Evidence map›Paper›PMID 32617748›Full record

ArticleMusculoskeletal surgery2022

A new and improved acetabular cup digital templating method and its clinical application.

H-L Zhang, L Zheng, W-C Wang, Y-H Luo, L Wang, X-Z Mao

Abstract read
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In one paragraph

Article in Musculoskeletal surgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from 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.

2 · The registry

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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

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1 citing paper in PubMed.

  1. Observational
4 · The record

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5 · Who and what money

Authors and funding

6 authors.

H-L ZhangOperating Room, The Second Xiangya Hospital, Central South University, No. 139, Middle Renmin Road, Changsha, 410011, Hunan, China.
L ZhengDepartment of Orthopedics, The Second Xiangya Hospital, Central South University, No. 139, Middle Renmin Road, Changsha, 410011, Hunan, China. zhengliwen@csu.edu.cn.ORCID http://orcid.org/0000-0002-4332-019X
W-C WangDepartment of Orthopedics, The Second Xiangya Hospital, Central South University, No. 139, Middle Renmin Road, Changsha, 410011, Hunan, China.
Y-H LuoDepartment of Radiology, The Second Xiangya Hospital, Central South University, No. 139, Middle Renmin Road, Changsha, Hunan, China.
L WangSchool of Information Science and Engineering, Central South University, No. 932, South Lushan Road, Changsha, Hunan, China.
X-Z MaoDepartment of Orthopedics, The Second Xiangya Hospital, Central South University, No. 139, Middle Renmin Road, Changsha, 410011, Hunan, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivePreoperative acetabular cup templating has an important auxiliary effect on hip surgery. The traditional acetabular cup templating method requires the measuring person to have some experience in total hip replacement (THA) surgery since the measurement results vary from person to person with differences between different measuring persons. To obtain stable templating results, we designed a new acetabular cup templating method and tested the inter-person measuring differences and measurement accuracy of this method. Meanwhile, the clinical application of this method was preliminarily explored. MATERIALS AND

methodsThe pattern of this new method was manual labeling of imaging characteristic points and then programmed automatic measurements. The measurement process was performed entirely by orthopedic graduate students without any experience in hip replacement surgery. The inter-person measuring difference was evaluated by comparing the templating results of three measuring persons. The accuracy of the templating was evaluated by comparing the templating results with the actual size of the prosthesis in the surgery. The correlation between the position of the acetabular cup and the templating error was analyzed to explore the clinical significance of the templating results. This study was a retrospective study which included templating in a total of 406 cases for total hip replacement with cementless cup prosthesis. Digital measurements were performed using the Matlab software from MathWorks. The statistical comparison was performed using Kendall's W test.

resultsThe results of the three measuring persons were completely identical in 61.8% (251/406) of cases, and the variation in 38.2% (155/406) of cases did not exceed one size of the acetabular cup. The Kendall's W coefficient was 0.977, and p < 0.01. The measurement accuracy is not as good as the traditional method in exactly accurate measurement and ±1 cup size, but it is similar to the traditional method in the ±2 cup sizes. The correlation between the templating error and the position evaluation of the implanted acetabular cups reveals: (1) larger the templating error, larger the proportion of the acetabular cups with poor position; (2) the proportion of acetabular cup with poor position slowly increased when the templating error was from 0 to 1 size, and the proportion rapidly increased when the templating error was from 1 to 2 size.

conclusionAll the patients with clear teardrop bottom and lateral superior edge of acetabulum were able to use our method to predict the size of the acetabular cup. The method has the following advantages: (1) it does not require the measuring person to have any previous experience of the THA surgery, which reduces the labor cost of the templating; (2) the differences between the measuring persons is small, the measurement result can be repeated; (3) it can predict the probability of acetabular cup with poor positioning according to the templating error, and thereby reminding the surgeon to recheck and correct the position of the acetabular cup in time during the surgery.

Indexed as

Arthroplasty, Replacement, HipHip ProsthesisAcetabulumHumansRetrospective StudiesSoftwareClinical studyDigital templatingRetrospective studyTotal hip arthroplasty

Identifiers

PMID32617748

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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.