An Autologous Cartilage Tissue Implant NeoCart for Treatment of Grade III Chondral Injury to the Distal Femur
Background: The healing potential of damaged articular cartilage is limited. The NeoCart is a tissue-engineered collagen matrix seeded with autogenous chondrocytes designed for the repair of hyaline articular cartilage. Hypothesis: The NeoCart implant is well tolerated in the human knee. Study Desig...
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| Veröffentlicht in: | The American journal of sports medicine 2009-07, Vol.37 (7), p.1334 |
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| container_title | The American journal of sports medicine |
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| creator | Crawford, Dennis C Heveran, Chelsea M Dilworth Cannon, W Li Foong Foo Potter, Hollis G |
| description | Background: The healing potential of damaged articular cartilage is limited. The NeoCart is a tissue-engineered collagen matrix seeded
with autogenous chondrocytes designed for the repair of hyaline articular cartilage.
Hypothesis: The NeoCart implant is well tolerated in the human knee.
Study Design: Case series; Level of evidence, 4.
Methods: Eight patients (treatment group) with full-thickness cartilage injury were treated with the NeoCart and evaluated prospectively.
Autogenous chondrocytes provided by arthroscopic biopsy were seeded into a 3-dimensional type I collagen scaffold. The seeded
scaffold was subjected to a tissue-engineering protocol including treatment with a bioreactor. Implantation of the prepared
cartilage tissue patch was performed via miniarthrotomy and secured with a collagen bioadhesive. Evaluations through 24 months
postoperatively included the subjective International Knee Documentation Committee questionnaire, visual analog scale, range
of motion, and cartilage-sensitive magnetic resonance imaging (MRI), including quantitative T2 mapping.
Results: Pain scores after NeoCart implantation were significantly lower than baseline at 12 and 24 months after the procedure ( P < .05). Improved function and motion were also noted at 24 months. Six patients had 67% to 100% defect fill at 24 months
with MRI evaluation. One patient had moderate (33%â66%) defect fill, and another patient had poor (less than 33%) defect fill.
Partial stratification of T2 values was observed for 2 patients at 12 months and 4 patients at 24 months. No patients experienced
arthrofibrosis or implant hypertrophy.
Conclusion: Pain was significantly reduced 12 and 24 months after NeoCart treatment. Trends toward improved function and motion were
observed 24 months after implantation. The MRI indicated implant stability and peripheral integration, defect fill without
overgrowth, progressive maturation, and more organized cartilage formation. |
| doi_str_mv | 10.1177/0363546509333011 |
| format | Article |
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with autogenous chondrocytes designed for the repair of hyaline articular cartilage.
Hypothesis: The NeoCart implant is well tolerated in the human knee.
Study Design: Case series; Level of evidence, 4.
Methods: Eight patients (treatment group) with full-thickness cartilage injury were treated with the NeoCart and evaluated prospectively.
Autogenous chondrocytes provided by arthroscopic biopsy were seeded into a 3-dimensional type I collagen scaffold. The seeded
scaffold was subjected to a tissue-engineering protocol including treatment with a bioreactor. Implantation of the prepared
cartilage tissue patch was performed via miniarthrotomy and secured with a collagen bioadhesive. Evaluations through 24 months
postoperatively included the subjective International Knee Documentation Committee questionnaire, visual analog scale, range
of motion, and cartilage-sensitive magnetic resonance imaging (MRI), including quantitative T2 mapping.
Results: Pain scores after NeoCart implantation were significantly lower than baseline at 12 and 24 months after the procedure ( P < .05). Improved function and motion were also noted at 24 months. Six patients had 67% to 100% defect fill at 24 months
with MRI evaluation. One patient had moderate (33%â66%) defect fill, and another patient had poor (less than 33%) defect fill.
Partial stratification of T2 values was observed for 2 patients at 12 months and 4 patients at 24 months. No patients experienced
arthrofibrosis or implant hypertrophy.
Conclusion: Pain was significantly reduced 12 and 24 months after NeoCart treatment. Trends toward improved function and motion were
observed 24 months after implantation. The MRI indicated implant stability and peripheral integration, defect fill without
overgrowth, progressive maturation, and more organized cartilage formation.</description><identifier>ISSN: 0363-5465</identifier><identifier>EISSN: 1552-3365</identifier><identifier>DOI: 10.1177/0363546509333011</identifier><identifier>PMID: 19448048</identifier><language>eng</language><publisher>Baltimore: American Orthopaedic Society for Sports Medicine</publisher><subject>Cartilage ; Collagen ; Defects ; Knee ; NMR ; Nuclear magnetic resonance ; Patients ; Sports medicine ; Transplants & implants</subject><ispartof>The American journal of sports medicine, 2009-07, Vol.37 (7), p.1334</ispartof><rights>2009 The Author(s)</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c1065-ee7d30a60db22df47ebc19bfaf6925c0e8b4c42b901c111c3748e0317fcf6f863</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Crawford, Dennis C</creatorcontrib><creatorcontrib>Heveran, Chelsea M</creatorcontrib><creatorcontrib>Dilworth Cannon, W</creatorcontrib><creatorcontrib>Li Foong Foo</creatorcontrib><creatorcontrib>Potter, Hollis G</creatorcontrib><title>An Autologous Cartilage Tissue Implant NeoCart for Treatment of Grade III Chondral Injury to the Distal Femur</title><title>The American journal of sports medicine</title><description>Background: The healing potential of damaged articular cartilage is limited. The NeoCart is a tissue-engineered collagen matrix seeded
with autogenous chondrocytes designed for the repair of hyaline articular cartilage.
Hypothesis: The NeoCart implant is well tolerated in the human knee.
Study Design: Case series; Level of evidence, 4.
Methods: Eight patients (treatment group) with full-thickness cartilage injury were treated with the NeoCart and evaluated prospectively.
Autogenous chondrocytes provided by arthroscopic biopsy were seeded into a 3-dimensional type I collagen scaffold. The seeded
scaffold was subjected to a tissue-engineering protocol including treatment with a bioreactor. Implantation of the prepared
cartilage tissue patch was performed via miniarthrotomy and secured with a collagen bioadhesive. Evaluations through 24 months
postoperatively included the subjective International Knee Documentation Committee questionnaire, visual analog scale, range
of motion, and cartilage-sensitive magnetic resonance imaging (MRI), including quantitative T2 mapping.
Results: Pain scores after NeoCart implantation were significantly lower than baseline at 12 and 24 months after the procedure ( P < .05). Improved function and motion were also noted at 24 months. Six patients had 67% to 100% defect fill at 24 months
with MRI evaluation. One patient had moderate (33%â66%) defect fill, and another patient had poor (less than 33%) defect fill.
Partial stratification of T2 values was observed for 2 patients at 12 months and 4 patients at 24 months. No patients experienced
arthrofibrosis or implant hypertrophy.
Conclusion: Pain was significantly reduced 12 and 24 months after NeoCart treatment. Trends toward improved function and motion were
observed 24 months after implantation. The MRI indicated implant stability and peripheral integration, defect fill without
overgrowth, progressive maturation, and more organized cartilage formation.</description><subject>Cartilage</subject><subject>Collagen</subject><subject>Defects</subject><subject>Knee</subject><subject>NMR</subject><subject>Nuclear magnetic resonance</subject><subject>Patients</subject><subject>Sports medicine</subject><subject>Transplants & implants</subject><issn>0363-5465</issn><issn>1552-3365</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNotjc9LwzAcxYMobk7vHgOCt2q-TZqkxzGdFoZe5rmkbbK2tM3MD8T_3o55evA-H95D6B7IE4AQz4RymjGekZxSSgAu0BKyLE0o5dklWp5wcuILdON9TwgBweU1WkDOmCRMLtG4nvA6BjvYg40eb5QL3aAOGu8776PGxXgc1BTwh7Ynho11eO-0CqOeW2vwm1PNrBUF3rR2apwacDH10f3iYHFoNX7pfJjLrR6ju0VXRg1e3_3nCn1tX_eb92T3-VZs1rukBsKzRGvRUKI4aao0bQwTuqohr4wyPE-zmmhZsZqlVU6gBoCaCiY1oSBMbbiRnK7Qw3n36Ox31D6UvY1umi9LyIlMBWcym63Hs9V2h_anc7r0oxqGY6xoqXpPRSlKoJTRPwGVaVw</recordid><startdate>20090701</startdate><enddate>20090701</enddate><creator>Crawford, Dennis C</creator><creator>Heveran, Chelsea M</creator><creator>Dilworth Cannon, W</creator><creator>Li Foong Foo</creator><creator>Potter, Hollis G</creator><general>American Orthopaedic Society for Sports Medicine</general><general>Sage Publications Ltd</general><scope>7TS</scope><scope>K9.</scope><scope>NAPCQ</scope><scope>U9A</scope></search><sort><creationdate>20090701</creationdate><title>An Autologous Cartilage Tissue Implant NeoCart for Treatment of Grade III Chondral Injury to the Distal Femur</title><author>Crawford, Dennis C ; Heveran, Chelsea M ; Dilworth Cannon, W ; Li Foong Foo ; Potter, Hollis G</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1065-ee7d30a60db22df47ebc19bfaf6925c0e8b4c42b901c111c3748e0317fcf6f863</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Cartilage</topic><topic>Collagen</topic><topic>Defects</topic><topic>Knee</topic><topic>NMR</topic><topic>Nuclear magnetic resonance</topic><topic>Patients</topic><topic>Sports medicine</topic><topic>Transplants & implants</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Crawford, Dennis C</creatorcontrib><creatorcontrib>Heveran, Chelsea M</creatorcontrib><creatorcontrib>Dilworth Cannon, W</creatorcontrib><creatorcontrib>Li Foong Foo</creatorcontrib><creatorcontrib>Potter, Hollis G</creatorcontrib><collection>Physical Education Index</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Nursing & Allied Health Premium</collection><jtitle>The American journal of sports medicine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Crawford, Dennis C</au><au>Heveran, Chelsea M</au><au>Dilworth Cannon, W</au><au>Li Foong Foo</au><au>Potter, Hollis G</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>An Autologous Cartilage Tissue Implant NeoCart for Treatment of Grade III Chondral Injury to the Distal Femur</atitle><jtitle>The American journal of sports medicine</jtitle><date>2009-07-01</date><risdate>2009</risdate><volume>37</volume><issue>7</issue><spage>1334</spage><pages>1334-</pages><issn>0363-5465</issn><eissn>1552-3365</eissn><abstract>Background: The healing potential of damaged articular cartilage is limited. The NeoCart is a tissue-engineered collagen matrix seeded
with autogenous chondrocytes designed for the repair of hyaline articular cartilage.
Hypothesis: The NeoCart implant is well tolerated in the human knee.
Study Design: Case series; Level of evidence, 4.
Methods: Eight patients (treatment group) with full-thickness cartilage injury were treated with the NeoCart and evaluated prospectively.
Autogenous chondrocytes provided by arthroscopic biopsy were seeded into a 3-dimensional type I collagen scaffold. The seeded
scaffold was subjected to a tissue-engineering protocol including treatment with a bioreactor. Implantation of the prepared
cartilage tissue patch was performed via miniarthrotomy and secured with a collagen bioadhesive. Evaluations through 24 months
postoperatively included the subjective International Knee Documentation Committee questionnaire, visual analog scale, range
of motion, and cartilage-sensitive magnetic resonance imaging (MRI), including quantitative T2 mapping.
Results: Pain scores after NeoCart implantation were significantly lower than baseline at 12 and 24 months after the procedure ( P < .05). Improved function and motion were also noted at 24 months. Six patients had 67% to 100% defect fill at 24 months
with MRI evaluation. One patient had moderate (33%â66%) defect fill, and another patient had poor (less than 33%) defect fill.
Partial stratification of T2 values was observed for 2 patients at 12 months and 4 patients at 24 months. No patients experienced
arthrofibrosis or implant hypertrophy.
Conclusion: Pain was significantly reduced 12 and 24 months after NeoCart treatment. Trends toward improved function and motion were
observed 24 months after implantation. The MRI indicated implant stability and peripheral integration, defect fill without
overgrowth, progressive maturation, and more organized cartilage formation.</abstract><cop>Baltimore</cop><pub>American Orthopaedic Society for Sports Medicine</pub><pmid>19448048</pmid><doi>10.1177/0363546509333011</doi></addata></record> |
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| identifier | ISSN: 0363-5465 |
| ispartof | The American journal of sports medicine, 2009-07, Vol.37 (7), p.1334 |
| issn | 0363-5465 1552-3365 |
| language | eng |
| recordid | cdi_proquest_journals_1908276485 |
| source | SAGE Complete; Alma/SFX Local Collection |
| subjects | Cartilage Collagen Defects Knee NMR Nuclear magnetic resonance Patients Sports medicine Transplants & implants |
| title | An Autologous Cartilage Tissue Implant NeoCart for Treatment of Grade III Chondral Injury to the Distal Femur |
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