Clinical, Functional, and Radiographic Assessment of Arthroscopic Abrasion Chondroplasty of the Knee

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.

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.


2017 ◽  
Vol 5 (3_suppl3) ◽  
pp. 2325967117S0012
Author(s):  
Nicole Belkin ◽  
Alissa Burge ◽  
Brenda Chang ◽  
Riley J. Williams

Objectives: To evaluate the functional outcomes and morphologic appearance of repair tissue in patients with symptomatic knee articular cartilage defects treated with minced juvenile articular cartilage (DeNovo NT). Methods: Thirty-four patients underwent treatment of cartilage defects of the knee with minced juvenile articular cartilage allograft. Mean postoperative follow up was 33.6 months. MRIs were obtained at 24-months (16 patients) and 48-months or greater (13 patients). MRIs were evaluated for greyscale cartilage repair assessment score and quantitative T2 mapping. Baseline clinical outcome scores (IKDC, ADL, Marx Activity Rating Scale) were obtained prior to surgery, and at a minimum follow up interval of 24-months. Results: The mean IKDC and ADL scores significantly improved following surgery. The magnitude of improvement in IKDC scores was 30 (Std Dev 31). The Marx activity Rating Scale score demonstrated a resumption of pre-operative activity levels, Figure 1a . Donor age had no significant effect on functional outcomes scores of treated patients. MRI assessment revealed greater than 66% lesion fill (a score of 2) in 80% of patients. A trend toward significance in difference in % lesion fill was observed when patients were grouped according to donor age ≤ 5 vs. > 5 years (p = 0.09), Figure 1b . Lesion fill did not correlate with functional outcome score. Using one-way analysis of variance with post-hoc testing, a significant difference was found between T2 mapping of the deep zones of the graft and normal cartilage (p=0.003), Table 1 . [Figure: see text][Table: see text] Conclusion: Functional outcome scores significantly improved in patients treated with minced juvenile articular cartilage (De Novo NT) for the treatment of symptomatic articular cartilage lesions of the knee. Activity levels, as noted by the Marx Activity Scale were preserved. Morphologic analysis demonstrated greater than 66% lesion fill in 80% of the patients studied. T2 mapping demonstrated the sensitivity to assess differences between repair tissue and native cartilage.


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


2009 ◽  
Vol 18 (4) ◽  
pp. 504-508 ◽  
Author(s):  
Eirik Solheim ◽  
Jannike Øyen ◽  
Janne Hegna ◽  
Ove K. Austgulen ◽  
Thomas Harlem ◽  
...  

Trials ◽  
2020 ◽  
Vol 21 (1) ◽  
Author(s):  
J. V. Korpershoek ◽  
L. A. Vonk ◽  
E. C. Kester ◽  
L. B. Creemers ◽  
T. S. de Windt ◽  
...  

Abstract Background Articular cartilage defects in the knee have poor intrinsic healing capacity and may lead to functional disability and osteoarthritis (OA). “Instant MSC Product accompanying Autologous Chondron Transplantation” (IMPACT) combines rapidly isolated recycled autologous chondrons with allogeneic MSCs in a one-stage surgery. IMPACT was successfully executed in a first-in-man investigator-driven phase I/II clinical trial in 35 patients. The purpose of this study is to compare the efficacy of IMPACT to nonsurgical treatment for the treatment of large (2–8 cm2) articular cartilage defects in the knee. Methods Sixty patients will be randomized to receive nonsurgical care or IMPACT. After 9 months of nonsurgical care, patients in the control group are allowed to receive IMPACT surgery. The Knee Injury and Osteoarthritis Outcome Score (KOOS), pain (numeric rating scale, NRS), and EuroQol five dimensions five levels (EQ5D-5 L) will be used to compare outcomes at baseline and 3, 6, 9, 12, and 18 months after inclusion. Cartilage formation will be assessed at baseline, and 6 and 18 months after inclusion using MRI. An independent rheumatologist will monitor the onset of a potential inflammatory response. (Severe) adverse events will be recorded. Lastly, the difference between IMPACT and nonsurgical care in terms of societal costs will be assessed by monitoring healthcare resource use and productivity losses during the study period. A health economic model will be developed to estimate the incremental cost-effectiveness ratio of IMPACT vs. nonsurgical treatment in terms of costs per quality adjusted life year over a 5-year time horizon. Discussion This study is designed to evaluate the efficacy of IMPACT compared to nonsurgical care. Additionally, safety of IMPACT will be assessed in 30 to 60 patients. Lastly, this study will evaluate the cost-effectiveness of IMPACT compared to nonsurgical care. Trial registration NL67161.000.18 [Registry ID: CCMO] 2018#003470#27 [EU-CTR; registered on 26 March 2019] NCT04236739 [ClinicalTrials.gov] [registered after start of inclusion; 22 January 2020]


2019 ◽  
Vol 6 (1) ◽  
pp. 22 ◽  
Author(s):  
Rebecca Davies ◽  
Nicola Kuiper

Articular cartilage is composed of chondrons within a territorial matrix surrounded by a highly organized extracellular matrix comprising collagen II fibrils, proteoglycans, glycosaminoglycans, and non-collagenous proteins. Damaged articular cartilage has a limited potential for healing and untreated defects often progress to osteoarthritis. High hopes have been pinned on regenerative medicine strategies to meet the challenge of preventing progress to late osteoarthritis. One such strategy, autologous chondrocyte implantation (ACI), was first reported in 1994 as a treatment for deep focal articular cartilage defects. ACI has since evolved to become a worldwide well-established surgical technique. For ACI, chondrocytes are harvested from the lesser weight bearing edge of the joint by arthroscopy, their numbers expanded in monolayer culture for at least four weeks, and then re-implanted in the damaged region under a natural or synthetic membrane via an open joint procedure. We consider the evolution of ACI to become an established cell therapy, its current limitations, and on-going strategies to improve its efficacy. The most promising developments involving cells and natural or synthetic biomaterials will be highlighted.


Sign in / Sign up

Export Citation Format

Share Document