Evaluation of a new implant for lower limb deformity in children

Clinical-MRI Evaluation in Patients Undergoing Subtalar Arthrorisis With Resorbable PLLA Endothesis Implant: Prospective Observational Study at 5 Years of Minimum Follow-up

Observational Istituto Ortopedico Rizzoli · NCT06525532

This study looks at how well a new implant works for correcting lower limb deformities in children aged 8 to 15 who have had the procedure, by reviewing their medical records over five years.

Quick facts

Study typeObservational
Enrollment35 (estimated)
Ages8 Years to 15 Years
SexAll
SponsorIstituto Ortopedico Rizzoli Academic / other
Locations1 site (Bologna)
Trial IDNCT06525532 on ClinicalTrials.gov

What this trial studies

This observational study will analyze cases of subtalar arthrorrhesis using a reabsorbable endorthotic implant made of PLLA, retrieved from the archives of the IRCCS Rizzoli Orthopedic Institute. An electronic database will be created to review the medical records of these patients, focusing on those aged 8 to 15 years who have undergone the procedure. The study will assess the outcomes over a minimum follow-up period of five years without a control group or comparison to other therapeutic procedures.

Who should consider this trial

Good fit: Ideal candidates are children aged 8 to 15 years who have undergone subtalar arthrorrhesis with the specified implant.

Not a fit: Patients with significant prior lower limb trauma, chronic infections, or other specified exclusions will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide valuable insights into the long-term effectiveness of a new implant for treating lower limb deformities in children.

How similar studies have performed: While this approach is specific, similar studies evaluating pediatric orthopedic implants have shown promising results in the past.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age between 8 and 15 years at the time of surgery
* Arthrorrhosis of the subtalar with reabsorbable endorthotic implant in PLLA
* Minimum follow-up of 5 years

Exclusion Criteria:

* Revisions/explantation of the endorthesis device
* Patients with active acute or chronic infections
* Patients with chronic inflammatory joint diseases
* Patients with previous significant trauma of the lower limbs following surgery
* Patients with pre-existing anomalies of ambulatory kinematics (amputations, neuro-muscular diseases, poliomyelitis, hip dysplasias)
* Patients with cognitive deficits
* \- Patients with concomitant neurological pathologies
* Patients suffering from tumor pathology
* Patients with cardiac pacemakers or other prostheses equipped with electronic circuits
* Patients with intracranial metal implants, metal heart valves, vascular clips, ferromagnetic endovascular filters/stents/coils, Swan-Ganz catheters or in any case positioned close to vital anatomical structures
* Patients with orthopedic metal prostheses
* Patients with cochlear implants or fixed hearing aids, lens prostheses with ferromagnetic intra-ocular points, IUD (coil) or splinters made of ferromagnetic material
* Pregnant patients
* Patients with insulin pumps and non-removable contact lenses

Where this trial is running

Bologna

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 Lower Limb Deformityarthrorrhesisreabsorbable endorthotic implantsubtalar jointpediatric joint implant
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.