ArticleScience robotics2022
A lightweight robotic leg prosthesis replicating the biomechanics of the knee, ankle, and toe joint.
Article in Science robotics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 49 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
49 citing papers in PubMed, 137 citations in OpenAlex.
- Beyond microprocessor knees: exploring the potential of fully powered prosthetic legs.Journal of neuroengineering and rehabilitation · 2026Trial
- Toward personalizing prosthesis prescription: A take-home study of three microprocessor-controlled prosthetic knees: A randomized crossover study.PM & R : the journal of injury, function, and rehabilitation · 2026Trial
- The clinical effects of the Össur Power Knee with phase-based and default control during sitting, standing, and walking.Journal of neuroengineering and rehabilitation · 2025Trial
- Power-free knee rehabilitation robot for home-based isokinetic training.Nature communications · 2025Trial
- Lower-limb prosthetic mechanisms: recent progress, control innovations and barriers to real-world adoption.Biomedical engineering online · 2026Review
- A Personalized Gait Parameter Prediction-Based Speed-Adaptive Control Method for Hybrid Active-Passive Intelligent Prosthetic Knee.Biomimetics (Basel, Switzerland) · 2026Article
- The SoftFoot Pro: an anthropomorphic and adaptive soft articulated prosthetic foot.Nature communications · 2026Article
- Controlling Powered Prosthesis Joint Impedance Over Continuous Stance Transitions Between Walking and Stair Ascent/Descent.IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society · 2026Article
- Fast walking with swing extension assistance in a nominally passive semi-powered prosthetic knee.Frontiers in robotics and AI · 2026Article
- Locomotion Decoding (Applied bionics and biomechanics · 2026Article
- Effects of a Powered Knee-Ankle Prosthesis on Intact Joint Biomechanics Across Sustained Activities of Daily Life: A Case Series.IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society · 2026Article
- Monolithic scalable compliant mechanisms.PloS one · 2026Article
- Design and Testing of an Emg-Controlled Semi-Active Knee Prosthesis.Sensors (Basel, Switzerland) · 2025Article
- Wearable technologies for assisted mobility in the real world.Nature communications · 2025Review
- A low-noise low-impedance powered knee prosthesis with direct ball screw drive and torque-sensitive actuation.The International journal of robotics research · 2025Article
- Orthopedic robotic surgery: multiple analytical approaches and a bibliometric study of the top 100 most cited papers.Journal of robotic surgery · 2025Article
- Enhanced gastrocnemius-mimicking lower limb powered exoskeleton robot.Journal of neuroengineering and rehabilitation · 2025Article
- Vibrotactile Haptic and Gesture Feedback in a Smartwatch for Controlling a Multi-Activity Powered Knee-Ankle Prosthesis.Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · 2025Article
- A Task-Agnostic Approach to Unified Multi-Activity Gait Phase Estimation via Bilateral Sensing.IEEE ... International Conference on Rehabilitation Robotics : [proceedings] · 2025Article
- The Only Way Is Up: Active Knee Exoskeleton Reduces Muscular Effort in Quadriceps During Weighted Stair Ascent.IEEE robotics and automation letters · 2025Article
Corrections and comments
- Erratum issued
Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
Robotic leg prostheses promise to improve the mobility and quality of life of millions of individuals with lower-limb amputations by imitating the biomechanics of the missing biological leg. Unfortunately, existing powered prostheses are much heavier and bigger and have shorter battery life than conventional passive prostheses, severely limiting their clinical viability and utility in the daily life of amputees. Here, we present a robotic leg prosthesis that replicates the key biomechanical functions of the biological knee, ankle, and toe in the sagittal plane while matching the weight, size, and battery life of conventional microprocessor-controlled prostheses. The powered knee joint uses a unique torque-sensitive mechanism combining the benefits of elastic actuators with that of variable transmissions. A single actuator powers the ankle and toe joints through a compliant, underactuated mechanism. Because the biological toe dissipates energy while the biological ankle injects energy into the gait cycle, this underactuated system regenerates substantial mechanical energy and replicates the key biomechanical functions of the ankle/foot complex during walking. A compact prosthesis frame encloses all mechanical and electrical components for increased robustness and efficiency. Preclinical tests with three individuals with above-knee amputation show that the proposed robotic leg prosthesis allows for common ambulation activities with close to normative kinematics and kinetics. Using an optional passive mode, users can walk on level ground indefinitely without charging the battery, which has not been shown with any other powered or microprocessor-controlled prostheses. A prosthesis with these characteristics has the potential to improve real-world mobility in individuals with above-knee amputation.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.