NCT06243549

Brief Summary

The global rise in lower-limb amputations is mainly due to diabetes and vascular complications. Amputations cause serious physical and psycho-social disabilities which impair locomotion and compromise patients quality of life. Biopsychosocial factors such as altered gait parameters, poor prosthetic fit, depression, fear avoidance behaviours and stigma increase the risk of individuals incurring lower back pain; the leading cause of secondary disability amongst persons with lower-limb amputation. Exploring the potential mechanistic pathways of lower back pain development is important to inform timely patient-centred programmes of care. Currently, limited information exists to inform the design of such programmes. Thus, there is a pressing need to understand the bio-behavioural, psychological, and social features of individuals with lower-limb amputation in the presence of lower back pain.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
30

participants targeted

Target at below P25 for all trials

Timeline
5mo left

Started Sep 2023

Typical duration for all trials

Geographic Reach
1 country

2 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress87%
Sep 2023Oct 2026

Study Start

First participant enrolled

September 1, 2023

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

January 25, 2024

Completed
12 days until next milestone

First Posted

Study publicly available on registry

February 6, 2024

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2025

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2026

Expected
Last Updated

March 27, 2025

Status Verified

March 1, 2025

Enrollment Period

2.1 years

First QC Date

January 25, 2024

Last Update Submit

March 24, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • How do gait characteristics and muscle activations influence functional outcomes post-amputation and how do these variables influence the development of lower back pain?

    Monitoring patients gait and muscle activities of the erector spinae, latissimus dorsi, gluteus medius, and sound limb biceps femoris and rectus femoris, during walking at self-selected speed, and how these variables influence lower back pain, assessed through the Roland-Morris Disability Questionnaire (no scale, greater number of statements circled indicates a worse outcome; maximum score of 24), and patient functional outcomes, where the term 'function' refers to the comprehensive overview of each participant's everyday interactions and long-term targets, defined by the participant in terms of person-specific activities and goals.

    12-months

Secondary Outcomes (4)

  • How does the gait of persons with lower-limb loss change over a period of 12-months?

    12-months

  • What is the time-scale for the development of lower back pain post-amputation?

    12-months

  • What is the relationship between lower back pain and other types of pain?

    12-months

  • How many persons with lower-limb amputation develop lower back pain over the 12-month monitoring period?

    12-months

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Recruitment of persons with unilateral TFA and TTA of both vascular and traumatic aetiology will be attempted from the Bristol Centre for Enablement and the Portsmouth Enablement Centre (North Bristol NHS Trust and Portsmouth Hospitals University NHS Trust, respectively).

You may qualify if:

  • Over 18 years old
  • Unilaterally amputated
  • Able to walk on level ground
  • Newly fitted with a prosthetic (0-3-months post-amputation)

You may not qualify if:

  • Balance disorders
  • Patients who lack the capacity to consent for prosthetic use
  • Patients at serious risk of sound foot which limits normal rehabilitation
  • Transfer-in patients
  • Persons with congenital lower-limb amputation

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Bristol Centre for Enablement

Bristol, BS34 5BW, United Kingdom

Location

Portsmouth Enablement Centre

Portsmouth, PO3 6AD, United Kingdom

Location

Related Publications (1)

  • Withey A, Cazzola D, Tabor A, Seminati E. Exploring the associations between the biomechanical and psychological mechanistic pathways of lower back pain development amongst persons with lower-limb amputation: A study protocol. PLoS One. 2025 Feb 6;20(2):e0314523. doi: 10.1371/journal.pone.0314523. eCollection 2025.

MeSH Terms

Conditions

Low Back Pain

Condition Hierarchy (Ancestors)

Back PainPainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

January 25, 2024

First Posted

February 6, 2024

Study Start

September 1, 2023

Primary Completion

October 1, 2025

Study Completion (Estimated)

October 1, 2026

Last Updated

March 27, 2025

Record last verified: 2025-03

Data Sharing

IPD Sharing
Will not share

Locations