Biomechanical Analysis of Distal Radius (Greenstick) Fracture Healing

NCT ID: NCT06510595

Last Updated: 2024-07-24

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

NOT_YET_RECRUITING

Clinical Phase

PHASE1/PHASE2

Total Enrollment

2 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-07-16

Study Completion Date

2025-06-30

Brief Summary

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The study will be conducted to investigate the effects of electrical charges (flexoelectric effect) \& mechanical brachioradialis muscle bending force on the displacement and strain of fracture gap on children with Distal radius greenstick fracture via finite element method.

Detailed Description

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Distal radius fractures are common fractures and highly prevalent especially in children, due to skeletal immaturity. They may present as greenstick fractures; due to falling on the outstretched hand during sporting events.

This type of fracture causes deformation and angulation on the cortex layer of bone, while the other side remains intact due to the higher proportion of collagen and flexibility in immature bones, making them more prone to bending rather than breaking completely.

The biomechanical environment plays a dominant role in the process of fracture healing.

It controls the communication network of biological tissues and triggers the complex proliferation process.

This mechanical load is originated from muscle contraction along the axis of bone, which improves the healing process and accelerates the earlier return to weight bearing.

Likewise, the electrical stimulation plays a superior role in acceleration of bone healing. It enhances the cells migration and proliferation process, increases mineralization, and osteogenic genes activation. The bone minerals can generate electromechanical signals through the flexoelectricity effect, which they polarize in response to bending stress force.

While finite element method is an advanced technique and a promising field to simulate the mechanical properties and predict the biomechanical behaviors on the biological structures, no previous research took advantage of both flexoelectricity and mechanical principles to simulate and predict the healing behavior on specific case.

HYPOTHESES:

H0: There will be no significant effect of brachioradialis muscle bending force and flexoelectric effect on strain of distal radius greenstick fracture.

METHODOLOGY

1. The study is analytical and will be conducted by (Finite Element Analysis) study with the following steps:

* Modelling the radius fracture with angle ≤ 15 degrees.
* Simulation the strain and displacement of fracture site by computerized mathematical equations with applying brachioradialis muscle force within 10-40 N and electrical charge.
2. Validation the results of computerized simulation by experimental case-control study with the following steps.

Participants :

Child A: The child will receive active elbow flexion exercise with electrotherapy. Child B: The child will be managed by conservative treatment with brace only.

Instrumentation used in treatment:

Transcutaneous Electrical Nerve Stimulation (TENS) is a form of electrotherapy commonly used in physiotherapy to relieve pain. The setting will be adjusted on 2±0.4 Hz sinusoidal wave, pulse width is typically set between 50-200 microseconds and each session lasts between 20-30 minutes.

After the electrotherapy session, active assisted elbow flexion exercise will be applied with forearm in neutral position with 3 × 15 repetition to enhance the role of horizontal components of brachioradialis muscle force.

Conditions

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Fractures, Bone

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Case-Control study Child A: The child will receive active elbow flexion exercise with electrotherapy.

Child B: The child will be managed by conservative treatment with brace only.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Active Treatment Arm

The child will receive active elbow flexion exercise with electrotherapy.

Group Type EXPERIMENTAL

Active Treatment Arm

Intervention Type OTHER

Electrotherapy:

Transcutaneous Electrical Nerve Stimulation (TENS) will be placed across the fracture segments. The setting will be adjusted to 2±0.4 Hz sinusoidal wave, with a pulse width set between 50-200 microseconds, and each session will last between 20-30 minutes.

Active Elbow Flexion Exercise:

Following the electrotherapy session, the child will perform active assisted elbow flexion exercises with the forearm in a neutral position. This exercise will consist of 3 sets of 15 repetitions to enhance the role of the horizontal components of the brachioradialis muscle force.

Control Treatment Arm

The child will be managed with conservative treatment using a brace only.

Group Type ACTIVE_COMPARATOR

Control Treatment Arm

Intervention Type OTHER

The child will wear a brace as a conservative treatment method.

Interventions

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Active Treatment Arm

Electrotherapy:

Transcutaneous Electrical Nerve Stimulation (TENS) will be placed across the fracture segments. The setting will be adjusted to 2±0.4 Hz sinusoidal wave, with a pulse width set between 50-200 microseconds, and each session will last between 20-30 minutes.

Active Elbow Flexion Exercise:

Following the electrotherapy session, the child will perform active assisted elbow flexion exercises with the forearm in a neutral position. This exercise will consist of 3 sets of 15 repetitions to enhance the role of the horizontal components of the brachioradialis muscle force.

Intervention Type OTHER

Control Treatment Arm

The child will wear a brace as a conservative treatment method.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Child with green stick fracture in the distal third of radius bone.
* Child with immobilized brace or splint.
* Angle of fracture is ≤ 15 degrees.

Exclusion Criteria

The participants will be excluded from this study if they have one of the following:

* Other type of bone fracture.
* Osteoporotic bone.
* Neurological diseases.
Minimum Eligible Age

5 Years

Maximum Eligible Age

10 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Cairo University

OTHER

Sponsor Role lead

Responsible Party

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Mohamed Hassan Mohamed Hassan Elsheikh

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Enas Youssif, Professor and Chairperson

Role: STUDY_CHAIR

Musculoskeletal Disorders and its Surgery Faculty of Physical Therapy, Cairo University.

Amr Imam, Professor

Role: STUDY_DIRECTOR

Applied Mathematics, Damanhour University.

Ahmed Resk Mohammed, Assistant Professor

Role: STUDY_DIRECTOR

Department of Orthopedic Surgery, Faculty of Medicine, Cairo University

Dina Abd Allah, Lecturer

Role: STUDY_DIRECTOR

Musculoskeletal Disorders and its Surgery Faculty of Physical Therapy, Cairo University.

Central Contacts

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Mohamed Elsheikh

Role: CONTACT

07377613916

References

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Alierta JA, Perez MA, Garcia-Aznar JM. An interface finite element model can be used to predict healing outcome of bone fractures. J Mech Behav Biomed Mater. 2014 Jan;29:328-38. doi: 10.1016/j.jmbbm.2013.09.023. Epub 2013 Oct 8.

Reference Type BACKGROUND
PMID: 24145150 (View on PubMed)

Augat P, Hollensteiner M, von Ruden C. The role of mechanical stimulation in the enhancement of bone healing. Injury. 2021 Jun;52 Suppl 2:S78-S83. doi: 10.1016/j.injury.2020.10.009. Epub 2020 Oct 2.

Reference Type BACKGROUND
PMID: 33041020 (View on PubMed)

Bhavsar MB, Han Z, DeCoster T, Leppik L, Costa Oliveira KM, Barker JH. Electrical stimulation-based bone fracture treatment, if it works so well why do not more surgeons use it? Eur J Trauma Emerg Surg. 2020 Apr;46(2):245-264. doi: 10.1007/s00068-019-01127-z. Epub 2019 Apr 6.

Reference Type BACKGROUND
PMID: 30955053 (View on PubMed)

Boland MR, Spigelman T, Uhl TL. The function of brachioradialis. J Hand Surg Am. 2008 Dec;33(10):1853-9. doi: 10.1016/j.jhsa.2008.07.019.

Reference Type BACKGROUND
PMID: 19084189 (View on PubMed)

Cariati I, Bonanni R, Onorato F, Mastrogregori A, Rossi D, Iundusi R, Gasbarra E, Tancredi V, Tarantino U. Role of Physical Activity in Bone-Muscle Crosstalk: Biological Aspects and Clinical Implications. J Funct Morphol Kinesiol. 2021 Jun 21;6(2):55. doi: 10.3390/jfmk6020055.

Reference Type BACKGROUND
PMID: 34205747 (View on PubMed)

Green JS, Williams SC, Finlay D, Harper WM. Distal forearm fractures in children:the role of radiographs during follow up. Injury. 1998 May;29(4):309-12. doi: 10.1016/s0020-1383(97)00208-8.

Reference Type BACKGROUND
PMID: 9743754 (View on PubMed)

Gutierrez-Espinoza H, Rubio-Oyarzun D, Olguin-Huerta C, Gutierrez-Monclus R, Pinto-Concha S, Gana-Hervias G. Supervised physical therapy vs home exercise program for patients with distal radius fracture: A single-blind randomized clinical study. J Hand Ther. 2017 Jul-Sep;30(3):242-252. doi: 10.1016/j.jht.2017.02.001. Epub 2017 Mar 22.

Reference Type BACKGROUND
PMID: 28342739 (View on PubMed)

Herrmann M, Engelke K, Ebert R, Muller-Deubert S, Rudert M, Ziouti F, Jundt F, Felsenberg D, Jakob F. Interactions between Muscle and Bone-Where Physics Meets Biology. Biomolecules. 2020 Mar 10;10(3):432. doi: 10.3390/biom10030432.

Reference Type BACKGROUND
PMID: 32164381 (View on PubMed)

Khare D, Basu B, Dubey AK. Electrical stimulation and piezoelectric biomaterials for bone tissue engineering applications. Biomaterials. 2020 Nov;258:120280. doi: 10.1016/j.biomaterials.2020.120280. Epub 2020 Aug 7.

Reference Type BACKGROUND
PMID: 32810650 (View on PubMed)

Kohata K, Itoh S, Takeda S, Kanai M, Yoshioka T, Suzuki H, Yamashita K. Enhancement of fracture healing by electrical stimulation in the comminuted intraarticular fracture of distal radius. Biomed Mater Eng. 2013;23(6):485-93. doi: 10.3233/BME-130774.

Reference Type BACKGROUND
PMID: 24165551 (View on PubMed)

Lieber RL, Murray WM, Clark DL, Hentz VR, Friden J. Biomechanical properties of the brachioradialis muscle: Implications for surgical tendon transfer. J Hand Surg Am. 2005 Mar;30(2):273-82. doi: 10.1016/j.jhsa.2004.10.003.

Reference Type BACKGROUND
PMID: 15781349 (View on PubMed)

Quadlbauer S, Pezzei C, Jurkowitsch J, Rosenauer R, Kolmayr B, Keuchel T, Simon D, Beer T, Hausner T, Leixnering M. Rehabilitation after distal radius fractures: is there a need for immobilization and physiotherapy? Arch Orthop Trauma Surg. 2020 May;140(5):651-663. doi: 10.1007/s00402-020-03367-w. Epub 2020 Mar 19.

Reference Type BACKGROUND
PMID: 32193679 (View on PubMed)

Schmale GA, Mazor S, Mercer LD, Bompadre V. Lack of Benefit of Physical Therapy on Function Following Supracondylar Humeral Fracture: A Randomized Controlled Trial. J Bone Joint Surg Am. 2014 Jun 4;96(11):944-950. doi: 10.2106/JBJS.L.01696. Epub 2014 Jun 4.

Reference Type BACKGROUND
PMID: 24897743 (View on PubMed)

Other Identifiers

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P.T.REC/012/005143

Identifier Type: -

Identifier Source: org_study_id

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