Evaluation of 3D printed collars in hip and knee prostheses

Radiological Evaluation of 3D Printed Porous Collars in Resection Prostheses Hip and Knee: Pilot Study.

Observational Regina Elena Cancer Institute · NCT06180525

This study is testing whether 3D printed collars used in hip and knee replacements can help the implants stay stable and prevent bone loss after surgery.

Quick facts

Study typeObservational
Enrollment30 (estimated)
Ages18 Years and up
SexAll
SponsorRegina Elena Cancer Institute Academic / other
Locations1 site (Rome)
Trial IDNCT06180525 on ClinicalTrials.gov

What this trial studies

This observational pilot study aims to assess the osseointegration of 3D printed porous collars used in hip and knee resection prostheses. It involves a multicenter approach, evaluating both retrospective and prospective patient data to determine the effectiveness of these collars in preventing diaphyseal osteolysis and improving implant stability. Patients undergoing surgery with these collars will be monitored for at least one year post-operation to gather clinical and radiological data.

Who should consider this trial

Good fit: Ideal candidates include adults over 18 years undergoing hip and knee resection surgeries with 3D printed porous collars.

Not a fit: Patients who are lost to follow-up or lack the necessary clinical documentation will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved fixation and longevity of hip and knee prostheses, enhancing patient outcomes.

How similar studies have performed: While this approach is innovative, similar studies evaluating 3D printed implants have shown promising results in other contexts.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* age \> 18 years at the time of surgery.
* patients undergoing hip and knee resection prosthesis surgery with the use of collars porous 3D printed.
* date of intervention: starting from the regular entry into use of 3D printed porous collars at the reference center.
* Patients operated on for primary tumor outcomes.
* Patients operated on for infection.
* Patients operated for revisions with severe loss of bone substance.
* Patients capable of giving informed consent and obtaining written informed consent (prospective part/patients in follow-up).

Exclusion Criteria:

* Patients lost to follow-up and/or for whom radiographic and clinical documentation is not available corresponding to the post-operative moment and the clinical follow-up visit (6 months and 1 years).

Where this trial is running

Rome

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 Bone TumorRadiological evaluationClinical evaluation
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.