New prosthesis for patients with trans-femoral amputations

Pilot Study of New Prosthesis for Trans-femoral Amputated Patients Clinical Study Protocol

Not applicable Interventional Ente Ospedaliero Cantonale, Bellinzona · NCT03445481

This study is testing a new type of leg prosthesis for people with above-the-knee amputations to see if it can reduce pain and improve comfort compared to regular prosthetics.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment5 (estimated)
Ages18 Years to 75 Years
SexAll
SponsorEnte Ospedaliero Cantonale, Bellinzona Academic / other
Locations1 site (Lugano)
Trial IDNCT03445481 on ClinicalTrials.gov

What this trial studies

This clinical pilot study aims to evaluate a newly developed femoral prosthesis for patients who have undergone trans-femoral amputation and are experiencing pain and discomfort with conventional socket prostheses. Participants will undergo a surgical procedure to implant the Medacta prosthesis, which involves preparing the femoral bone and securing the prosthesis with a blocking screw. The study will assess the effectiveness of this new prosthesis in improving patient comfort and quality of life compared to existing options.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 to 75 with trans-femoral amputations lasting at least two years who suffer from pain and discomfort with their current prosthesis.

Not a fit: Patients with trans-femoral amputations due to infection or those with certain medical conditions such as metabolic diseases or hip arthritis may not benefit from this study.

Why it matters

Potential benefit: If successful, this new prosthesis could significantly reduce pain and improve the quality of life for trans-femoral amputees.

How similar studies have performed: While this approach is innovative, similar studies have shown promise in improving prosthetic outcomes for amputees.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age \>18 and \<75 years
* Patients with Trans-femoral Amputations since at least 2 years and suffering from pain and discomfort with the current standard socket prosthesis, i.e., with a baseline VAS score for pain between 3 and 10 or a health-related quality of life (Eq-5D) score \< 60 or an SF-36 result below the 50th percentile
* Amputation due to:

  1. Trauma
  2. Oncologic disease
* Written informed consent

Exclusion Criteria:

* Trans-femoral amputation due to infection
* Patients affected by

  1. metabolic disease
  2. neurologic degenerative disease
  3. vascular disease proximal to the amputation
  4. body weight \>100 kg
  5. Hip arthritis of the amputated limb

Where this trial is running

Lugano

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Trans-femoral Amputated Patients
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.