Non-operative Treatment of Acute Achilles Tendon Rupture: Early Controlled Mobilization Compared With Immobilization
NCT ID: NCT02015364
Last Updated: 2019-08-13
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
130 participants
Study Classification
INTERVENTIONAL
Study Start Date
2014-02-28
Study Completion Date
2018-02-28
Brief Summary
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Study objectives To investigate if early controlled mobilization of the ankle in week 3 to 8 affects the functional outcome and patient reported outcome after treatment of acute Achilles tendon rupture.
Type of study
Randomized, controlled trial (RCT). 130 patients will be included.
Time schedule
Begins January 2014. Study period is 4-5 years; recruitment is expected to span 2 years
Setup At Copenhagen University Hospital Hvidovre the majority of patients with acute ATR are treated non-operatively. A cast is applied in the emergency room. After 2 weeks the bandage is changed to a removable orthosis and full weight bearing is allowed.
Patients who choose to participate in the trial will - through randomisation - be placed in one of the two groups:
1. The intervention group: Must perform controlled mobilization-exercises from the beginning of week 3.
2. The control group: In line with the current treatment regimen the patients must keep the boot on at all times and they are not allowed to move the ankle.
Treatment protocol for the two groups is similar concerning orthose, removal of wedges and weight-bearing. The only difference is that patients in the intervention group are instructed to do ankle exercise.
Post-examinations in relation to the study Follow-up is done at 8 and 16 weeks plus 6 and 12 months. The study's primary endpoint is at the 12 month mark.
Population Patients who are treated for acute Achilles tendon rupture at Copenhagen University Hospital Hvidovre. Patients who fulfil the inclusion criteria but do not wish to participate are treated according the standard regimen (non-operatively without early controlled movement of the ankle joint).
Number of patients 65 patients will be included in each group (a 130 patients in total).
Type of study
Randomized, controlled trial (RCT). 130 patients will be included.
Time schedule
Begins January 2014. Study period is 4-5 years; recruitment is expected to span 2 years
Setup At Copenhagen University Hospital Hvidovre the majority of patients with acute ATR are treated non-operatively. A cast is applied in the emergency room. After 2 weeks the bandage is changed to a removable orthosis and full weight bearing is allowed.
Patients who choose to participate in the trial will - through randomisation - be placed in one of the two groups:
1. The intervention group: Must perform controlled mobilization-exercises from the beginning of week 3.
2. The control group: In line with the current treatment regimen the patients must keep the boot on at all times and they are not allowed to move the ankle.
Treatment protocol for the two groups is similar concerning orthose, removal of wedges and weight-bearing. The only difference is that patients in the intervention group are instructed to do ankle exercise.
Post-examinations in relation to the study Follow-up is done at 8 and 16 weeks plus 6 and 12 months. The study's primary endpoint is at the 12 month mark.
Population Patients who are treated for acute Achilles tendon rupture at Copenhagen University Hospital Hvidovre. Patients who fulfil the inclusion criteria but do not wish to participate are treated according the standard regimen (non-operatively without early controlled movement of the ankle joint).
Number of patients 65 patients will be included in each group (a 130 patients in total).
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Detailed Description
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Study objectives To investigate if early controlled mobilization of the ankle in week 3 to 8 affects the functional outcome and patient reported outcome after treatment of acute Achilles tendon rupture.
Study Design Type of study The study is performed as a single-blinded, randomized, controlled trial (RCT). The randomisation is computer based; opaque envelopes are used. In total 130 patients will be included.
Time schedule Recruitment of patients for the study begins 1st of November 2013. The expected study period is 4-5 years; the recruitment itself is expected to span 2 years, provided that an average of 6 patients is included per month.
Method Setup At Copenhagen University Hospital Hvidovre the majority of patients with acute ATR are treated non-operatively. A cast is applied in the emergency room. After 2 weeks the bandage is changed to a removable orthosis and full weight bearing is allowed.
Patients who choose to participate in the trial will - through randomisation - be placed in one of the two groups:
1. The intervention group: Must perform controlled mobilization-exercises from the beginning of week 3.
2. The control group: In line with the current treatment regimen the patients must keep the boot on at all times and they are not allowed to move the ankle.
Treatment protocol for the two groups is similar concerning orthose, removal of wedges and weight-bearing. The only difference is that patients in the intervention group are instructed to do ankle exercise.
Compliance
The following measures will be taken to ensure compliance within the groups:
1. The intervention group: The patients will be equipped with training diaries in which they will record their training for each of the five daily training sessions.
2. The control group: The orthosis will be sealed. If the boot is removed it can be registered.
Blinding The doctors and physical therapists who will conduct the follow-up will be blinded to the intervention. This is ensured as a Project Nurse will be in charge of the randomisation. The patients will be given a direct phone number for the Project Nurse, as he/she will be in charge of treatment related question and enquiries during the intervention period. Potential medical queries will be discussed with one of the affiliated doctors.
Post-examinations in relation to the study Follow-up is done at 8 and 16 weeks plus 6 and 12 months. The study's primary endpoint is at the 12 month mark.
Population Patients who are treated for acute Achilles tendon rupture at Copenhagen University Hospital Hvidovre. Patients who fulfil the inclusion criteria but do not wish to participate are treated according the standard regimen (non-operatively without early controlled movement of the ankle joint).
Number of patients 65 patients will be included in each group (a 130 patients in total). The sample size calculation is based on a clinical relevant difference of 10 point in ATRS, a standard deviation (SD) of 16 and power of 0.90 (two sided). In a previous material, with a fully comparable population, we found a SD of 16 points at the 1 year post-examination. 54 patients is required in each group; due to the risk of drop out 65 patients will be included in each group.
Inclusion criteria
* Age 18-70 years.
* The patient must be expected to be able to attend rehabilitation and post-examinations.
* The patient must be able to speak and understand Danish.
* The patient must be able to give informed consent. Exclusion criteria
* Former rupture of one or both Achilles tendon(s).
* Previous surgery on the Achilles tendon.
* Fluoroquinolone treatment within the last 6 months.
* Tendinosis treated with corticosteroids (tablets or injections) within the last 6 months.
* The patient has been diagnosed with arterial insufficiency in the legs.
* Terminal illness or severe medical illness: ASA score higher than or equal to 3.
* The space between the rupture and the calcaneus is less than 1cm.
Data Registration
All relevant data is recorded in a specially designed database. The data registration will be reported to the Danish Data Protection Agency.
Primary endpoint The primary endpoint is evaluated at 12 month.
ATRS: Achilles tendon Total Rupture Score 25 A patient reported validation score developed to assess symptoms and physical activity after treatment for Achilles tendon rupture.
Secondary endpoints
Heel-rise work test: Endurance test where the patient stands on one leg and lifts the heel up and down until exhaustion. The number and the height of the heel-rises are counted and measured. The results are then compared to the weight of the patient and the total work is estimated. The MuscleLab ® (Ergo Test Technology, Oslo, Norway) measurement system is used 25.
Single heel-rise test: The patient stands with the foot in neutral position. It is recorded whether the patient is able to make a single heel-rise on the injured leg. The heel-rise is acknowledged if the heel can be lifted at least 2 cm with stretched knee. The MuscleLab ® (Ergo Test Technology, Oslo, Norway) measurement system is used 26.
Ultrasound: The length between the calcaneus and the distal tip of the medial head of the gastrocnemius muscle.
Amlangs ultrasound classification 27.
Cost effectiveness analysis: A cost effectiveness analysis will be performed comparing the two treatment protocols.
DVT screening: Ultra sound for deep Vein Thrombosis (DVT) will be performed after 2 and 8 weeks.
Perimeter of calf: The perimeter of the calf is measured at the widest point on the injured side after 16 weeks. The distance from this point to lower edge of the patella is measured in centimeters. The distance is used to measure the perimeter on the healthy leg and for all subsequent measurements during the trial.
Re-ruptur (RR): It is registered if the tendon re-ruptures during the trial period.
Work: Hard physical labour involving heavy lifting, climbing stairs or climbing the ladder. E.g. bricklayer, paviour, carpenter, dustman, mailman.
Moderate physical work that involves a lot of walking. E.g. salesperson, shop assistant, nurse.
Light physical work which only involves light walking. E.g. office work
Return to work: It is recorded how many days have passed before work is resumed part-time and full-time.
Sport: Does the patient do sports? If yes, what kind, how many hours per week on average and at what level (professional, amateur, exerciser).
Return to sport: It is recorded how many days have passed before sport activities are resumed and how many days have passed before sport activities reach a premorbid level.
Health information: Former disease in or around the Achilles tendon, rheumatic disease, dominant leg.
Other data: Age, Cpr.nr., other master data necessary to identify and call back the patient for post-examinations.
The study is carried out in accordance with the principles of the Helsinki Declaration.
Patients are covered by the patient insurance of Copenhagen University Hospital Hvidovre.
The protocol as well as the patient information and declaration of consent must be approved by the National Committee on Health Research Ethics before inclusion of patients will begin.
The project manager is responsible for informing the National Committee on Health Research Ethics of any critical adverse event and/or major changes of the protocol. All correspondence will be filed by the project manager.
Declaration of consent All patients will receive verbal and written information concerning the study. The inclusion will take place after a declaration of consent has been obtained. It is the responsibility of the investigators to provide patients with comprehensive verbal and written information concerning the course of the study, purpose, potential risks and benefits.
Statistics
The two groups are described descriptively regarding demographic parameters as well as primary and secondary endpoints as described above in the paragraph "Data registration". Comparison of the primary and secondary outcomes of both groups is done by using relevant statistics according to the characteristics of the variables and if necessary the normal distribution. The change of the outcomes over a period of time is described within each group.
The research group
The study is carried out as collaboration between the research unit, Clinical Orthopaedic Research Hvidovre (www.corh.dk) and the Department of Physical- and Occupational Therapy, both at Copenhagen University Hospital Hvidovre.
Data analysis and writing articles The data analysis and the drawing up of articles are done by the project manager and last-author. The project group is regularly involved in the process.
Economic conditions
The study is funded by the Department of Orthopaedic Surgery and the Department of Physiotherapy, Copenhagen University Hospital Hvidovre.
The project group has independently initiated the study. Patients will not receive any fees for participation.
Publication It is expected that the study will be published in an international, high-impact journal. We will furthermore seek to have the results presented at both national and international medical conventions. The results will also be published online and in other relevant media.
Study Design Type of study The study is performed as a single-blinded, randomized, controlled trial (RCT). The randomisation is computer based; opaque envelopes are used. In total 130 patients will be included.
Time schedule Recruitment of patients for the study begins 1st of November 2013. The expected study period is 4-5 years; the recruitment itself is expected to span 2 years, provided that an average of 6 patients is included per month.
Method Setup At Copenhagen University Hospital Hvidovre the majority of patients with acute ATR are treated non-operatively. A cast is applied in the emergency room. After 2 weeks the bandage is changed to a removable orthosis and full weight bearing is allowed.
Patients who choose to participate in the trial will - through randomisation - be placed in one of the two groups:
1. The intervention group: Must perform controlled mobilization-exercises from the beginning of week 3.
2. The control group: In line with the current treatment regimen the patients must keep the boot on at all times and they are not allowed to move the ankle.
Treatment protocol for the two groups is similar concerning orthose, removal of wedges and weight-bearing. The only difference is that patients in the intervention group are instructed to do ankle exercise.
Compliance
The following measures will be taken to ensure compliance within the groups:
1. The intervention group: The patients will be equipped with training diaries in which they will record their training for each of the five daily training sessions.
2. The control group: The orthosis will be sealed. If the boot is removed it can be registered.
Blinding The doctors and physical therapists who will conduct the follow-up will be blinded to the intervention. This is ensured as a Project Nurse will be in charge of the randomisation. The patients will be given a direct phone number for the Project Nurse, as he/she will be in charge of treatment related question and enquiries during the intervention period. Potential medical queries will be discussed with one of the affiliated doctors.
Post-examinations in relation to the study Follow-up is done at 8 and 16 weeks plus 6 and 12 months. The study's primary endpoint is at the 12 month mark.
Population Patients who are treated for acute Achilles tendon rupture at Copenhagen University Hospital Hvidovre. Patients who fulfil the inclusion criteria but do not wish to participate are treated according the standard regimen (non-operatively without early controlled movement of the ankle joint).
Number of patients 65 patients will be included in each group (a 130 patients in total). The sample size calculation is based on a clinical relevant difference of 10 point in ATRS, a standard deviation (SD) of 16 and power of 0.90 (two sided). In a previous material, with a fully comparable population, we found a SD of 16 points at the 1 year post-examination. 54 patients is required in each group; due to the risk of drop out 65 patients will be included in each group.
Inclusion criteria
* Age 18-70 years.
* The patient must be expected to be able to attend rehabilitation and post-examinations.
* The patient must be able to speak and understand Danish.
* The patient must be able to give informed consent. Exclusion criteria
* Former rupture of one or both Achilles tendon(s).
* Previous surgery on the Achilles tendon.
* Fluoroquinolone treatment within the last 6 months.
* Tendinosis treated with corticosteroids (tablets or injections) within the last 6 months.
* The patient has been diagnosed with arterial insufficiency in the legs.
* Terminal illness or severe medical illness: ASA score higher than or equal to 3.
* The space between the rupture and the calcaneus is less than 1cm.
Data Registration
All relevant data is recorded in a specially designed database. The data registration will be reported to the Danish Data Protection Agency.
Primary endpoint The primary endpoint is evaluated at 12 month.
ATRS: Achilles tendon Total Rupture Score 25 A patient reported validation score developed to assess symptoms and physical activity after treatment for Achilles tendon rupture.
Secondary endpoints
Heel-rise work test: Endurance test where the patient stands on one leg and lifts the heel up and down until exhaustion. The number and the height of the heel-rises are counted and measured. The results are then compared to the weight of the patient and the total work is estimated. The MuscleLab ® (Ergo Test Technology, Oslo, Norway) measurement system is used 25.
Single heel-rise test: The patient stands with the foot in neutral position. It is recorded whether the patient is able to make a single heel-rise on the injured leg. The heel-rise is acknowledged if the heel can be lifted at least 2 cm with stretched knee. The MuscleLab ® (Ergo Test Technology, Oslo, Norway) measurement system is used 26.
Ultrasound: The length between the calcaneus and the distal tip of the medial head of the gastrocnemius muscle.
Amlangs ultrasound classification 27.
Cost effectiveness analysis: A cost effectiveness analysis will be performed comparing the two treatment protocols.
DVT screening: Ultra sound for deep Vein Thrombosis (DVT) will be performed after 2 and 8 weeks.
Perimeter of calf: The perimeter of the calf is measured at the widest point on the injured side after 16 weeks. The distance from this point to lower edge of the patella is measured in centimeters. The distance is used to measure the perimeter on the healthy leg and for all subsequent measurements during the trial.
Re-ruptur (RR): It is registered if the tendon re-ruptures during the trial period.
Work: Hard physical labour involving heavy lifting, climbing stairs or climbing the ladder. E.g. bricklayer, paviour, carpenter, dustman, mailman.
Moderate physical work that involves a lot of walking. E.g. salesperson, shop assistant, nurse.
Light physical work which only involves light walking. E.g. office work
Return to work: It is recorded how many days have passed before work is resumed part-time and full-time.
Sport: Does the patient do sports? If yes, what kind, how many hours per week on average and at what level (professional, amateur, exerciser).
Return to sport: It is recorded how many days have passed before sport activities are resumed and how many days have passed before sport activities reach a premorbid level.
Health information: Former disease in or around the Achilles tendon, rheumatic disease, dominant leg.
Other data: Age, Cpr.nr., other master data necessary to identify and call back the patient for post-examinations.
The study is carried out in accordance with the principles of the Helsinki Declaration.
Patients are covered by the patient insurance of Copenhagen University Hospital Hvidovre.
The protocol as well as the patient information and declaration of consent must be approved by the National Committee on Health Research Ethics before inclusion of patients will begin.
The project manager is responsible for informing the National Committee on Health Research Ethics of any critical adverse event and/or major changes of the protocol. All correspondence will be filed by the project manager.
Declaration of consent All patients will receive verbal and written information concerning the study. The inclusion will take place after a declaration of consent has been obtained. It is the responsibility of the investigators to provide patients with comprehensive verbal and written information concerning the course of the study, purpose, potential risks and benefits.
Statistics
The two groups are described descriptively regarding demographic parameters as well as primary and secondary endpoints as described above in the paragraph "Data registration". Comparison of the primary and secondary outcomes of both groups is done by using relevant statistics according to the characteristics of the variables and if necessary the normal distribution. The change of the outcomes over a period of time is described within each group.
The research group
The study is carried out as collaboration between the research unit, Clinical Orthopaedic Research Hvidovre (www.corh.dk) and the Department of Physical- and Occupational Therapy, both at Copenhagen University Hospital Hvidovre.
Data analysis and writing articles The data analysis and the drawing up of articles are done by the project manager and last-author. The project group is regularly involved in the process.
Economic conditions
The study is funded by the Department of Orthopaedic Surgery and the Department of Physiotherapy, Copenhagen University Hospital Hvidovre.
The project group has independently initiated the study. Patients will not receive any fees for participation.
Publication It is expected that the study will be published in an international, high-impact journal. We will furthermore seek to have the results presented at both national and international medical conventions. The results will also be published online and in other relevant media.
Conditions
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Achilles Tendon Rupture
Deep Vein Thrombosis
Study Design
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Allocation Method
RANDOMIZED
Intervention Model
PARALLEL
Primary Study Purpose
TREATMENT
Blinding Strategy
TRIPLE
Caregivers
Investigators
Outcome Assessors
Study Groups
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Controlled early mobilization
The intervention group: Must perform controlled mobilization-exercises from the beginning of week 3 to 8
Group Type
EXPERIMENTAL
Controlled early mobilization
Intervention Type
PROCEDURE
1\. The intervention group: Must perform controlled mobilization-exercises from the beginning of week 3 - 8.
Immobilization
The control group: In line with the current treatment regimen the patients must keep the boot on at all times and they are not allowed to move the ankle.
Group Type
NO_INTERVENTION
No interventions assigned to this group
Interventions
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Controlled early mobilization
1\. The intervention group: Must perform controlled mobilization-exercises from the beginning of week 3 - 8.
Intervention Type
PROCEDURE
Eligibility Criteria
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Inclusion Criteria
* rupture happened within 5 days.
* Age 18-70 years.
* The patient must be expected to be able to attend rehabilitation and post-examinations.
* The patient must be able to speak and understand Danish.
* The patient must be able to give informed consent.
* Age 18-70 years.
* The patient must be expected to be able to attend rehabilitation and post-examinations.
* The patient must be able to speak and understand Danish.
* The patient must be able to give informed consent.
Exclusion Criteria
* Former rupture of one or both Achilles tendon(s).
* Previous surgery on the Achilles tendon.
* Fluoroquinolone treatment within the last 6 months.
* Tendinosis treated with corticosteroids (tablets or injections) within the last 6 months.
* The patient has been diagnosed with arterial insufficiency in the legs.
* Terminal illness or severe medical illness: ASA score higher than or equal to 3.
* The space between the rupture and the calcaneus is less than 1cm.
* Previous surgery on the Achilles tendon.
* Fluoroquinolone treatment within the last 6 months.
* Tendinosis treated with corticosteroids (tablets or injections) within the last 6 months.
* The patient has been diagnosed with arterial insufficiency in the legs.
* Terminal illness or severe medical illness: ASA score higher than or equal to 3.
* The space between the rupture and the calcaneus is less than 1cm.
Minimum Eligible Age
18 Years
Maximum Eligible Age
70 Years
Eligible Sex
ALL
Accepts Healthy Volunteers
No
Sponsors
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DJO Incorporated
INDUSTRY
Sponsor Role
collaborator
The Danish Rheumatism Association
OTHER
Sponsor Role
collaborator
Hvidovre University Hospital
OTHER
Sponsor Role
lead
Responsible Party
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Kristoffer Barfod
MD
Responsibility Role
PRINCIPAL_INVESTIGATOR
Principal Investigators
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Kristoffer W Barfod, MD
Role: PRINCIPAL_INVESTIGATOR
Copenhagen University Hospital, Hvidovre
Locations
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Copenhagen University Hospital Hvidovre
Hvidovre, Copenhagen, Denmark
Site Status
Countries
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Denmark
References
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Barfod KW, Nielsen EG, Olsen BH, Vinicoff PG, Troelsen A, Holmich P. Risk of Deep Vein Thrombosis After Acute Achilles Tendon Rupture: A Secondary Analysis of a Randomized Controlled Trial Comparing Early Controlled Motion of the Ankle Versus Immobilization. Orthop J Sports Med. 2020 Apr 28;8(4):2325967120915909. doi: 10.1177/2325967120915909. eCollection 2020 Apr.
Reference Type
DERIVED
Barfod KW, Hansen MS, Holmich P, Kristensen MT, Troelsen A. Efficacy of early controlled motion of the ankle compared with immobilisation in non-operative treatment of patients with an acute Achilles tendon rupture: an assessor-blinded, randomised controlled trial. Br J Sports Med. 2020 Jun;54(12):719-724. doi: 10.1136/bjsports-2019-100709. Epub 2019 Oct 9.
Reference Type
DERIVED
Barfod KW, Hansen MS, Holmich P, Troelsen A, Kristensen MT. Efficacy of early controlled motion of the ankle compared with no motion after non-operative treatment of an acute Achilles tendon rupture: study protocol for a randomized controlled trial. Trials. 2016 Nov 29;17(1):564. doi: 10.1186/s13063-016-1697-2.
Reference Type
DERIVED
Other Identifiers
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ATR_Denmark_2014
Identifier Type: -
Identifier Source: org_study_id
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