The FINOF - Femoral nerve-block Intervention in Neck Of Femur fracture study

ISRCTN ISRCTN92946117
DOI https://doi.org/10.1186/ISRCTN92946117
Clinical Trials Information System (CTIS) 2010-023871-25
Protocol serial number 10929
Sponsor Nottingham University Hospitals NHS Trust (UK)
Funder National Institute of Health Research (NIHR) (UK) - Research for Patient Benefit (RfPB)
Submission date
25/10/2012
Registration date
26/10/2012
Last edited
26/11/2018
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Injury, Occupational Diseases, Poisoning
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
Hip fracture is one of the most serious injuries that occur in older people. These fractures are very painful and traditionally require potent analgesia (painkillers), which are effective but have side effects including nausea, vomiting, constipation and confusion. The patient may then refuse treatment and remain in pain, or in some cases remain pain-free if they lie in bed, but struggle when walking. Techniques which directly involve numbing the nerves around the hip have been proposed as an alternative and practical method of reducing pain when moving and at rest. However, no study has evaluated numbing of the main nerve in the leg (called femoral nerve block), its effects on overall pain control, and its acceptability to staff and patients compared with standard analgesia. The aim of this study is to find out whether femoral nerve block controls pain more effectively compared to standard analgesia.

Who can participate?
Patients aged 70 and over with an acute hip fracture.

What does the study involve?
Participants are randomly allocated to be treated with either a femoral nerve block or standard analgesia.

What are the possible benefits and risks of participating?
We expect that femoral nerve block will result in fewer side effects, earlier recovery, shorter length of stay in hospital and improved quality of life for patients suffering with an acute hip fracture. The most commonly reported side effects of the drugs used for the femoral nerve block are: low blood pressure, nausea, anaemia, vomiting, dizziness, headache, fever, procedural pain, back pain, and ‘pins and needles’.

Where is the study run from?
Queens Medical Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK.

When is the study starting and how long is it expected to run for?
January 2012 to December 2012.

Who is funding the study?
Nottingham University Hospitals NHS Trust (UK).

Who is the main contact?
Prof. Opinder Sahota
opinder.sahota@nuh.nhs.uk

Contact information

Dr Opinder Sahota
Scientific

Queens Medical Centre
Derby Road
Nottingham
NG7 2UH
United Kingdom

Email opinder.sahota@nuh.nhs.uk

Study information

Primary study designInterventional
Study designRandomised controlled study
Secondary study designRandomised controlled trial
Study type Participant information sheet
Scientific titleThe FINOF - Femoral nerve-block Intervention in Neck Of Femur fracture study
Study acronymFINOF
Study objectivesHip fracture is one of the most serious injuries that occur in older people. These fractures are very painful and traditionally require potent opioid/opioid related analgesia, which although effective, has undesired adverse events.

Common side-effects include nausea, vomiting, constipation, and more infrequently, but importantly, delirium. Patient may then refuse treatment and remain in pain or in some cases find if they lie in bed, remain pain-free, but struggle during ambulation. This leads to further complications, impaired rehabilitation and prolonged hospital stay.

Techniques which directly involve numbing the nerves around the hip, have been proposed as an alternative and practical method of alleviating both rest and dynamic pain (important when patients are being transferred or ambulating). However no study has evaluated numbing of the main nerve in the leg (femoral nerve) and the effects on overall pain control, rehabilitation and issues of compliance, acceptability to staff / patients compared to standard analgesic regimes.

We plan to undertake a 12 month randomised controlled study of 150 elderly patients admitted with an acute hip fracture. Subjects on admission, following informed consent will be randomly allocated to a nerve block, followed by a continuous nerve block infusion or standard analgesic care.

We envisage nerve block analgesia compared to conventional analgesia will result in fewer drug related adverse events, earlier recovery, shorter length of stay in hospital and overall, improved quality of life for patients suffering with an acute hip fracture.

Acceptability and implementation will be measured by semi-structured interviews with both staff and patients focusing around pain (patient group) and ease of use (staff group) which will help the implementation of these findings across the country.

More details can be found at: http://public.ukcrn.org.uk/Search/StudyDetail.aspx?StudyID=10929
Ethics approval(s)Nottingham Research Ethics Committee 2, 28/01/2011, ref: 10/H0408/113
Health condition(s) or problem(s) studiedHip fracture
Intervention1. Standard analgesic care
2. Femoral nerve block followed by insertion of a femoral catheter and continous femoral nerve block
Intervention typeOther
Primary outcome measure(s)

1. Cumulative dynamic pain score
2. Cumulative ambulation score

Measured from day 1 to day 3 post operatively

Key secondary outcome measure(s)

1. Cumulative dynamic pain score preoperatively ( at 30 mins, 60 mins, 12 hours following the initial femoral nerve block)
2. Cumulative side effects (nausea, vomiting, constipation, delirium) (from admission to day three post-operatively)
3. Cumulative calorific and protein intake (from admission to day 3 post-operatively)
4. Health related quality of life, measured using the EUROQOL EQ-5D (14) informing a cost effectiveness analysis
5. Hospital length of stay
6. Rehabilitation outcome, measured by New Mobility Score
7. Participant and staff experience (qualitative study)

Completion date31/12/2012

Eligibility

Participant type(s)Patient
Age groupAdult
SexAll
Target sample size at registration150
Key inclusion criteria1. Aged 70 years and over
2. Resident in their own home or warden aided flat
3. Patients who are cognitively intact [as defined by a score of seven or more on the Abbreviated 10 point Mental Test Score (AMTS)
4. A prior fracture New Mobility Score of 3 or more (indicating independent indoor ambulation)
Key exclusion criteria1. Prefracture hospitalisation
2. Contraindications to femoral nerve block analgesia
3. Regular prefracture opioid or glucocorticoid therapy
4. Alcohol or substance abuse
5. Morphine intolerance, and postoperative surgical restrictions for ambulation
Date of first enrolment02/01/2012
Date of final enrolment31/12/2012

Locations

Countries of recruitment

  • United Kingdom
  • England

Study participating centre

Queens Medical Centre
Nottingham
NG7 2UH
United Kingdom

Results and Publications

Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 10/04/2018 Yes No
Protocol article protocol 24/05/2014 Yes No
HRA research summary 28/06/2023 No No
Participant information sheet Participant information sheet 11/11/2025 11/11/2025 No Yes

Editorial Notes

26/11/2018: Publication reference added.