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Forensic-medical Aspects of Lower Limb Prosthetics: An Observational Study

Forensic-medical Aspects of Lower Limb Prosthetics: An Observational Study

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05392907
Acronym
CP-PRO-01-20
Enrollment
50
Registered
2022-05-26
Start date
2020-10-23
Completion date
2021-07-23
Last updated
2025-05-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Amputation

Brief summary

The study investigated the perceived-mobility of patients with unilateral lower limb amputations by means of patient-reported outcome measures (PROMs). Such aspect may play an important role in evaluating the patient impairment and addressing forensic-medical issues. However, to this concern, the use of PROMs has not been extensively investigated yet. Among the validated PROMs, the study assessed self-perceived mobility and quality of life by administering the Trinity Amputation Prosthetic Evaluation Survey (TAPES) and the more recent Prosthetic Mobility Questionnaire (PMQ). The aim of this observational study was to improve the estimation of the physical and psychological impairment caused by the amputation, focusing on the impact of the limb loss on social participation, quality of life and daily living activities.

Interventions

None listed

Sponsors

Istituto Nazionale Assicurazione contro gli Infortuni sul Lavoro
Lead SponsorOTHER

Study design

Observational model
CASE_ONLY
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Subjects aged between 18 and 65 years * Unilateral trans-femural or trans-tibial amputation * Experienced prosthesis users (at least two years) * Subjects that provided written informed consent to study participation and data publication

Exclusion criteria

* Severe comorbidities * Psychological impairment * Pregnancy * Patient not collaborative

Design outcomes

Primary

MeasureTime frameDescription
Questionnaire: Trinity Amputation Prosthesis Experience Scale (TAPES)After recruitment, patient anamnesis is performed by an expert clinician. Then, the TAPES questionnaire is administered. The completion time is about 15 minutesThe questionnaire investigates three aspects of the quality of life of lower limb amputee subjects: 1. psychosocial adjustment: 15 items, 5-point rating scale, score range: 15-75, higher scores indicates greater levels of adjustment. Therefore, higher values represent a better outcome. 2. activity restriction: 12 items, 4-point rating scale, score range: 0-24, higher scores indicates greater activity restriction. Therefore, higher values represent a worse outcome. 3. prosthetic satisfaction: 15 items, 5-point rating scale, score range: 10-50, higher scores indicates greater satisfaction with the prosthesis. Therefore, higher values represent a better outcome. Results of psychosocial adjustment, activity restriction, and prosthetic satisfaction are presented separately.
Score of the Prosthetic Mobility Questionnaire (PMQ)After completion of TAPES questionnaire, PMQ is administered. The completion time is about 3 minutes.The Prosthetic Mobility Questionnaire (PMQ), available in the Italian version, investigates self-perceived mobility through 12 items. Each item score ranges 0-4 for a total score ranging between 0 and 48. The higher the score, the higher the self-perceived level of mobility.

Countries

Italy

Participant flow

Participants by arm

ArmCount
Lower Limb Amputation
Subjects with a unilateral lower limb amputation, even trans-femural or trans-tibial
50
Total50

Baseline characteristics

CharacteristicLower Limb Amputation
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
50 Participants
Age, Continuous50 years
Amputation level (trans-femural)25 participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
50 Participants
Region of Enrollment
Italy
50 participants
Sex: Female, Male
Female
8 Participants
Sex: Female, Male
Male
42 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 50
other
Total, other adverse events
0 / 50
serious
Total, serious adverse events
0 / 50

Outcome results

Primary

Questionnaire: Trinity Amputation Prosthesis Experience Scale (TAPES)

The questionnaire investigates three aspects of the quality of life of lower limb amputee subjects: 1. psychosocial adjustment: 15 items, 5-point rating scale, score range: 15-75, higher scores indicates greater levels of adjustment. Therefore, higher values represent a better outcome. 2. activity restriction: 12 items, 4-point rating scale, score range: 0-24, higher scores indicates greater activity restriction. Therefore, higher values represent a worse outcome. 3. prosthetic satisfaction: 15 items, 5-point rating scale, score range: 10-50, higher scores indicates greater satisfaction with the prosthesis. Therefore, higher values represent a better outcome. Results of psychosocial adjustment, activity restriction, and prosthetic satisfaction are presented separately.

Time frame: After recruitment, patient anamnesis is performed by an expert clinician. Then, the TAPES questionnaire is administered. The completion time is about 15 minutes

ArmMeasureGroupValue (MEDIAN)
Lower Limb AmputationQuestionnaire: Trinity Amputation Prosthesis Experience Scale (TAPES)Psychosocial adjustment57 units on a scale
Lower Limb AmputationQuestionnaire: Trinity Amputation Prosthesis Experience Scale (TAPES)Activity restriction8 units on a scale
Lower Limb AmputationQuestionnaire: Trinity Amputation Prosthesis Experience Scale (TAPES)Prosthetic satisfaction40 units on a scale
Primary

Score of the Prosthetic Mobility Questionnaire (PMQ)

The Prosthetic Mobility Questionnaire (PMQ), available in the Italian version, investigates self-perceived mobility through 12 items. Each item score ranges 0-4 for a total score ranging between 0 and 48. The higher the score, the higher the self-perceived level of mobility.

Time frame: After completion of TAPES questionnaire, PMQ is administered. The completion time is about 3 minutes.

ArmMeasureValue (MEDIAN)
Lower Limb AmputationScore of the Prosthetic Mobility Questionnaire (PMQ)31.5 units on a scale

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026