Evidence map›Paper›PMID 28711951›Full record

ArticleInternational orthopaedics2017

Optimizing patellar positioning during total knee arthroplasty: an anatomical and clinical study.

Chahine Assi, Nadim Kheir, Camille Samaha, Mary Deeb, Kaissar Yammine

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Article in International orthopaedics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.2field-weighted citation impact, top 20% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 13 citations in OpenAlex.

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  5. [Digital study on the relationship between position of patellar high point and shape of osteotomy surface in Chinese].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2022
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 2 countries.

Chahine AssiDepartment of Orthopaedic Surgery, Lebanese American University-Rizk Hospital, Beirut, Lebanon.
Nadim KheirDepartment of Orthopaedic Surgery, Lebanese American University-Rizk Hospital, Beirut, Lebanon.
Camille SamahaDepartment of Orthopaedic Surgery, Lebanese American University-Rizk Hospital, Beirut, Lebanon.
Mary DeebDepartement of Biostatistics, Lebanese American University, Beirut, Lebanon.
Kaissar YammineDepartment of Orthopaedic Surgery, Lebanese American University-Rizk Hospital, Beirut, Lebanon. cesaryam@gmail.com.ORCID 0000-0003-0094-9892
University Medical Center Rizk Hospital · LBLebanese American University · LB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionOptimal positioning of the patellar component is crucial for the success of a total knee arthroplasty (TKA). Usually, the patellar component is placed empirically over the presumed centre of the patellar cut. Medialization of the prosthetic patella has been recommended; however, no evidence-based guidelines have been reported. MATERIAL AND

methodThis anatomical study aims to quantify a pre-defined optimal location for positioning of the patellar component with regard to the centre of the patellar cut. Intra-operative measurements of the patellar cut of a series of 129 TKA were conducted in order to measure the distance between the optimal centre of prosthetic patella (OCPP) and the centre of the patellar cut, and that over the vertical (proximal-distal) axis and the horizontal axis (medial-lateral).

resultsOur results demonstrated that, (a) a significant morphological difference of the patellar cut exists between men and women (P < 0.0001), and (b) with reference to centre of the patellar cut, the OCPP lies superiorly and medially in 89%, inferiorly and medially in 9.4%, laterally and superiorly in 1.6%, and in no case laterally and inferiorly. No anterior pain, dislocation episode or patellar revision has been encountered during a follow-up of 4.5 years.

conclusionsThe placement of the patellar component during TKA differs from one patella to another. Thus, by defining the OCPP on a patient-by-patient basis, the surgeon should be able to reproduce the functional anatomy of the native patella.

Indexed as

AgedArthroplasty, Replacement, KneeCohort StudiesFemaleHumansKnee JointKnee ProsthesisMaleMiddle AgedPatellaAnatomyPatellaTotal knee arthroplasty

Identifiers

PMID28711951
OpenAlexW2735290946

What OpenQuestion holds

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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.