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Knee Surgery, Sports Traumatology, Arthroscopy

, Volume 26, Issue 7, pp 2000–2010 | Cite as

Intratendinous adipose-derived stromal vascular fraction (SVF) injection provides a safe, efficacious treatment for Achilles tendinopathy: results of a randomized controlled clinical trial at a 6-month follow-up

  • Federico Giuseppe Usuelli
  • Miriam Grassi
  • Camilla Maccario
  • Marco Vigano’
  • Luciano Lanfranchi
  • Umberto Alfieri Montrasio
  • Laura de Girolamo
Ankle

Abstract

Purpose

Although platelet-rich plasma (PRP) injection has shown controversial results for the treatment of Achilles tendinopathy, it remains the most used biological treatment. Recent findings seem to demonstrate that the stromal vascular fraction (SVF) within adipose tissue may counteract the impaired tendon homeostasis. The aim of this study was to prospectively compare the efficacy of PRP and SVF injection for the treatment of non-insertional Achilles tendinopathy.

Methods

Fourty-four patients were recruited in the study; 23 of them were assigned to the PRP group whereas 21 to the SVF group, treated unilaterally or bilaterally for a total of 28 tendons per group. All patients (age 18–55 years) were clinically assessed pre-operatively and at 15, 30, 60, 120 and 180 days from treatment, using the VAS pain scale, the VISA-A, the AOFAS Ankle-Hindfoot Score and the SF-36 form. The patients were also evaluated by ultrasound and magnetic resonance before treatment and after 4 (US only) and 6 months.

Results

Both treatments allowed for a significant improvement with respect to baseline. Comparing the two groups, VAS, AOFAS and VISA-A scored significantly better at 15 and 30 days in the SVF in comparison to PRP group (p < 0.05). At the following time points the scores were not significantly different between the two groups. No correlation has been found between clinical and radiological findings.

Conclusions

Both PRP and SVF were safe, effective treatments for recalcitrant Achilles tendinopathy. The patients treated with SVF obtained faster results, thus suggesting that such a treatment should be taken into consideration for those patients who require an earlier return to daily activities or sport.

Level of evidence

Randomized Controlled Clinical Trial, Level 1.

Keywords

Achilles tendon Achilles tendinopathy PRP Adipose-derived mesenchymal stem cells Stromal vascular fraction (SVF) 

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Copyright information

© European Society of Sports Traumatology, Knee Surgery, Arthroscopy (ESSKA) 2017

Authors and Affiliations

  • Federico Giuseppe Usuelli
    • 1
  • Miriam Grassi
    • 2
  • Camilla Maccario
    • 1
    • 3
  • Marco Vigano’
    • 4
  • Luciano Lanfranchi
    • 5
  • Umberto Alfieri Montrasio
    • 2
  • Laura de Girolamo
    • 4
  1. 1.CASCO DepartmentIstituto Ortopedico GaleazziMilanoItaly
  2. 2.USPeC, Istituto Ortopedico GaleazziMilanoItaly
  3. 3.Universita’ degli Studi di MilanoMilanoItaly
  4. 4.Orthopaedic Biotechnology LaboratoryIstituto Ortopedico GaleazziMilanoItaly
  5. 5.Plastic Surgery DepartmentIstituto Ortopedico GaleazziMilanoItaly

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