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Purpose: With the aim of investigating the spatiotemporal features of early gait pattern and knee kinematics after total knee arthroplasty and analyzing the association between outcomes of gait analyses and knee kinematic parameters, the relationship between walking and dynamic knee deformity at the early period after total knee arthroplasty was assessed in this study.
Methods: Eighteen patients including 14 women and 4 men who underwent total knee arthroplasty were analyzed using three-dimensional gait analysis system to observe gait parameters and values of maximum knee flexion angle (MKFA) during swing phase and knee flexion angle (KFA) and knee valgus angle (KVA) at midstance phase.
Results: 3D gait analysis showed that operated side exhibited significantly less total support time and single support time as well as significantly longer swing phase compared with the other side. During walking, the operated side had significantly smaller MKFA and greater KFA and KVA than the nonoperated side. There was moderate to significant correlation between gait pattern and the dynamic knee kinematics.
Conclusion: The gait abnormality of patients after TKA was associated with inadequate flexion of knees at swing phase and insufficient extension at stance phase as well as increased range of valgus.
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http://dx.doi.org/10.1155/2017/7056469 | DOI Listing |
J Dance Med Sci
September 2025
Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
The aim of this study was to propose reference values for the Dynamic Evaluation Method of Lower Limb Joint Alignment (MADAAMI II). During the 2023 Joinville Dance Festival, 346 dancers (315 females and 31 males), aged between 15 and 58 years, with a minimum of 5 years of ballet experience, were randomly evaluated. The dancers were filmed performing the three-step sequence (demi plié, grand plié, and fondu) of the MADAAMI II, in the first foot position, with self-selected turnout and at 120 degrees.
View Article and Find Full Text PDFKnee Surg Relat Res
September 2025
Florida Orthopaedic Institute, Gainesville, FL, 32607, USA.
Background: A clear understanding of minimal clinically important difference (MCID) and substantial clinical benefit (SCB) is essential for effectively implementing patient-reported outcome measurements (PROMs) as a performance measure for total knee arthroplasty (TKA). Since not achieving MCID and SCB may reflect suboptimal surgical benefit, the primary aim of this study was to use machine learning to predict patients who may not achieve the threshold-based outcomes (i.e.
View Article and Find Full Text PDFJ Orthop Res
September 2025
Interdisciplinary Orthopedics, Department of Orthopedics Surgery, Aalborg University Hospital, Aalborg, Denmark.
Functional recovery after total knee arthroplasty (TKA) varies widely among individuals, and traditional assessments often fail to detect subtle changes in real-world walking ability. Wearable sensors offer continuous and objective tracking of gait outside of clinical settings. In this prospective, longitudinal study, thirty-one patients undergoing unilateral TKA wore thigh-mounted accelerometers continuously from 2 weeks before surgery through 90 days postoperatively.
View Article and Find Full Text PDFBMJ Open
September 2025
Department of Rehabilitation, Shengjing Hospital of China Medical University, Shenyang, Liaoning, Chinax
Objectives: This study evaluated the effects of proximal core training on biomechanical risk factors and strength parameters in individuals at high risk of anterior cruciate ligament (ACL) injury (specifically: those exhibiting pathological movement patterns, neuromuscular deficits or biomechanical risk factors) and compared direct versus indirect interventions. We hypothesised that targeted training enhances dynamic knee stabilisation and hip control during high-risk manoeuvres, with direct approaches providing superior biomechanical benefits through neuromuscular control optimisation.
Design: Systematic review and meta-analysis using the Grading of Recommendation, Assessment, Development and Evaluation (GRADE) approach.
J Arthroplasty
September 2025
Dept of Quantitative Health Sciences, Mayo Clinic 200 First Street SW, Rochester, MN 55905; Dept of Orthopedic Surgery, Mayo Clinic 200 First Street SW, Rochester, MN 55905. Electronic address:
Background: Individuals who have had total joint arthroplasty (TJA) are subject to lifelong exposure to metal-based implants. The relationship between chronic exposure to metal-based implants and systemic effects on the brain remains unclear. We aimed to determine the association between TJA and the subsequent long-term risk of dementia.
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