scholarly journals Clinical evaluation after matrix-associated autologous chondrocyte transplantation

2021 ◽  
Vol 10 (7) ◽  
pp. 370-379
Author(s):  
Harald Binder ◽  
Lukas Hoffman ◽  
Lukas Zak ◽  
Thomas Tiefenboeck ◽  
Silke Aldrian ◽  
...  
Keyword(s):  
Clinical Outcomes ◽  
Cartilage Regeneration ◽  
International Knee Documentation Committee ◽  
Autologous Chondrocyte Transplantation ◽  
Chondrocyte Transplantation ◽  
Regeneration System ◽  
Tibiofemoral Joint ◽  
Chondrocyte Implantation ◽  
The Mean ◽  
Autologous Chondrocyte

Aims The aim of this retrospective study was to determine if there are differences in short-term clinical outcomes among four different types of matrix-associated autologous chondrocyte transplantation (MACT). Methods A total of 88 patients (mean age 34 years (SD 10.03), mean BMI 25 kg/m2 (SD 3.51)) with full-thickness chondral lesions of the tibiofemoral joint who underwent MACT were included in this study. Clinical examinations were performed preoperatively and 24 months after transplantation. Clinical outcomes were evaluated using the International Knee Documentation Committee (IKDC) Subjective Knee Form, the Brittberg score, the Tegner Activity Scale, and the visual analogue scale (VAS) for pain. The Kruskal-Wallis test by ranks was used to compare the clinical scores of the different transplant types. Results The mean defect size of the tibiofemoral joint compartment was 4.28 cm2 (SD 1.70). In total, 11 patients (12.6%) underwent transplantation with Chondro-Gide (matrix-associated autologous chondrocyte implantation (MACI)), 40 patients (46.0%) with Hyalograft C (HYAFF), 21 patients (24.1%) with Cartilage Regeneration System (CaReS), and 15 patients (17.2%) with NOVOCART 3D. The mean IKDC Subjective Knee Form score improved from 35.71 (SD 6.44) preoperatively to 75.26 (SD 18.36) after 24 months postoperatively in the Hyalograft group, from 35.94 (SD 10.29) to 71.57 (SD 16.31) in the Chondro-Gide (MACI) group, from 37.06 (SD 5.42) to 71.49 (SD 6.76) in the NOVOCART 3D group, and from 45.05 (SD 15.83) to 70.33 (SD 19.65) in the CaReS group. Similar improvements were observed in the VAS and Brittberg scores. Conclusion Two years postoperatively, there were no significant differences in terms of outcomes. Our data demonstrated that MACT, regardless of the implants used, resulted in good clinical improvement two years after transplantation for localized tibiofemoral defects. Cite this article: Bone Joint Res 2021;10(7):370–379.

Matrix-Assisted Autologous Chondrocyte Transplantation for Cartilage Regeneration in Osteoarthritic Knees

2012 ◽  
Vol 41 (1) ◽  
pp. 95-100 ◽  
Author(s):  
Giuseppe Filardo ◽  
Francesca Vannini ◽  
Maurilio Marcacci ◽  
Luca Andriolo ◽  
Alberto Ferruzzi ◽  
...  
Keyword(s):  
Failure Rate ◽  
Young Patients ◽  
Activity Level ◽  
Autologous Chondrocyte Transplantation ◽  
Salvage Procedure ◽  
Chondrocyte Transplantation ◽  
The Mean ◽  
Eq Vas ◽  
Autologous Chondrocyte

Background: Young patients with osteoarthritic knees are a challenging population because of a combination of high functional demands and limited indication for joint replacement. Purpose: To analyze the potential of the cartilage regenerative approach by documenting the results and failures of matrix-assisted autologous chondrocyte transplantation (MACT) at midterm follow-up. Study Design: Case series; Level of evidence, 4. Methods: Forty-four patients affected by cartilage lesions in osteoarthritic knees underwent MACT as a salvage procedure. The mean age at surgery was 42 years (range, 20-58 years), and the average defect size was 4 cm2 (range, 1.5-9 cm2). Patients were prospectively evaluated with the subjective International Knee Documentation Committee (IKDC), EuroQol visual analog scale (EQ-VAS), and Tegner scores preoperatively; at 1, 2, and 5 years; and at a final assessment at 9 years’ mean follow-up. Adverse events and failures were also reported. Results: A statistically significant improvement was observed in all scores from the initial evaluation to the final follow-up. The mean ± standard deviation IKDC subjective score improved from 38.0 ± 15.8 to 67.0 ± 18.3 at 2 years ( P < .0005), with a subsequent decrease to 57.8 ± 20.6 at the final follow-up ( P = .012). The same trend was confirmed by the EQ-VAS score. The activity level revealed by the Tegner score improved at all follow-ups but without achieving the preinjury level. The analysis of the influencing factors showed the importance of the meniscus condition, revealing a significantly inferior outcome in knees with previous or combined partial meniscectomy procedures. During the study period, 12 patients had failed results, producing a cumulative failure rate of 27.3%. At the last evaluation, half of the patients considered their condition not better than before the treatment, and 39% would not repeat the treatment considering the results obtained. Conclusion: Despite a statistically significant improvement, the clinical outcome was poor. A higher improvement could be obtained in patients who had not undergone previous or combined meniscectomies, but this was limited over time. The failure rate was also high, regardless of the degree of osteoarthritis. Tissue-engineered cartilage implantation is questionable for this indication, and the limits of this scaffold-based procedure have to be considered if it is used as a salvage procedure for young patients affected by knee osteoarthritis.

Etiology of Cartilage Lesions Does Not Affect Clinical Outcomes of Patellofemoral Autologous Chondrocyte Implantation

Cartilage ◽  
2021 ◽  
pp. 194760352110309
Author(s):  
Alexandre Barbieri Mestriner ◽  
Jakob Ackermann ◽  
Gergo Merkely ◽  
Pedro Henrique Schmidt Alves Ferreira Galvão ◽  
Luiz Felipe Morlin Ambra ◽  
...  
Keyword(s):  
Clinical Outcomes ◽  
Autologous Chondrocyte Implantation ◽  
Second Generation ◽  
Cartilage Lesion ◽  
Chondrocyte Implantation ◽  
Group 3 ◽  
Group 2 ◽  
Autologous Chondrocyte ◽  
Group 1

Objective To determine the relationship between cartilage lesion etiology and clinical outcomes after second-generation autologous chondrocyte implantation (ACI) in the patellofemoral joint (PFJ) with a minimum of 2 years’ follow-up. Methods A retrospective review of all patients that underwent ACI in the PFJ by a single surgeon was performed. Seventy-two patients with a mean follow-up of 4.2 ± 2.0 years were enrolled in this study and were stratified into 3 groups based on the etiology of PFJ cartilage lesions: patellar dislocation (group 1; n = 23); nontraumatic lesions, including chondromalacia, osteochondritis dissecans, and degenerative defects (group 2; n = 28); and other posttraumatic lesions besides patellar dislocations (group 3; n = 21). Patient’s mean age was 29.6 ± 8.7 years. Patients in group 1 were significantly younger (25.4 ± 7.9 years) than group 2 (31.7 ± 9.6 years; P = 0.025) and group 3 (31.5 ± 6.6 years; P = 0.05). Body mass index averaged 26.2 ± 4.3 kg/m2, with a significant difference between group 1 (24.4 ± 3.2 kg/m2) and group 3 (28.7 ± 4.5 kg/m2; P = 0.005). A clinical comparison was established between groups based on patient-reported outcome measures (PROMs) and failure rates. Results Neither pre- nor postoperative PROMs differed between groups ( P > 0.05). No difference was seen in survivorship between groups (95.7% vs. 82.2% vs. 90.5%, P > 0.05). Conclusion Cartilage lesion etiology did not influence clinical outcome in this retrospective study after second generation ACI in the PFJ. Level of Evidence Level III, retrospective comparative study.

scholarly journals Sporting participation following the operative management of chondral defects of the knee at mid-term follow up: a systematic review and meta-analysis

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
P. G. Robinson ◽  
T. Williamson ◽  
I. R. Murray ◽  
K. Al-Hourani ◽  
T. O. White
Keyword(s):  
Systematic Review ◽  
Autologous Chondrocyte Implantation ◽  
Platelet Rich Plasma ◽  
Meta Analysis ◽  
Osteochondral Allograft ◽  
Chondral Defects ◽  
Chondrocyte Implantation ◽  
The Mean ◽  
Autologous Chondrocyte

Abstract Purpose The purpose of this study was to perform a systematic review of the reparticipation in sport at mid-term follow up in athletes who underwent biologic treatment of chondral defects in the knee and compare the rates amongst different biologic procedures. Methods A search of PubMed/Medline and Embase was performed in May 2020 in keeping with Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guidelines. The criteria for inclusion were observational, published research articles studying the outcomes and rates of participation in sport following biologic treatments of the knee with a minimum mean/median follow up of 5 years. Interventions included microfracture, osteochondral autograft transfer (OAT), autologous chondrocyte implantation (ACI), matrix-induced autologous chondrocyte implantation (MACI), osteochondral allograft, or platelet rich plasma (PRP) and peripheral blood stem cells (PBSC). A random effects model of head-to-head evidence was used to determine rates of sporting participation following each intervention. Results There were twenty-nine studies which met the inclusion criteria with a total of 1276 patients (67% male, 33% female). The mean age was 32.8 years (13–69, SD 5.7) and the mean follow up was 89 months (SD 42.4). The number of studies reporting OAT was 8 (27.6%), ACI was 6 (20.7%), MACI was 7 (24.1%), microfracture was 5 (17.2%), osteochondral allograft was 4 (13.8%), and one study (3.4%) reported on PRP and PBSC. The overall return to any level of sport was 80%, with 58.6% returning to preinjury levels. PRP and PBSC (100%) and OAT (84.4%) had the highest rates of sporting participation, followed by allograft (83.9%) and ACI (80.7%). The lowest rates of participation were seen following MACI (74%) and microfracture (64.2%). Conclusions High rates of re-participation in sport are sustained for at least 5 years following biologic intervention for chondral injuries in the knee. Where possible, OAT should be considered as the treatment of choice when prolonged participation in sport is a priority for patients. However, MACI may achieve the highest probability of returning to the same pre-injury sporting level. Level of evidence IV

Diffusion-weighted imaging for the follow-up of patients after matrix-associated autologous chondrocyte transplantation

2010 ◽  
Vol 73 (3) ◽  
pp. 622-628 ◽  
Author(s):  
Klaus M. Friedrich ◽  
Tallal C. Mamisch ◽  
Christina Plank ◽  
Georg Langs ◽  
Stefan Marlovits ◽  
...  
Keyword(s):  
Diffusion Weighted Imaging ◽  
Autologous Chondrocyte Transplantation ◽  
Chondrocyte Transplantation ◽  
Diffusion Weighted ◽  
Autologous Chondrocyte

Matrix-induced autologous chondrocyte implantation (MACI) in the knee: clinical outcomes and challenges

2014 ◽  
Vol 23 (12) ◽  
pp. 3729-3735 ◽  
Author(s):  
Erhan Basad ◽  
Fabian R. Wissing ◽  
Patrick Fehrenbach ◽  
Markus Rickert ◽  
Jürgen Steinmeyer ◽  
...  
Keyword(s):  
Clinical Outcomes ◽  
Autologous Chondrocyte Implantation ◽  
Chondrocyte Implantation ◽  
Autologous Chondrocyte
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