Observational Outcomes: Umbilical Cord Tissue Allografts in Posterior Tibial Tendon Degeneration
Posterior tibial tendon dysfunction (PTTD) is a progressive connective tissue disorder with limited conservative management options and a high rate of surgical referral. This IRB-approved observational cohort study, conducted in collaboration with University Foot & Ankle Institute and Regenative Labs, evaluated the safety profile and patient-reported outcomes associated with the application of cryopreserved Wharton’s Jelly (WJ) umbilical cord tissue (UCT) allografts in patients with confirmed PTTD who had exhausted standard conservative care.
Study Overview
- Design: Retrospective, multi-site observational cohort approved by the Institute of Regenerative and Cellular Medicine (IRCM)
- Participants: 26 patients with moderate-to-severe PTTD (Stages II–IV) who had failed ≥3 months of conservative care
- Intervention: 1 or 2 ultrasound-guided percutaneous applications of a 150 mg Wharton’s Jelly tissue allograft
- Follow-up: 30, 90, and 120 days post-procedure
“This study provides preliminary evidence that umbilical cord tissue allografts may be a safe and effective minimally invasive application for degeneration of the posterior tibial tendon.” — Biomedicines, 2025
Clinical Significance
Patient-reported outcomes were assessed at 30, 90, and 120 days using validated instruments including the Numeric Pain Rating Scale (NPRS) and the Foot Function Index (FFI). Statistically significant improvements were observed in pain and functional scores from baseline to Day 120. No adverse events were reported across the study population.
These findings suggest that the ultrasound-guided percutaneous application of WJ tissue allografts was well-tolerated in this cohort and associated with measurable patient-reported improvement. As with all observational data, results should be interpreted in the context of study design limitations and do not establish causation.
A Step Toward Evidence-Based Care
This publication contributes to the peer-reviewed literature on the homologous use of umbilical cord tissue allografts in musculoskeletal applications. Clinicians are encouraged to evaluate these findings within the broader evidence base and in the context of individual patient presentation, clinical judgment, and applicable standard of care guidelines.