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Completed

NCT Number: NCT02817269

Referred Pain Patterns Infraspinatus Muscle

The first aim of the study will be to identify the most common ReP pattern and compare its coincidence with that described by Travell and Simons. Second, the study aim will be to verify whether there are any significant differences by sex and types of technique used in regard to the ReP pattern of TrP 2 of the infraspinatus muscle, an area described as more sensitive.Finally, the third aim of the study will be to determine whether deep dry needling will evoke the LTR and ReP more easily than manual palpation.

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Key information

Conditions

Shoulder Pain Arthralgia Joint Diseases Musculoskeletal Diseases Neurologic Manifestations Pain Pain, Referred Pathological Conditions, Signs and Symptoms Signs and Symptoms

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

About this study

Patients will be recruited from a university's employee and student population by advertising at the university. Patients with shoulder complaints (described as pain felt in the shoulder or upper arm) will be randomly assigned to either an manual palpation or deep dry needling group. Participants will be randomly divided into 2 groups, a deep dry needling group and manual palpation group. Visual analogue scale (VAS), referred pain (ReP) pattern and features of referred pain of the infraspinatus muscle will be all assessed post-technique.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Aged between 18 and 65 years.
  • To remain seated or in front of data visualization screens (tablets, computers or smartphones) for at least 4 hours a day.
  • Shoulder complaints in the last six weeks.

Exclusion criteria

  • Patients with evidence of serious medical illness.
  • Cognitive impairment.
  • Psychosocial disorders.
  • Bilateral affectation of shoulder pain.
  • Pregnancy.

Treatment and study plan

Manual palpation

Other

The manual palpation level will kept constant by applying enough digital pressure to cause the finger nail bed to blanch. When the nail will be turn pale, the amount of pressure will be measured at approximately 3 4kg/cm2 and will be maintained for 5-10 seconds to evoke referred pain. A manual palpation referred pain will be present if the pain radiated far enough for the patient to feel more than just a local pain.

Deep Dry Needling

Other

Intramuscular needling will be carried out via deep dry needling into myofascial trigger point (MTrP) area without the introduction any substances. The aim is to elicit a local twitch response upon inserting the needle into the MTrP area and perform a neurological stimulation (by rotating the needle 360 degrees) to more easily evoke referred pain, holding for 10 seconds and then extracting the needle gently. The procedure will be followed by one minute of haemostatic compression.

Primary outcomes

  1. Mapping of Referred Pain Pattern

    Time frame: One month

    The participants from both groups will ask to report whether ReP is evoked and to describe the ReP pattern using an anatomical map of the upper half of the human body divided into eighteen areas. Nine areas corresponded to the anterior part of the body and the other nine to the posterior part of the body.

Secondary outcomes

  1. Prevalence active trigger point

    Time frame: One month

    Active trigger point is considered: Soreness taut band and familiar pain.

  2. Evocation of Local Twitch Response

    Time frame: One month

    These were assigned a numerical value of 0 (yes) or 1 (no) for better statistical handling of the data.

  3. Subjective pain intensity: Visual Analogue Scale (VAS)

    Time frame: One month

    The VAS for pain measures the amount of pain experienced by a subject on a continuum from 0 to 10, with 0 being no pain and 10 maximum pain.

Sponsors and collaborators

Lead sponsor

Universidad Miguel Hernandez de Elche

Other

Registry information

Official study title

Referred Pain Patterns in Trigger Point 2 of the Infraspinatus Muscle in Patients With Shoulder Pain

Important dates

Study start
2016
Primary completion
2016
Study completion
2016
First posted
Jun 29, 2016
Registry last updated
Oct 28, 2016

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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