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Trigger Points of Supraspinatus Muscle: Osteopaths' Palpation Reproductibility and Ultrasound Translation

Not yet recruiting
Conditions
Shoulder Pain
Registration Number
NCT05785650
Lead Sponsor
Institut des Hautes Etudes Osteopathiques de Nantes
Brief Summary

Trigger points (TP) are described as "hard, palpable nodules located within the taut bands of skeletal muscle" (Bardoni, 2022).

The aim of this study is to evaluate the reproductibility of palpation of TP between osteopaths and to compare this perception to ultrasound measures of echogenicity.

Method:

A sample of 61 patients will be included in the study. An osteopath will determine the eligibility of the study. The supraclavicular area will be mark every 2 cm to establish a grid for all evaluations.

First an osteopath will evaluate with palpation the presence of TP at every box of the grid.

A second osteopath will evaluate the same boxes and will be blinded to the result of the first osteopath.

At each step of palpation, a pain assessment will be carried out at each box. Then, the ultrasound technician will evaluate the echogeneicity of every box and will be blinded to the prior results.

The protocol will be approve by a french ethic committee.

Detailed Description

sensitivity and specificity of osteopathic tests will be conducted in comparaison to echograph results (a binary outcomes assessing the presence of an hypoechogenicity).

The reproductibility of osteopaths' tests will be be calculated using Cohen's kappa weighted by the distance between the TPs found.

Finally, the pain reported by patients on areas with a TP defined by the osteopath, and the pain reported by patients on areas without a TP defined by the osteopath will be compared using a student test.

Recruitment & Eligibility

Status
NOT_YET_RECRUITING
Sex
All
Target Recruitment
61
Inclusion Criteria
  • Adults (18 to 50 years old),
  • affiliation to a social security scheme or beneficiary of such a scheme
Exclusion Criteria
  • pregnant and breastfeeding women,
  • adults under guardianship and protected patients.
  • History of integumentary or muscular involvement in the area of interest
  • Allergic reaction
  • wish to stop the study

Study & Design

Study Type
OBSERVATIONAL
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
sensitivity and specificity of osteopathic testsat day 1

to compare osteopath TP detection to ultrasound echogenicity

Secondary Outcome Measures
NameTimeMethod
camparison of pain reported by patient with TP detection by osteopathat day 1

using a student test between pain means in areas with and without TP

Inter examiner reproductibility of TP detectionat day 1

using Cohen's kappa weighted by the distance between the TPs found. Quadratic weighting will be used.

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