Effects of Photobiomodulation on Functional Recovery of Proximal Humerus Fractures

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

RECRUITING

Clinical Phase

NA

Total Enrollment

42 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-04-30

Study Completion Date

2026-04-30

Brief Summary

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Among the various complications of the postoperative evolution of proximal humerus fractures (PHF) are pain and joint stiffness, generating significant functional limitation in the affected limb. This randomized controlled double-blind clinical study aims to evaluate the effects of photobiomodulation (PBM) on the functional recovery of participants with PHF surgically treated with special locking plates. The primary outcome, to be assessed at 1, 2, 4, 8, and 12 weeks, will be shoulder function recovery using the Quick-DASH functional scale. Secondary outcomes will include shoulder range of motion assessments with a digital goniometer, quality of life measured using the SF-6 questionnaire, and the occurrence of adverse effects during all experimental periods. Pain will be evaluated at 1, 2, 4, 8, and 12 weeks; fracture consolidation will be assessed through radiographic examinations at 4, 8, and 12 weeks; and muscular strength will be evaluated through progressive weight-bearing exercises at 8 and 12 weeks. Data will be presented as means ± SD, with significance set at a p-value of 0.05.

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Detailed Description

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Among the complications of postoperative recovery from proximal humerus fractures (PHF) are pain and joint stiffness, which can significantly limit limb function. Physical therapy is standard for both surgical and non-surgical treatments. Research suggests that photobiomodulation (PBM) positively affects fracture repair, regeneration, analgesia, and functional improvement, but more standardization and evidence are needed. This double-blind, randomized controlled study aims to assess PBM's impact on functional recovery in patients with surgically treated PHF using specialized locking plates. Forty-two participants will be randomly assigned (1:1) to either the Control group (standard physiotherapy with simulated PBM) or the FBM group (standard physiotherapy with active PBM). The PBM will be administered at home daily for 10 minutes using a device with 318 LEDs: 159 at 660 nm (28.5 mW; 12 J/cm²; 17 J per LED) and 159 at 850 nm (23 mW; 10 J/cm²; 14 J per LED). PBM and physiotherapy sessions (30 minutes, twice a week) will continue for 12 weeks. Participants and examiners will be blinded to group allocation. The primary outcome is shoulder function recovery, measured by the Quick-DASH scale, that will be evaluated 1, 2, 4, 8, and 12 weeks after surgery . Secondary outcomes include shoulder range of motion (digital goniometer), quality of life (SF-6 questionnaire), and adverse effects. The intensity of spontaneous pain and pain during movement of the injured limb will be assessed using the visual analog scale for pain. Pressure pain at the fracture site will be evaluated with a digital algometer (MED DOR, Governador Valadares, MG, Brazil) at 1, 2, 4, 8, and 12 weeks. Fracture consolidation via radiographs at 4, 8, and 12 weeks, and muscle strength through progressive weight bearing at 8 and 12 weeks. Data will be stored, organized, and analyzed using appropriate statistical tests, with a significance level set at 5%.

Keywords: Photobiomodulation, Humerus Fracture, Quick-DASH, Quality of life, Phototherapy

Conditions

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Bone Fracture Humerus Fracture Surgery

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Forty-two participants will be randomly assigned (1:1) into two groups: the Control group (standard physical therapy combined with simulated PBM) and the PBM group (standard physical therapy combined with active PBM). Participants will apply PBM at home daily for 10 minutes using a device containing 318 light-emitting diodes (LEDs), with 159 LEDs at 660 nm (28.5 mW; 12 J/cm2; 17 J per LED) and 159 LEDs at 850 nm (23 mW; 10 J/cm2; 14 J per LED). PBM and physical therapy sessions (30 minutes, twice a week) will be conducted over 12 weeks.

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Outcome Assessors

1 Researcher, who will prepare the randomization and envelopes to ensure allocation concealment.

1 Researcher (resident physician) who will include subjects, open the envelope with the allocation, deliver the appropriate PBM device, and provide instructions.

4 Surgeons all surgical procedures and eligibility assessments. 4 Orthopedic physician evaluators (blinded to the experimental group of each participant), responsible for all evaluations from the postoperative period through outpatient follow-up.

1\. The Principal Investigator will be aware of the groups; he will centralize data collection and will not participate in any evaluations.

1 Physical Therapist (blinded to the experimental group of each participant) 3 resident Physicians (blinded to each participant's experimental group) will contact participants daily

Study Groups

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Photobiomodulation Group

The shoulder brace (Cosmedical, Mauá, SP, Brazil) contains 159 red LEDs and 159 infrared LEDs interspersed. The PBM group (standard physical therapy combined with active PBM). Participants will apply PBM at home daily for 10 minutes using a device containing 318 light-emitting diodes (LEDs), with 159 LEDs at 660 nm (28.5 mW; 12 J/cm2; 17 J per LED) and 159 LEDs at 850 nm (23 mW; 10 J/cm2; 14 J per LED). PBM and physical therapy sessions (30 minutes, twice a week) will be conducted over 12 weeks.

Group Type EXPERIMENTAL

Physiotherapy

Intervention Type PROCEDURE

All participants will be treated with the standardized physiotherapy protocol suggested by Ratajczak et al. 2019. To receive physiotherapy treatment, participants will need to attend a 30-minute session, twice a week, for 12 weeks.

Photobiomodulation

Intervention Type DEVICE

The PBM will be applied with LED devices in the form of a shoulder brace. The applications will occur every day starting 24 hours after the surgical procedure. The shoulder brace from the brand Cosmedical (Mauá, SP, Brazil) contains 70 red LEDs and 70 infrared LEDs. The area corresponding to the fixation plate will not be irradiated (no LEDs will be placed). PBM will be applied every day for 10 minutes using a device containing 318 light-emitting diodes (LEDs), including 159 LEDs at 660 nm (28.5 mW; 12 J/cm2 to 17 J) and 159 LEDs at 850 nm (23 mW; 10 J/cm2 to 14 J).

Control Group

In the control group (standard physical therapy combined with simulated PBM), participants will receive an identical device to the active one, but only the light from the activation plug and the sound will be triggered when they press the button, while the internal LEDs will remain off.

Group Type SHAM_COMPARATOR

Physiotherapy

Intervention Type PROCEDURE

All participants will be treated with the standardized physiotherapy protocol suggested by Ratajczak et al. 2019. To receive physiotherapy treatment, participants will need to attend a 30-minute session, twice a week, for 12 weeks.

Simulation of photobiomodulation

Intervention Type DEVICE

The simulation of PBM will use the same LED devices in the form of a shoulder brace but without active light. It will be applied following the same regimen of the Photobiomodulation group.

Interventions

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Physiotherapy

All participants will be treated with the standardized physiotherapy protocol suggested by Ratajczak et al. 2019. To receive physiotherapy treatment, participants will need to attend a 30-minute session, twice a week, for 12 weeks.

Intervention Type PROCEDURE

Photobiomodulation

The PBM will be applied with LED devices in the form of a shoulder brace. The applications will occur every day starting 24 hours after the surgical procedure. The shoulder brace from the brand Cosmedical (Mauá, SP, Brazil) contains 70 red LEDs and 70 infrared LEDs. The area corresponding to the fixation plate will not be irradiated (no LEDs will be placed). PBM will be applied every day for 10 minutes using a device containing 318 light-emitting diodes (LEDs), including 159 LEDs at 660 nm (28.5 mW; 12 J/cm2 to 17 J) and 159 LEDs at 850 nm (23 mW; 10 J/cm2 to 14 J).

Intervention Type DEVICE

Simulation of photobiomodulation

The simulation of PBM will use the same LED devices in the form of a shoulder brace but without active light. It will be applied following the same regimen of the Photobiomodulation group.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

Individuals aged between 18 and 65 years, of both genders, with proximal humerus fractures classified as:

Neer group III Neer group IV Neer group V AO/OTA subgroups A2 and A3 AO/OTA group B AO/OTA group C (only for patients under 55 years of age)

Exclusion Criteria

Individuals with pre-existing injuries or sequelae in the shoulder and shoulder girdle or motor deficits due to central or peripheral neurological injuries; Individuals with pathological fractures; Individuals who develop postoperative infection or implant loosening; Individuals with ipsilateral fractures in other regions of the limb; Individuals with neurovascular injuries causing sensory deficits at the injury site; Individuals with local or systemic conditions contraindicating surgical intervention or complicating postoperative recovery; Individuals with a history of photosensitivity; Individuals with neurological or psychiatric disorders; Individuals with proliferative or infectious skin lesions in the shoulder region receive LED light; Individuals who used anti-inflammatory drugs within five days before the trauma; Pregnant women; Individuals with surgical complications such as neurological or vascular injuries or fracture line extension during surgery will not meet the desired evolution pattern.

Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes