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Hip FracturesNCT03609645

Optimization of Analgesia for Hip Fracture Patients

A study testing Fascia iliaca block and Femoral articular branches block(FAB) in people with Hip Fractures, run by University Health Network, Toronto at 1 site in Canada.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Hip Fracture is a common orthopedic emergency in elderly people, which causes moderate to severe pain. Until now, different methods of pain treatment have been used, including pain-killer medication, which given in to the vein, and a nerve block.. Read more about this study

Who is it for?
Ages 60 years and older
Conditions the study is for
Hip Fractures
What is being tested?
Fascia iliaca block and Femoral articular branches block(FAB)
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
1 siteCanada
Study dates
19 Feb 2019to Jan 2020
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 60 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • ASA Physical Status I-III
  • 60 years old or older
  • BMI 18-40
  • Scheduled for hip fracture surgical fixation

Who cannot join

  • Bilateral hip fracture
  • Lack of mental ability to provide informed consent
  • Pre-existing neuropathic pain or sensory disorders of the surgical limb
  • Contraindication to regional anesthesia (Intolerance to the study drugs, bleeding diathesis, coagulopathy, malignancy or infection at the site of the block)
  • Chronic opioid use defined as >30 mg of daily oral morphine equivalents

Trial locations and contacts

1 site in 1 country.

Canada1 site, 1 recruiting
  • Toronto Western Hospital

    Toronto, Ontario, M5T 2S8

    Zhi-bin Wang, 9052323369

    Recruiting

Other trials in Canada

About this study

Official title: Optimization of Analgesia for Hip Fracture: Femoral and Obturator Articular Branch Block vs. Fascia Iliaca Block. A Double-blind, Randomized- Controlled Trial.

Hip Fracture is a common orthopedic emergency in elderly people, which causes moderate to severe pain. Until now, different methods of pain treatment have been used, including pain-killer medication, which given in to the vein, and a nerve block.. A nerve block is the defined as injection of a freezing/numbing medication (local anesthetic) around the nerve area in order to stop pain.

Painkiller medications by themselves are not enough to stop pain, especially the pain that start with movement.

Read more

At the Toronto Western hospital, patients with hip fracture will generally receive a fascia iliac block (FIB) within 24 hours of hospital admission as a standard of care.

Fascia iliaca block is a nerve block done by injecting local anestheticat the level of the groin. This done to provide pain relief and is done either in the emergency room or in the inpatient area.

Studies have shown that nerves supplying other areas in the hip may be blocked to relive hip pain fracture.

Additional to this method, there is a newer type of nerve block, called the femoral articular branch block (FAB) that aim to block the nerves supplying the hip joint.

This new block has been described based on better understanding of the anatomy of the nerves that control hip pain. This block consists on an injection in the groin at a similar location as the Fascia iliaca block except that the needle has to go slightly deeper (by a few centimeters) to reach a better target.

Based on the current understanding on anatomy it is possible that this new technique may provide better pain control than a Fascia Iliaca Block.

The purpose of the study is to investigate the degree of pain relief achieved by the two different nerve block techniques: 1) Fascia iliaca block (FIB) and 2) Femoral and AON articular branches block (FAB).

Read the detailed description

The anterior hip joint is innervated by articular branches from the femoral nerve (FN), the obturator nerve (ON) and the accessory obturator nerve (AON). The posterior and inferior parts of the hip joint capsule are innervated by the sacral plexus via a) the sciatic nerve, b) the sciatic branch to the quadratus femoris muscle and c) the superior gluteal nerves. Gerhardt et al showed that nociceptive fibers are predominantly present in the anterior and superolateral parts of the joint capsule, suggesting that the femoral and obturator nerves should be the most important nerves to target for hip analgesia.

The 3-in-1 block and FIB are currently used to provide hip analgesia. However, recent MRI imaging studies have shown that proximal local anesthetic spread was not consistent following a 3-in-1 block and did not consistently cover the obturator nerve. Similar findings were reported for the FIB.

A recent study on the innervation of the anterior hip revealed the relevant landmarks for the articular branches of the FN, AON and ON. This study found that high branches of femoral nerve, which were given off superior to the inguinal ligament, play a greater role in the anterior hip innervation than previously reported. These high articular branches of the FN and AON are consistently found between anterior inferior iliac spine (AIIS) and iliopubic eminence (IPE). With the help of ultrasound imaging, these landmarks can be identifiable and it is possible to target them directly in order to provide hip analgesia.

These recent data suggests that blocking these branches as they course deep to the iliopsoas muscle should result in superior hip joint analgesia compared to a FIB since the local anesthetic spread from a FIB is neither proximal nor deep enough to cover these articular branches consistently. Real-time ultrasound can help identify these proximal FN and AON branches using the anterior inferior iliac spine and the iliopubic eminence as landmarks.

The overall aim of this study is to determine in a prospective, randomized, double blind manner, the analgesic profile associated with two different regional anesthetic techniques: (1) FIB and (2) Femoral articular branches (FAB) block.

Conditions
Hip Fractures
Being tested
Fascia iliaca block, Femoral articular branches block(FAB)
Keywords
Fascia Iliaca Block, Femoral and Obturator Articular Branch Block
Medical subject headings
Hip Fractures

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Fascia iliaca blockProcedure or surgery

    FIB Placebo Block: 20mL of Normal Saline Active drug: 20mL of 0.25% Bupivacaine with epinephrine (1:400, 000)

    FAB block Placebo Block: 20mL of Normal Saline Active Drug: 20mL of 0.25% Bupivacaine with epinephrine (1:400,000)

  • Femoral articular branches block(FAB)Procedure or surgery

    FIB Placebo Block: 20mL of Normal Saline Active drug: 20mL of 0.25% Bupivacaine with epinephrine (1:400, 000)

    FAB block Placebo Block: 20mL of Normal Saline Active Drug: 20mL of 0.25% Bupivacaine with epinephrine (1:400,000)

Study groups in NCT03609645
Study groupRoleWhat they receive
Fascia iliaca block (FIB)Active comparatorGroup will receive Fascia iliaca block (FIB) with local anesthetic and femoral articular branch block (FAB) with normal saline (Placebo).
Receives: Procedure: Fascia iliaca block
Femoral articular branches block(FAB)ExperimentalGroup will receive Fascia iliaca block (FIB) with normal saline (Placebo) and Femoral AON articular branch block (FAB) with local anesthetic.
Receives: Procedure: Femoral articular branches block(FAB)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Dynamic pain score

    Pain scores will be assessed with an 11-point verbal numeric rating scale (NSR) where 0 is "no pain" and 10 is "the worst pain imaginable" and dynamic pain will be assessed with 15 degrees straight leg raise.

    The 15 degrees straight leg raise is a safe and standardized test to evaluate dynamic pain in hip fracture patients and has been used in a previous study.

    Measured: 60 minutes after the block procedure

Secondary outcomes (4)
  1. Rest pain score

    Pain scores will be assessed with an 11-point verbal numeric rating scale (NSR) where 0 is "no pain" and 10 is "the worst pain imaginable" and dynamic pain will be assessed.

    Measured: 30, 60, 120 and 180 minutes post-block

  2. Dynamic pain score

    Pain scores will be assessed with an 11-point verbal numeric rating scale (NSR) where 0 is "no pain" and 10 is "the worst pain imaginable" and dynamic pain will be assessed with 15 degrees straight leg raise.

    Measured: 30, 120 and 180 minutes post-block

  3. Cumulative systemic opioid consumption

    oral morphine mg equivalents

    Measured: 1 hour, 3 hours and 24 hours after the block procedure

  4. Requirement "rescue" intravenous patient controlled analgesia (IV PCA)

    If oral pain medication and block is not enough patient can get IV PCA.We will be recording requirement of IV PCA anytime in the first 24 hours after the block procedure.

    Measured: within first 24 hours after the block procedure

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted1 Aug 2018
  2. Study start19 Feb 2019
  3. Primary completionSep 2019 (estimated)
  4. Study completionJan 2020 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Other
Allocation
Randomised
Intervention model
Parallel groups
Model description
This is a double-blinded randomized prospective study involving patients with hip fracture who are undergoing surgical fixation.
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
40 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03609645
Sponsor's protocol ID
17-6067
Status last verified
Jul 2018
First submitted
25 Jul 2018
Last updated
19 Mar 2019
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing Fascia iliaca block and Femoral articular branches block(FAB) in people with Hip Fractures, run by University Health Network, Toronto at 1 site in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 19 Mar 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Rongyu Jin (4166035800 ext. 2016, rongyu.jin@uhn.ca), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Dynamic pain score (time frame: 60 minutes after the block procedure). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 Mar 2019; AzTrials last refreshed its copy on 6 Nov 2026.

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