Böhler’s Angle-Comparison Between the pre- and Postoperative in Displaced Intra-Articular Calcaneal Fractures

Böhler’s Angle-Comparison Between the pre- and Postoperative in Displaced Intra-Articular Calcaneal Fractures

Abstract Objective To compare pre- and postoperative variation of radiographicmeasurements of the Böhler angle (BA) in fractures with two types of deviations: severe and moderate. Methods Pre- and postoperative BAs in 31 calcaneal fracture radiographs were retrospectively analyzed. A total of 4 patients were female (6.5%) and 26 were male (83.9%), with age ranging from 23 to 72 years old, and a mean age of 44.5 years old. Results The results show that the postoperative BA was significantly larger than the preoperative BA (p = 0.000). At the intraevaluator and overall assessments, the postoperative BA was, on average, 10.6° higher than the preoperative measure. The postoperative angle was, on average, 108% higher than the preoperative angle. In the global assessment, the agreement between evaluatorswas excellent, bothregarding the estimated point value (0.98) and the intraclass correlation (ICC) confidence interval (CI). Conclusion In the global analysis, the postoperative BAs were, on average, significantly higher than the preoperativemeasurements. The farther from the normal range (20° to 40°) the preoperative angle is, the greater the difference after the surgery. When the preoperative angle was normal, the postoperative angle was, on average, 1.28 times the preoperative measurement. If the preoperative BA was abnormal, the postoperative angle was, on average, 17.3 times the preoperativemeasurement. It was demonstrated that more severe fractures present better anatomic results when compared with moderate fractures. The present study also confirms a good interobserver correlation for the BA.

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Main Authors: Labronici,Pedro José, Faria,Guilherme Guerra Pinheiro de, Pedro,Bruno Miranda, Serra,Marcos Donato Franco de Araújo, Pires,Robinson Esteves Santos, Tamontini,Jorge Luiz
Format: Digital revista
Language:English
Published: Sociedade Brasileira de Ortopedia e Traumatologia 2019
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162019000200156
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spelling oai:scielo:S0102-361620190002001562019-05-29Böhler’s Angle-Comparison Between the pre- and Postoperative in Displaced Intra-Articular Calcaneal FracturesLabronici,Pedro JoséFaria,Guilherme Guerra Pinheiro dePedro,Bruno MirandaSerra,Marcos Donato Franco de AraújoPires,Robinson Esteves SantosTamontini,Jorge Luiz calcaneus bone fractures intra-articular fractures radiography Abstract Objective To compare pre- and postoperative variation of radiographicmeasurements of the Böhler angle (BA) in fractures with two types of deviations: severe and moderate. Methods Pre- and postoperative BAs in 31 calcaneal fracture radiographs were retrospectively analyzed. A total of 4 patients were female (6.5%) and 26 were male (83.9%), with age ranging from 23 to 72 years old, and a mean age of 44.5 years old. Results The results show that the postoperative BA was significantly larger than the preoperative BA (p = 0.000). At the intraevaluator and overall assessments, the postoperative BA was, on average, 10.6° higher than the preoperative measure. The postoperative angle was, on average, 108% higher than the preoperative angle. In the global assessment, the agreement between evaluatorswas excellent, bothregarding the estimated point value (0.98) and the intraclass correlation (ICC) confidence interval (CI). Conclusion In the global analysis, the postoperative BAs were, on average, significantly higher than the preoperativemeasurements. The farther from the normal range (20° to 40°) the preoperative angle is, the greater the difference after the surgery. When the preoperative angle was normal, the postoperative angle was, on average, 1.28 times the preoperative measurement. If the preoperative BA was abnormal, the postoperative angle was, on average, 17.3 times the preoperativemeasurement. It was demonstrated that more severe fractures present better anatomic results when compared with moderate fractures. The present study also confirms a good interobserver correlation for the BA.info:eu-repo/semantics/openAccessSociedade Brasileira de Ortopedia e TraumatologiaRevista Brasileira de Ortopedia v.54 n.2 20192019-04-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162019000200156en10.1016/j.rbo.2017.12.005
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libraryname SciELO
language English
format Digital
author Labronici,Pedro José
Faria,Guilherme Guerra Pinheiro de
Pedro,Bruno Miranda
Serra,Marcos Donato Franco de Araújo
Pires,Robinson Esteves Santos
Tamontini,Jorge Luiz
spellingShingle Labronici,Pedro José
Faria,Guilherme Guerra Pinheiro de
Pedro,Bruno Miranda
Serra,Marcos Donato Franco de Araújo
Pires,Robinson Esteves Santos
Tamontini,Jorge Luiz
Böhler’s Angle-Comparison Between the pre- and Postoperative in Displaced Intra-Articular Calcaneal Fractures
author_facet Labronici,Pedro José
Faria,Guilherme Guerra Pinheiro de
Pedro,Bruno Miranda
Serra,Marcos Donato Franco de Araújo
Pires,Robinson Esteves Santos
Tamontini,Jorge Luiz
author_sort Labronici,Pedro José
title Böhler’s Angle-Comparison Between the pre- and Postoperative in Displaced Intra-Articular Calcaneal Fractures
title_short Böhler’s Angle-Comparison Between the pre- and Postoperative in Displaced Intra-Articular Calcaneal Fractures
title_full Böhler’s Angle-Comparison Between the pre- and Postoperative in Displaced Intra-Articular Calcaneal Fractures
title_fullStr Böhler’s Angle-Comparison Between the pre- and Postoperative in Displaced Intra-Articular Calcaneal Fractures
title_full_unstemmed Böhler’s Angle-Comparison Between the pre- and Postoperative in Displaced Intra-Articular Calcaneal Fractures
title_sort böhler’s angle-comparison between the pre- and postoperative in displaced intra-articular calcaneal fractures
description Abstract Objective To compare pre- and postoperative variation of radiographicmeasurements of the Böhler angle (BA) in fractures with two types of deviations: severe and moderate. Methods Pre- and postoperative BAs in 31 calcaneal fracture radiographs were retrospectively analyzed. A total of 4 patients were female (6.5%) and 26 were male (83.9%), with age ranging from 23 to 72 years old, and a mean age of 44.5 years old. Results The results show that the postoperative BA was significantly larger than the preoperative BA (p = 0.000). At the intraevaluator and overall assessments, the postoperative BA was, on average, 10.6° higher than the preoperative measure. The postoperative angle was, on average, 108% higher than the preoperative angle. In the global assessment, the agreement between evaluatorswas excellent, bothregarding the estimated point value (0.98) and the intraclass correlation (ICC) confidence interval (CI). Conclusion In the global analysis, the postoperative BAs were, on average, significantly higher than the preoperativemeasurements. The farther from the normal range (20° to 40°) the preoperative angle is, the greater the difference after the surgery. When the preoperative angle was normal, the postoperative angle was, on average, 1.28 times the preoperative measurement. If the preoperative BA was abnormal, the postoperative angle was, on average, 17.3 times the preoperativemeasurement. It was demonstrated that more severe fractures present better anatomic results when compared with moderate fractures. The present study also confirms a good interobserver correlation for the BA.
publisher Sociedade Brasileira de Ortopedia e Traumatologia
publishDate 2019
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162019000200156
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