Prediction of flexor tendon graft diameter in reconstruction of the anterior cruciate ligament by means of magnetic resonance imaging
ABSTRACT OBJECTIVE: To evaluate the diameter of the flexor tendons in preoperative magnetic resonance imaging (MRI) examinations and compare this with the diameter of the graft obtained intraoperatively. METHODS: This was a retrospective longitudinal epidemiological study. Forty-four patients were eligible for the study and their MRI examinations and surgical data were evaluated. The tendons were measured on MRI across their largest diameter in the axial plane, using the medial epicondyle of the femur as the slice level. In the surgery, routine graft preparation was performed, consisting of folding the gracilis and semitendinosus tendons to form a four-strand graft. Its measurement was recorded. RESULTS: To evaluate the association between the variables, Pearson's correlation coefficient was estimated. A significant correlation was found between the measurements of the gracilis and semitendinosus tendons and the final diameter of the graft (p < 0.001). A ROC curve was fitted to the sum of the tendon diameters in order to determine a cutoff point associated with the graft diameter (≤8 mm or >8 mm). If the sum was greater than 5.28 mm, the chance of obtaining a graft larger than 8 mm would be 75%. CONCLUSION: Measurement of the diameters of the gracilis and semitendinosus tendons through a preoperative MRI examination is a simple and effective way to predict the final size of the graft to be used in ACL reconstruction surgery.
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Sociedade Brasileira de Ortopedia e Traumatologia
2016
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oai:scielo:S0102-361620160004004052016-08-23Prediction of flexor tendon graft diameter in reconstruction of the anterior cruciate ligament by means of magnetic resonance imagingKupczik,FabianoTauscheck,Luiz Otávio BombonattoSchiavon,Marlus Eduardo GuniaSbrissia,BrunoErnlund,Lucio Sergio RochaAlves,Ricardo Augusto Lass Anterior cruciate ligament Anterior cruciate ligament reconstruction Magnetic resonance spectroscopy Orthopedic procedures ABSTRACT OBJECTIVE: To evaluate the diameter of the flexor tendons in preoperative magnetic resonance imaging (MRI) examinations and compare this with the diameter of the graft obtained intraoperatively. METHODS: This was a retrospective longitudinal epidemiological study. Forty-four patients were eligible for the study and their MRI examinations and surgical data were evaluated. The tendons were measured on MRI across their largest diameter in the axial plane, using the medial epicondyle of the femur as the slice level. In the surgery, routine graft preparation was performed, consisting of folding the gracilis and semitendinosus tendons to form a four-strand graft. Its measurement was recorded. RESULTS: To evaluate the association between the variables, Pearson's correlation coefficient was estimated. A significant correlation was found between the measurements of the gracilis and semitendinosus tendons and the final diameter of the graft (p < 0.001). A ROC curve was fitted to the sum of the tendon diameters in order to determine a cutoff point associated with the graft diameter (≤8 mm or >8 mm). If the sum was greater than 5.28 mm, the chance of obtaining a graft larger than 8 mm would be 75%. CONCLUSION: Measurement of the diameters of the gracilis and semitendinosus tendons through a preoperative MRI examination is a simple and effective way to predict the final size of the graft to be used in ACL reconstruction surgery.info:eu-repo/semantics/openAccessSociedade Brasileira de Ortopedia e TraumatologiaRevista Brasileira de Ortopedia v.51 n.4 20162016-08-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162016000400405en10.1016/j.rboe.2016.06.002 |
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Kupczik,Fabiano Tauscheck,Luiz Otávio Bombonatto Schiavon,Marlus Eduardo Gunia Sbrissia,Bruno Ernlund,Lucio Sergio Rocha Alves,Ricardo Augusto Lass |
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Kupczik,Fabiano Tauscheck,Luiz Otávio Bombonatto Schiavon,Marlus Eduardo Gunia Sbrissia,Bruno Ernlund,Lucio Sergio Rocha Alves,Ricardo Augusto Lass Prediction of flexor tendon graft diameter in reconstruction of the anterior cruciate ligament by means of magnetic resonance imaging |
author_facet |
Kupczik,Fabiano Tauscheck,Luiz Otávio Bombonatto Schiavon,Marlus Eduardo Gunia Sbrissia,Bruno Ernlund,Lucio Sergio Rocha Alves,Ricardo Augusto Lass |
author_sort |
Kupczik,Fabiano |
title |
Prediction of flexor tendon graft diameter in reconstruction of the anterior cruciate ligament by means of magnetic resonance imaging |
title_short |
Prediction of flexor tendon graft diameter in reconstruction of the anterior cruciate ligament by means of magnetic resonance imaging |
title_full |
Prediction of flexor tendon graft diameter in reconstruction of the anterior cruciate ligament by means of magnetic resonance imaging |
title_fullStr |
Prediction of flexor tendon graft diameter in reconstruction of the anterior cruciate ligament by means of magnetic resonance imaging |
title_full_unstemmed |
Prediction of flexor tendon graft diameter in reconstruction of the anterior cruciate ligament by means of magnetic resonance imaging |
title_sort |
prediction of flexor tendon graft diameter in reconstruction of the anterior cruciate ligament by means of magnetic resonance imaging |
description |
ABSTRACT OBJECTIVE: To evaluate the diameter of the flexor tendons in preoperative magnetic resonance imaging (MRI) examinations and compare this with the diameter of the graft obtained intraoperatively. METHODS: This was a retrospective longitudinal epidemiological study. Forty-four patients were eligible for the study and their MRI examinations and surgical data were evaluated. The tendons were measured on MRI across their largest diameter in the axial plane, using the medial epicondyle of the femur as the slice level. In the surgery, routine graft preparation was performed, consisting of folding the gracilis and semitendinosus tendons to form a four-strand graft. Its measurement was recorded. RESULTS: To evaluate the association between the variables, Pearson's correlation coefficient was estimated. A significant correlation was found between the measurements of the gracilis and semitendinosus tendons and the final diameter of the graft (p < 0.001). A ROC curve was fitted to the sum of the tendon diameters in order to determine a cutoff point associated with the graft diameter (≤8 mm or >8 mm). If the sum was greater than 5.28 mm, the chance of obtaining a graft larger than 8 mm would be 75%. CONCLUSION: Measurement of the diameters of the gracilis and semitendinosus tendons through a preoperative MRI examination is a simple and effective way to predict the final size of the graft to be used in ACL reconstruction surgery. |
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Sociedade Brasileira de Ortopedia e Traumatologia |
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2016 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162016000400405 |
work_keys_str_mv |
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