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Completed

NCT Number: NCT02035774

A Novel Selective Block of the Suprascapular Nerve

Patients who receive the lateral and sagittal infraclavicular block (LSIB) tend to supinate their hand and forearm which may hamper optimal positioning for surgery of the dorsal side of the hand. The investigators think that this supination is caused by lateral rotation in the shoulder. The main lateral rotator of the shoulder is the infraspinatus muscle, which is innervated by the suprascapular nerve (SSN).The investigators hypothesized that optimal positioning of the hand for surgery on the dorsal side of the hand may be achieved by performing a SSN block (SSNB) in addition to the LSIB.

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Key information

Conditions

Ligament Injury Fracture Fractures, Bone Wounds and Injuries

Age range

18 year–70 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Primary location

University Hospital of North Norway

Tromsø, Troms, 9038, Norway

About this study

According to the hypothesis the investigators will perform a double blind , placebo controlled study to answer the research question above.

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • Patients with American Society of Anesthesiologists physical status (ASA) I- III
  • age between 18 and 70 years
  • body mass index between 20 and 36 kg/m2 scheduled for elective hand surgery.

Exclusion criteria

We will measure the angle between wrist and horizontal plane while the patient is supine and the extended arm 75° abducted.

  • Patient who are not able to pronate the hand ≤15° before block performance, will be excluded from the study.
  • Patients will also be excluded if they are pregnant, have contraindications to regional anesthesia, coagulation disorder, allergy to local anesthetics (LA), atrioventricular block, peripheral neuropathy or drug-treated diabetes.
  • Patients using other anticoagulation drugs than acetylsalicylic acids or dipyridamol will be excluded.

Treatment and study plan

LSIB + SSNB

Procedure

Patients will receive LSIB (31 ml ropivacaine 7.5 mg/ml)+ SSNB (4 ml Ropivacaine 5 mg/ml) or LSIB (31 ml ropivacaine 7.5 mg/ml)+ SSNB (4 ml placebo, saline)

Primary outcomes

  1. Wrist angle

    Time frame: 30 minutes

    The investigators will assess the wrist angle 30 minutes after the two blocks (LSIB + SSNB)

Secondary outcomes

  1. Satisfaction score

    Time frame: 3 hours

    The investigators will ask the surgeons about his/her satisfaction with the hand position during surgery.

Sponsors and collaborators

Lead sponsor

University Hospital of North Norway

Other

Collaborators

  • University of Tromso

Registry information

Important dates

Study start
2014
Primary completion
2014
Study completion
2014
First posted
Jan 14, 2014
Registry last updated
Jun 17, 2014

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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