Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Background: Since the COVID-19 pandemic of 2020, there has been a marked rise in the use of telemedicine to evaluate patients after total knee arthroplasty (TKA). The purpose of our study was to assess a novel stem with an embedded sensor that can remotely and objectively monitor a patient's mobility after TKA.
Methods: A single anatomically designed knee system was implanted in concert with an interconnected tibial stem extension containing 3D accelerometers, 3D gyroscopes, a power source, and a telemetry transmission capability in 3 cadaveric pelvis to toe specimens. The legs were moved by hand to preset tibial positions at full knee extension, midflexion, flexion, and back to midflexion and extension for a total of 16 trials across 6 knees.
Results: Sensor data were successfully transmitted with good quality of signal to an external base station. Good correlation to the range of motion of the tibia was found (mean error 0.1 degrees; root mean square error 3.8 degrees). The signal from the heel drop tests suggests the sensor could detect heel strike during activities of daily living in vivo and the potential for additional signal processing to analyze vibratory and motion patterns detected by the sensors. A frequency domain analysis of a properly cemented and poorly cemented implant during the heel drop test suggests a difference in accelerometer signal in these implant states.
Conclusion: The results confirm signals generated from an embedded TKA sensor can transmit through bone and cement, providing accurate range of motion data and may be capable of detecting changes in prosthesis fixation remotely.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.arth.2021.10.025 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Reference Values for the Dynamic Evaluation Method of Lower Limb Joint Alignment (MADAAMI II) for Dancers.
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 PDFPreoperatively predicting failure to achieve the minimum clinically important difference and substantial clinical benefit for total knee arthroplasty patients using machine learning.
Knee 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 PDFMonitoring Gait Recovery After Total Knee Arthroplasty Using Wearable Sensors: Responsiveness of Gait Accelerations.
J 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 PDFProximal core strengthening training for anterior cruciate ligament injury prevention with biomechanical improvements in knee/hip kinematics and strength gains: a systematic review and meta-analysis of low-certainty evidence.
BMJ 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.
Long-Term Risk of Dementia Up to Three Decades After Total Joint Arthroplasty: A Population-Based Cohort Study.
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.
View Article and Find Full Text PDF