The Effect of Foot Orthoses on the Braking Response Time

NCT ID: NCT02354066

Last Updated: 2020-03-31

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

42 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-06-30

Study Completion Date

2015-09-30

Brief Summary

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Patients often seek advice from their treating doctor if they are able to drive with a foot orthosis after a first metatarsal osteotomy for symptomatic hallux valgus and/or after an additional forefoot surgery. This challenging question is of obvious importance for the patient and other road users. Previous studies already issued driving ability after different orthopedic procedures and with knee and ankle devices on the brake reaction time but missed to address the same for foot orthoses after hallux valgus or forefoot surgery.

This missing evidence made us evaluate the influence of wearing a foot orthosis after a first metatarsal osteotomy or forefoot surgery on driving ability (brake response time; BRT).

The overall time frame is about nine weeks; each appointment for BRT measurement takes about fifteen to twenty minutes. The first BRT measurement is one day before the foot surgery without a foot orthosis (normal shoe)and with the orthoses (control run) (1) at two days (2), two weeks (3), four weeks (4) and six weeks (5) after the operation with a HVS and a FRS and eight weeks postoperative without a foot orthoses (6).

Detailed Description

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The purpose of this study is to asses driving ability (brake response time) and the influence of two types of different foot orthoses after foot surgery.

Therefore we have two groups:

1. Hallux valgus surgery (Chevron, Austin, SCARF, Akin etc.)
2. Hallux valgus and additional forefoot surgery (Chevron, Austin, SCARF, Akin etc. and WEIL - Osteotomy, Peg-in-Hole, etc.)

BRT (brake response time) is assessed with commonly used right-sided hallux valgus shoes (HVS) and forefoot relief shoes (FRS). We measure the BRT at six different time points: one day before surgery without a foot orthosis (normal shoe)and with the orthoses (control run) (1) at two days (2), two weeks (3), four weeks (4) and six weeks (5) after the operation with a HVS and a FRS and eight weeks postoperative without a foot orthoses (6). The overall time frame is about nine weeks; each appointment for BRT measurement takes about fifteen to twenty minutes.

The BRT was assessed using a custom-made driving simulator as used in previously published studies. Participants were instructed to apply the brake pedal exclusively with the right foot as quickly as possible on a visual stimulus. The time interval until the subject operated the brake was measured 20 times, averaged and then taken as BRT value.

Conditions

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Hallux Valgus

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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Hallux valgus Surgery

Measurement of the Brake Response Time by Pat. undergoing hallux valgus surgery (first metatarsal osteotomy, Chevron, SCARF, Austin, etc.)

Group Type EXPERIMENTAL

Hallux valgus Shoe

Intervention Type DEVICE

Brake response measurement after surgery with this foot orthosis

Forefoot relief shoe

Intervention Type DEVICE

Brake response measurement after surgery with this foot orthosis

Hallux valgus and forefoot surgery

Measurement of the Brake Response Time by Pat. undergoing hallux valgus surgery (first metatarsal osteotomy; Chevron, Austin, SCARF, etc.) and additional forefoot surgery (PIP arthrodesis, second/third/etc. metatarsal osteotomy, etc.; Peg-in-Hole, WEIL-Osteotomy, etc.)

Group Type EXPERIMENTAL

Hallux valgus Shoe

Intervention Type DEVICE

Brake response measurement after surgery with this foot orthosis

Forefoot relief shoe

Intervention Type DEVICE

Brake response measurement after surgery with this foot orthosis

Control Run

Measurement of the Brake Response Time by Healthy Participants; control run; brake response time measurement with normal shoe and both foot orthoses

Group Type EXPERIMENTAL

Hallux valgus Shoe

Intervention Type DEVICE

Brake response measurement after surgery with this foot orthosis

Forefoot relief shoe

Intervention Type DEVICE

Brake response measurement after surgery with this foot orthosis

Retail Shoe

Intervention Type DEVICE

Brake response time measurement before surgery (control run)

Interventions

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Hallux valgus Shoe

Brake response measurement after surgery with this foot orthosis

Intervention Type DEVICE

Forefoot relief shoe

Brake response measurement after surgery with this foot orthosis

Intervention Type DEVICE

Retail Shoe

Brake response time measurement before surgery (control run)

Intervention Type DEVICE

Other Intervention Names

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ofa® hallux valgus shoe GloboPed® Forefoot relief orthosis

Eligibility Criteria

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Inclusion Criteria

* participants must have a valid driver´s license,
* used the right foot exclusively for accelerating and braking,
* free of any medical condition that could impair the ability to drive

Exclusion Criteria

* taking medications that could affect reaction time (e.g. benzodiazepines and over-the-counter allergy and cold medications)
* had a history of alcohol or drug abuse,
* a central nervous system disorder such as epilepsy,
* a metabolic disorder,
* a psychiatric disorder,
* musculoskeletal disease,
* any visual acuity disorder (macular degeneration etc.; glasses allowed)
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Medical University Innsbruck

OTHER

Sponsor Role lead

Responsible Party

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Dammerer Dietmar, MD

Dr. med. univ. Dietmar Dammerer

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Rainer Biedermann, Priv.Doz.Dr.

Role: PRINCIPAL_INVESTIGATOR

University Hospital of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria, Europe

Locations

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Department of Orthopedic; Medical University of Innsbruck

Innsbruck, Tyrol, Austria

Site Status

Countries

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Austria

References

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Dammerer D, Giesinger JM, Biedermann R, Haid C, Krismer M, Liebensteiner M. Effect of knee brace type on braking response time during automobile driving. Arthroscopy. 2015 Mar;31(3):404-9. doi: 10.1016/j.arthro.2014.09.003. Epub 2014 Nov 8.

Reference Type BACKGROUND
PMID: 25442646 (View on PubMed)

Liebensteiner MC, Rochau H, Renz P, Smekal V, Rosenberger R, Birkfellner F, Haid C, Krismer M. Brake response time returns to the pre-surgical level 6 weeks after unicompartmental knee arthroplasty. Knee Surg Sports Traumatol Arthrosc. 2014 Aug;22(8):1926-31. doi: 10.1007/s00167-014-3050-1. Epub 2014 May 15.

Reference Type BACKGROUND
PMID: 24832693 (View on PubMed)

Dammerer D, Braito M, Biedermann R, Ban M, Giesinger J, Haid C, Liebensteiner MC, Kaufmann G. Effect of surgical shoes on brake response time after first metatarsal osteotomy--a prospective cohort study. J Orthop Surg Res. 2016 Jan 20;11:14. doi: 10.1186/s13018-016-0350-9.

Reference Type DERIVED
PMID: 26792613 (View on PubMed)

Other Identifiers

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INS-621000-0500

Identifier Type: REGISTRY

Identifier Source: secondary_id

602006052013

Identifier Type: -

Identifier Source: org_study_id

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