Is it Important to Know Where to Place the Spherical Marker for Hip Replacement Digital Planning?
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Ortopedia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162020000300353 |
Resumo: | Abstract Objective The present paper aims to evaluate the influences of individual characteristics in radiographic magnification and to identify the most accurate method for radiographic calibration. Methods During radiographical exam of 50 patients with hip prosthesis, anthropometric data was collected and 4 spherical metal markers with 25 mm diameters were positioned: at the greater trochanter level and lateral to it, over the pubic symphysis, between the thighs at the greater trochanter level, and over the exam table. Since the prosthesis head is the best internal radiographic marker for hip arthroplasty, it was our calibration parameter. Two examiners measured the markers' image for further analysis. Results The sample consisted of 50 participants, 19 of whom were male. A difference in pubic symphysis magnification was found. Other individual characteristics (weight, height and body mass index) had weak correlation. The higher accuracy of the markers was at the greater trochanter, between 68.4 and 78.9%, visualized in only19 radiographs. The marker positioned between the thighs was visualized in all radiographs, with an accuracy ranging from 30 to 46%. Conclusions Of all individual characteristics, only gender influences magnification at the pubic symphysis. We suggest the use of two spherical markers: at the greater trochanter, due the best accuracy, and between the thighs, considered the best positioning for better visibility. |
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Is it Important to Know Where to Place the Spherical Marker for Hip Replacement Digital Planning?arthroplasty, replacement, hiphip prosthesisradiographypelvisradiographic magnificationAbstract Objective The present paper aims to evaluate the influences of individual characteristics in radiographic magnification and to identify the most accurate method for radiographic calibration. Methods During radiographical exam of 50 patients with hip prosthesis, anthropometric data was collected and 4 spherical metal markers with 25 mm diameters were positioned: at the greater trochanter level and lateral to it, over the pubic symphysis, between the thighs at the greater trochanter level, and over the exam table. Since the prosthesis head is the best internal radiographic marker for hip arthroplasty, it was our calibration parameter. Two examiners measured the markers' image for further analysis. Results The sample consisted of 50 participants, 19 of whom were male. A difference in pubic symphysis magnification was found. Other individual characteristics (weight, height and body mass index) had weak correlation. The higher accuracy of the markers was at the greater trochanter, between 68.4 and 78.9%, visualized in only19 radiographs. The marker positioned between the thighs was visualized in all radiographs, with an accuracy ranging from 30 to 46%. Conclusions Of all individual characteristics, only gender influences magnification at the pubic symphysis. We suggest the use of two spherical markers: at the greater trochanter, due the best accuracy, and between the thighs, considered the best positioning for better visibility.Sociedade Brasileira de Ortopedia e Traumatologia2020-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162020000300353Revista Brasileira de Ortopedia v.55 n.3 2020reponame:Revista Brasileira de Ortopedia (Online)instname:Sociedade Brasileira de Ortopedia e Traumatologia (SBOT)instacron:SBOT10.1055/s-0039-1693052info:eu-repo/semantics/openAccessPolesello,Giancarlo CavalliSalerno,Thiago TroncoRezende,João Hélio ZucarelliRicioli Junior,WalterRabelo,Nayra DeiseQueiroz,Marcelo Cavalheiro deeng2020-09-28T00:00:00Zoai:scielo:S0102-36162020000300353Revistahttp://www.rbo.org.br/https://old.scielo.br/oai/scielo-oai.php||rbo@sbot.org.br1982-43780102-3616opendoar:2020-09-28T00:00Revista Brasileira de Ortopedia (Online) - Sociedade Brasileira de Ortopedia e Traumatologia (SBOT)false |
dc.title.none.fl_str_mv |
Is it Important to Know Where to Place the Spherical Marker for Hip Replacement Digital Planning? |
title |
Is it Important to Know Where to Place the Spherical Marker for Hip Replacement Digital Planning? |
spellingShingle |
Is it Important to Know Where to Place the Spherical Marker for Hip Replacement Digital Planning? Polesello,Giancarlo Cavalli arthroplasty, replacement, hip hip prosthesis radiography pelvis radiographic magnification |
title_short |
Is it Important to Know Where to Place the Spherical Marker for Hip Replacement Digital Planning? |
title_full |
Is it Important to Know Where to Place the Spherical Marker for Hip Replacement Digital Planning? |
title_fullStr |
Is it Important to Know Where to Place the Spherical Marker for Hip Replacement Digital Planning? |
title_full_unstemmed |
Is it Important to Know Where to Place the Spherical Marker for Hip Replacement Digital Planning? |
title_sort |
Is it Important to Know Where to Place the Spherical Marker for Hip Replacement Digital Planning? |
author |
Polesello,Giancarlo Cavalli |
author_facet |
Polesello,Giancarlo Cavalli Salerno,Thiago Tronco Rezende,João Hélio Zucarelli Ricioli Junior,Walter Rabelo,Nayra Deise Queiroz,Marcelo Cavalheiro de |
author_role |
author |
author2 |
Salerno,Thiago Tronco Rezende,João Hélio Zucarelli Ricioli Junior,Walter Rabelo,Nayra Deise Queiroz,Marcelo Cavalheiro de |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Polesello,Giancarlo Cavalli Salerno,Thiago Tronco Rezende,João Hélio Zucarelli Ricioli Junior,Walter Rabelo,Nayra Deise Queiroz,Marcelo Cavalheiro de |
dc.subject.por.fl_str_mv |
arthroplasty, replacement, hip hip prosthesis radiography pelvis radiographic magnification |
topic |
arthroplasty, replacement, hip hip prosthesis radiography pelvis radiographic magnification |
description |
Abstract Objective The present paper aims to evaluate the influences of individual characteristics in radiographic magnification and to identify the most accurate method for radiographic calibration. Methods During radiographical exam of 50 patients with hip prosthesis, anthropometric data was collected and 4 spherical metal markers with 25 mm diameters were positioned: at the greater trochanter level and lateral to it, over the pubic symphysis, between the thighs at the greater trochanter level, and over the exam table. Since the prosthesis head is the best internal radiographic marker for hip arthroplasty, it was our calibration parameter. Two examiners measured the markers' image for further analysis. Results The sample consisted of 50 participants, 19 of whom were male. A difference in pubic symphysis magnification was found. Other individual characteristics (weight, height and body mass index) had weak correlation. The higher accuracy of the markers was at the greater trochanter, between 68.4 and 78.9%, visualized in only19 radiographs. The marker positioned between the thighs was visualized in all radiographs, with an accuracy ranging from 30 to 46%. Conclusions Of all individual characteristics, only gender influences magnification at the pubic symphysis. We suggest the use of two spherical markers: at the greater trochanter, due the best accuracy, and between the thighs, considered the best positioning for better visibility. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-06-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162020000300353 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162020000300353 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1055/s-0039-1693052 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Ortopedia e Traumatologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Ortopedia e Traumatologia |
dc.source.none.fl_str_mv |
Revista Brasileira de Ortopedia v.55 n.3 2020 reponame:Revista Brasileira de Ortopedia (Online) instname:Sociedade Brasileira de Ortopedia e Traumatologia (SBOT) instacron:SBOT |
instname_str |
Sociedade Brasileira de Ortopedia e Traumatologia (SBOT) |
instacron_str |
SBOT |
institution |
SBOT |
reponame_str |
Revista Brasileira de Ortopedia (Online) |
collection |
Revista Brasileira de Ortopedia (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Ortopedia (Online) - Sociedade Brasileira de Ortopedia e Traumatologia (SBOT) |
repository.mail.fl_str_mv |
||rbo@sbot.org.br |
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1752122362437828608 |