Evidence map›Paper›PMID 32883334›Full record

ArticleJournal of orthopaedic surgery and research2020

Proximal tibial morphology and risk of posterior tibial cortex impingement in patients with AA-sized Oxford unicompartmental knee arthroplasty tibial implants.

Jiun-Ran Charng, Alvin Chao-Yu Chen, Yi-Shen Chan, Kuo Yao Hsu, Chen-Te Wu

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of orthopaedic surgery and research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.4field-weighted citation impact, top 36% of its field
1 · What the graph read from it

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.

2 · The registry

The trial behind it

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3 · Its place in the literature

Who cites it

2 citing papers in PubMed, 4 citations in OpenAlex.

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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Jiun-Ran CharngDepartment of Orthopedic Surgery, Chang Gung Memorial Hospital, No. 5, Fu-Hsin Street, Kweishan, Taoyuan, Taiwan.ORCID http://orcid.org/0000-0002-8557-7137
Alvin Chao-Yu ChenDepartment of Orthopedic Surgery, Chang Gung Memorial Hospital, No. 5, Fu-Hsin Street, Kweishan, Taoyuan, Taiwan.
Yi-Shen ChanDepartment of Orthopedic Surgery, Chang Gung Memorial Hospital, No. 5, Fu-Hsin Street, Kweishan, Taoyuan, Taiwan.
Kuo Yao HsuDepartment of Orthopedic Surgery, Chang Gung Memorial Hospital, No. 5, Fu-Hsin Street, Kweishan, Taoyuan, Taiwan.
Chen-Te WuDepartment of Medical Imaging and Intervention, Chang Gung Memorial Hospital, No. 5, Fu-Hsin Street, Kweishan, Taoyuan, Taiwan. melik@cgmh.org.tw.
Chang Gung University · TWChang Gung Memorial Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn cases of Oxford unicompartmental knee arthroplasty (UKA), an increase in anteroposterior and medial-lateral length is usually disproportional when comparing AA and A-sized tibial components. Asynchronous increments may cause tibial keel impingement leading to complications.

methodsRadiographic measurements were performed in five patients with AA-sized tibial implants. The posterior cortex of proximal tibia had two angles recorded as ∠ M1 and ∠ M2. The minimum distance between the tibial component keel and outer margin of the posterior tibial cortex (mDKC) was measured, and the correlation between the preoperative posterior slope angle (PSA), ∠ M1, and mDKC was analyzed.

resultsAll patients showed an acceptable component positioning. Only one patient had an mDKC of < 4 mm that fulfilled the criteria for the posterior tibial cortex at risk. The patient had an increased PSA and ∠ M1 compared to other patients. A negative correlation was found between preoperative PSA and mDKC (r = - 0.935, p = 0.0193); and ∠ M1 and mDKC (r = - 0.969, p = 0.0032). However, no stem tip pain, periprosthetic fracture, or component loosening were observed.

conclusionsThe distance between the tibial keel and posterior tibial cortex was reduced in AA-sized patients with a large PSA and ∠M1; therefore, the risk of the tibial cortex injury should be considered.

Indexed as

Knee ProsthesisAgedArthroplasty, Replacement, KneeFemaleHumansKneeMaleMiddle AgedOsteoarthritis, KneePostoperative ComplicationsTibiaAsian populationKeel impingementMorphologyOxfordProximal tibialUnicompartmental knee

Identifiers

PMID32883334
PMCPMC7470608
OpenAlexW3082694287

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LicenceCC BY
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Registered trials

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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.