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Lumbar Spine FusionNCT03349580

Early Initiation of a Strength Training Based Rehabilitation After Lumbar Spine Fusion Improves Core Muscle Strength

A study testing The training group in people with Lumbar Spine Fusion, run by Dejan Kernc.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

To analyze safety and the effects of early initiation of the rehabilitation. Including the objective measurement outcomes after lumbar spine fusion, based on the principles of strength training. Read more about this study

Who is it for?
Ages 45 to 70 years
Conditions the study is for
Lumbar Spine Fusion
What is being tested?
The training group
Could I receive a placebo?
No, everyone receives an active treatment
How many people
27 participants
Where
No sites listed yet
Study dates
4 Apr 2014to 15 Sep 2017
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 45 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Primary diagnosis of degenerative, low-grade isthmic spondylolisthesis or degenerative disc disease with or without spinal stenosis.

Who cannot join

  • Previous lumbar fusion surgery, degenerative or idiopathic scoliosis, inflammatory disease, and history of malignancy.

About this study

To analyze safety and the effects of early initiation of the rehabilitation. Including the objective measurement outcomes after lumbar spine fusion, based on the principles of strength training.

Read the detailed description

The 27 patients were recruited for the study, aged 45 to 70 years, who had undergone lumbar spine fusion. The patients were randomized in to two groups. The strength training group started rehabilitation 3 weeks after surgery. The patients exercised two times per week, over 9 weeks. The focus was on muscle activation of lumbopelvic muscles stabilization. The control group followed a standard postoperative protocol, where no exercises were performed at the rehabilitation stage. The functional outcomes and the plain radiographs were evaluated after 3 weeks and subsequently after 3 and 18 months after the surgery.

Being tested
The training group
Keywords
rehabilitation, randomized controlled trial, strength training, early initiation, intra-abdominal pressure

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • The training groupBehavioural

    The training group performed rehabilitation program twice per week over 9 weeks. The group commenced rehabilitation 3 weeks after the surgery. During the phase one training (week 1 to week 5), the isometric exercises were preformed on the trunk extension, flexion and lateral flexion muscles. During the phase 2 (week 6 to week 9), the exercises were performed on the strength machines and duration of the exercises were maintained and prolonged to 30 seconds. The leg adduction and hip extension exercises were added. The patients were instructed to perform abdominal bracing (IAP) and maintain the neutral position of their lumbar spine before and during the exercises.

Study groups in NCT03349580
Study groupRoleWhat they receive
The training groupExperimentalThe training group performed rehabilitation program twice per week over 9 weeks. The group commenced rehabilitation 3 weeks after the surgery. During the phase one training (week 1 to week 5), the isometric exercises were preformed on the trunk extension, flexion and lateral flexion muscles. During the phase 2 (week 6 to week 9), the exercises were performed on the strength machines and duration of the exercises were maintained and prolonged to 30 seconds. The leg adduction and hip extension exercises were added. The patients were instructed to perform abdominal bracing (IAP) and maintain the neutral position of their lumbar spine before and during the exercises.
Receives: Behavioral: The training group
The control groupNo interventionThe control group followed the hospital's standard protocol. These do not include exercises or physiotherapy before 3 months after surgery.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change of isometric trunk muscle strength

    The isometric trunk muscle extension, flexion and lateral flexion strength were measured using a strain-gauge dynamometer. Maximum torque was calculated from the force sensor data (Newton) and the lever as a distance between the middle line of the belt and the iliac crest level (meter). A higher values represent a better outcome. The scale range were 48 Nm -830 Nm for extension, 12 Nm - 1010 Nm for flexion, 35 Nm - 680 Nm for lateral flexion right and 16 Nm - 640 Nm for lateral flexion left.

    Measured: Baseline, 9 weeks and 18 months.

  2. Change of low back pain disability as measured by the Oswestry Disability Index

    Self-reported levels of low back pain disability. The Oswestry Disability Index is presented as a score from 0 to 100 where lower scores represent lower levels of low back pain disability.

    Measured: Baseline, 9 weeks and 18 months.

Secondary outcomes (5)
  1. Change of walking distance as measured by the 6-min walking test

    The walked distance was measured. A higher values represent a better outcome. The scale range was from 40m to 800m.

    Measured: Baseline, 9 weeks and 18 months.

  2. Change the repetition of stand-ups during the Chair stand test.

    A number of stand-ups in 30 seconds. A higher values represent a better outcome. The scale range was from 1 to 29 repetitions.

    Measured: Baseline, 9 weeks and 18 months.

  3. Change of height as measured by the Standing reach height test.

    A height which someone can reach. A higher values represent a better outcome. The scale range was from 190cm to 236cm.

    Measured: Baseline, 9 weeks and 18 months.

  4. Change of Intra-abdominal pressure pre-activation pattern.

    A lateral abdominal force sensor was used to estimate the time delay between the start of the increase in intra-abdominal pressure and the start of the force rise from the force plate (action start). The initiation of intra-abdominal pressure before starting the action contributed to better performance and result. The scale range was from -0.7s to 0.7s.

    Measured: Baseline, 9 weeks and 18 months.

  5. Change of pain disability as measured by the Visual Analogue Scale.

    Self-reported levels of pain disability. The Visual Analogue Scale presents back pain intensity with scores from 0 to 10, where 0 = "no problems" and 10 = "maximum problems".

    Measured: Baseline, 9 weeks and 18 months.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Nov 2017
  2. Study start4 Apr 2014
  3. Primary completion25 Nov 2016
  4. Study completion15 Sep 2017

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Randomized Controlled Trial
Masking
Single blind
Who is masked
Participant
Enrolment
27 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03349580
Sponsor's protocol ID
EarlyRehab-LSF
Status last verified
Nov 2017
First submitted
12 Nov 2017
Last updated
24 Nov 2017
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Christensen FB, Laurberg I, Bunger CE. Importance of the back-cafe concept to rehabilitation after lumbar spinal fusion: a randomized clinical study with a 2-year follow-up. Spine (Phila Pa 1976). 2003 Dec 1;28(23):2561-9. doi: 10.1097/01.BRS.0000097890.96524.A1.

    PubMed 14652472
  • Nielsen PR, Jorgensen LD, Dahl B, Pedersen T, Tonnesen H. Prehabilitation and early rehabilitation after spinal surgery: randomized clinical trial. Clin Rehabil. 2010 Feb;24(2):137-48. doi: 10.1177/0269215509347432.

    PubMed 20103575
  • Greenwood J, McGregor A, Jones F, Mullane J, Hurley M. Rehabilitation Following Lumbar Fusion Surgery: A Systematic Review and Meta-Analysis. Spine (Phila Pa 1976). 2016 Jan;41(1):E28-36. doi: 10.1097/BRS.0000000000001132.

    PubMed 26555833
  • Oestergaard LG, Nielsen CV, Bunger CE, Svidt K, Christensen FB. The effect of timing of rehabilitation on physical performance after lumbar spinal fusion: a randomized clinical study. Eur Spine J. 2013 Aug;22(8):1884-90. doi: 10.1007/s00586-013-2717-5. Epub 2013 Apr 6.

    PubMed 23563500
  • Oestergaard LG, Christensen FB, Nielsen CV, Bunger CE, Fruensgaard S, Sogaard R. Early versus late initiation of rehabilitation after lumbar spinal fusion: economic evaluation alongside a randomized controlled trial. Spine (Phila Pa 1976). 2013 Nov 1;38(23):1979-85. doi: 10.1097/BRS.0b013e3182a7902c.

    PubMed 23928716
  • Weinstein JN, Lurie JD, Tosteson TD, Hanscom B, Tosteson AN, Blood EA, Birkmeyer NJ, Hilibrand AS, Herkowitz H, Cammisa FP, Albert TJ, Emery SE, Lenke LG, Abdu WA, Longley M, Errico TJ, Hu SS. Surgical versus nonsurgical treatment for lumbar degenerative spondylolisthesis. N Engl J Med. 2007 May 31;356(22):2257-70. doi: 10.1056/NEJMoa070302.

    PubMed 17538085
  • Deyo RA, Gray DT, Kreuter W, Mirza S, Martin BI. United States trends in lumbar fusion surgery for degenerative conditions. Spine (Phila Pa 1976). 2005 Jun 15;30(12):1441-5; discussion 1446-7. doi: 10.1097/01.brs.0000166503.37969.8a.

    PubMed 15959375
  • Cholewicki J, Juluru K, McGill SM. Intra-abdominal pressure mechanism for stabilizing the lumbar spine. J Biomech. 1999 Jan;32(1):13-7. doi: 10.1016/s0021-9290(98)00129-8.

    PubMed 10050947
  • Hodges PW, Cresswell AG, Daggfeldt K, Thorstensson A. In vivo measurement of the effect of intra-abdominal pressure on the human spine. J Biomech. 2001 Mar;34(3):347-53. doi: 10.1016/s0021-9290(00)00206-2.

    PubMed 11182126
  • Oestergaard LG, Nielsen CV, Bunger CE, Sogaard R, Fruensgaard S, Helmig P, Christensen FB. The effect of early initiation of rehabilitation after lumbar spinal fusion: a randomized clinical study. Spine (Phila Pa 1976). 2012 Oct 1;37(21):1803-9. doi: 10.1097/BRS.0b013e31825a17ab.

    PubMed 22565381
  • Abbott AD, Tyni-Lenne R, Hedlund R. Early rehabilitation targeting cognition, behavior, and motor function after lumbar fusion: a randomized controlled trial. Spine (Phila Pa 1976). 2010 Apr 15;35(8):848-57. doi: 10.1097/BRS.0b013e3181d1049f.

    PubMed 20354468
  • Kernc D, Strojnik V, Vengust R. Early initiation of a strength training based rehabilitation after lumbar spine fusion improves core muscle strength: a randomized controlled trial. J Orthop Surg Res. 2018 Jun 19;13(1):151. doi: 10.1186/s13018-018-0853-7.

    PubMed 29914580

Questions about this trial

What is this clinical trial studying?

A study testing The training group in people with Lumbar Spine Fusion, run by Dejan Kernc.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 24 Nov 2017. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change of isometric trunk muscle strength (time frame: Baseline, 9 weeks and 18 months.). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03349580, which also lists 12 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Nov 2017.

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