scholarly journals Cell-Free Osteochondral Scaffold for the Treatment of Focal Articular Cartilage Defects in Early Knee OA: 5 Years’ Follow-Up Results

2019 ◽  
Vol 8 (11) ◽  
pp. 1978 ◽  
Author(s):  
Andrea Sessa ◽  
Luca Andriolo ◽  
Alessandro Di Martino ◽  
Iacopo Romandini ◽  
Roberto De Filippis ◽  
...  

The purpose of this study was to investigate the clinical results at five years’ follow-up of a tri-layered nanostructured biomimetic osteochondral scaffold used for focal articular cartilage defects in patients meeting the criteria of early osteoarthritis (EOA). The study population comprised 22 patients (mean age: 39 years), prospectively assessed before surgery, at 24 and 60 months’ follow-up. Inclusion criteria were: at least two episodes of knee pain for more than 10 days in the last year, Kellgren-Lawrence OA grade 0, I or II and arthroscopic or MRI findings according to the European Society of Sports Traumatology, Knee Surgery & Arthroscopy (ESSKA) criteria. Clinical results demonstrated significant improvement in International Knee Documentation Committee (IKDC) subjective and objective scores and in Tegner score, although activity level never reached the pre-injury level. The complication rate of this study was 8.3%. Two patients underwent re-operation (8.3%), while a comprehensive definition of failure (including both surgical and clinical criteria) identified four failed patients (16.6%) at this mid-term follow-up evaluation. The use of a free-cell osteochondral scaffold represented a safe and valid alternative for the treatment of focal articular cartilage defects in the setting of an EOA, and was able to permit a significant clinical improvement and stable outcome with low complication and failure rates.

2010 ◽  
Vol 4 (1) ◽  
pp. 111-114 ◽  
Author(s):  
Sandra Muller ◽  
Roelf S Breederveld ◽  
Wim E Tuinebreijer

Repair of full thickness defects of articular cartilage in the knee is difficult but important to prevent progression to osteoarthritis. The purpose of this retrospective study was to evaluate the clinical results of Osteochondral Autograft Transplant System (OATS) treatment for articular defects of the knee.Between 1999 and 2005, 15 knees (14 patients) were treated by the OATS technique. Age ranged from 27 to 52 years. Cartilage defects were up to 3.75 cm2. The mean follow-up was 42 months. Knee function was assessed by the Lysholmscore and International Knee Documentation Committee (IKDC) Subjective Knee Form. Six patients scored good or excellent. No patient had knee instability. Twelve of 13 patients returned to sports at an intermediate or high level. The subjective assessment score (0-10) changed from 4.7 before operation to 7.2 afterward (P=0.007). The OATS-technique resulted in a decrease in symptoms in patients with localized articular cartilage defects. We consider the OATS technique to be an appropriate treatment for cartilage defects to prevent progression of symptoms.


2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Martina Ricci ◽  
Daniele Tradati ◽  
Alessio Maione ◽  
Francesco Mattia Uboldi ◽  
Eva Usellini ◽  
...  

Abstract Purpose The treatment of osteochondral lesions is challenging and no consensus has been established about the best option for restoring both cartilage and subchondral bone. Multilayer collagen-hydroxyapatite scaffolds have shown promising clinical results, but the outcome at a follow-up longer than 5 years still has to be proved. The aim was to evaluate the clinical outcome of patients with a knee isolated osteochondral lesion treated with a biomimetic three-layered scaffold at a minimum 5 years of follow-up. Methods Twenty-nine patients (23 males and 6 females, mean age 31.5 ± 11.4 years) were evaluated retrospectively before surgery, at 1 and 2 years and at last follow-up (FU). Visual Analog Scale (VAS) for pain, International Knee Documentation Committee (IKDC) Subjective Score, Tegner-Lysholm Knee Scoring Scale and Tegner Activity Level Scale were collected. Mean FU was 7.8 ± 2.0 years (min 5.1 - max 11.3). The etiology of the defect was Osteochondritis Dissecans or osteonecrosis (17 vs 12 cases). Results At 12 months FU the IKDC score improved from 51.1 ± 21.7 to 80.1 ± 17.9 (p < 0.01), Tegner Lysholm Score from 59.9 ± 17.3 to 92.5 ± 9.0 (p < 0.01), VAS from 6.1 ± 2.1 to 1.7 ± 2.3 (p < 0.01) and Tegner Activity Level Scale from 1.6 ± 0.5 to 4.9 ± 1.7 (p < 0.01). The results remained stable at 24 months, while at last FU a statistically significant decrease in IKDC, Tegner Lysholm and Tegner Activity Scale was recorded, though not clinically relevant. Patients under 35 achieved statistically better outcomes. Conclusions The use of a cell-free collagen-hydroxyapatite osteochondral scaffold provides substantial clinical benefits in the treatment of knee osteochondral lesions at a minimum follow-up of 5 years, especially in patients younger than 35 years. Level of evidence Level IV.


2012 ◽  
Vol 40 (11) ◽  
pp. 2499-2508 ◽  
Author(s):  
Rimtautas Gudas ◽  
Agnė Gudaitė ◽  
Arnoldas Pocius ◽  
Asta Gudienė ◽  
Emilis Čekanauskas ◽  
...  

Background: Various techniques have proven to be effective for treating articular cartilage defect (ACD) and osteochondral defect (OCD) of the knee joint, but knowledge regarding which method is best still remains uncertain. Purpose: To evaluate and compare the outcomes of mosaic-type osteochondral autologous transplantation (OAT) and microfracture (MF) procedures for the treatment of articular cartilage defects of the knee joint in young active athletes. This article represents an update of the clinical results at 10 years. Study Design: Randomized controlled trial; Level of evidence, 1. Methods: Between 1998 and 2002, a total of 60 athletes with a mean age of 24.3 years (range, 15-40 years) and with a symptomatic ACD or OCD in the knee were randomized to undergo either OAT or MF. Patients were then evaluated postoperatively using the International Cartilage Repair Society (ICRS) score, Tegner activity score, radiographs, and magnetic resonance imaging. The mean follow-up time was 10.4 years (range, 9-11 years). Results: Three to 10 years after the OAT and MF procedures, patients had lower ICRS and Tegner scores ( P < .05), but both groups still had significant clinical improvement over presurgery scores according to ICRS scores at 10-year follow-up. Statistically significantly better results were detected in patients in the OAT group compared with those in the MF group at 10 years ( P < .005). At 10-year follow-up, there were 15 failures (26%), including 4 failures (14%) of the OAT and 11 failures (38%) of MF treatment ( P < .05). Seven patients (25%) from the OAT group and 14 patients (48%) from the MF group had radiographic evidence of Kellgren-Lawrence grade I osteoarthritis at 10 years, but these differences were not significant ( P = .083) or related to the clinical results. The ICRS and Tegner scores of younger athletes (<25 years at the time of primary surgery) remained significantly higher after 10 years compared with older patients ( P < .05); 15 of 20 patients (75%) in the OAT group and 8 of 22 patients (37%) in the MF group maintained the same physical activity level. Conclusion: The OAT technique for ACD or OCD repair in the athletic population allows for a higher rate of return to and maintenance of sports at the preinjury level compared with MF.


2003 ◽  
Vol 13 (4) ◽  
pp. 686-689 ◽  
Author(s):  
A. Mohr ◽  
M. Priebe ◽  
B. Taouli ◽  
J. Grimm ◽  
M. Heller ◽  
...  

2004 ◽  
Vol 2 (4) ◽  
pp. 0-0
Author(s):  
Rimtautas Gudas ◽  
Romas Jonas Kalesinskas ◽  
Giedrius Bernotavičius ◽  
Eglė Monastyreckienė ◽  
Angelija Valančiūtė ◽  
...  

Rimtautas Gudas1, Romas Jonas Kalesinskas1, Giedrius Bernotavičius1, Eglė Monastyreckienė2, Angelija Valančiūtė3, Darius Pranys41 Kauno medicinos universiteto klinikųOrtopedijos ir traumatologijos klinikaEivenių g. 2, LT-50009 Kaunasel paštas: [email protected] Kauno medicinos universiteto klinikųRadiologijos klinika3 Kauno medicinos universitetoEmbriologijos ir histologijos katedra4 Kauno medicinos universitetoPatologinės anatomijos klinika Tikslas Mūsų prospektyvaus klinikinio tyrimo tikslas – įvertinti mozaikinės autologinės transplantacijos rezultatus gydant kelio sąnario kremzlės pažeidimus. Ligoniai ir metodai 1998–2002 metais KMU Ortopedijos ir traumatologijos klinikoje atliktos 87 autologinės mozaikinės transplantacijos operacijos esant kelio sąnario kremzlės ir kaulo pažeidimams. Pacientų amžiaus vidurkis operacijų metu buvo 24,74 ± 7,20 metų (14–40 metų). Simptomai vidutiniškai truko 21,32 ± 5,57 mėnesio, o pacientai įvertinti praėjus vidutiniškai 24,4 mėnesio (nuo 12 iki 60 mėnesių) po operacijos. Rezultatai apibendrinti naudojant ICRS (International Cartilage Repair Society) anketą, 13 (15%) atvejų – remiantis kartotinių artroskopijų metu atliktu makroskopiniu įvertinimu, 9 (11%) atvejais – histologiniu tyrimu, 57 (67%) atvejais – BMR ir visais atvejais – rentgeno tyrimais. Visus anketinius įvertinimus atliko nepriklausomas gydytojas ortopedas prieš operacijas ir po operacijų praėjus dvylikai, dvidešimt keturiems, trisdešimt šešiems, keturiasdešimt aštuoniems ir šešiasdešimčiai mėnesių. Nepriklausomi nuo tyrimo gydytojai, radiologas ir patologas, atliko visus BMR ir histomorfologinius įvertinimus. Rezultatai Praėjus vidutiniškai 24,4 mėnesio po mozaikinės transplantacijos, ICRS anketos būdu nustatytas klinikinis rezultatų pagerėjimas (p < 0,05). Funkcinis ir objektyvus įvertinimas pagal ICRS anketą buvo toks: 93% atvejų gauti geri ir labai geri operacinio gydymo rezultatai, kitais atvejais (7%) gydymo rezultatai buvo patenkinami. Kartotinių artroskopijų metu (remiantis ICRS protokolu), po operacijų praėjus vidutiniškai 12,4 mėnesio, 11 (84%) iš 13 atvejų buvo nustatytas geras ir labai geras sąnario kremzlės makroskopinis atsitaisymas. Sąnario kremzlės biopsijos ir histologinis tyrimas buvo atliktas 11% pacientų, ir daugumos jų (remiantis ICRS protokolu) sąnario kremzlės ir pokremzlinio kaulo atitaisymo koeficientas buvo geras. BMR tyrimas parodė, kad 94% pacientų sąnario paviršius atkurtas gerai arba labai gerai. Išvados Mūsų tyrimas parodė, kad po mozaikinės autologinės transplantacijos praėjus vidutiniškai 24,4 mėnesio (nuo 12 iki 60 mėn.) fiziškai aktyvių pacientų, kuriems buvo pažeista kelio sąnario kremzlė, klinikinė ir funkcinė būklė labai pagerėjo. Dauguma pacientų po kremzlės mozaikinės autologinės transplantacijos atgauna prieš pažeidimą buvusį fizinio aktyvumo lygį. Histomorfologinis persodintų transplantatų tyrimas parodė, kad visais tirtais atvejais išsilaikė hialininės kremzlės struktūra ir fibroelastinio audinio intarpai tarp transplantatų. Reikšminiai žodžiai: sąnario kremzlės pažeidimai, mozaikinė transplantacija Mosaic-like autologous osteochondral transplantation for the treatment of knee joint articular cartilage injuries Rimtautas Gudas1, Romas Jonas Kalesinskas1, Giedrius Bernotavičius1, Eglė Monastyreckienė2, Angelija Valančiūtė3, Darius Pranys4 Objective The purpose of this prospective clinical study was to evaluate the outcomes of mosaic type autologous osteochondral transplantation procedure for the treatment of the articular cartilage defects of the knee joint. Patients and methods Between 1998 and 2002, a total of 85 patients underwent an osteochondral autologous transplantation (mosaicplasty) procedure for osteochondral or chondral knee joint injury. The patients were evaluated using the ICRS score, arthroscopically, histologically, with MRI and X-ray examinations. The mean duration of symptoms was 21.32 ± 5.57 months and the mean follow-up was 24.4 months (range, 12 to 60 months). The mean age of the patients during the surgery was 24.74 ± 7.20 years (range, 14 to 40 years). An independent observer performed a follow-up examination after six, twelve, twenty-four, thirty-six and forty-eight months. In 13 (15%) of 85 cases 12.4 months postoperatively, arthroscopy with biopsy for histological evaluation was carried out. A radiologist and a pathologist, both blinded to each patient’s treatment, did the radiological and histological evaluations. Results After 24.4 months all the patients showed a significant clinical improvement (p < 0.05). The cartilage Repair Society (ICRS) score, functional and objective assessment revealed 93% to have excellent or good results after mosaicplasty; 7% were fair 24.4 months (range, 12–60 months) after the operations. The ICRS evaluation showed a significant improvement after the mosaicplasty procedure 24.4 months following operations (p = 0.005). No serious complications were reported. The ICRS for macroscopic evaluation during arthroscopy 12.4 months after mosaicplasty demonstrated excellent or good repair in 11 (84%) of 13 cases. Biopsy specimens were obtained from 9 (69%) of 13 patients, and histological evaluation of repair showed good scores (according to ICRS) for most samples after mosaicplasty. A MRI evaluation demonstrated excellent or good repairs in 94% after mosaicplasty. Conclusions On an average after 24.4 months (range, 12 to 60 months) of follow-up, our clinical study has shown a significant improvement of the clinical status of the physically active patients after the mosaic type autologous osteochondral transplantation for the repair of articular cartilage defects in the knee. Histologically, the osteochondral cylinder transplants retained hyaline cartilage. Keywords: articular cartilage injury, osteochondral mosaic-like transplantation


1996 ◽  
Vol 5 (2) ◽  
pp. 127-142
Author(s):  
Michael Ra ◽  
Michael Sitler ◽  
Jeff Ryan ◽  
Raymond Moyer ◽  
Paul Marchetto ◽  
...  

Chondral lesions often occur in the knee as isolated defects or part of more complex injuries. Articular cartilage defects decrease the ability of the knee to sustain weight-bearing loads and may accelerate degeneration of the joint when left untreated. The purpose of this study was to determine the clinical, functional, and radiographic outcome of arthroscopic abrasion chondroplasty of the knee. The Articular Cartilage Rating System was used to assess the location, size, depth, and description of the articular lesion. The Standard Knee Evaluation Form and Cincinnati Knee Rating Scale were used to assess the clinical, functional, and radiographic outcome of the procedure. Average time to postsurgery follow-up was 46 ± 26.69 months. Within the constraints of the present study, arthroscopic abrasion chondroplasty of the knee had a favorable clinical, functional, and radiographic outcome. However, more study is needed with larger samples and longer follow-up before definitive conclusions about the efficacy of the procedure can be made.


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