ArticleFrontiers in bioengineering and biotechnology2026
Subject-specific kinematic analysis of a total ankle arthroplasty implant.
Article in Frontiers in bioengineering and biotechnology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Total Ankle Arthroplasty (TAA) is a well-established surgical treatment for end-stage ankle arthritis, yet functional outcomes often remain inferior to those of the native joint. This may be because restoring the full physiological range of motion would likely require a custom-made surgery, in which both the prosthetic design and component positioning are defined on the basis of a patient-specific kinematic analysis. The aim of this study is to propose a subject-specific kinematic analysis of an ankle joint implanted with the FAR prosthesis and to investigate the compatibility between prosthesis-induced motion and the physiological motion of the healthy joint. A CT-based 3D model and a 4-bar linkage model were used to estimate the physiological path of the instantaneous centre of rotation during passive plantar-dorsiflexion, while the kinematic constraints of the FAR prosthesis were simultaneously analysed. A novel methodology was proposed, based on an analogy between the FAR implant design and a planetary gear mechanism, to reproduce the physiological kinematics of the natural joint with high fidelity. The results, in terms of overall plantar-dorsiflexion range of motion and ligament behaviour, suggested that the analysed TAA design was unable to fully reproduce the physiological kinematics of the healthy joint model for the subject and virtual surgery considered. Comparison with clinical data demonstrated general agreement in terms of range of motion and meniscal bearing displacement. Overall, the proposed methodology provides a framework for systematically analysing subject-specific ankle joint kinematics after implantation and suggests promising directions for future research.
Indexed as
Identifiers
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.