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Autologous Osteochondral Transplantation in Full-thickness Patella Chondral Lesion: A Case Series

PURPOSE: Autologous osteochondral transplantation (AOT) in the focal cartilage lesion of the patella has been reported with less successful results compared with other sites. The purposes were to investigate the clinical outcomes of AOT for focal patellar chondral lesion without patellofemoral insta...

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Autores principales: Yonetani, Yasukazu, Tanaka, Yoshinari, Kanamoto, Takashi, Nakamura, Norimasa, Nakata, Ken, Horibe, Shuji
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Indian Orthopaedic Research Group 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6588144/
https://www.ncbi.nlm.nih.gov/pubmed/31245320
http://dx.doi.org/10.13107/jocr.2250-0685.1306
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author Yonetani, Yasukazu
Tanaka, Yoshinari
Kanamoto, Takashi
Nakamura, Norimasa
Nakata, Ken
Horibe, Shuji
author_facet Yonetani, Yasukazu
Tanaka, Yoshinari
Kanamoto, Takashi
Nakamura, Norimasa
Nakata, Ken
Horibe, Shuji
author_sort Yonetani, Yasukazu
collection PubMed
description PURPOSE: Autologous osteochondral transplantation (AOT) in the focal cartilage lesion of the patella has been reported with less successful results compared with other sites. The purposes were to investigate the clinical outcomes of AOT for focal patellar chondral lesion without patellofemoral instability. METHODS: Between 2001 and 2007, six patients (five males and one female) with a focal patellar cartilage lesion without patellofemoral malalignment and instability were treated with AOT. The mean age was 38 (27–51) years. Intraoperatively, the size and location of lesion were assessed by international cartilage repair society classification. Lysholm score was investigated preoperatively, at 6 months, 1- and 2-year, and final follow-up. Mean follow-up period was 51 months (24–101). Transplanted grafts were evaluated by magnetic resonance imaging (MRI) and second-look arthroscopy. RESULTS: The mean size was 133mm2(78–225). All six cases improved at final follow-up (Lysholm score 79–100). Although immediate pain relief obtained in four cases, severe pain was persistent in remaining two cases during the 1styear and gradually relieved by 2 years following surgery. The size of these two cases was significantly larger (over 170 mm2) than that of four cases (100 mm2 in average) (P<0.05), and their locations were apart from center of the patella inspite of four cases localized centrally (P<0.05). Repaired cartilage did not show any difference by MRI and arthroscopically. CONCLUSION: AOT in focal patellar chondral lesions without patellofemoral malalignment showed excellent results. In cases of large off-centeredlesions, however, it took longer for pain relief following AOT.
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spelling pubmed-65881442019-06-26 Autologous Osteochondral Transplantation in Full-thickness Patella Chondral Lesion: A Case Series Yonetani, Yasukazu Tanaka, Yoshinari Kanamoto, Takashi Nakamura, Norimasa Nakata, Ken Horibe, Shuji J Orthop Case Rep Case Report PURPOSE: Autologous osteochondral transplantation (AOT) in the focal cartilage lesion of the patella has been reported with less successful results compared with other sites. The purposes were to investigate the clinical outcomes of AOT for focal patellar chondral lesion without patellofemoral instability. METHODS: Between 2001 and 2007, six patients (five males and one female) with a focal patellar cartilage lesion without patellofemoral malalignment and instability were treated with AOT. The mean age was 38 (27–51) years. Intraoperatively, the size and location of lesion were assessed by international cartilage repair society classification. Lysholm score was investigated preoperatively, at 6 months, 1- and 2-year, and final follow-up. Mean follow-up period was 51 months (24–101). Transplanted grafts were evaluated by magnetic resonance imaging (MRI) and second-look arthroscopy. RESULTS: The mean size was 133mm2(78–225). All six cases improved at final follow-up (Lysholm score 79–100). Although immediate pain relief obtained in four cases, severe pain was persistent in remaining two cases during the 1styear and gradually relieved by 2 years following surgery. The size of these two cases was significantly larger (over 170 mm2) than that of four cases (100 mm2 in average) (P<0.05), and their locations were apart from center of the patella inspite of four cases localized centrally (P<0.05). Repaired cartilage did not show any difference by MRI and arthroscopically. CONCLUSION: AOT in focal patellar chondral lesions without patellofemoral malalignment showed excellent results. In cases of large off-centeredlesions, however, it took longer for pain relief following AOT. Indian Orthopaedic Research Group 2019 /pmc/articles/PMC6588144/ /pubmed/31245320 http://dx.doi.org/10.13107/jocr.2250-0685.1306 Text en Copyright: © Indian Orthopaedic Research Group http://creativecommons.org/licenses/by-nc/3.0 This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Case Report
Yonetani, Yasukazu
Tanaka, Yoshinari
Kanamoto, Takashi
Nakamura, Norimasa
Nakata, Ken
Horibe, Shuji
Autologous Osteochondral Transplantation in Full-thickness Patella Chondral Lesion: A Case Series
title Autologous Osteochondral Transplantation in Full-thickness Patella Chondral Lesion: A Case Series
title_full Autologous Osteochondral Transplantation in Full-thickness Patella Chondral Lesion: A Case Series
title_fullStr Autologous Osteochondral Transplantation in Full-thickness Patella Chondral Lesion: A Case Series
title_full_unstemmed Autologous Osteochondral Transplantation in Full-thickness Patella Chondral Lesion: A Case Series
title_short Autologous Osteochondral Transplantation in Full-thickness Patella Chondral Lesion: A Case Series
title_sort autologous osteochondral transplantation in full-thickness patella chondral lesion: a case series
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6588144/
https://www.ncbi.nlm.nih.gov/pubmed/31245320
http://dx.doi.org/10.13107/jocr.2250-0685.1306
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