ArticleCase reports in orthopedics2015
Meniscal Bearing Dislocation of Unicompartmental Knee Arthroplasty with Faint Symptom.
Article in Case reports in orthopedics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.
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Who cites it
8 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Anterior cruciate ligament deficiency versus intactness for outcomes in patients after unicompartmental knee arthroplasty: a systematic review and meta-analysis.Frontiers in bioengineering and biotechnology · 2022Pooled it
- Unicompartimental knee arthroplasty metallosis treated with uni-on-uni revision: A case report.World journal of orthopedics · 2023Article
- A structured evaluation of the symptomatic medial Oxford unicompartmental knee arthroplasty (UKA).EFORT open reviews · 2021Review
- Bearing failure in a mobile bearing unicompartmental knee arthroplasty: an uncommon presentation of an implant-specific complication.Arthroplasty (London, England) · 2021Article
- Rare Asymptomatic Posterior Dislocation of Mobile Bearing Insert in Unicondylar Knee Arthroplasty: A Case Report.Indian journal of orthopaedics · 2020Article
- Superior bearing dislocation in a unicompartmental total knee prosthesis.Radiology case reports · 2019Article
- Redislocation after Bearing Exchange for the Treatment of Mobile Bearing Dislocation in Medial Unicompartmental Knee Arthroplasty.Knee surgery & related research · 2018Article
- A novel radiographic technique to assess 180° rotational spin of the Oxford unicompartmental knee mobile bearing.Journal of orthopaedicsArticle
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We experienced two cases of atypical lateral dislocations of meniscal bearing in UKA (unicompartmental knee arthroplasty) without manifest symptoms. The dislocated bearing, which jumped onto the wall of tibial components, was found on radiographs in periodic medical examination although they could walk. Two thicker size bearing exchanges were promptly performed before metallosis and loosening of components. Continual examination is important to mobile bearing type of UKA because slight or less symptoms may disclose such unique dislocation. One case showed malrotation of the femoral component on 3D image. Anteroposterior view hardly disclosed the malrotation of the femoral component. Epicondylar view is an indispensable view of importance, and it can demonstrate the rotation of the femoral component. The the femoral distal end is wedge shaped and is wider posteriorly. If the femoral component is set according to the shape of medial condyle, the femoral component shifts to medial site compared with tibial component in flexion. It can account for such rare dislocation as follows. If excessive force applies on most medial side of the bearing during flexion, the lateral part of the bearing pops and the force squeezes it laterally simultaneously. Finally, the bearing jumps onto the lateral wall of the tibial component.
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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.