Manejo quirúrgico de la luxación patelofemoral usando injerto autólogo del tendón cuadricipital para la reconstrucción del ligamento patelofemoral medial. Resultados clínicos y funcionales de una cohorte retrospectiva de pacientes pediátricos.

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Title: Manejo quirúrgico de la luxación patelofemoral usando injerto autólogo del tendón cuadricipital para la reconstrucción del ligamento patelofemoral medial. Resultados clínicos y funcionales de una cohorte retrospectiva de pacientes pediátricos.
Alternate Title: Surgical management of patellofemoral dislocation using an autologous quadriceps tendon graft for medial patellofemoral ligament reconstruction. Clinical and functional outcomes in a retrospective cohort of pediatric patients.
Authors: Pérez-Abdala, J. I.1 ignacio.perez@hospitalitaliano.org.ar, Semeschenko, D.1, Halliburton, C.1, Bosio, S.1, Puigdevall, M.1
Source: Acta Ortopédica Mexicana. Jul/Aug2025, Vol. 39 Issue 4, p220-230. 11p.
Subjects: QUADRICEPS tendon, SPORTS re-entry, STATISTICAL significance, CHILD patients, WILCOXON signed-rank test
Abstract (English): Introduction: medial patellofemoral ligament (MPFL) reconstruction using an autologous quadriceps tendon graft to treat patellofemoral dislocation in the pediatric population is a surgical alternative that may offer advantages compared to other types of grafts. We assessed clinical and functional outcomes, rate of return to sport, and complications in a cohort of pediatric patients. Material and methods: retrospective and descriptive cohort study. Pediatric patients with recurrent patellofemoral dislocation treated with MPFL reconstruction using an autologous quadriceps tendon graft, with or without an additional procedure, were included. A minimum follow-up of two years was required. Patients with congenital patellofemoral dislocation, previous surgeries, connective tissue disorders, and medial patellar dislocation were excluded. We measured the Kujala functional score, its minimally clinically important difference (MCID), and the Tegner activity scale. The difference between preoperative and postoperative Kujala and Tegner scores was analyzed using the Wilcoxon signed-rank test. Results: we selected nine patients (12 knees) with a mean age of 16.5 years. The median preoperative Kujala score was 56 with an interquartile range (IQR) of 51-65, and 99 (IQR 95-100) postoperatively. A MCID and a statistically significant difference were achieved (p < 0.01). The median preoperative Tegner score was 6 (IQR 6-8.5) and 5.5 (IQR 4-7) postoperatively, with this difference being statistically significant (p = 0.02). The average time to return to sports was 6.5 months. Four complications were found. Conclusions: MPFL reconstruction using autologous quadriceps tendon graft in pediatric patients is a reliable option with good clinical and functional outcomes. [ABSTRACT FROM AUTHOR]
Abstract (Spanish): Introducción: la reconstrucción del ligamento patelofemoral medial (LPFM) con injerto autólogo de tendón cuadricipital (TC) en el tratamiento de la luxación patelofemoral en población pediátrica es una alternativa quirúrgica con algunas ventajas respecto otros tipos de injerto. Se evalúan los resultados clínicos, funcionales, el retorno al deporte y las complicaciones de una cohorte de pacientes pediátricos. Material y métodos: estudio de cohorte retrospectivo y descriptivo. Se incluyeron los pacientes pediátricos con luxación recidivante patelofemoral tratados con reconstrucción del LPFM con injerto autólogo de tendón cuadricipital, con o sin otro procedimiento asociado, con un seguimiento mínimo de dos años. Se excluyeron los casos con luxación patelofemoral congénita, cirugías previas, enfermedad del tejido conectivo y luxación patelar medial. Se calculó la escala funcional de Kujala, con su diferencia clínica mínimamente importante (DCMI) y la escala de actividad de Tegner. Se analizó la diferencia entre el pre y postoperatorio de la escala de Kujala y Tegner usando la prueba Wilcoxon signed-rank, con un valor estadístico significativo p < 0.05. Resultados: se incluyeron nueve pacientes (12 rodillas) con un promedio de edad de 16.5 años. La mediana de la escala de Kujala preoperatoria fue de 56 con un rango intercuartílico (RIC) 51-65 y de 99 (RIC 95-100) en el postoperatorio, se obtuvo una DCMI y una diferencia estadísticamente significativa (p < 0.01). La mediana de la escala de Tegner preoperatoria fue de 6 (RIC 6-8.5) y de 5.5 (RIC 4-7) en el postoperatorio, siendo esta diferencia estadísticamente significativa (p = 0.02). El tiempo promedio de retorno deportivo fue a los 6.5 meses. Hubo cuatro complicaciones. Conclusiones: la reconstrucción del LPFM con injerto autólogo de tendón cuadricipital en pacientes pediátricos es una alternativa reproducible que mostró buenos resultados clínicos y funcionales. [ABSTRACT FROM AUTHOR]
Copyright of Acta Ortopédica Mexicana is the property of Sociedad Mexicana de Ortopedia, AC and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Manejo quir&#250;rgico de la luxaci&#243;n patelofemoral usando injerto aut&#243;logo del tend&#243;n cuadricipital para la reconstrucci&#243;n del ligamento patelofemoral medial. Resultados cl&#237;nicos y funcionales de una cohorte retrospectiva de pacientes pedi&#225;tricos.
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  Data: Surgical management of patellofemoral dislocation using an autologous quadriceps tendon graft for medial patellofemoral ligament reconstruction. Clinical and functional outcomes in a retrospective cohort of pediatric patients.
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  Data: &lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22QUADRICEPS+tendon%22&quot;&gt;QUADRICEPS tendon&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22SPORTS+re-entry%22&quot;&gt;SPORTS re-entry&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22STATISTICAL+significance%22&quot;&gt;STATISTICAL significance&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22CHILD+patients%22&quot;&gt;CHILD patients&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22WILCOXON+signed-rank+test%22&quot;&gt;WILCOXON signed-rank test&lt;/searchLink&gt;
– Name: Abstract
  Label: Abstract (English)
  Group: Ab
  Data: Introduction: medial patellofemoral ligament (MPFL) reconstruction using an autologous quadriceps tendon graft to treat patellofemoral dislocation in the pediatric population is a surgical alternative that may offer advantages compared to other types of grafts. We assessed clinical and functional outcomes, rate of return to sport, and complications in a cohort of pediatric patients. Material and methods: retrospective and descriptive cohort study. Pediatric patients with recurrent patellofemoral dislocation treated with MPFL reconstruction using an autologous quadriceps tendon graft, with or without an additional procedure, were included. A minimum follow-up of two years was required. Patients with congenital patellofemoral dislocation, previous surgeries, connective tissue disorders, and medial patellar dislocation were excluded. We measured the Kujala functional score, its minimally clinically important difference (MCID), and the Tegner activity scale. The difference between preoperative and postoperative Kujala and Tegner scores was analyzed using the Wilcoxon signed-rank test. Results: we selected nine patients (12 knees) with a mean age of 16.5 years. The median preoperative Kujala score was 56 with an interquartile range (IQR) of 51-65, and 99 (IQR 95-100) postoperatively. A MCID and a statistically significant difference were achieved (p &lt; 0.01). The median preoperative Tegner score was 6 (IQR 6-8.5) and 5.5 (IQR 4-7) postoperatively, with this difference being statistically significant (p = 0.02). The average time to return to sports was 6.5 months. Four complications were found. Conclusions: MPFL reconstruction using autologous quadriceps tendon graft in pediatric patients is a reliable option with good clinical and functional outcomes. [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label: Abstract (Spanish)
  Group: Ab
  Data: Introducci&#243;n: la reconstrucci&#243;n del ligamento patelofemoral medial (LPFM) con injerto aut&#243;logo de tend&#243;n cuadricipital (TC) en el tratamiento de la luxaci&#243;n patelofemoral en poblaci&#243;n pedi&#225;trica es una alternativa quir&#250;rgica con algunas ventajas respecto otros tipos de injerto. Se eval&#250;an los resultados cl&#237;nicos, funcionales, el retorno al deporte y las complicaciones de una cohorte de pacientes pedi&#225;tricos. Material y m&#233;todos: estudio de cohorte retrospectivo y descriptivo. Se incluyeron los pacientes pedi&#225;tricos con luxaci&#243;n recidivante patelofemoral tratados con reconstrucci&#243;n del LPFM con injerto aut&#243;logo de tend&#243;n cuadricipital, con o sin otro procedimiento asociado, con un seguimiento m&#237;nimo de dos a&#241;os. Se excluyeron los casos con luxaci&#243;n patelofemoral cong&#233;nita, cirug&#237;as previas, enfermedad del tejido conectivo y luxaci&#243;n patelar medial. Se calcul&#243; la escala funcional de Kujala, con su diferencia cl&#237;nica m&#237;nimamente importante (DCMI) y la escala de actividad de Tegner. Se analiz&#243; la diferencia entre el pre y postoperatorio de la escala de Kujala y Tegner usando la prueba Wilcoxon signed-rank, con un valor estad&#237;stico significativo p &lt; 0.05. Resultados: se incluyeron nueve pacientes (12 rodillas) con un promedio de edad de 16.5 a&#241;os. La mediana de la escala de Kujala preoperatoria fue de 56 con un rango intercuart&#237;lico (RIC) 51-65 y de 99 (RIC 95-100) en el postoperatorio, se obtuvo una DCMI y una diferencia estad&#237;sticamente significativa (p &lt; 0.01). La mediana de la escala de Tegner preoperatoria fue de 6 (RIC 6-8.5) y de 5.5 (RIC 4-7) en el postoperatorio, siendo esta diferencia estad&#237;sticamente significativa (p = 0.02). El tiempo promedio de retorno deportivo fue a los 6.5 meses. Hubo cuatro complicaciones. Conclusiones: la reconstrucci&#243;n del LPFM con injerto aut&#243;logo de tend&#243;n cuadricipital en pacientes pedi&#225;tricos es una alternativa reproducible que mostr&#243; buenos resultados cl&#237;nicos y funcionales. [ABSTRACT FROM AUTHOR]
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  Data: &lt;i&gt;Copyright of Acta Ortop&#233;dica Mexicana is the property of Sociedad Mexicana de Ortopedia, AC and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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