The present prospective case series study aims to evaluate the long-term results after matrix-induced autologous mesenchymal stem cells (MSCs) implantation alongside Anterior Cruciate Ligament (ACL) reconstruction.

Methods

20 ICRS grade 3 and 4 cartilage lesions (mean size 4.9 cm2) in 20 patients (mean age 29.06 years) were treated with a single-staged procedure involved filling of each defect with autologous culture-expanded AD-MSCs embedded in a trimmed-to-fit biodegradable matrix. The patients were followed at 1st, 3rd and 5th p.o. year using the Knee injury and Osteoarthritis Outcome Score (KOOS) and the International Knee Documentation Committee (IKDC) forms. The patients were divided in 2 groups according to the performed in the same surgery ACL reconstruction. Patients in group A (N=9) had MSCs implantation and ACL reconstruction, and group B (control group) (N=11), had only MSCs implantation. Linear mixed effects models were employed to determine the association of scores in each scale with the group of patients (with or without ACL), time, and their interaction.

Results

On the average, the rate of (linear) improvement from pre-operative to 5th year FU was not statistically significantly different between the two groups regarding all scales except from KOOS ADL (p=.007) and KOOS QoL (p=.017). The rate of improvement in KOOS ADL scale from pre-operative to 5th year FU for patients in group without ACL was higher than that of patients with ACL. The rate of improvement in KOOS QoL scale from pre-operative to 5th year FU for patients in group without ACL was lower than that of patients with ACL. It was also recorded better scores in ACL plus MSCs group in IKDC and KOOS pain scales.

Conclusions

The present study has shown significant improvement for both groups over time. Interestingly, the ACL plus MSCs implantation group A showed relatively better improvement during p.o.time for IKDC score and pain subscale.

Key words: Cartilage Lesions, Mesenchymal Stem Cells, ACL reconstruction

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Anterior Cruciate Ligament Reconstruction Alongside Mesenchymal Stem Cells Implantation In A Single Stage Operation Improves Radiological And Clinical Outcomes In A Long-Term Follow-Up

Anterior Cruciate Ligament Reconstruction Alongside Mesenchymal Stem Cells Implantation In A Single Stage Operation Improves Radiological And Clinical Outcomes In A Long-Term Follow-Up

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Anterior Cruciate Ligament Reconstruction Alongside Mesenchymal Stem Cells Implantation In A Single Stage Operation Improves Radiological And Clinical Outcomes In A Long-Term Follow-Up

Anterior Cruciate Ligament Reconstruction Alongside Mesenchymal Stem Cells Implantation In A Single Stage Operation Improves Radiological And Clinical Outcomes In A Long-Term Follow-Up

Purpose

Methods

Results

Conclusions