Comparing two types of nerve blocks for wrist fracture treatment

Brachial Plexus Nerve Block Versus Haematoma Block for Closed Reduction of Distal Radius Fracture in Adults - The BLOCK Trial. A Multicentre Randomised Controlled Trial.

Phase 4 Interventional Nordsjaellands Hospital · NCT06678438

This study tests which type of anesthesia works better for pain relief in adults getting treatment for wrist fractures without surgery.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment1716 (estimated)
Ages18 Years and up
SexAll
SponsorNordsjaellands Hospital Academic / other
Locations1 site (Hillerød, Capital Region)
Trial IDNCT06678438 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates the effectiveness and safety of a brachial plexus nerve block compared to standard haematoma block anesthesia for adults undergoing closed reduction of distal radius fractures. Participants will receive one of the two types of anesthesia to facilitate the realignment of fractured bone fragments without surgical intervention. The study aims to determine which method provides better pain relief and overall outcomes during the procedure.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 and older with a distal radius fracture requiring closed reduction.

Not a fit: Patients with fractures that require surgical intervention or have contraindications to the trial medications may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved pain management and recovery for patients with wrist fractures.

How similar studies have performed: Other studies have shown promising results with nerve blocks for similar procedures, indicating potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adults (age ≥ 18 years) with a distal radius fracture in need of closed reduction

Exclusion Criteria:

* Patients who would never qualify for surgery according to local guidelines
* Lack of informed consent
* No Danish Central Person Register (CPR) number
* Allergies to the trial medication
* Distal radius fracture initially deemed to require surgery regardless of the outcome of the closed reduction
* Open fractures (fracture-related wound requiring sutures)
* Other fractures on the same extremity ((NOT including distal ulna fracture(s))
* Bilateral distal radius fractures both requiring closed reduction
* Concomitant medical or surgical condition taking priority over the closed reduction of the distal radius fracture.

Where this trial is running

Hillerød, Capital Region

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Distal Radius FracturesFracture DislocationFracture Dislocation of Upper Limb JointColles' FractureClosed Reduction of Fracture and Application of Plaster CastLidocaineLocal anaesthesiaRegional anaesthesia
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.