Trial reportKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2011
Sagittal plane kinematics of fixed- and mobile-bearing total knee replacements.
Trial report in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.
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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
13 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.
- Mobile bearing vs fixed bearing prostheses for posterior cruciate retaining total knee arthroplasty for postoperative functional status in patients with osteoarthritis and rheumatoid arthritis.The Cochrane database of systematic reviews · 2015Pooled it
- Mobile-bearing prosthesis and intraoperative gap balancing are not predictors of superior knee flexion: a prospective randomized study.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2015Trial
- No clinical difference between fixed- and mobile-bearing cruciate-retaining total knee arthroplasty: a prospective randomized study.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2015Trial
- Effect of surgical closing in total knee arthroplasty at flexion or extension: a prospective, randomized study.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2014Trial
- Functional performance of mobile versus fixed bearing total knee prostheses: a randomised controlled trial.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2012Trial
- In vivo sagittal plane kinematics of the FPV patellofemoral replacement.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2012Trial
- Effects of exercise therapy on joint instability in patients with osteoarthritis of the knee: A systematic review.Osteoarthritis and cartilage open · 2020Review
- No differences between fixed- and mobile-bearing total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2017Review
- Deep-dished highly congruent tibial insert in CR-TKA does not prevent patellar tendon angle increase and patellar anterior translation.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2015Article
- Tibial internal rotation is affected by lateral laxity in cruciate-retaining total knee arthroplasty: an intraoperative kinematic study using a navigation system and offset-type tensor.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2014Article
- Constraints in posterior-stabilised TKA kinematics: a comparison of two generations of an implant.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2013Article
- Femoro-tibial kinematics after TKA in fixed- and mobile-bearing knees in the sagittal plane.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2013Article
- Rehabilitation after ACL injury: a fluoroscopic study on the effects of type of exercise on the knee sagittal plane arthrokinematics.BioMed research international · 2013Article
Corrections and comments
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Authors and funding
6 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe objective of this prospective, randomized, patient- and observer-blinded study was to analyze, in vivo, the knee joint kinematics in the sagittal plane in a patient population that had received either a fixed or a mobile TKA.
methodsThirty-one patients (57 knees) were evaluated by means of fluoroscopy during unloaded flexion and extension against gravity as well as during step up and step down with full weight bearing. In these 31 patients, 22 fixed-bearing TKAs, 16 mobile-bearing TKAs, and 19 natural knee joints were included. Fluoroscopic radiographs were evaluated by measuring the "patella tendon angle" in relation to the knee flexion angle, as a measure of anteroposterior translation, as well as the "kinematic index," as a measure of reproducibility.
resultsDuring unloaded movement, fluoroscopic analysis did not show a significant difference between both types of prosthesis design and the natural knee. In the weight-bearing movement, both types of TKA designs revealed a more linear patellar tendon angle curve, with a greater angle in extension and in flexion than in the natural knees. In the mobile-bearing group, interindividual deviations from the mean during weight-bearing movements were significantly less than in the fixed-bearing group.
conclusionsNo functional advantage of mobile-bearing TKA over fixed-bearing devices could be found. Both TKA designs showed the typical kinematics of an anterior instability. These results only apply to cruciate retaining mobile-bearing TKA with a bearing that allows both rotation and anteroposterior translation, using a sagittal plane kinematics analysis evaluated by such methodology. A possible influence of less variability of the kinematic pattern on clinical results still needs to be confirmed.
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