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Brake response time before and after total knee arthroplasty: a prospective cohort study

BACKGROUND: Although the numbers of total knee arthroplasty (TKA) are increasing, there is only a small number of studies investigating driving safety after TKA. The parameter 'Brake Response Time (BRT)' is one of the most important criteria for driving safety and was therefore chosen for...

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Autores principales: Liebensteiner, Michael C, Kern, Michaela, Haid, Christian, Kobel, Conrad, Niederseer, David, Krismer, Martin
Formato: Texto
Lenguaje:English
Publicado: BioMed Central 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2998462/
https://www.ncbi.nlm.nih.gov/pubmed/21087470
http://dx.doi.org/10.1186/1471-2474-11-267
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author Liebensteiner, Michael C
Kern, Michaela
Haid, Christian
Kobel, Conrad
Niederseer, David
Krismer, Martin
author_facet Liebensteiner, Michael C
Kern, Michaela
Haid, Christian
Kobel, Conrad
Niederseer, David
Krismer, Martin
author_sort Liebensteiner, Michael C
collection PubMed
description BACKGROUND: Although the numbers of total knee arthroplasty (TKA) are increasing, there is only a small number of studies investigating driving safety after TKA. The parameter 'Brake Response Time (BRT)' is one of the most important criteria for driving safety and was therefore chosen for investigation. The present study was conducted to test the hypotheses that patients with right- or left-sided TKA show a significant increase in BRT from pre-operative (pre-op, 1 day before surgery) to post-operative (post-op, 2 weeks post surgery), and a significant decrease in BRT from post-op to the follow-up investigation (FU, 8 weeks post surgery). Additionally, it was hypothesized that the BRT of patients after TKA is significantly higher than that of healthy controls. METHODS: 31 of 70 consecutive patients (mean age 65.7 +/- 10.2 years) receiving TKA were tested for their BRT pre-op, post-op and at FU. BRT was assessed using a custom-made driving simulator. We used normative BRT data from 31 healthy controls for comparison. RESULTS: There were no significant increases between pre-op and post-op BRT values for patients who had undergone left- or right-sided TKA. Even the proportion of patients above a BRT threshold of 700 ms was not significantly increased postop. Controls had a BRT which was significantly better than the BRT of patients with right- or left-sided TKA at all three time points. CONCLUSION: The present study showed a small and insignificant postoperative increase in the BRT of patients who had undergone right- or left-sided TKA. Therefore, we believe it is not justified to impair the patient's quality of social and occupational life post-surgery by imposing restrictions on driving motor vehicles beyond an interval of two weeks after surgery.
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spelling pubmed-29984622010-12-08 Brake response time before and after total knee arthroplasty: a prospective cohort study Liebensteiner, Michael C Kern, Michaela Haid, Christian Kobel, Conrad Niederseer, David Krismer, Martin BMC Musculoskelet Disord Research Article BACKGROUND: Although the numbers of total knee arthroplasty (TKA) are increasing, there is only a small number of studies investigating driving safety after TKA. The parameter 'Brake Response Time (BRT)' is one of the most important criteria for driving safety and was therefore chosen for investigation. The present study was conducted to test the hypotheses that patients with right- or left-sided TKA show a significant increase in BRT from pre-operative (pre-op, 1 day before surgery) to post-operative (post-op, 2 weeks post surgery), and a significant decrease in BRT from post-op to the follow-up investigation (FU, 8 weeks post surgery). Additionally, it was hypothesized that the BRT of patients after TKA is significantly higher than that of healthy controls. METHODS: 31 of 70 consecutive patients (mean age 65.7 +/- 10.2 years) receiving TKA were tested for their BRT pre-op, post-op and at FU. BRT was assessed using a custom-made driving simulator. We used normative BRT data from 31 healthy controls for comparison. RESULTS: There were no significant increases between pre-op and post-op BRT values for patients who had undergone left- or right-sided TKA. Even the proportion of patients above a BRT threshold of 700 ms was not significantly increased postop. Controls had a BRT which was significantly better than the BRT of patients with right- or left-sided TKA at all three time points. CONCLUSION: The present study showed a small and insignificant postoperative increase in the BRT of patients who had undergone right- or left-sided TKA. Therefore, we believe it is not justified to impair the patient's quality of social and occupational life post-surgery by imposing restrictions on driving motor vehicles beyond an interval of two weeks after surgery. BioMed Central 2010-11-18 /pmc/articles/PMC2998462/ /pubmed/21087470 http://dx.doi.org/10.1186/1471-2474-11-267 Text en Copyright ©2010 Liebensteiner et al; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Liebensteiner, Michael C
Kern, Michaela
Haid, Christian
Kobel, Conrad
Niederseer, David
Krismer, Martin
Brake response time before and after total knee arthroplasty: a prospective cohort study
title Brake response time before and after total knee arthroplasty: a prospective cohort study
title_full Brake response time before and after total knee arthroplasty: a prospective cohort study
title_fullStr Brake response time before and after total knee arthroplasty: a prospective cohort study
title_full_unstemmed Brake response time before and after total knee arthroplasty: a prospective cohort study
title_short Brake response time before and after total knee arthroplasty: a prospective cohort study
title_sort brake response time before and after total knee arthroplasty: a prospective cohort study
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2998462/
https://www.ncbi.nlm.nih.gov/pubmed/21087470
http://dx.doi.org/10.1186/1471-2474-11-267
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