A randomized trial of autologous chondrocyte implantation versus alternative forms of surgical cartilage management in patients with a failed primary treatment for chondral or osteochondral defects in the knee

<strong>Background:<br></strong> There are limited randomized controlled trials with long-term outcomes comparing autologous chondrocyte implantation (ACI) versus alternative forms of surgical cartilage management within the knee. <br><strong>Purpose:<br></stro...

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Main Authors: Snow, M, Middleton, L, Mehta, S, Roberts, A, Gray, R, Richardson, J, Kuiper, JH, Price, A, Smith, A, White, S, Roberts, S, Griffiths, D, Mohammed, A, Moholkar, K, Ashraf, T, Green, M, Hutchinson, J, Bhullar, T, Chitnis, S, Shaw, A, van Niekerk, L, Hui, A, Drogset, JO, Knutsen, G, McNicholas, M, Bowditch, M, Johnson, D, Turner, P, Chugh, S, Hunt, N, Ali, S, Palmer, S, Perry, A, Davidson, A, Hill, P, Deo, S, Satish, V, Radford, M, Langstaff, R, Houlihan-Burne, D, Spicer, D, Phaltankar, P, Hegab, A, Marsh, D, Cannon, S, Briggs, T, Pollock, R, Carrington, R, Skinner, J, Bentley, G
Other Authors: ACTIVE Consortium
Format: Journal article
Language:English
Published: SAGE Publications 2023
_version_ 1797108962971090944
author Snow, M
Middleton, L
Mehta, S
Roberts, A
Gray, R
Richardson, J
Kuiper, JH
Price, A
Smith, A
White, S
Roberts, S
Griffiths, D
Mohammed, A
Moholkar, K
Ashraf, T
Green, M
Hutchinson, J
Bhullar, T
Chitnis, S
Shaw, A
van Niekerk, L
Hui, A
Drogset, JO
Knutsen, G
McNicholas, M
Bowditch, M
Johnson, D
Turner, P
Chugh, S
Hunt, N
Ali, S
Palmer, S
Perry, A
Davidson, A
Hill, P
Deo, S
Satish, V
Radford, M
Langstaff, R
Houlihan-Burne, D
Spicer, D
Phaltankar, P
Hegab, A
Marsh, D
Cannon, S
Briggs, T
Pollock, R
Carrington, R
Skinner, J
Bentley, G
author2 ACTIVE Consortium
author_facet ACTIVE Consortium
Snow, M
Middleton, L
Mehta, S
Roberts, A
Gray, R
Richardson, J
Kuiper, JH
Price, A
Smith, A
White, S
Roberts, S
Griffiths, D
Mohammed, A
Moholkar, K
Ashraf, T
Green, M
Hutchinson, J
Bhullar, T
Chitnis, S
Shaw, A
van Niekerk, L
Hui, A
Drogset, JO
Knutsen, G
McNicholas, M
Bowditch, M
Johnson, D
Turner, P
Chugh, S
Hunt, N
Ali, S
Palmer, S
Perry, A
Davidson, A
Hill, P
Deo, S
Satish, V
Radford, M
Langstaff, R
Houlihan-Burne, D
Spicer, D
Phaltankar, P
Hegab, A
Marsh, D
Cannon, S
Briggs, T
Pollock, R
Carrington, R
Skinner, J
Bentley, G
author_sort Snow, M
collection OXFORD
description <strong>Background:<br></strong> There are limited randomized controlled trials with long-term outcomes comparing autologous chondrocyte implantation (ACI) versus alternative forms of surgical cartilage management within the knee. <br><strong>Purpose:<br></strong> To determine at 5 years after surgery whether ACI was superior to alternative forms of cartilage management in patients after a failed previous treatment for chondral or osteochondral defects in the knee. <br><strong>Study Design:<br></strong> Randomized controlled trial; Level of evidence, 1. <br><strong>Methods:<br></strong> In total, 390 participants were randomly assigned to receive either ACI or alternative management. Patients aged 18 to 55 years with one or two symptomatic cartilage defects who had failed 1 previous therapeutic surgical procedure in excess of 6 months prior were included. Dual primary outcome measures were used: (1) patient-completed Lysholm knee score and (2) time from surgery to cessation of treatment benefit. Secondary outcome measures included International Knee Documentation Committee and Cincinnati Knee Rating System scores, as well as number of serious adverse events. Analysis was performed on an intention-to-treat basis. <br><strong>Results:<br></strong> Lysholm scores were improved by 1 year in both groups (15.4 points [95% CI, 11.9 to 18.8] and 15.2 points [95% CI, 11.6 to 18.9]) for ACI and alternative, with this improvement sustained over the duration of the trial. However, no evidence of a difference was found between the groups at 5 years (2.9 points; 95% CI, −1.8 to 7.5; P = .46). Approximately half of the participants (55%; 95% CI, 47% to 64% with ACI) were still experiencing benefit at 5 years, with time to cessation of treatment benefit similar in both groups (hazard ratio, 0.97; 95% CI, 0.72 to 1.32; P > .99). There was a differential effect on Lysholm scores in patients without previous marrow stimulation compared with those with marrow stimulation (P = .03; 6.4 points in favor of ACI; 95% CI, −0.4 to 13.1). More participants experienced a serious adverse event with ACI (P = .02). <br><strong>Conclusion:<br></strong> Over 5 years, there was no evidence of a difference in Lysholm scores between ACI and alternative management in patients who had previously failed treatment. Previous marrow stimulation had a detrimental effect on the outcome of ACI. <br><strong>Registration:<br></strong> International Standard Randomised Controlled Trial Number: 48911177
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spelling oxford-uuid:b5315ac0-39ae-45e3-96bf-bb1ed14887102023-02-28T12:29:36ZA randomized trial of autologous chondrocyte implantation versus alternative forms of surgical cartilage management in patients with a failed primary treatment for chondral or osteochondral defects in the kneeJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b5315ac0-39ae-45e3-96bf-bb1ed1488710EnglishSymplectic ElementsSAGE Publications2023Snow, MMiddleton, LMehta, SRoberts, AGray, RRichardson, JKuiper, JHPrice, ASmith, AWhite, SRoberts, SGriffiths, DMohammed, AMoholkar, KAshraf, TGreen, MHutchinson, JBhullar, TChitnis, SShaw, Avan Niekerk, LHui, ADrogset, JOKnutsen, GMcNicholas, MBowditch, MJohnson, DTurner, PChugh, SHunt, NAli, SPalmer, SPerry, ADavidson, AHill, PDeo, SSatish, VRadford, MLangstaff, RHoulihan-Burne, DSpicer, DPhaltankar, PHegab, AMarsh, DCannon, SBriggs, TPollock, RCarrington, RSkinner, JBentley, GACTIVE Consortium<strong>Background:<br></strong> There are limited randomized controlled trials with long-term outcomes comparing autologous chondrocyte implantation (ACI) versus alternative forms of surgical cartilage management within the knee. <br><strong>Purpose:<br></strong> To determine at 5 years after surgery whether ACI was superior to alternative forms of cartilage management in patients after a failed previous treatment for chondral or osteochondral defects in the knee. <br><strong>Study Design:<br></strong> Randomized controlled trial; Level of evidence, 1. <br><strong>Methods:<br></strong> In total, 390 participants were randomly assigned to receive either ACI or alternative management. Patients aged 18 to 55 years with one or two symptomatic cartilage defects who had failed 1 previous therapeutic surgical procedure in excess of 6 months prior were included. Dual primary outcome measures were used: (1) patient-completed Lysholm knee score and (2) time from surgery to cessation of treatment benefit. Secondary outcome measures included International Knee Documentation Committee and Cincinnati Knee Rating System scores, as well as number of serious adverse events. Analysis was performed on an intention-to-treat basis. <br><strong>Results:<br></strong> Lysholm scores were improved by 1 year in both groups (15.4 points [95% CI, 11.9 to 18.8] and 15.2 points [95% CI, 11.6 to 18.9]) for ACI and alternative, with this improvement sustained over the duration of the trial. However, no evidence of a difference was found between the groups at 5 years (2.9 points; 95% CI, −1.8 to 7.5; P = .46). Approximately half of the participants (55%; 95% CI, 47% to 64% with ACI) were still experiencing benefit at 5 years, with time to cessation of treatment benefit similar in both groups (hazard ratio, 0.97; 95% CI, 0.72 to 1.32; P > .99). There was a differential effect on Lysholm scores in patients without previous marrow stimulation compared with those with marrow stimulation (P = .03; 6.4 points in favor of ACI; 95% CI, −0.4 to 13.1). More participants experienced a serious adverse event with ACI (P = .02). <br><strong>Conclusion:<br></strong> Over 5 years, there was no evidence of a difference in Lysholm scores between ACI and alternative management in patients who had previously failed treatment. Previous marrow stimulation had a detrimental effect on the outcome of ACI. <br><strong>Registration:<br></strong> International Standard Randomised Controlled Trial Number: 48911177
spellingShingle Snow, M
Middleton, L
Mehta, S
Roberts, A
Gray, R
Richardson, J
Kuiper, JH
Price, A
Smith, A
White, S
Roberts, S
Griffiths, D
Mohammed, A
Moholkar, K
Ashraf, T
Green, M
Hutchinson, J
Bhullar, T
Chitnis, S
Shaw, A
van Niekerk, L
Hui, A
Drogset, JO
Knutsen, G
McNicholas, M
Bowditch, M
Johnson, D
Turner, P
Chugh, S
Hunt, N
Ali, S
Palmer, S
Perry, A
Davidson, A
Hill, P
Deo, S
Satish, V
Radford, M
Langstaff, R
Houlihan-Burne, D
Spicer, D
Phaltankar, P
Hegab, A
Marsh, D
Cannon, S
Briggs, T
Pollock, R
Carrington, R
Skinner, J
Bentley, G
A randomized trial of autologous chondrocyte implantation versus alternative forms of surgical cartilage management in patients with a failed primary treatment for chondral or osteochondral defects in the knee
title A randomized trial of autologous chondrocyte implantation versus alternative forms of surgical cartilage management in patients with a failed primary treatment for chondral or osteochondral defects in the knee
title_full A randomized trial of autologous chondrocyte implantation versus alternative forms of surgical cartilage management in patients with a failed primary treatment for chondral or osteochondral defects in the knee
title_fullStr A randomized trial of autologous chondrocyte implantation versus alternative forms of surgical cartilage management in patients with a failed primary treatment for chondral or osteochondral defects in the knee
title_full_unstemmed A randomized trial of autologous chondrocyte implantation versus alternative forms of surgical cartilage management in patients with a failed primary treatment for chondral or osteochondral defects in the knee
title_short A randomized trial of autologous chondrocyte implantation versus alternative forms of surgical cartilage management in patients with a failed primary treatment for chondral or osteochondral defects in the knee
title_sort randomized trial of autologous chondrocyte implantation versus alternative forms of surgical cartilage management in patients with a failed primary treatment for chondral or osteochondral defects in the knee
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AT hegaba randomizedtrialofautologouschondrocyteimplantationversusalternativeformsofsurgicalcartilagemanagementinpatientswithafailedprimarytreatmentforchondralorosteochondraldefectsintheknee
AT marshd randomizedtrialofautologouschondrocyteimplantationversusalternativeformsofsurgicalcartilagemanagementinpatientswithafailedprimarytreatmentforchondralorosteochondraldefectsintheknee
AT cannons randomizedtrialofautologouschondrocyteimplantationversusalternativeformsofsurgicalcartilagemanagementinpatientswithafailedprimarytreatmentforchondralorosteochondraldefectsintheknee
AT briggst randomizedtrialofautologouschondrocyteimplantationversusalternativeformsofsurgicalcartilagemanagementinpatientswithafailedprimarytreatmentforchondralorosteochondraldefectsintheknee
AT pollockr randomizedtrialofautologouschondrocyteimplantationversusalternativeformsofsurgicalcartilagemanagementinpatientswithafailedprimarytreatmentforchondralorosteochondraldefectsintheknee
AT carringtonr randomizedtrialofautologouschondrocyteimplantationversusalternativeformsofsurgicalcartilagemanagementinpatientswithafailedprimarytreatmentforchondralorosteochondraldefectsintheknee
AT skinnerj randomizedtrialofautologouschondrocyteimplantationversusalternativeformsofsurgicalcartilagemanagementinpatientswithafailedprimarytreatmentforchondralorosteochondraldefectsintheknee
AT bentleyg randomizedtrialofautologouschondrocyteimplantationversusalternativeformsofsurgicalcartilagemanagementinpatientswithafailedprimarytreatmentforchondralorosteochondraldefectsintheknee