Longitud muscular, dolor y funcionalidad en adultos jóvenes con disfunción de la articulación sacroilíaca

Introducción: La disfunción de la articulación sacroilíaca es un trastorno patomecánico, en la cual se pierde la estabilidad y se altera el funcionamiento de la cintura pélvica; también se modifica la capacidad de trasmitir y disipar fuerzas desde los miembros inferiores hacia la columna y viceversa. El acortamiento de músculos como el dorsal ancho, isquiotibiales y espinales lumbares puede alterar el control motor y generar lumbalgia. Objetivo: Evaluar la longitud muscular del dorsal ancho, los isquiotibiales, los espinales lumbares, el dolor y la funcionalidad en adultos jóvenes a partir de la comparación de tres grupos de estudio: dolor lumbar, disfunción de la articulación sacroilíaca y control. Métodos: Se realizó un estudio de corte transversal. Se incluyeron 114 personas de ambos sexos. La longitud muscular se evaluó a través de pruebas específicas para cada músculo. La escala visual análoga y el Oswestry se utilizaron para medir el dolor y la funcionalidad, respectivamente. Las diferencias de las variables entre los grupos de estudio se calcularon con la prueba de Chi2. Resultados: No se observaron diferencias en cuanto a longitud muscular en los grupos de estudio. El grupo con disfunción de la articulación sacroilíaca presentó más personas con dolor y limitación funcional moderada-severa. Conclusiones: Las retracciones del dorsal ancho, los isquiotibiales y los espinales lumbares no se relacionaron con el dolor lumbar o la disfunción de la articulación sacroilíaca; sin embargo, los adultos jóvenes de este grupo presentaron más molestias y discapacidad.

Introduction: Sacroiliac joint dysfunction is a pathomechanical alteration, in which stability is lost and the functioning of the pelvic girdle is altered; the ability to transmit and dissipate forces from the lower limbs to the spine and vice versa is also modified. The shortening of muscles such as the latissimus dorsi, hamstrings and lumbar spinal muscles can alter motor control and generate low back pain. Objective: To evaluate the muscle length of latissimus dorsi, hamstrings and lumbar spinal muscles, pain and functionality in young adults by comparing three study groups: pain, sacroiliac joint dysfunction and control. Methods: A cross-sectional study was carried out. A total of 114 subjects of both sexes were included. Muscle length was assessed through muscle-specific tests. The Visual Analog Scale and the Oswestry were used to measure pain and functionality, respectively. Differences in variables between study groups were calculated with the Chi2 test. Results: No differences in muscle length were observed in the study groups. The group with sacroiliac joint dysfunction presented more individuals with pain and moderate-severe functional limitation. Conclusions: Latissimus dorsi, hamstring and lumbar spinal retractions were not related to low back pain or sacroiliac joint dysfunction; however, young adults in this group presented more discomfort and disability.

Curso Temporal de los Efectos Agudos de una Sesión de Estiramiento Muscular en Sujetos Jóvenes y Sanos / Time Course of the Acute Effects of a Muscle Stretching Session in Young and Healthy Subjects

Introducción. La duración de los efectos agudos del estiramiento muscular y su relación con el volumen total de estiramiento es un tema controversial. Método. Se distribuyeron aleatoriamente 29 varones jóvenes y deportistas en tres grupos: Control, "protocolo corto" (5 estiramientos x 30' segundos) y "protocolo largo" (10 estiramientos x 30 segundos). Para medir el efecto se usó el Active Knee Extension Test en forma previa y posterior a los 0, 3, 7, 12, 18 y 25 minutos. Cada medición se grabó en video, y se identificó el rango máximo de estiramiento con el software Kinovea. Se realizó comparación pre y postintervención entre grupos e inter grupo. Se incorporó análisis post hoc en medidas repetidas. Resultados. No hubo diferencias en la medición preintervención entre los grupos (P=0,266). Ambos protocolos tuvieron cambios significativos (P<0,007) respecto del grupo control (P=0,65). Todas las mediciones postintervención comparadas con la preintervención presentan diferencias en el protocolo corto (P≤0,018) y largo (P≤0,009). Hubo diferencia entre el grupo control con el de protocolo corto (P≤0,014) y control con protocolo largo (P≤0,004) para todas las mediciones, y una diferencia entre ambos protocolos en el post inmediato (P=0,033) pero no para las mediciones posteriores (P≤0,139). Conclusión. Un protocolo de 150 segundos de estiramiento estático en isquiotibiales en varones asintomáticos jóvenes, presenta efectos por al menos 25 minutos. Al duplicar a 300 segundos sólo presenta diferencia en la medición inmediatamente posterior. Por lo tanto, ambos protocolos son igualmente efectivos, pero el protocolo corto es más eficiente.

Background. The duration of the acute effects of muscle stretching and its relationship with the total volume of stretching is a controversial issue. Methods. 29 young male athletes were randomly distributed into three groups: control, "short protocol" (5 stretches x 30'') and "long protocol" (10 stretches x 30''). To measure the effect, the Active Knee Extension Test was used before and after 0, 3', 7', 12', 18' and 25'. Each measurement was videotaped, and the maximum range of stretch was identified using the Kinovea software. A pre-post intervention comparison was made between groups and inter groups. Post hoc analysis was incorporated into repeated measures. Results. There were no differences in the pre-intervention measurement between the groups (P=0.266). Both protocols had significant changes (P<0.007) compared to the control group (P=0.65). All post-intervention measurements compared to pre-intervention present differences in the short (P≤0.018) and long (P≤0.009) protocol. There was a difference between the control group with the short protocol (P≤0.014) and the control group with the long protocol (P≤0.004) for all measurements, and a difference between both protocols in the immediate post (P=0.033) but not for the measurements. subsequent measurements (P≤0.139). Conclusion. A protocol of 150'' of static stretching in hamstrings in asymptomatic young men, presents effects for at least 25'. When doubling at 300'', it only presents a difference in the immediately subsequent measurement. Therefore, both protocols are equally effective, but the short protocol is more efficient.

Preoperative prediction of autologous hamstring graft diameter in anterior cruciate ligament reconstruction. / Predicción preoperatoria del diámetro de la plastia autóloga de isquiotibiales en reconstrucción de ligamento cruzado anterior.

BACKGROUND AND OBJECTIVE: Currently, there is no stablished pre-operative model that helps the orthopaedic surgeon predict the final graft diameter in anterior cruciate ligament reconstruction (ACLR). The purpose of this study was to determine whether there is a correlation between semitendinosus (ST) and gracilis (GT) cross-sectional area (CSA) evaluated pre-operatively in mm2 using magnetic resonance imaging (MRI) and the final intra-operative ST-GT autograft diameter in mm2. METHODS: A retrospective study was designed, 89 patients undergoing ACLR with hamstring autograft participated. We analysed ST-CSA (mm2) and GT-CSA (mm2) using pre-operative MRI, intra-operative autograft diameter, age, sex, side of the injury, weight, height and body mass index (BMI). RESULTS: A moderate-strong correlation was identified between final autograft diameter and ST-GT CSA in MRI (Pearson correlation coefficient .6911 P<.001). We observed that, if the combination of ST-CSA and GT-STA is at least 19mm2, the probability of obtaining an autograft with a diameter greater than or equal to 8mm is 91.8% or more. The ROC curve analysis demonstrated, in this model, that this predictive method on MRI correctly discriminates in over 95.6% of cases between achieving or otherwise an autograft greater than or equal to 8mm during surgery. Intra and interobserver concordance of the MRI measurements were excellent, as shown in the intraobserver intraclass correlation coefficient (CCI) of .79 and the interobserver CCI of .84 and .77 for the ST and GT respectively. CONCLUSIONS: Preoperative determinations of ST-CSA and GT-CSA (mm2) using MRI correlate with the final autograft diameter. This method represents a reliable and reproducible model to predict the hamstring autograft diameter in ACLR. LEVEL OF EVIDENCE: Retrospective cohort study, level IV. CLINICAL RELEVANCE: A review of the available literature reveals a higher risk of ACL failure or re-rupture if the graft is smaller than 8mm in diameter. Despite being an important factor there is no established pre-operative model that predicts the final graft diameter. Knowing beforehand the possibilities of obtaining a hamstring autograft with a diameter greater than or equal to 8mm would help the orthopaedic surgeon to better plan the surgery and to anticipate the need for other graft options (such as bone-patellar-tendon-bone autograft or allografts, amongst other alternatives).

Can we predict the graft diameter for autologous hamstring in anterior cruciate ligament reconstruction? / ¿Podemos predecir el tamaño de la plastia de los isquiotibiales para la reconstrucción del ligamento cruzado anterior mediante resonancia magnética?

To achieve in the reconstruction of the anterior cruciate ligament a graft with strength, tension and low comorbidity is fundamental. An emerging concept is that a graft diameter of less than 7mm carries a greater risk of re-rupture and instability. Consequently, different methods are being sought to predict intra-surgical size. The objective is to predict the size of the hamstring graft by measuring the area of the semitendinous and gracilis tendon with magnetic resonance imaging (MRI). METHODOLOGY: We carried out an observational retrospective study of 56 patients. They underwent anterior cruciate ligament reconstruction with 4-GST hamstring graft. The parameters evaluated were anthropometric data, hamstring graft diameter, area of gracilis and semitendinosus tendon in MRI. The measurements were made by three independent evaluators. RESULTS: The mean diameter of the intrasurgical graft was 8.46mm, in the MRI the area of the gracilis was 8,875mm and the semitendinosus area was 13,068mm. Their mean was 22.12 for the automatic measurement and 21.53 for the manual measurement. The interobserver correlation was regular for the automatic measurement (ICC = 0.595) and low for the manual measurement (ICC = 0.446). The result of the intraobserver correlation was excellent (ICC = 0.917). We did not obtain a statistical correlation between the measurement of areas and the increase of the graft diameter (R = 0.069, P = .63). CONCLUSION: We determined with our results that the intrasurgical graft size is not predictable with the measurement of the area of the gracilis and semitendinosus tendon on the MRI.

Quadriceps autograft in anterior cruciate ligament reconstruction: a literature review / Autoenxerto de quadríceps na reconstrução do ligamento cruzado anterior: uma revisão da literatura / Autoinjerto de cuádriceps en la reconstrucción del ligamento cruzado anterior: una revisión de la literatura

ABSTRACT Introduction: Anterior cruciate ligament injury is one of the most prevalent musculoskeletal injuries. Therefore, several surgical techniques and graft types have been described for its reconstruction. Autologous hamstring tendon graft is one of the most frequently used, but use of the quadriceps tendon graft has gained prominence in recent years. Objective: To review the literature to compare the outcomes of patients undergoing anterior cruciate ligament reconstruction (ACLR) with quadriceps tendon (QT) autograft versus hamstring tendon (HT) autograft. Methods: A literature review was conducted through PubMed to locate studies (Level of evidence I-III) comparing the outcomes of the QT autograft vs. the HT autograft in patients undergoing primary ACL reconstruction. Patients were assessed on the basis of re-rupture rate, ligament instability, patient-reported outcome scores, previous pain, and isokinetic tests. Results: Six studies were selected according to inclusion criteria. A total of 481 patients were evaluated, 243 in the QT group and 238 in the HT group. The total re-rupture rate was 1.6% (8 of 481), with 6 in the HT group and 2 in the QT group, but with no statistical difference between groups. One study found increased ligament instability in the HT group and another study found greater instability in the QT group, both with statistical significance. Regarding the patient-reported functional scores, only 01 study found statistical difference, with better results in the QT group. There was no difference in previous pain between groups in the selected studies. Regarding the isokinetic test, one study found a difference in flexor force in the HT group (p <0.01), with no difference in extensor force, while another two studies found an increased extensor force deficit in the QT group within up to 01 year of follow-up. The flexor/ extensor muscle strength ratio was higher in the QT group in both studies. Conclusion: ACL reconstruction with QT graft presents re-rupture rates, ligament instability, functional scores and donor site morbidity that are similar to the HT graft, in addition to preserving greater flexor force in proportion to extensor force. Level of evidence: IV; Review study.

RESUMO Introdução: A lesão do ligamento cruzado anterior é uma das lesões musculoesqueléticas mais prevalentes. Sendo assim, diversas técnicas cirúrgicas e tipos de enxerto foram descritos para sua reconstrução. O enxerto autólogo do tendão dos músculos isquiotibiais é um dos mais utilizados, porém o uso do enxerto do tendão do músculo quadríceps ganhou destaque nos últimos anos. Objetivo: Revisar a literatura para comparar os desfechos de pacientes submetidos à reconstrução do ligamento cruzado anterior (RLCA) com autoenxerto do tendão do músculo quadríceps (TQ) versus autoenxerto dos tendões dos músculos isquiotibiais (TF). Métodos: Uma revisão da literatura foi realizada por meio do PubMed para localização dos estudos (Nível de evidência I-III) que comparam os desfechos dos pacientes submetidos à reconstrução primária do LCA com autoenxerto TQ versus autoenxerto TF. Os pacientes foram avaliados com base na taxa de re-ruptura, instabilidade ligamentar, escores de resultados relatados pelo paciente, dor prévia e teste isocinético. Resultados: Seis estudos foram selecionados conforme o critério de inclusão. Um total de 481 pacientes foi avaliado, 243 no grupo TQ e 238 no grupo TF. O índice total de re-ruptura foi de 1,6% (8 de 481), sendo seis no grupo TF e dois no grupo TQ, porém sem diferença estatística entre os grupos. Um estudo encontrou instabilidade ligamentar aumentada no grupo TF e outro estudo verificou uma maior instabilidade no grupo TQ, ambos com significância estatística. Em relação aos escores funcionais relatados pelo paciente, somente um estudo encontrou diferença estatística com melhores resultados no grupo TQ. Não houve diferença quanto à dor prévia entre os grupos nos estudos selecionados. Sobre o teste isocinético, um estudo encontrou diferença na força flexora no grupo TF (p<0,01) sem diferença na força extensora, já outros dois estudos encontraram um déficit de força extensora aumentado no grupo TQ em até um ano de seguimento. A razão da força da musculatura flexora/extensora foi maior no grupo TQ nos dois estudos. Conclusão: A reconstrução do LCA com enxerto TQ apresenta índice de re-ruptura, instabilidade ligamentar, escores funcionais e morbidade do sítio doador semelhantes quando comparada com o enxerto TF, além de preservar uma maior força flexora proporcional à força extensora. Nível evidência: IV; Estudo de revisão.

RESUMEN Introducción: La lesión del ligamento cruzado anterior es una de las lesiones musculoesqueléticas más prevalentes. Siendo así, han sido descritas varias técnicas quirúrgicas y tipos de injerto para su reconstrucción. El injerto autólogo del tendón de los músculos isquiotibiales es uno de los más utilizados, aunque el uso del injerto del tendón del músculo cuádriceps ha cobrado importancia en los últimos años. Objetivo: Revisar la literatura para comparar los desenlaces de pacientes sometidos a la reconstrucción del ligamento cruzado anterior (RLCA) con autoinjerto del tendón del músculo cuádriceps (TQ) versus autoinjerto de los tendones de los músculos isquiotibiales (TF). Métodos: Una revisión de la literatura fue realizada a través del PubMed para localización de los estudios (Nivel de evidencia I-III) que comparan los desenlaces de los pacientes sometidos a la reconstrucción primaria del LCA con autoinjerto TQ versus autoinjerto TF. Los pacientes fueron evaluados con base en la tasa re-ruptura, inestabilidad de los ligamentos, puntuaciones de resultados relatados por el paciente, dolor previo y test isocinético. Resultados: Seis estudios fueron seleccionados de acuerdo al criterio de inclusión. Se evaluó un total de 481 pacientes, 243 en el grupo TQ y 238 en el grupo TF. El índice total de re-ruptura fue del 1,6% (8 de 481), siendo 6 en el grupo TF y 2 en el grupo TQ, aunque sin diferencia estadística entre los grupos. Un estudio encontró inestabilidad de los ligamentos aumentada en el grupo TF y otro estudio verificó una mayor inestabilidad en el grupo TQ, ambos con significancia estadística. Con relación a los escores funcionales relatados por el paciente, sólo un estudio encontró diferencia estadística, con mejores resultados en el grupo TQ. No hubo diferencia cuanto al dolor previo entre los grupos en los estudios seleccionados. Sobre el test isocinético, un estudio encontró diferencia en la fuerza flexora en el grupo TF (p <0,01) sin diferencia en la fuerza extensora, ya otros dos estudios encontraron un déficit de fuerza extensora aumentado en el grupo TQ en hasta un año de seguimiento. La razón de fuerza de la musculatura flexora/extensora fue mayor en el grupo TQ en los dos estudios. Conclusión: La reconstrucción del LCA con injerto TQ presenta índice de re-ruptura, inestabilidad de los ligamentos, escores funcionales y morbilidad del sitio donante similares cuando comparada con injerto TF, además de preservar una mayor fuerza flexora proporcional a la fuerza extensora. Nivel de evidencia IV; Estudio de revisión.

Anterior cruciate ligament injuries treated with quadriceps tendon autograft versus hamstring autograft: A randomized controlled trial.

BACKGROUND: One of the most common grafts used to repair anterior cruciate ligament (ACL) rupture is the hamstring tendon (HT) autograft. However, another proposed option to repair the ACL is the quadriceps tendon (QT) autograft. This study aimed to compare the pain and clinical results between patients with ACL injury treated with QT autograft and with HT autograft. MATERIALS AND METHODS: The Ethics and Investigation Committee of our institution approved the study. The patients were randomized into two groups: one group was treated with QT autograft and the other group was treated with HT autograft. The patients were evaluated preoperatively and postoperatively using the Lysholm-Tegner score, International Knee Documentation Committee (IKDC) Subjective Knee Evaluation Form, and visual analog scale (VAS), at 2 weeks and 1, 3, 6, and 12 months. RESULTS: A total of 28 patients with a primary ACL injury were included in the study. No significant differences in VAS pain, Lysholm knee and Tegner activity scale scores, and IKDC score between the HT and QT groups were observed at any time point. All patients had favorable outcomes and significantly improved evaluation scores. CONCLUSION: The patients treated with QT autograft had clinical results and post-operative pain similar to those of patients treated with HT autograft for ACL reconstruction.

ANTECEDENTES: Uno de los injertos más comúnmente usados para la reparación de una ruptura de ligamento cruzado anterior (LCA) es el autoinjerto de los tendones isquiotibiales. Sin embargo, otra opción propuesta para la reparación del LCA es el autoinjerto del tendón de cuadríceps. El objetivo de este estudio fue comparar el dolor y resultados clínicos en pacientes con lesión del LCA tratados con autoinjerto de cuadríceps y con autoinjerto de isquiotibiales. MATERIAL Y MÉTODOS: El Comité de Ética e Investigación de nuestra institución aprobó el estudio. Los pacientes fueron aleatorizados en dos grupos: un grupo fue tratado con autoinjerto del cuadríceps y el otro grupo con autoinjerto de isquiotibiales. Los pacientes fueron evaluados preoperatoriamente y postoperatoriamente usando la escala de Lysholm-Tegner, la International Knee Documentation Committee (IKDC) Subjective Knee Evaluation Form, y la Escala Visual Análoga (EVA), a las dos semanas, a 1, 3, 6 y 12 meses. RESULTADOS: Un total de 28 pacientes con lesión primaria de LCA fueron incluidos en el estudio. No hubo diferencias significativas en EVA, escala de Lysholm-Tengner y en IKDC entre los grupos de isquiotibiales y cuadríceps durante su evaluación. Todos los pacientes tuvieron evoluciones favorables y mejoraron de forma significativa sus escalas. CONCLUSIÓN: Los pacientes tratados con autoinjerto de tendón de cuadríceps tuvieron resultados clínicos y dolor postoperatorio similar a aquellos pacientes traídos con autoinjerto de isquiotibiales en la reconstrucción de LCA.

Avaliação do índice de fadiga muscular de flexores e extensores de joelho em indivíduos ativos e sedentários

RESUMO Objetivo: Avaliar a fadiga muscular de flexores e extensores de joelho em indivíduos ativos e sedentários. Metodologia: Foram aplicados o Questionário Internacional de Atividade Física (IPAQ), Questionário de Prontidão para Atividade Física (PAR-Q) e exame clínico funcional, a fim de garantir a segurança durante a dinamometria isocinética, executada em três séries de cinco repetições dos movimentos de flexão e extensão do joelho, nas velocidades 120º/s, 180º/s e 240º/s. Resultados: Indivíduos sedentários obtiveram maior índice de fadiga, essa diferença foi significativa nos isquiotibiais esquerdos. Conclusão: É importante determinar o índice de fadiga, uma vez que a fatigabilidade da musculatura interfere diretamente no desempenho muscular e no aparecimento de lesões.

ABSTRACT Objective: To evaluate the muscular fatigue of flexors and knee extensors in active and sedentary individuals. Methodology: The International Physical Activity Questionnaire (IPAQ), Physical Activity Alert Questionnaire (PAR-Q) and functional clinical examination were performed in order to guarantee safety during Isokinetic Dynamometry, performed in 3 sets of 5 repetitions of the knee flexion and extension movements, at speeds 120º/s, 180º/s and 240º/s. Results: Sedentary individuals had a higher fatigue index, being this difference significant in the left hamstrings. Conclusion: It is important to determine the fatigue index, since the fatigue of the muscles directly interferes with the muscular performance and the appearance of injuries.

RESUMEN Objetivo: Evaluar la fatiga muscular de flexores y extensores de rodilla en individuos activos y sedentarios. Metodología: Se aplicó el Cuestionario Internacional de la Actividad Física (IPAQ), el Cuestionario de Preparación para la Actividad Física (PAR-Q) y un examen clínico funcional a fin de garantizar la seguridad durante la dinamometría isocinética llevada a cabo en 3 series de 5 repeticiones de los movimientos de flexión y extensión de la rodilla, a velocidades de 120º/s, 180º/s y 240º/s. Resultados: Los individuos sedentarios obtuvieron mayor índice de fatiga y esa diferencia fue importante en los isquiotibiales izquierdos. Conclusión: Es importante establecer el índice de fatiga ya que la fatiga de la musculatura interfiere directamente en el rendimiento muscular y en la aparición de lesiones.

Ruptura espontánea del semitendinoso secundario al uso de una quinolona / Spontaneous semitendinosus rupture secondary to the use of a quinolone

Resumen La ruptura espontánea de un tendón secundario al uso de una quinolona es un efecto adverso poco común, pero que con el paso de los años se ha venido documentado con mayor frecuencia. A pesar de lo anterior, aún no hay estudios clínicos que permitan aclarar su fisiopatología, qué estrategias pueden disminuir el riesgo de desarrollar una ruptura espontánea o a qué dosis de las diferentes quinolonas se aumenta el riesgo de presentar una ruptura espontánea. Adicionalmente, varías guías de práctica clínica incentivan el uso de las quinolonas como primera línea para el manejo de infecciones respiratorias o de vías urinarias sin hacer consideraciones sobre este efecto adverso. Por lo anterior, presentamos a continuación el caso de un paciente de 31 años que posterior al inicio de ciprofloxacina para el manejo de una diarrea aguda presento una ruptura espontánea del tendón del semitendinoso secundario al uso de la quinolona. (Acta Med Colomb 2019; 44: 115-118).

Abstract The spontaneous rupture of a tendon secondary to the use of a quinolone is an uncommon adverse effect, but over the years has been documented more frequently. Despite this, there are still no clini cal studies to clarify its pathophysiology, nor which strategies can reduce the risk of developing a spontaneous rupture or at what dose of the different quinolones the risk of presenting a spontaneous rupture increases. In addition, several clinical practice guidelines encourage the use of quinolones as the first line for the management of respiratory or urinary tract infections without considering this adverse effect. Therefore, the case of a 31 year old patient who after the start of ciprofloxacin for the management of acute diarrhea had spontaneous semitendinosus tendon rupture secondary to the use of quinolone, is presented. (Acta Med Colomb 2019; 44: 115-118).

Evaluación de la intervención educativa en residentes de Ortopedia y Traumatología para la toma, medición y preparación del injerto de isquiotibiales / Evaluation of the educational intervention in orthopaedic and traumatology residents for the taking, measurement and preparations of the hamstring graft

Resumen: Introducción: El proceso de educación se entiende como una actividad enfocada a desarrollar competencias mediante el empleo de herramientas y estrategias educativas que pueden ser sometidas a evaluación. La formación del médico residente de Traumatología y Ortopedia le exige adquirir conocimientos y desarrollar destrezas que repercutirán en el diagnóstico, tratamiento y pronóstico del paciente. Por lo tanto, ¿cuál será la evaluación de la intervención educativa sobre los conocimientos teóricos y prácticos en residentes de la especialidad de traumatología y ortopedia sobre la técnica de toma, medición y preparación de injerto de isquiotibiales para la reconstrucción de ligamento cruzado anterior? Material y métodos: Se realizó un estudio prospectivo, cuasiexperimental para evaluar el impacto de la intervención educativa en 23 residentes de Traumatología y Ortopedia sobre el uso de isquiotibiales en la reconstrucción de ligamento cruzado anterior mediante sesiones teórica y práctica en rodillas cadavéricas con evaluaciones pre- y postintervención. Resultados: La correlación entre la evaluación pre- y postintervención educativa, tanto teórica como práctica, fue estadísticamente significativa (p = 0.004 y p = 0.4, respectivamente). Conclusiones: La correlación estadísticamente significativa entre evaluaciones pre- y postintervención educativa refiere el valor de las estrategias de aprendizaje, en el caso de este estudio, la intervención a través de una sesión teórica y práctica mediante un paciente simulado (práctica necroquirúrgica) promueve la adquisición de conocimientos y el desarrollo de habilidades y destrezas.

Abstract: Introduction: The education process is understood as an activity focused on developing competencies through the use of educational tools and strategies that can be evaluated. The training of the residents in Traumatology and Orthopedics requires you to acquire knowledge and develop skills that will affect the diagnosis, treatment and prognosis of the patient. Therefore, what will be the evaluation of the educational intervention on the theoretical and practical knowledge in this group of physicians on the technique of taking, measuring and preparation of hamstring graft for the reconstruction of anterior cruciate ligament? Material y methods: A prospective, quasi-experimental study was conducted to evaluate the impact of educational intervention in 23 Traumatology and Orthopaedic residents on the use of hamstring in the anterior cruciate ligament reconstruction through theoretical sessions and Practice on cadaverous knees with preand post-intervention evaluations. Results: The correlation between the pre and post evaluation educational intervention, both theoretical and practical, was statistically significant (p = 0.004 and p = 0.4, respectively). Conclusion: The statistically significant correlation between preand post-educational intervention evaluations speaks of the value of learning strategies, in the case of this study, the intervention through a theoretical and practical session by a simulated patient promotes knowledge acquisition and development of skills.

Superior capsular reconstruction of irreparable rotator cuff tear using autologous hamstring graft. / Reconstrucción de la cápsula superior en las roturas irreparables del manguito mediante injerto autógeno de isquiotibiales.

OBJECTIVE: The aim of this study was to investigate the clinical results and radiographic findings after superior capsular reconstruction (SCR) of postero-superior symptomatic irreparable rotator cuff tears (PSIRCT) using a new SCR technique using autologous hamstring graft MATERIAL AND METHODS: From 2014 to 2016, 8 shoulders of 8 patients (mean age 59.6 years) with PSIRCT underwent SCR using autologous hamstring graft. Physical examination, X-ray and MRI were performed before the surgery and 12 months after it. A descriptive analysis was performed of the variables, and the non-parametric test of signs comparing the measurements taken before the operation and 12 months after it. RESULTS: We found an improvement in the Constant test from 49 before the SCR to 77.25 one year after the operation. The mean active flexion significantly increased from 99.3° to 142.5°. The mean preoperative AH distance increased from 5.25 (range from 3 to 7) before surgery to 8.18 (range from 6 to 10.5) after the SCR. There were no tears of the graft during follow-up. CONCLUSION: SCR with a hamstring graft improves the function of the shoulder in PSIRCT, and is an alternative technique for treating these injuries without closing the door to other types of surgery.

Caracterización morfológica del componente tendo-muscular del compartimiento posterior del muslo / Morphological characterization of the tendo-muscular component of the posterior compartment of the thigh

Los aspectos morfológicos del componente tendomuscular del compartimiento posterior han sido descritos en algunos grupos poblacionales. Se evaluó mediante disección directa las características morfológicas y biométricas del compartimento posterior de 50 muslos de especímenes cadavéricos, en una muestra de población colombiana. El 2 % los músculos isquiotibiales se originaron en un tendón común, 58 % presentó un tendón común para el musculo semitendinoso (MSt) y cabeza larga del músculo bíceps femoral (MBF). El 40 % de la cabeza larga del MBF se originó en el margen lateral de la tuberosidad isquiática (TI) y el MSt en su superficie posterior. En el 98 % de los casos el músculo semimembranoso (MSm) se originó en el margen medial de la TI y se dispuso como una estructura medial del muslo. No se observaron variaciones en el lugar de inserción de los músculos isquiotibiales. El MSt presentó la mayor longitud (419,5 DE 33,2 mm); el tendón distal con mayor espesor fue el del MBF (8,5 DE 5,6 mm), mientras que el músculo semimembranoso (MSm) presentó el componente miotendinoso más ancho (22,4 DE 6,5 mm). No hubo diferencias morfométricas estadísticamente significativas con relación al lado de presentación. Los hallazgos obtenidos enriquecen los conceptos morfológicos de la región posterior del muslo, aportan a la cualificación de procedimientos de cirugía plástica, ortopédica y al diseño de programas de entrenamiento muscular específico en diferentes disciplinas deportivas.

The morphological aspects of tendon and muscle component of the posterior compartment have been described in some population groups. The morphological and biometric characteristics of the posterior compartment of 50 thighs of cadaverous specimens were evaluated by means of a direct design, in a sample of the Colombian population. The 2 % of the hamstring beats originated in a common tendon, 58 % with a common tendon for the Semitendinous muscle (MSt) and long head of the femoral Biceps muscle (MBF). The 40 % of the long head of the MBF were originated on the lateral margin of the Ischial Tuberosity (TI) and the MSt on its posterior surface. In 98 % of the cases the semimembranous muscle (MSm) originated in the middle margin of the IT and dissolved as a medial structure of the thigh. No variation was observed in the place of the hamstring insertion. The longest time (419.5 DE 33.2 mm) the distal tendon with greater thickness was that of the MBF (8.5 OF 5.6 mm), while the semimembranosus muscle (MSm) presented the broadest myotendinous component (22.4 SD 6.5 mm). There weren't statistically significant morphometric differences in relation to the presentation side. The findings obtained enrich the morphological concepts of the posterior thigh region, contribute to the qualification of plastic surgery, orthopedic procedures and the design of muscle training programs in different sports disciplines.

Tibial tunnel widening associated with anterior cruciate ligament reconstruction using autogenous hamstrings: A comparison between antero-medial portal and transtibial techniques. / Valoración de la apertura del túnel tibial tras la reconstrucción del ligamento cruzado anterior empleando isquiotibiales autógenos: Estudio comparativo entre la técnica de portal anteromedial y la técnica transtibial convencional.

OBJECTIVE: Evaluate the enlargement effect of the tibial tunnel emergence of 2 different of anterior cruciate ligament reconstruction techniques: antero-medial portal (AMP) vs. transtibial (TT) technique. METHODS: A prospective, randomized controlled study was performed in 36 consecutive patients who underwent anterior cruciate ligament reconstruction with autologous hamstring tendon grafts employing the AMP and conventional TT techniques. Lateral and antero-posterior radiographs were obtained for each patient at 6 weeks and 12 months postoperatively. The sclerotic margins of the tibial tunnels were measured at the widest dimension of the tunnel as well as the diameter of the tibial emergence and were compared with the initially drilled tunnel size after correction for radiographic magnification. Statistical analysis was performed to compare the 2 groups by use of the independent-samples t test, with significance set at .05. RESULTS: The mean percentage increase in the diameter of tibial tunnel emergence at 6 weeks after surgery was 8.1%±2.9 for the PAM technique and 21.20%±11.87 for the TT technique on the anteroposterior x-ray view. However, the mean percentage increase in the diameter of the tibial tunnel emergence on the lateral view was 7.1%±4.72 for the medial portal technique and 17.64%±11.48 for the transtibial technique. This difference was statistically significant on both anteroposterior and lateral views. CONCLUSIONS: The diameter of the tibial tunnel emergence for hamstring autologous anterior cruciate ligament reconstructions was significantly lower for the medial portal technique when compared with the conventional TT technique.

Síndrome de fricción de la cintilla iliotibial posterior a reconstrucción del ligamento cruzado anterior con pines transversos bioabsorbibles / Iliotibial band friction syndrome due to bioabsorbable pins in ACL reconstruction

Resumen: Las lesiones del ligamento cruzado anterior (LCA) hoy en día son tratadas principalmente con injerto de isquiotibiales y una amplia gama de técnicas y sistemas de fijación del LCA en busca de una menor morbilidad del paciente. Se reporta un caso de una paciente de 42 años que sufrió ruptura de LCA, tratada con reconstrucción de LCA con injerto autólogo de isquiotibiales, fijación femoral con pines transversos bioabsorbibles y fijación tibial con tornillo bioabsorbible. La paciente evolucionó con presencia de dolor en región lateral de rodilla, diagnosticado como síndrome de fricción de la banda iliotibial un año posterior a la cirugía. Se realizaron estudios de imagen que incluyeron rayos X y resonancia magnética (RM) donde se observó adecuada fijación del LCA con presencia de migración y ruptura del pin proximal bioabsorbible. Se decidió extraer el fragmento del pin bioabsrobile en un segundo tiempo quirúrgico y la paciente regresó a sus actividades cotidianas y deportivas sin dolor y con una adecuada estabilidad.

Abstract: Injuries of the anterior cruciate ligament are currently treated primarily with the use of hamstring graft with a wide range of different techniques and fixation systems for anterior cruciate ligament in reducing patient morbidity. We report the case of a female patient aged 42 that suffered an anterior cruciate ligament rupture and was treated with anterior cruciate ligament reconstruction with hamstring autograft with femoral fixation with bio-absorbable cross-pin and tibial fixation with bio-absorbable screw. The patient presented lateral knee pain that was diagnosed one year after the operation as an iliotibial band friction syndrome. Imaging studies were performed. X-rays and magnetic resonance imaging demonstrated adequate fixation of the anterior cruciate ligament with the presence of migration and rupture of the proximal bio-absorbable cross-pin. It was decided to remove the bio-absorbable cross-pin fragment in a second surgical procedure after which the patient went back to her daily activities and sports without pain and with stability stable knee.