NCT04602793

Brief Summary

Lower limb amputation (LLA) commonly affects young and active people who have long life expectancy. It is a major surgery causing many functional deficiencies which can reduce overall health quality and physical condition of the wounded persons and necessitating a multidisciplinary rehabilitation programme. High-frequency ultrasonography (US) is useful in evaluating peripheral nerves because of it has many superiority to other techniques. The advantages of US is; it has high resolution but no ionized radiation. It is possible to make dynamic and real-time imaging. It was showed that US have the same specificity and more sensitivity than magnetic resonance (MR) imaging in evaluating peripheral nerves. The aim of this study is to evaluate the sciatic, tibial and peroneal nerves of traumatic lower-limb amputees with the help of sonography and find the relationship between sonographic values and clinical characteristics.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
33

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Apr 2019

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 1, 2019

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2020

Completed
7 months until next milestone

First Submitted

Initial submission to the registry

October 21, 2020

Completed
5 days until next milestone

First Posted

Study publicly available on registry

October 26, 2020

Completed
Last Updated

October 26, 2020

Status Verified

October 1, 2020

Enrollment Period

1 year

First QC Date

October 21, 2020

Last Update Submit

October 21, 2020

Conditions

Keywords

AmputationProsthesisperipheral nervesultrasonography

Outcome Measures

Primary Outcomes (1)

  • Sciatic nerve (SN), tibial nerve (TN), and common peroneal nerve (CPN) thickness measurements

    Sciatic nerve (SN), tibial nerve (TN), and common peroneal nerve (CPN) thickness and cross sectional area measurements will be performed by using ultrasound.

    through study completion, an average of one and a half months]

Secondary Outcomes (2)

  • Visual analog scale (VAS)

    through study completion, an average of one and a half months

  • Leeds Assessment of Neuropathic Symptoms and Signs (LANSS)

    through study completion, an average of one and a half months

Interventions

ultrasonographyDIAGNOSTIC_TEST

All ultrasonographic examinations were performed by a single physiatrist experienced in musculoskeletal sonography. The full course of the sciatic nerve (SN), tibial nerve (TN), and common peroneal nerve (CPN) was assessed in a craniocaudal direction starting from the subgluteal fold to the popliteal fossa. The probe was placed axially on the nerves (perpendicular to the nerve) and the cross-sectional area (CSA) was measured at the same level proximal to the bifurcation for the SN , and at a point distal to the bifurcation of the SN for the TN and CPN (Figure 2). The values from the normal sides were accepted as controls.

Eligibility Criteria

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

A total of thirty-three participants (age range 18-65) who had lower extremity amputation due to traumatic injury and were followed up in tertiary amputee clinic were included in this cross-sectional trial. All patients had completed stump healing. Patients with any disease affecting the peripheral nerves (eg, diabetes mellitus, infections, metabolic problems, inherited causes, and exposure to toxins) were excluded.

You may qualify if:

  • Patients between the ages of 18-65
  • Patients who have been followed up for at least 3 months with the diagnosis of unilateral transtibial amputation
  • Patients who have been using prostheses for at least 3 months

You may not qualify if:

  • Bilateral amputation
  • Previous history of any trauma/surgical history of the lower extremities (other than amputation)
  • Rheumatic diseases
  • Contracture of the knee and the ankle of the intact limb .Presence of comorbid diseases that may cause peripheral nerve lesions ( e.g diabetis mellitus, using alcohol, thyroid diseases...)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Gaziler PMR, Training and Research Hospital, Department of PMR

Ankara, Çankaya/turkey, 06100, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Amputation, Traumatic

Interventions

Ultrasonography

Condition Hierarchy (Ancestors)

Wounds and Injuries

Intervention Hierarchy (Ancestors)

Diagnostic ImagingDiagnostic Techniques and ProceduresDiagnosis

Study Officials

  • sefa Gümrük Aslan, MD

    Gaziler PMR, Training and Research Hospital, Department of PMR

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CROSSOVER
Time Perspective
PROSPECTIVE
Target Duration
1 Year
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Sonographic Evaluation Of Nerve Thickness In Traumatic Lower-Limb Amputees: a Clinical and Sonographic-controlled Study

Study Record Dates

First Submitted

October 21, 2020

First Posted

October 26, 2020

Study Start

April 1, 2019

Primary Completion

April 1, 2020

Study Completion

April 1, 2020

Last Updated

October 26, 2020

Record last verified: 2020-10

Data Sharing

IPD Sharing
Will not share

Locations