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[The influence of microwave monochromatic radiation on bone fracture union in rabbits].

Chirurgia narzadow ruchu i ortopedia polska · 1992 · Benefit · Low evidence

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BenefitLow evidencePaper 6290

In rabbits, 53.57 GHz microwave radiation at 10 mW/cm2 applied to the occipital area for 1 hour daily over 2 weeks was associated with a favourable effect on radial bone fracture union compared with controls, particularly during the first 14 days after osteot…

Study snapshot

PublicationChirurgia narzadow ruchu i ortopedia polska · 1992
Study typeanimal
Reported directionBenefit
Evidence ratingLow

Abstract

The influence of 53.57 GHz microwave radiation of 10mW/cm2 power density on fresh radial bone fracture in 16 rabbits has been investigated. After osteotomy, the occipital area was irradiated one hour daily during two weeks. The development of bony union in experimental and control group (12 rabbits) were compared on the basis of radiographic and physical assessments on the 7-th, 14-th, 21-st and 28-th day after osteotomy. Favourable effect of microwave radiation on bone union was found, especially in the first 14 days after osteotomy. An intense periosteal reaction accompanied the healing process in experimental animals. Biochemical and morphological blood tests run simultaneously were standard.

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AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeanimal
Effect directionbenefit
PopulationRabbits with fresh radial bone fracture after osteotomy
Sample size16
ExposuremmWave · 53570 MHz · 1 hour daily for 2 weeks
Evidence strengthLowConfidence: 74% · Peer reviewed: yes

Main findings

In rabbits, 53.57 GHz microwave radiation at 10 mW/cm2 applied to the occipital area for 1 hour daily over 2 weeks was associated with a favourable effect on radial bone fracture union compared with controls, particularly during the first 14 days after osteotomy. Experimental animals showed an intense periosteal reaction; blood biochemical and morphological tests were reported as standard.

Outcomes measured

  • Bone fracture union/healing (radiographic assessment)
  • Bone fracture union/healing (physical assessment)
  • Periosteal reaction
  • Blood biochemical tests
  • Blood morphological tests

Limitations

  • No details provided on randomization or blinding
  • Exposure applied to occipital area rather than directly to fracture site (mechanism unclear from abstract)
  • Small sample size and unclear allocation between experimental and control groups beyond noting 12 controls
  • No quantitative results or statistical analyses reported in the abstract
View raw extracted JSON
{
  "study_type": "animal",
  "exposure": {
    "band": "mmWave",
    "source": null,
    "frequency_mhz": 53570,
    "sar_wkg": null,
    "duration": "1 hour daily for 2 weeks"
  },
  "population": "Rabbits with fresh radial bone fracture after osteotomy",
  "sample_size": 16,
  "outcomes": [
    "Bone fracture union/healing (radiographic assessment)",
    "Bone fracture union/healing (physical assessment)",
    "Periosteal reaction",
    "Blood biochemical tests",
    "Blood morphological tests"
  ],
  "main_findings": "In rabbits, 53.57 GHz microwave radiation at 10 mW/cm2 applied to the occipital area for 1 hour daily over 2 weeks was associated with a favourable effect on radial bone fracture union compared with controls, particularly during the first 14 days after osteotomy. Experimental animals showed an intense periosteal reaction; blood biochemical and morphological tests were reported as standard.",
  "effect_direction": "benefit",
  "limitations": [
    "No details provided on randomization or blinding",
    "Exposure applied to occipital area rather than directly to fracture site (mechanism unclear from abstract)",
    "Small sample size and unclear allocation between experimental and control groups beyond noting 12 controls",
    "No quantitative results or statistical analyses reported in the abstract"
  ],
  "evidence_strength": "low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "millimeter wave",
    "microwave radiation",
    "53.57 GHz",
    "10 mW/cm2",
    "rabbit",
    "bone fracture",
    "osteotomy",
    "fracture healing",
    "periosteal reaction"
  ],
  "suggested_hubs": []
}
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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: Not supplied
PubMed: 7555283

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