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Knee Surgery, Sports Traumatology, Arthroscopy

, Volume 26, Issue 4, pp 1223–1229 | Cite as

Biophysical stimulation improves clinical results of matrix-assisted autologous chondrocyte implantation in the treatment of chondral lesions of the knee

  • Marco Collarile
  • Andrea Sambri
  • Giada Lullini
  • Matteo Cadossi
  • Claudio Zorzi
Knee
  • 325 Downloads

Abstract

Purpose

The purpose of the present study was to evaluate the effects of pulsed electromagnetic fields (PEMFs) on clinical outcome in patients who underwent arthroscopic matrix-assisted autologous chondrocyte implantation (MACI) for chondral lesions of the knee.

Methods

Thirty patients affected by grade III and IV International Cartilage Repair Society chondral lesions of the knee underwent MACI. After surgery, patients were randomly assigned to either experimental group (PEMFs 4 h per day for 60 days) or control group . Clinical outcome was evaluated through International Knee Documentation Committee (IKDC) subjective knee evaluation form, Visual Analog Scale, Short Form-36 (SF-36) and EuroQoL before surgery and 1, 2, 6, and 60 months postoperative.

Results

Mean size of chondral lesion was 2.4 ± 0.6 cm2 in the PEMFs group and 2.5 ± 0.5 cm2 in the control one. No differences were found between groups at baseline. IKDC score increased in both groups till 6 months, but afterward improvement was observed only in the experimental group with a significant difference between groups at 60 months (p = 0.001). A significant difference between groups was recorded at 60 months for SF-36 (p = 0.006) and EuroQol (p = 0.020). A significant pain reduction was observed in the experimental group at 1-, 2- and 60-month follow-up.

Conclusion

Biophysical stimulation with PEMFs improves clinical outcome after arthroscopic MACI for chondral lesions of the knee in the short- and long-term follow-up. Biophysical stimulation should be considered as an effective tool in order to ameliorate clinical results of regenerative medicine. The use of PEMFs represents an innovative therapeutic approach for the survival of cartilage-engineered constructs and consequently the success of orthopaedic surgery.

Level of evidence

II.

Keywords

Osteochondral lesions Pulsed electromagnetic fields Autologous chondrocyte transplantation Regenerative medicine 

Notes

Compliance with ethical standards

Conflict of interest

Dr. Matteo Cadossi owns 10% of IGEA SpA shares, the manufacturer of devices used in the present study. All other authors declare not to have any conflict of interest.

Funding

There was not outside funding or grants received that assisted in this study.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Informed consent

Informed consent was obtained from all individuals included in the study.

Author contribution

MC and CZ carried out data collection; AS and GL performed the statistical analysis. MC, GL and CZ conceived of the study, and participated in its design and coordination and helped to draft the manuscript. All authors read and approved the final manuscript.

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Copyright information

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

Authors and Affiliations

  1. 1.Ospedale Sacro Cuore Don CalabriaNegrarItaly
  2. 2.Istituto Ortopedico RizzoliBolognaItaly

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