium hydrate also significantly suppressed p50/p65 DNA binding activity and NF-κB and phosphorylated inhibitor of κB protein expression in the joints of KOA rats compared with the model group (all P<0.01). These results suggest that sivelestat sodium hydrate improves post-traumatic KOA through HMGB1 and NF-κB in rats.
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Affiliation(s)
- Xiaofeng Yu
- Department of Joint Surgery, Weihai Central Hospital, Weihai, Shandong 264400, P.R. China
| | - Lijun Zhao
- Department of Operating Theatre, Weihai Central Hospital, Weihai, Shandong 264400, P.R. China
| | - Zhiping Yu
- Department of Joint Surgery, Weihai Central Hospital, Weihai, Shandong 264400, P.R. China
| | - Changzheng Yu
- Department of Joint Surgery, Weihai Central Hospital, Weihai, Shandong 264400, P.R. China
| | - Jianfei Bi
- Department of Joint Surgery, Weihai Central Hospital, Weihai, Shandong 264400, P.R. China
| | - Binglong Sun
- Department of Joint Surgery, Weihai Central Hospital, Weihai, Shandong 264400, P.R. China
| | - Haibo Cong
- Department of Joint Surgery, Weihai Central Hospital, Weihai, Shandong 264400, P.R. China
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Edd SN, Favre J, Blazek K, Omoumi P, Asay JL, Andriacchi TP. Altered gait mechanics and elevated serum pro-inflammatory cytokines in asymptomatic patients with MRI evidence of knee cartilage loss. Osteoarthritis Cartilage 2017; 25:899-906. [PMID: 28064033 DOI: 10.1016/j.joca.2016.12.029] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 12/19/2016] [Accepted: 12/28/2016] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To test if sagittal plane gait mechanics parameters and serum inflammation levels differ between healthy asymptomatic subjects and asymptomatic subjects with magnetic resonance imaging (MRI) evidence of cartilage loss. DESIGN Gait mechanics and resting serum tumor necrosis factor-α (TNFα) concentrations were measured for two groups of asymptomatic subjects recruited for a previous study: Pre-Osteoarthritis (OA) subjects had MRI evidence of partial- or full-thickness knee cartilage loss in at least one compartment (n = 52 (30 female), 1.7 ± 0.1 m, 85.3 ± 18.9 kg, 44 ± 11 years); Control subjects had no MRI features of cartilage loss, osteophytes, bone marrow lesions, nor meniscal pathology in either knee (n = 26 (13 female), 1.7 ± 0.1 m, 74.6 ± 14.9 kg, 34 ± 10 years). Discrete measures of sagittal plane gait kinematics and kinetics were compared between subject groups and adjusted for age and body mass index (BMI) using analysis of covariance (ANCOVA). Serum TNFα concentrations were compared between groups using bootstrap t-test. RESULTS The Pre-OA group had less extended knees (P = 0.021) and decreased maximum external knee extension moment (P = 0.0062) in terminal stance during gait, as well as increased resting serum TNFα concentration (P = 0.040) as compared to Control subjects. There were no group differences in heel strike flexion angle (P = 0.14), in maximum knee flexion moment (P = 0.91), nor in first peak knee adduction moment (KAM) (post-hoc analysis, P = 0.39). CONCLUSIONS The finding that asymptomatic subjects with cartilage loss had gait and inflammatory characteristics similar to those previously reported in symptomatic OA patients supports the idea that there are specific mechanical and biological factors that precede the onset of knee pain in the pathogenesis of OA.
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Affiliation(s)
- S N Edd
- Department of Mechanical Engineering, Stanford, CA, USA; Palo Alto Veterans Affairs, Palo Alto, CA, USA; Department of Musculoskeletal Medicine, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland.
| | - J Favre
- Department of Musculoskeletal Medicine, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland.
| | - K Blazek
- Department of Mechanical Engineering, Stanford, CA, USA; Palo Alto Veterans Affairs, Palo Alto, CA, USA.
| | - P Omoumi
- Department of Diagnostic and Interventional Radiology, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland.
| | - J L Asay
- Department of Mechanical Engineering, Stanford, CA, USA; Palo Alto Veterans Affairs, Palo Alto, CA, USA.
| | - T P Andriacchi
- Department of Mechanical Engineering, Stanford, CA, USA; Palo Alto Veterans Affairs, Palo Alto, CA, USA; Department of Orthopaedic Surgery, Stanford University Medical Center, Stanford, CA, USA.
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Holsgaard-Larsen A, Clausen B, Søndergaard J, Christensen R, Andriacchi TP, Roos EM. The effect of instruction in analgesic use compared with neuromuscular exercise on knee-joint load in patients with knee osteoarthritis: a randomized, single-blind, controlled trial. Osteoarthritis Cartilage 2017; 25:470-480. [PMID: 27836677 DOI: 10.1016/j.joca.2016.10.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 10/19/2016] [Accepted: 10/31/2016] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To investigate the effect of a neuro-muscular exercise (NEMEX) therapy program compared with instructions in optimized analgesics and anti-inflammatory drug use (PHARMA), on measures of knee-joint load in people with mild to moderate knee osteoarthritis (OA). We hypothesized that knee joint loading during walking would be reduced by NEMEX and potentially increased by PHARMA. DESIGN Single-blind, randomized controlled trial (RCT) comparing NEMEX therapy twice a week with PHARMA. Participants with mild-to-moderate medial tibiofemoral knee OA were randomly allocated (1:1) to one of two 8-week treatments. Primary outcome was change in knee load during walking (Knee Index, a composite score from all three planes based on 3D movement analysis) after 8 weeks of intervention. Secondary outcomes were frontal plane peak knee adduction moment (KAM), Knee Injury and Osteoarthritis Outcome Scores (KOOS) and functional performance tests. RESULTS Ninety three participants (57% women, 58 ± 8 years with a body mass index [BMI] of 27 ± 4 kg/m2 (mean ± standard deviation [SD])) were randomized to NEMEX group (n = 47) or PHARMA (n = 46); data from 44 (94%) and 41 (89%) participants respectively, were available at follow-up. 49% of the participants in NEMEX and only 7% in PHARMA demonstrated good compliance. We found no difference in the primary outcome as evaluated by the Knee Index -0.07 [-0.17; 0.04] Nm/%BW HT. Secondary outcomes largely supported this finding. CONCLUSIONS We found no difference in the primary outcome; knee joint load change during walking from a NEMEX program vs information on the recommended use of analgesics and anti-inflammatory drugs. ClinicalTrials.gov Identifier: NCT01638962 (July 3, 2012). Ethical Committee: S-20110153.
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Affiliation(s)
- A Holsgaard-Larsen
- Orthopaedic Research Unit, Department of Orthopaedics and Traumatology, Odense University Hospital, Odense, Denmark; Department of Clinical Research, University of Southern Denmark, Odense, Denmark.
| | - B Clausen
- Research Unit for Musculoskeletal Function and Physiotherapy, Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
| | - J Søndergaard
- Research Unit for General Practice, Institute of Public Health, University of Southern Denmark, Odense, Denmark
| | - R Christensen
- Musculoskeletal Statistics Unit, The Parker Institute, Bispebjerg & Frederiksberg Hospital, Copenhagen, Denmark
| | - T P Andriacchi
- Departments of Mechanical Engineering and Orthopaedic Surgery, Stanford University, Stanford, CA, USA; VA Joint Preservation Center, Palo Alto, CA, USA
| | - E M Roos
- Research Unit for Musculoskeletal Function and Physiotherapy, Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
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Hall M, Bennell KL, Wrigley TV, Metcalf BR, Campbell PK, Kasza J, Paterson KL, Hunter DJ, Hinman RS. The knee adduction moment and knee osteoarthritis symptoms: relationships according to radiographic disease severity. Osteoarthritis Cartilage 2017; 25:34-41. [PMID: 27616685 DOI: 10.1016/j.joca.2016.08.014] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 08/29/2016] [Accepted: 08/31/2016] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To investigate relationships between external knee adduction moment parameters (KAM) and osteoarthritis (OA) symptoms according to disease severity. DESIGN 164 participants with symptomatic medial knee OA were included. Radiographic severity was graded by (1) Kellgren & Lawrence (KL) scale (Grade 2, n = 49; Grade, n = 52; Grade 4, n = 63) and; (2) medial tibiofemoral joint space narrowing (JSN) (Grade 1, n = 47; Grade 2, n = 50; Grade 3, n = 67). KAM-related parameters (peak KAM, KAM impulse and cumulative load) were determined from three-dimensional gait analysis and pedometry. Cumulative load was determined by multiplying KAM impulse by the average number of steps/day recorded over at least 5 days. Symptoms were assessed via numeric rating scale ((NRS), pain) and Western Ontario and McMaster Universities (WOMAC) Osteoarthritis Index (pain and physical function). Relationships between KAM parameters (independent variables) and symptoms (dependent variables) were evaluated by radiographic severity using linear models, adjusting for covariates. RESULTS In mild disease (either KL Grade 2 or JSN Grade 1), there were no associations between KAM and symptoms. In moderate disease of KL Grade 3, higher KAM impulse was associated with greater WOMAC pain. In severe disease (KL Grade 4), higher KAM impulse was associated with less WOMAC pain (KL Grade 4), while higher peak KAM was associated with better function (KL Grade 4). Higher cumulative knee adduction load was associated with less pain on both NRS and WOMAC (JSN Grade 3) as well as better function (both JSN Grade 3 and KL Grade 4). CONCLUSIONS Relationships between KAM-related parameters and symptoms differ according to underlying radiographic OA severity.
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Affiliation(s)
- M Hall
- Centre for Health, Exercise and Sports Medicine, Department of Physiotherapy, School of Health Sciences, Melbourne, The University of Melbourne, VIC, Australia
| | - K L Bennell
- Centre for Health, Exercise and Sports Medicine, Department of Physiotherapy, School of Health Sciences, Melbourne, The University of Melbourne, VIC, Australia
| | - T V Wrigley
- Centre for Health, Exercise and Sports Medicine, Department of Physiotherapy, School of Health Sciences, Melbourne, The University of Melbourne, VIC, Australia
| | - B R Metcalf
- Centre for Health, Exercise and Sports Medicine, Department of Physiotherapy, School of Health Sciences, Melbourne, The University of Melbourne, VIC, Australia
| | - P K Campbell
- Centre for Health, Exercise and Sports Medicine, Department of Physiotherapy, School of Health Sciences, Melbourne, The University of Melbourne, VIC, Australia
| | - J Kasza
- Centre for Health, Exercise and Sports Medicine, Department of Physiotherapy, School of Health Sciences, Melbourne, The University of Melbourne, VIC, Australia; Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, VIC, Australia
| | - K L Paterson
- Centre for Health, Exercise and Sports Medicine, Department of Physiotherapy, School of Health Sciences, Melbourne, The University of Melbourne, VIC, Australia
| | - D J Hunter
- Institute of Bone and Joint Research, The Kolling Institute, Sydney Medical School, The University of Sydney, Sydney, Australia; Rheumatology Department, Royal North Shore Hospital, Sydney, Australia
| | - R S Hinman
- Centre for Health, Exercise and Sports Medicine, Department of Physiotherapy, School of Health Sciences, Melbourne, The University of Melbourne, VIC, Australia.
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Erhart-Hledik JC, Favre J, Andriacchi TP. New insight in the relationship between regional patterns of knee cartilage thickness, osteoarthritis disease severity, and gait mechanics. J Biomech 2015; 48:3868-75. [DOI: 10.1016/j.jbiomech.2015.09.033] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 09/02/2015] [Accepted: 09/24/2015] [Indexed: 10/22/2022]
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Ginnerup-Nielsen E, Christensen R, Bliddal H, Zangger G, Hansen L, Henriksen M. Improved gait in persons with knee related mobility limitations by a rosehip food supplement: A randomized, double-blind, placebo-controlled trial. Gait Posture 2015; 42:340-7. [PMID: 26234471 DOI: 10.1016/j.gaitpost.2015.07.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Revised: 06/15/2015] [Accepted: 07/06/2015] [Indexed: 02/02/2023]
Abstract
PURPOSE To evaluate the efficacy of a specialized rosehip powder nutraceutical on the biomechanical function of the knee joint during walking in individuals with knee-related walking limitations. METHODS Randomized, participant and outcome assessor blinded trial. Participants with self-reported knee-related walking limitations were randomized (1:1) to receive three capsules/day of either rosehip powder or identically appearing placebo capsules for 12 weeks. At baseline and the 12 weeks follow-up, 3-dimensional gait analyses were performed from which the peak resultant knee moment was selected as primary outcome. Secondary outcomes included sagittal and frontal plane knee joint moments, knee joint kinematics, peaks in the vertical ground reaction forces, and self-selected walking speeds. Analyses were based on ANCOVA with the 'Intention-To-Treat' (ITT) population, defined as all randomized participants using last observation carried forward imputation for missing data. RESULTS 100 participants were randomized to rosehip (n=50) or placebo (n=50) and defined the ITT population. Of these 94 completed the study (47 in each group). There were statistically significant group differences in the change from baseline in the primary outcome: the resultant knee moment (0.06 nm/kg, 95%CI: 0.00-0.12; P=0.039) and in the peaks in the sagittal plane moments and kinematics during the stance phase of walking with the rosehip group exhibiting greater joint moments and more knee joint flexion during walking than the placebo group. CONCLUSION A daily intake of rosehip powder for 12 weeks improved important indices of knee joint function and dynamics during walking compared to placebo in persons with knee-related walking limitations.
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Affiliation(s)
- Elisabeth Ginnerup-Nielsen
- The Parker Institute, Department of Rheumatology, Copenhagen University Hospitals at Bispebjerg-Frederiksberg, Copenhagen, Denmark
| | - Robin Christensen
- The Parker Institute, Department of Rheumatology, Copenhagen University Hospitals at Bispebjerg-Frederiksberg, Copenhagen, Denmark
| | - Henning Bliddal
- The Parker Institute, Department of Rheumatology, Copenhagen University Hospitals at Bispebjerg-Frederiksberg, Copenhagen, Denmark
| | - Graziella Zangger
- The Parker Institute, Department of Rheumatology, Copenhagen University Hospitals at Bispebjerg-Frederiksberg, Copenhagen, Denmark
| | - Lisbeth Hansen
- The Parker Institute, Department of Rheumatology, Copenhagen University Hospitals at Bispebjerg-Frederiksberg, Copenhagen, Denmark
| | - Marius Henriksen
- The Parker Institute, Department of Rheumatology, Copenhagen University Hospitals at Bispebjerg-Frederiksberg, Copenhagen, Denmark.
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Ageberg E, Roos EM. Neuromuscular exercise as treatment of degenerative knee disease. Exerc Sport Sci Rev 2015; 43:14-22. [PMID: 25390299 DOI: 10.1249/jes.0000000000000030] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Exercise is recommended as first-line treatment of degenerative knee disease. Our hypothesis is that neuromuscular exercise is feasible and at least as effective as traditionally used strength or aerobic training but aims to target more closely the sensorimotor deficiencies and functional instability associated with the degenerative knee disease than traditionally used training methods.
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Affiliation(s)
- Eva Ageberg
- 1Department of Health Sciences, Lund University, Lund, Sweden; and 2Institute of Sports and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
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Chang AH, Moisio KC, Chmiel JS, Eckstein F, Guermazi A, Prasad PV, Zhang Y, Almagor O, Belisle L, Hayes K, Sharma L. External knee adduction and flexion moments during gait and medial tibiofemoral disease progression in knee osteoarthritis. Osteoarthritis Cartilage 2015; 23:1099-106. [PMID: 25677110 PMCID: PMC4470726 DOI: 10.1016/j.joca.2015.02.005] [Citation(s) in RCA: 181] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 12/31/2014] [Accepted: 02/01/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Test the hypothesis that greater baseline peak external knee adduction moment (KAM), KAM impulse, and peak external knee flexion moment (KFM) during the stance phase of gait are associated with baseline-to-2-year medial tibiofemoral cartilage damage and bone marrow lesion progression, and cartilage thickness loss. METHODS Participants all had knee OA in at least one knee. Baseline peak KAM, KAM impulse, and peak KFM (normalized to body weight and height) were captured and computed using a motion analysis system and six force plates. Participants underwent MRI of both knees at baseline and 2 years later. To assess the association between baseline moments and baseline-to-2-year semiquantitative cartilage damage and bone marrow lesion progression and quantitative cartilage thickness loss, we used logistic and linear regressions with generalized estimating equations (GEE), adjusting for gait speed, age, gender, disease severity, knee pain severity, and medication use. RESULTS The sample consisted of 391 knees (204 persons): mean age 64.2 years (SD 10.0); BMI 28.4 kg/m(2) (5.7); 156 (76.5%) women. Greater baseline peak KAM and KAM impulse were each associated with worsening of medial bone marrow lesions, but not cartilage damage. Higher baseline KAM impulse was associated with 2-year medial cartilage thickness loss assessed both as % loss and as a threshold of loss, whereas peak KAM was related only to % loss. There was no relationship between baseline peak KFM and any medial disease progression outcome measures. CONCLUSION Findings support targeting KAM parameters in an effort to delay medial OA disease progression.
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Affiliation(s)
- A H Chang
- Department of Physical Therapy and Human Movement Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
| | - K C Moisio
- Department of Physical Therapy and Human Movement Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
| | - J S Chmiel
- Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
| | - F Eckstein
- Institute of Anatomy, Paracelsus Medical University Salzburg & Nuremberg, Salzburg, Austria.
| | - A Guermazi
- Department of Radiology, Boston University School of Medicine, Boston, MA, USA.
| | - P V Prasad
- Department of Radiology, NorthShore University HealthSystem, Evanston, IL, USA.
| | - Y Zhang
- Department of Physical Therapy and Human Movement Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
| | - O Almagor
- Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
| | - L Belisle
- Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
| | - K Hayes
- Department of Physical Therapy and Human Movement Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
| | - L Sharma
- Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
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The role of inflammation in the initiation of osteoarthritis after meniscal damage. J Biomech 2015; 48:1420-6. [PMID: 25798759 DOI: 10.1016/j.jbiomech.2015.02.035] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 02/15/2015] [Indexed: 11/23/2022]
Abstract
Meniscal damage and meniscectomy lead to subsequent osteoarthritis (OA) of the knee joint through multiple and diverse mechanisms, yet the interaction of these mechanisms remains unknown. Therefore, the aim of this review is to suggest the multi-scale, multi-faceted components involved between meniscal injury or meniscectomy and the initiation of OA. There is evidence of structural, mechanical, and biological changes after meniscal damage, all of which can be greatly affected by the presence of local or systemic inflammation. Meniscal damage or resection causes changes in knee mechanics during walking, resulting in altered cartilage loading. Because cartilage is mechanically sensitive, these loading changes can initiate a catabolic effect, culminating in tissue degeneration. The evidence suggests that the addition of elevated inflammation at the time of meniscal damage or meniscectomy results in an accelerated progression toward cartilage degradation. Initial cartilage degradation produces inflammation and pain in conjunction with structural changes to the joint, thus perpetuating the cycle of altered cartilage loading and subsequent degradation. Furthermore, the inflammation secondary to obesity and aging introduces an increased risk of developing OA following meniscal injury. Therefore, an overall route between meniscal damage or resection and OA is presented here in a manner that considers two distinct pathways; these pathways reflect the absence or presence of conditions that cause elevated inflammation.
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Clausen B, Holsgaard-Larsen A, Søndergaard J, Christensen R, Andriacchi TP, Roos EM. The effect on knee-joint load of instruction in analgesic use compared with neuromuscular exercise in patients with knee osteoarthritis: study protocol for a randomized, single-blind, controlled trial (the EXERPHARMA trial). Trials 2014; 15:444. [PMID: 25399048 PMCID: PMC4240848 DOI: 10.1186/1745-6215-15-444] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Accepted: 10/23/2014] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Knee osteoarthritis (OA) is a mechanically driven disease, and it is suggested that medial tibiofemoral knee-joint load increases with pharmacologic pain relief, indicating that pharmacologic pain relief may be positively associated with disease progression. Treatment modalities that can both relieve pain and reduce knee-joint load would be preferable. The knee-joint load is influenced by functional alignment of the trunk, pelvis, and lower-limb segments with respect to the knee, as well as the ground-reaction force generated during movement. Neuromuscular exercise can influence knee load and decrease knee pain. It includes exercises to improve balance, muscle activation, functional alignment, and functional knee stability. The primary objective of this randomized controlled trial (RCT) is to investigate the efficacy of a NEuroMuscular EXercise (NEMEX) therapy program, compared with optimized analgesics and antiinflammatory drug use, on the measures of knee-joint load in people with mild to moderate medial tibiofemoral knee osteoarthritis. METHOD/DESIGN One hundred men and women with mild to moderate medial knee osteoarthritis will be recruited from general medical practices and randomly allocated (1:1) to one of two 8-week treatments, either (a) NEMEX therapy twice a week or (b) information on the recommended use of analgesics and antiinflammatory drugs (acetaminophen and oral NSAIDs) via a pamphlet and video materials. The primary outcome is change in knee load during walking (the Knee Index, a composite score of the first external peak total reaction moment on the knee joint from all three planes based on 3D movement analysis) after 8 weeks of intervention. Secondary outcomes include changes in the external peak knee-adduction moment and impulse and functional performance measures, in addition to changes in self-reported pain, function, health status, and quality of life. DISCUSSION These findings will help determine whether 8 weeks of neuromuscular exercise is superior to optimized use of analgesics and antiinflammatory drugs regarding knee-joint load, pain and physical function in people with mild to moderate knee osteoarthritis. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT01638962 (July 3, 2012).
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Affiliation(s)
- Brian Clausen
- Research Unit for Musculoskeletal Function and Physiotherapy, Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark.
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Chehab EF, Favre J, Erhart-Hledik JC, Andriacchi TP. Baseline knee adduction and flexion moments during walking are both associated with 5 year cartilage changes in patients with medial knee osteoarthritis. Osteoarthritis Cartilage 2014; 22:1833-9. [PMID: 25211281 PMCID: PMC4369510 DOI: 10.1016/j.joca.2014.08.009] [Citation(s) in RCA: 231] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2014] [Revised: 07/04/2014] [Accepted: 08/16/2014] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To test the hypothesis that knee cartilage changes over 5 years are associated with baseline peak knee adduction moment (KAM) and peak knee flexion moment (KFM) during early stance. DESIGN Baseline KAM and KFM were measured in sixteen subjects with medial knee osteoarthritis (OA). Regional changes in cartilage thickness and changes in medial-to-lateral thickness ratio were quantified using magnetic resonance imaging (MRI) at baseline and again after 5 years. Multiple regression was used to determine whether baseline measures of KAM and KFM were associated with cartilage changes over 5 years. Associations with baseline pain score, Kellgren-Lawrence (KL) grade, walking speed, age, gender, and body mass index (BMI) were tested one-by-one in the presence of KAM and KFM. RESULTS Changes over 5 years in femoral medial-to-lateral thickness ratio were associated with baseline KAM, KFM, and pain score (R(2) = 0.60, P = 0.010), and most significantly with KAM (R(2) = 0.33, P = 0.019). Changes in tibial medial-to-lateral thickness ratio were associated with baseline KAM, KFM, and walking speed (R(2) = 0.49, P = 0.039), with KFM driving this association (R(2) = 0.40, P = 0.009). Changes in medial tibial thickness were associated with baseline KAM, KFM, and walking speed (R(2) = 0.49, P = 0.041); KFM also drove this association (R(2) = 0.42, P = 0.006). CONCLUSIONS The findings that the KAM has a greater influence on femoral cartilage change and the KFM has a greater influence on tibial cartilage change provide new insight into the tibiofemoral variations in cartilage changes associated with walking kinetics. These results suggest that both KAM and KFM should be considered when designing disease interventions as well as when assessing the risk for OA progression.
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Affiliation(s)
- Eric F. Chehab
- Department of Mechanical Engineering, Stanford, CA, United States,Department of Bioengineering, Stanford University, Stanford, CA, United States,Corresponding author: Eric F Chehab, 496 Lomita Mall, Durand Building, Room 061, Stanford, CA 94305-4038, United States, Phone: (650) 723-5793,
| | - Julien Favre
- Department of Mechanical Engineering, Stanford, CA, United States
| | - Jennifer C. Erhart-Hledik
- Department of Mechanical Engineering, Stanford, CA, United States,Palo Alto Veterans Affairs, Palo Alto, CA, United States
| | - Thomas P. Andriacchi
- Department of Mechanical Engineering, Stanford, CA, United States,Palo Alto Veterans Affairs, Palo Alto, CA, United States,Department of Orthopaedic Surgery, Stanford University Medical Center, Stanford, CA, United States
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The Nature of In Vivo Mechanical Signals That Influence Cartilage Health and Progression to Knee Osteoarthritis. Curr Rheumatol Rep 2014; 16:463. [DOI: 10.1007/s11926-014-0463-2] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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da Costa BR, Nüesch E, Kasteler R, Husni E, Welch V, Rutjes AWS, Jüni P. Oral or transdermal opioids for osteoarthritis of the knee or hip. Cochrane Database Syst Rev 2014; 2014:CD003115. [PMID: 25229835 PMCID: PMC10993204 DOI: 10.1002/14651858.cd003115.pub4] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Osteoarthritis is the most common form of joint disease and the leading cause of pain and physical disability in older people. Opioids may be a viable treatment option if people have severe pain or if other analgesics are contraindicated. However, the evidence about their effectiveness and safety is contradictory. This is an update of a Cochrane review first published in 2009. OBJECTIVES To determine the effects on pain, function, safety, and addiction of oral or transdermal opioids compared with placebo or no intervention in people with knee or hip osteoarthritis. SEARCH METHODS We searched the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, EMBASE and CINAHL (up to 28 July 2008, with an update performed on 15 August 2012), checked conference proceedings, reference lists, and contacted authors. SELECTION CRITERIA We included randomised or quasi-randomised controlled trials that compared oral or transdermal opioids with placebo or no treatment in people with knee or hip osteoarthritis. We excluded studies of tramadol. We applied no language restrictions. DATA COLLECTION AND ANALYSIS We extracted data in duplicate. We calculated standardised mean differences (SMDs) and 95% confidence intervals (CI) for pain and function, and risk ratios for safety outcomes. We combined trials using an inverse-variance random-effects meta-analysis. MAIN RESULTS We identified 12 additional trials and included 22 trials with 8275 participants in this update. Oral oxycodone was studied in 10 trials, transdermal buprenorphine and oral tapentadol in four, oral codeine in three, oral morphine and oral oxymorphone in two, and transdermal fentanyl and oral hydromorphone in one trial each. All trials were described as double-blind, but the risk of bias for other domains was unclear in several trials due to incomplete reporting. Opioids were more beneficial in pain reduction than control interventions (SMD -0.28, 95% CI -0.35 to -0.20), which corresponds to a difference in pain scores of 0.7 cm on a 10-cm visual analogue scale (VAS) between opioids and placebo. This corresponds to a difference in improvement of 12% (95% CI 9% to 15%) between opioids (41% mean improvement from baseline) and placebo (29% mean improvement from baseline), which translates into a number needed to treat (NNTB) to cause one additional treatment response on pain of 10 (95% CI 8 to 14). Improvement of function was larger in opioid-treated participants compared with control groups (SMD -0.26, 95% CI -0.35 to -0.17), which corresponds to a difference in function scores of 0.6 units between opioids and placebo on a standardised Western Ontario and McMaster Universities Arthritis Index (WOMAC) disability scale ranging from 0 to 10. This corresponds to a difference in improvement of 11% (95% CI 7% to 14%) between opioids (32% mean improvement from baseline) and placebo (21% mean improvement from baseline), which translates into an NNTB to cause one additional treatment response on function of 11 (95% CI 7 to 14). We did not find substantial differences in effects according to type of opioid, analgesic potency, route of administration, daily dose, methodological quality of trials, and type of funding. Trials with treatment durations of four weeks or less showed larger pain relief than trials with longer treatment duration (P value for interaction = 0.001) and there was evidence for funnel plot asymmetry (P value = 0.054 for pain and P value = 0.011 for function). Adverse events were more frequent in participants receiving opioids compared with control. The pooled risk ratio was 1.49 (95% CI 1.35 to 1.63) for any adverse event (9 trials; 22% of participants in opioid and 15% of participants in control treatment experienced side effects), 3.76 (95% CI 2.93 to 4.82) for drop-outs due to adverse events (19 trials; 6.4% of participants in opioid and 1.7% of participants in control treatment dropped out due to adverse events), and 3.35 (95% CI 0.83 to 13.56) for serious adverse events (2 trials; 1.3% of participants in opioid and 0.4% of participants in control treatment experienced serious adverse events). Withdrawal symptoms occurred more often in opioid compared with control treatment (odds ratio (OR) 2.76, 95% CI 2.02 to 3.77; 3 trials; 2.4% of participants in opioid and 0.9% of participants control treatment experienced withdrawal symptoms). AUTHORS' CONCLUSIONS The small mean benefit of non-tramadol opioids are contrasted by significant increases in the risk of adverse events. For the pain outcome in particular, observed effects were of questionable clinical relevance since the 95% CI did not include the minimal clinically important difference of 0.37 SMDs, which corresponds to 0.9 cm on a 10-cm VAS.
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Affiliation(s)
- Bruno R da Costa
- University of BernInstitute of Social and Preventive Medicine (ISPM)Finkenhubelweg 11BernBernSwitzerland3012
| | - Eveline Nüesch
- London School of Hygiene and Tropical MedicineFaculty of Epidemiology and Population HealthKeppel StreetLondonUK
| | - Rahel Kasteler
- University of BernInstitute of Social and Preventive Medicine (ISPM)Finkenhubelweg 11BernBernSwitzerland3012
| | - Elaine Husni
- Cleveland Clinic: Orthopedic and Rheumatologic InstituteDepartment of Rheumatic and Immunologic Diseases9500 Euclid Ave‐ A50ClevelandOHUSA44195
| | - Vivian Welch
- University of OttawaBruyere Research Institute43 Bruyere StreetOttawaONCanadaK1N 5C8
| | - Anne WS Rutjes
- University of BernInstitute of Social and Preventive Medicine (ISPM)Finkenhubelweg 11BernBernSwitzerland3012
| | - Peter Jüni
- University of BernInstitute of Social and Preventive Medicine (ISPM)Finkenhubelweg 11BernBernSwitzerland3012
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Moran K, Richter C, O'Connor NE. Letter to the editor regarding "Application of principal component analysis in clinical gait research" by Federolf and colleagues. J Biomech 2014; 47:1554-5. [PMID: 24630434 DOI: 10.1016/j.jbiomech.2014.01.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Accepted: 01/03/2014] [Indexed: 11/17/2022]
Affiliation(s)
- Kieran Moran
- Applied Sports Performance Research, School of Health and Human Performance, Dublin City University, Dublin, Ireland; Insight Centre for Data Analytics, Dublin City University, Dublin, Ireland.
| | - Chris Richter
- Applied Sports Performance Research, School of Health and Human Performance, Dublin City University, Dublin, Ireland; Insight Centre for Data Analytics, Dublin City University, Dublin, Ireland
| | - Noel E O'Connor
- Insight Centre for Data Analytics, Dublin City University, Dublin, Ireland
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Cobos EJ, Portillo-Salido E. "Bedside-to-Bench" Behavioral Outcomes in Animal Models of Pain: Beyond the Evaluation of Reflexes. Curr Neuropharmacol 2014; 11:560-91. [PMID: 24396334 PMCID: PMC3849784 DOI: 10.2174/1570159x113119990041] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Revised: 04/05/2013] [Accepted: 05/24/2013] [Indexed: 12/21/2022] Open
Abstract
Despite the myriad promising new targets and candidate analgesics recently identified in preclinical pain studies, little translation to novel pain medications has been generated. The pain phenotype in humans involves complex behavioral alterations, including changes in daily living activities and psychological disturbances. These behavioral changes are not reflected by the outcome measures traditionally used in rodents for preclinical pain testing, which are based on reflexes evoked by sensory stimuli of different types (mechanical, thermal or chemical). These measures do not evaluate the impact of the pain experience on the global behavior or disability of the animals, and therefore only consider a limited aspect of the pain phenotype. The development of relevant new outcomes indicative of pain to increase the validity of animal models of pain has been increasingly pursued over the past few years. The aim has been to translate “bedside-to-bench” outcomes from the human pain phenotype to rodents, in order to complement traditional pain outcomes by providing a closer and more realistic measure of clinical pain in rodents. This review summarizes and discusses the most important nonstandard outcomes for pain assessment in preclinical studies. The advantages and drawbacks of these techniques are considered, and their potential impact on the validation of potential analgesics is evaluated.
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Affiliation(s)
- Enrique J Cobos
- Department of Pharmacology, School of Medicine, University of Granada, Avenida de Madrid 11, 18012 Granada
| | - Enrique Portillo-Salido
- Drug Discovery and Preclinical Development, Esteve, Avenida Mare de Déu de Montserrat 221, 08041 Barcelona, Spain
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Henriksen M, Hunter DJ, Dam EB, Messier SP, Andriacchi TP, Lohmander LS, Aaboe J, Boesen M, Gudbergsen H, Bliddal H, Christensen R. Is increased joint loading detrimental to obese patients with knee osteoarthritis? A secondary data analysis from a randomized trial. Osteoarthritis Cartilage 2013; 21:1865-75. [PMID: 24135273 DOI: 10.1016/j.joca.2013.10.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 08/13/2013] [Accepted: 10/04/2013] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To investigate whether increased knee joint loading due to improved ambulatory function and walking speed following weight loss achieved over 16 weeks accelerates symptomatic and structural disease progression over a subsequent 1 year weight maintenance period in an obese population with knee osteoarthritis (OA). METHODS Data from a prospective study of weight loss in obese patients with knee OA (the CARtilage in obese knee OsteoarThritis (CAROT) study) were used to determine changes in knee joint compressive loadings (model estimated) during walking after a successful 16 week weight loss intervention. The participants were divided into 'Unloaders' (participants that reduced joint loads) and 'Loaders' (participants that increased joint loads). The primary symptomatic outcome was changes in knee symptoms, measured with the Knee injury and Osteoarthritis Outcome Score (KOOS) questionnaire, during a subsequent 52 weeks weight maintenance period. The primary structural outcome was changes in tibiofemoral cartilage loss assessed semi-quantitatively (Boston Leeds Knee Osteoarthritis Score (BLOKS) from MRI after the 52 weight maintenance period. RESULTS 157 participants (82% of the CAROT cohort) with medial and/or lateral knee OA were classified as Unloaders (n = 100) or Loaders (n = 57). The groups showed similar significant changes in symptoms (group difference: -2.4 KOOS points [95% CI -6.8:1.9]) and cartilage loss (group difference: -0.06 BLOKS points [95% CI -0.22:0.11) after 1 year, with no statistically significant differences between Loaders and Unloaders. CONCLUSION For obese patients undergoing a significant weight loss, increased knee joint loading for 1 year was not associated with accelerated symptomatic and structural disease progression compared to a similar weight loss group that had reduced ambulatory compressive knee joint loads. CLINICALTRIALSGOV NCT00655941.
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Affiliation(s)
- M Henriksen
- The Parker Institute, Department of Rheumatology, Copenhagen University Hospital, Frederiksberg, Copenhagen F, Denmark
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Gallelli L, Galasso O, Falcone D, Southworth S, Greco M, Ventura V, Romualdi P, Corigliano A, Terracciano R, Savino R, Gulletta E, Gasparini G, De Sarro G. The effects of nonsteroidal anti-inflammatory drugs on clinical outcomes, synovial fluid cytokine concentration and signal transduction pathways in knee osteoarthritis. A randomized open label trial. Osteoarthritis Cartilage 2013; 21:1400-8. [PMID: 23973155 DOI: 10.1016/j.joca.2013.06.026] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2013] [Revised: 06/20/2013] [Accepted: 06/27/2013] [Indexed: 02/02/2023]
Abstract
OBJECTIVE We investigated the effects of celecoxib, diclofenac, and ibuprofen on the disease-specific quality of life, synovial fluid cytokines and signal transduction pathways in symptomatic knee osteoarthritis (OA). DESIGN Ninety patients scheduled for a total knee arthroplasty (TKA) were randomized to six groups that were treated with low and high dosages of celecoxib, diclofenac or ibuprofen. At the time of the first admission (T0) and at surgery (T1 = 14 days after beginning of the nonsteroidal anti-inflammatory drugs (NSAIDs)), samples of knee synovial fluid were obtained from each patient for analysis. During the surgery the synovial tissue was harvested from the knee of patients. The Western Ontario and McMaster universities (WOMAC) score was used to evaluate the patient disease-specific quality of life at T0 and T1. Microarray tests performed at T0 and T1 were used to evaluate the effects of NSAIDs on Tumor necrosis factor (TNF)-alpha, Interleukin-6 (IL-6), IL8 and Vascular endothelial growth factor (VEGF) concentration in the synovial fluid. Western blot assays evaluated the effects of NSAIDs on MAP kinase (MAPK) signal transduction pathway in the synovial membrane. RESULTS NSAID treatment induced a statistically significant improvement in the WOMAC score and a statistically significant decrease in the IL-6, VEGF and TNF-alpha concentration in the synovial fluid. Higher dosages of NSAIDs provided a greater improvement in the disease-specific quality of life of patients and lower concentrations of pro-inflammatory cytokines in the synovial fluid. Inhibition of MAPKs was noted after NSAID treatment. CONCLUSION Short-term NSAID treatment improves the patient disease-specific quality of life with a parallel decrease in pro-inflammatory synovial fluid cytokine levels in knee OA. Signal transduction pathways may be involved in regulating the anti-inflammatory effects of NSAIDs. ClinicalTrial.gov: NCT01860833.
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Affiliation(s)
- L Gallelli
- Department of Health Science, School of Medicine, Magna Græcia University, Catanzaro, Italy
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Foot pressure pattern and its correlation with knee range of motion limitations for individuals with medial knee osteoarthritis. Arch Phys Med Rehabil 2013; 94:2502-2508. [PMID: 23916619 DOI: 10.1016/j.apmr.2013.07.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 07/24/2013] [Accepted: 07/25/2013] [Indexed: 11/21/2022]
Abstract
OBJECTIVE To determine the foot pressure pattern of individuals with medial knee osteoarthritis (OA) and to analyze its relation with knee flexion/extension range of motion. DESIGN Descriptive. SETTING Rehabilitation center. PARTICIPANTS Individuals with unilateral, painful medial knee OA (n=50; mean age, 75y; OA group) were enrolled as subjects, and young, healthy persons (n=50; mean age, 28y; young group) and elderly persons (n=44; mean age, 74y; elderly group) without any pain, deformity, or apparent OA changes in either knee were enrolled as controls. INTERVENTION Walking 10m at a comfortable speed. MAIN OUTCOME MEASURES Partial foot pressures as percentages of body weight (%PFP), anteroposterior length of the center of pressure (COP) path as a percentage of foot length (%Long), transverse width of the COP path as a percentage of foot width (%Trans), knee flexion/extension range of motion (in the OA group). RESULTS The %PFP values for the heel and hallux, %Long, and %Trans were all significantly lower in the OA group than in controls (P<.001, all). Within the OA group, a limited range of knee extension was significantly associated with a short %Long (P<.001) but not with %Trans. CONCLUSIONS Individuals with medial knee OA exhibited low pressure on the heel and hallux and short %Long of the COP path, and limitation of knee extension was associated with shortness of %Long. The shortness of %Long in the OA group likely resulted from insufficient knee extension during the heel-contact phase associated with low pressure on the heel. %Long is a useful parameter in gait analysis by using a foot pressure measurement system.
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Federolf PA, Boyer KA, Andriacchi TP. Application of principal component analysis in clinical gait research: identification of systematic differences between healthy and medial knee-osteoarthritic gait. J Biomech 2013; 46:2173-8. [PMID: 23910389 DOI: 10.1016/j.jbiomech.2013.06.032] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Revised: 06/28/2013] [Accepted: 06/30/2013] [Indexed: 10/26/2022]
Abstract
For a successful completion of a movement task the motor control system has to observe a multitude of internal constraints that govern the coordination of its segments. The purpose of this study was to apply principal component (PC) analysis to detect differences in the segmental coordination between healthy subjects and patients with medial knee osteoarthritis (OA). It was hypothesized that (1) systematic differences in patterns of whole body movement would be identifiable with this method even in small sample sized groups and that (2) these differences will include compensatory movements in the OA patients in both the lower and upper body segments. Marker positions and ground reaction forces of three gait trials of 5 healthy and 5 OA participants with full body marker sets were analyzed using a principal component analysis. Group differences in the PC-scores were determined for the first 10 PC-vectors and a linear combination of those PC-vectors where differences were found defined a discriminant vector. Projecting the original trials onto this discriminant vector yielded significant group differences (t(d=8)=3.011; p=0.017) with greater upper body movement in patients with knee OA that was correlated with the medial-lateral ground reaction force. These results help to characterize the adaptation of whole-body gait patterns to knee OA in a relatively small population and may provide an improved basis for the development of interventions to modify knee load. The PC-based motion analysis offered a highly sensitive approach to identify characteristic whole body patterns of movement associated with pathological gait.
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Affiliation(s)
- P A Federolf
- Mechanical Engineering, Stanford University, Stanford, CA, USA.
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Asay JL, Boyer KA, Andriacchi TP. Repeatability of gait analysis for measuring knee osteoarthritis pain in patients with severe chronic pain. J Orthop Res 2013; 31:1007-12. [PMID: 23508626 DOI: 10.1002/jor.22228] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Accepted: 08/15/2012] [Indexed: 02/04/2023]
Abstract
Gait measures are receiving increased attention in the evaluation of patients with knee osteoarthritis (OA). Yet, there remains a need to assess variability of gait analysis in patients with knee osteoarthritis over time and how pain affects variation in these gait parameters. The purpose of this study was to determine if important gait parameters, such as the knee adduction moment, knee flexion moment, peak vertical ground reaction force, and speed, were repeatable in patients with mild-to-moderate knee OA over a trial period of 12 weeks. Six patients were enrolled in this cross-over study design after meeting strict inclusion criteria. Gait tests were conducted three times at 4 week intervals and once after the placebo arm of a randomized treatment sequence; each gait test followed a 2-week period of receiving a placebo for a pain modifying drug. Repeatability for each gait variable was found using intraclass correlation coefficients (ICC) with a two-way random model. This study found that the knee adduction moment was repeatable throughout the four gait tests. However, normalized peak vertical ground reaction force and knee flexion moment were not as repeatable, varying with pain. This suggests that these gait outcomes could offer a more objective way to measure a patient's level of pain.
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Affiliation(s)
- Jessica L Asay
- Center for Tissue Regeneration, Repair, and Restoration, Palo Alto Health Care System, Palo Alto, California, USA.
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Tehrani M, Aguiar M, Katz JD. Narcotics in rheumatology. Health Serv Insights 2013; 6:39-45. [PMID: 25114559 PMCID: PMC4089834 DOI: 10.4137/hsi.s10461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Patients with rheumatic conditions often suffer from related chronic pain. When first-line traditional medications such as acetaminophen and anti-inflammatory medications do not suffice, then other options are needed. The traditional medications may ultimately not provide sufficient pain relief, or alternatively, they can pose as a contraindication due to underlying hypertension, renal, and/or hepatic disease. Therefore, narcotics are an alluring alternative, which if used in a multidisciplinary and systematic approach to the patient, can prove to be quite beneficial in the lives of these patients.
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Affiliation(s)
- Mahsa Tehrani
- Department of Rheumatology, George Washington University, Washington, DC, USA
| | - Mathia Aguiar
- Department of Immunology and Rheumatology, Hospital General de Occidente and University of Guadalajara, Guadalajara, Mexico
| | - James D Katz
- Department of Rheumatology, George Washington University, Washington, DC, USA
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Zabala ME, Favre J, Scanlan SF, Donahue J, Andriacchi TP. Three-dimensional knee moments of ACL reconstructed and control subjects during gait, stair ascent, and stair descent. J Biomech 2012; 46:515-20. [PMID: 23141637 DOI: 10.1016/j.jbiomech.2012.10.010] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Revised: 10/08/2012] [Accepted: 10/10/2012] [Indexed: 12/01/2022]
Abstract
Changes in knee mechanics following anterior cruciate ligament reconstruction (ACLR) have been implicated as a contributor to the development of premature osteoarthritis (OA). However, changes in ambulatory loading in this population have not been well documented. While the magnitude of the external knee moment vector is a major factor in loading at the knee, there is not a comprehensive understanding of the changes in the individual components of the vector following ACL reconstruction. The purpose of this study was to test for differences in the three components of the external knee moment during walking and stair locomotion between ACLR, contralateral and healthy control knees. Forty-five ACLR and 45 healthy control subjects were tested during walking, stair ascent and descent. ACLR knees had a lower first peak adduction moment than contralateral knees during all three activities. Similarly, additional cases of significant differences between ACLR and contralateral knees consisted of lower peak moments for the ACLR than the contralateral knees. These differences were due to both ACLR and contralateral knees as the ACLR knees indicated lower and the contralateral knees greater peak moments compared to healthy control knees. The results suggest a compensatory change involving greater loading in the contralateral knee, perhaps due to lower loading of the ACLR knee. Further, lower knee moments of the ACLR knee suggest that increased joint loading may not be the initiating factor in the development of OA following ACL reconstruction; but rather previous described kinematic or biological changes might initiate the pathway to knee OA.
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Affiliation(s)
- Michael E Zabala
- Department of Mechanical Engineering, Stanford University, Stanford, CA, USA.
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