Results 141 to 150 of about 547,594 (398)

Image‐based robotic total knee arthroplasty preserves the knee joint line level even in advanced fixed flexion deformities when combined with functional alignment principles: A retrospective comparative cohort study

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose Fixed flexion deformity (FFD) is traditionally addressed in total knee arthroplasty (TKA) with extensive soft tissue release and distal femoral recut, which increases bone stock consumption and raises the knee joint line (JL). This study aimed to evaluate differences in the anatomical restoration of the JL and bone stock preservation ...
Giacomo Pacchiarotti   +5 more
wiley   +1 more source

Designing Electronics for an Artificial Leg [PDF]

open access: yes, 2015
A regenerative prosthesis is modeled and simulated. The simulation is optimized with the biogeography-based optimization algorithm to obtain desired knee angle tracking with a reference knee trajectory and to regenerate energy.
Barto, Taylor
core   +2 more sources

Retractable Prosthesis for Transfemoral Amputees Using Series Elastic Actuators and Force Control [PDF]

open access: yesarXiv, 2015
We present a highly functional and cost-effective prosthesis for transfemoral amputees that uses series elastic actuators. These actuators allow for accurate force control, low impedance and large dynamic range. The design involves one active joint at the knee and a passive joint at the ankle.
arxiv  

A new parameter in the era of robotic total knee arthroplasty: Coronal alignment at 90° of flexion impacts clinical outcomes

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose Alignment strategies in total knee arthroplasty (TKA) have predominantly emphasized coronal alignment in extension, with minimal focus on dynamic alignment during flexion. This study aims to identify the predictors of the intraoperative robotic hip–knee–ankle angle at 90° of flexion (rHKA‐90F) and assess its clinical significance in ...
Luca Andriollo   +5 more
wiley   +1 more source

Superior bearing dislocation in a unicompartmental total knee prosthesis

open access: yesRadiology Case Reports, 2019
The mobile bearing Oxford Unicompartmental Knee Prosthesis (OUKP) is the most commonly used treatment of osteoarthritis confined to 1 compartment of the knee.
Thea De Geus, MB, BCh, BAO   +2 more
doaj  

A Review of Prosthetic Interface Stress Investigations [PDF]

open access: yes, 1996
Over the last decade, numerous experimental and numerical analyses have been conducted to investigate the stress distribution between the residual limb and prosthetic socket of persons with lower limb amputation.
Childress, Dudley S.   +2 more
core   +1 more source

A new preclinical sheep model of medial meniscus anterior root repair: Part 1—Quantitative morphology and relationships to adjacent structures

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose To analyse the quantitative morphology of the menisci, their roots and relations with a focus on the medial meniscus anterior root (MAR) as a basis for a preclinical model. Methods Data was obtained from 24 tibial plateaus of skeletally mature, female Merino ewes. The MAR attachment (MARA) was scanned with micro‐computed tomography and
Wei Liu   +5 more
wiley   +1 more source

Popliteus impingement after TKA may occur with well-sized prostheses [PDF]

open access: yes, 2016
To determine the mechanisms and extents of popliteus impingements before and after TKA and to investigate the influence of implant sizing. The hypotheses were that (1) popliteus impingements after TKA may occur at both the tibia and the femur, and (2 ...
Bonnin, Michel   +6 more
core   +1 more source

Lower prosthesis-specific 10-year revision rate with crosslinked than with non-crosslinked polyethylene in primary total knee arthroplasty

open access: yesActa Orthopaedica, 2015
Background and purpose — While highly crosslinked polyethylene has shown reduced in vivo wear and lower rates of revision for total hip arthroplasty, there have been few long-term studies on its use in total knee arthroplasty (TKA).
R. D. de Steiger   +4 more
semanticscholar   +1 more source

Beyond the coronal plane in robotic total knee arthroplasty—Part 1: Variations in tibial slope and distal femoral flexion do not affect outcomes

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose Robotic‐assisted total knee arthroplasty (TKA) and new alignment principles are transforming traditional implant positioning, not only in the coronal plane but also in the sagittal and axial planes. The impact of differences between a patient's native tibial slope (TS) and distal femoral flexion (DFF) compared to the final implant ...
Luca Andriollo   +5 more
wiley   +1 more source

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