[Results of all-inside arthroscopic meniscal sutures, mid-term review]. / Resultado de suturas meniscales por técnica artroscópica ''todo adentro'', revisión a mediano plazo.

INTRODUCTION: all-in meniscal suture devices have evolved and simplified meniscal repair. In this study we will formulate the following research questions: what is the rate of survival and failure? What are the risk factors associated with failure? And what are the functional results after meniscal repair surgery? MATERIAL AND METHODS: ambispective study from 2001 to 2021 of patients with repairable meniscal injury with all-in meniscal suture devices. The survival and failure ratio were obtained with the Kaplan-Meier test, the risk factors associated with meniscal suture failure were assessed with the logistic regression test, and the pre- and post-surgical functional results were estimated with the test. t-Student. RESULTS: in 20 years of follow-up of 316 menisci repaired with all-in meniscal sutures, a survival rate of 95.9% was obtained. The absence of injury to the anterior horn of the meniscus was shown to be a protective factor [OR = 0.12], together with not practicing impact sports [OR = 0.2]. Post-surgery IKDC and Tegner-Lysholm results were shown to be very good to excellent (p < 0.0001). CONCLUSION: all-in meniscal suture devices are and will continue to be front-line weapons in the repair of meniscal tears. In 20 years of follow-up, a lower failure rate was evidenced, associated with excellent functional results.

INTRODUCCIÓN: los dispositivos de suturas meniscal todo adentro han evolucionado y simplificado la reparación meniscal. En este estudio formulamos las siguientes preguntas de investigación: ¿cuál es la tasa de supervivencia y falla?, ¿cuáles son los factores de riesgo asociado a falla? y ¿cuáles son los resultados funcionales posterior a la cirugía de reparación meniscal? MATERIAL Y MÉTODOS: estudio ambispectivo desde el 2001 al 2021 de pacientes con lesión meniscal reparable con dispositivos meniscales de sutura todo adentro. La razón de supervivencia y falla se obtuvo con el test de Kaplan-Meier, los factores de riesgo asociado con falla de la sutura meniscal se valoraron con el test de regresión logística y los resultados funcionales pre y postquirúrgicos fueron estimados con la prueba t-Student. RESULTADOS: en 20 años de seguimiento de 316 menisco reparados con suturas meniscal todo adentro se obtuvo que la razón de supervivencia de 95.9%. La ausencia de lesión del cuerno anterior del menisco se mostró como un factor protector [OR = 0.12], junto a la no práctica de deportes de impacto [OR = 0.2]. Se mostraron resultados del IKDC y Tegner-Lysholm posterior a la cirugía de muy buenos a excelentes (p < 0.0001). CONCLUSIÓN: los dispositivos de sutura de meniscal todo adentro son y seguirán siendo armas de primera línea en la reparación de las roturas meniscales. En 20 años de seguimiento se evidenció una menor tasa de falla, asociados con excelentes resultados funcionales.

Microinvasive Meniscal Suture with Disposable Needle / Sutura meniscal microinvasiva com agulha descartável

Abstract The first meniscal suture was performed in 1885 and took about a century to become popular. Currently, all-inside meniscal repair devices are widely used. However, this technique presents the disadvantage of being a method dependent on specific devices, presenting a higher cost than other techniques. This high cost limits the use of such a technique in many locations. The objective of the present technical note is to describe a microinvasive meniscal suture technique as a modification of the all-inside technique, using a disposable 40 x 12 mm procedure needle. The authors believe that the proposed modification to the technique can make it more popular, enabling the use of the microinvasive technique in places with limited resources.

Resumo A primeira sutura meniscal foi realizada em 1885 e levou cerca de um século para tornar-se popular. Atualmente, os dispositivos de reparo meniscal all-inside são amplamente utilizados. Contudo, esta técnica apresenta a desvantagem de ser um método dependente de dispositivos específicos, apresentando um custo superior aos de outras técnicas. Este valor elevado limita o uso de tal técnica em muitos locais. O objetivo da presente nota técnica é descrever uma técnica de sutura meniscal microinvasiva, como uma modificação da técnica all-inside, utilizando uma agulha descartável de procedimento de 40 x 12 mm. Os autores acreditam que a modificação proposta para a técnica pode torná-la mais popular, possibilitando o uso da técnica microinvasiva em locais com recursos limitados.

Meniscal Root Tears: An Update Focused on Preoperative and Postoperative MRI Findings.

Meniscal root tears represent radial tears or avulsions of the meniscal cartilage at the tibial attachment site that profoundly affect meniscal biomechanics and kinematics. Meniscal root tears have the functional effect of a total meniscectomy and can lead to rapid degenerative change with development of early knee osteoarthritis (OA). A growing range of arthroscopic surgical techniques have been developed to repair meniscal root tears with the aim of restoring joint kinematics and contact pressures and delaying the development of OA. With increased understanding of the anatomy and biomechanics of the meniscal root, meniscal root injury repair has become the treatment of choice in knees with nonadvanced OA. This article reviews the anatomy and biomechanics of the meniscal roots, clinical and imaging diagnostic criteria of meniscal root tears, correlation between arthroscopy and MRI in the diagnosis and classification of meniscal root tears, and expected and abnormal MRI findings after meniscal root repair. Familiarity with MRI signs and classifications of meniscal root tears, as well as with root repair surgical techniques, can aid radiologists in correctly reporting preoperative and postoperative MRI findings.

Preoperative Meniscal Extrusion Predicts Unsatisfactory Clinical Outcomes and Progression of Osteoarthritis after Isolated Partial Medial Meniscectomy: A 5-Year Follow-Up Study.

The objective of this study was to examine the association between preoperative meniscal extrusion of patients undergoing partial medial meniscectomy with clinical outcomes and progression of osteoarthritis and to determine the extent of meniscal extrusion associated with unsatisfactory clinical outcomes and progression of osteoarthritis. Ninety-five patients who underwent partial medial meniscectomy with a minimum follow-up of 5 years were retrospectively reviewed. Preoperative meniscal extrusion was evaluated with magnetic resonance imaging. Patients were assessed preoperatively and postoperatively with Lysholm and International Knee Documentation Committee (IKDC) subjective scores for clinical outcomes and with IKDC radiographic scale for osteoarthritis. An ANOVA (Analysis of Variance) was used to analyze the variations in meniscal extrusion and the clinical and radiological outcomes. A regression analysis was performed to identify factors that affect preoperative medial meniscus extrusion and that influence results after partial meniscectomy. An optimal cutoff value for meniscal extrusion associated with unsatisfactory clinical outcomes and progression of osteoarthritis was established. Significance was set at p < 0.05. The mean ± SD preoperative and postoperative Lysholm scores were 59.6 ± 15.5 versus 83.8 ± 13.1 (p < 0.001) and the mean preoperative and postoperative IKDC subjective scores were 59.4 ± 16.8 versus 82.0 ± 15.8 (p < 0.001). Meniscal extrusion greater than 2.2 mm (sensitivity, 84%; specificity, 81%) and 2.8 mm (sensitivity, 73%; specificity, 85%) was associated with unsatisfactory (poor/fair) Lysholm and IKDC subjective scores, respectively. The progression of osteoarthritis, characterized as a change of at least one category on the IKDC radiographic scale, occurred when meniscal extrusion was greater than 2.2 mm (sensitivity, 63%; specificity, 75%). Patients with higher body mass index (BMI) had significantly greater meniscal extrusion that patients with normal BMI (p < 0.001). The medial meniscus was more extruded in patients with horizontal and root tears. In conclusion, patients with preoperative meniscal extrusion of 2.2 mm or greater had unsatisfactory clinical outcomes and progression of osteoarthritis after partial medial meniscectomy at a minimum of 5 years follow-up. Higher BMI and horizontal and root tears were associated with greater preoperative meniscal extrusion.

Reparación artroscópica de lesiones meniscales en pacientes mayores de cuarenta años. Resultados con seguimiento mínimo de cuatro años / Arthroscopic meniscal repair in patients older than 40 years. Outcomes with minimum follow-up of 4 years

Introducción: El objetivo del siguiente trabajo es mostrar los resultados clínicos de una serie de pacientes mayores de cuarenta años, tratados con reparación meniscal, evaluar detalles de las técnicas utilizadas, índice y causa de fallas y vuelta al deporte. Materiales y métodos: analizamos retrospectivamente pacientes intervenidos quirúrgicamente por nuestro equipo entre enero de 2012 y enero de 2018, a los que se les realizó reparación de lesión meniscal, asociada o no a lesión de LCA. Se excluyeron los pacientes menores de cuarenta años, aquellos con cirugías previas y seguimiento menor a cuatro años. Resultados: evaluamos cuarenta pacientes con edad promedio de cuarenta y ocho años (rango 40­61). El seguimiento promedio fue de sesenta y seis meses (rango 48­84). El promedio de suturas utilizadas fue 3 (rango 1 a 8 puntos). Cinco pacientes presentaron fallas (12.5%): cuatro asociadas a plástica de LCA y la restante por una reparación aislada. Los scores de Lysholm, IKDC y Tegner mostraron mejoría en el postoperatorio. Conclusión: según la evidencia disponible hasta la fecha, y los muy buenos resultados obtenidos en este estudio con un índice de falla del 12.5%, la edad, como factor independiente, no debe ser tomada como una contraindicación para la reparación meniscal. La reparación meniscal en pacientes mayores de cuarenta años tiene índices de fallas comparables a las reparaciones realizadas en pacientes jóvenes después de cuatro años de seguimiento. Nivel de Evidencia: IV

Purpose: Our aim is to evaluate clinical results in a series of meniscal repair in patients over forty years old. Reviewing the used technique, index and failure cause and return to sport. Materials and methods: we retrospectively reviewed our patients who underwent an arthroscopic meniscal repair between January 2012 and January 2018, with or without concomitant ACL reconstruction surgery. We excluded patients under forty years old, previous surgery, and a follow up of less than four years. Results: forty patients met our criteria. Mean age was forty-eight years old (range 40­61). The mean follow-up was of sixty-six months (range 48­84). The average number of sutures needed to make the repair was of three (range 1­8 sutures). Five patients failed (12.5%), four had an associated ACL reconstruction surgery and the latter was an isolated repair. Lysholm Score, IKDS and Tegner Score showed great results in the post-operative period. Conclusion: as more and more patients remain active into adulthood, the ability to preserve native meniscal tissue after injury is an important goal. According to the available evidence published so far, and our very promising results shown in this study with a 12.5% failure rate, age as an independent factor should not be considered as a non-repairing factor. Meniscal repair in patients over forty years old present similar results and failure rate comparable to repairs in younger patients after four years of follow-up. Level of Evidence: IV

Degenerative Medial Meniscus Tear With a Displaced Flap Into the Meniscotibial Recess and Tibial Peripheral Reactive Bone Edema Presents Good Results With Arthroscopic Surgical Treatment.

PURPOSE: To report the arthroscopic treatment results of a degenerative medial meniscus tear with a displaced flap into the meniscotibial recess, tibial peripheral reactive bone edema, and focal knee medial pain. As a secondary objective, we propose to identify possible factors associated with a good or poor prognosis of the surgical treatment of this lesion. METHODS: From 2012 to 2018, patients who had this specific meniscus pathology and underwent arthroscopic surgical treatment were retrospectively evaluated. Patients with Kellgren-Lawrence (KL) classification greater than 2 were excluded. KL classification, the presence of an Outerbridge grade III/V chondral lesion of the medial compartment, limb alignment, body mass index, and smoking were evaluated. The subjective outcomes included the International Knee Documentation Committee score, improvement in the pain reported by patients, and the Global Perceived Effect (GPE) scale score. RESULTS: A total of 69 patients were evaluated. The mean age was 58.6 ± 7.1 years. The follow-up time was 48.7 ± 20.8 months. Fifty-five (79.7%) patients reported pain improvement. The postoperative International Knee Documentation Committee was 62.6 ± 15.4, and the mean GPE was 2.3 ± 2.6. Fourteen patients (20.3%) showed no improvement in pain, and 7 patients (10.2%) presented complications. Groups that improved (GPE > 0) and did not improve (GPE < 0) did not present differences regarding age, sex, follow-up time, chondral lesions, or body mass index. Patients without improvement had a greater incidence of smoking (P = .001), varus alignment (P = .008), and more advanced KL classification (P < .001). In the multivariate analysis based on the GPE score, KL classification (P = .038) and smoking (P = .003) were significant. CONCLUSIONS: Arthroscopic surgical treatment of degenerative medial meniscal tears with a meniscal flap displaced into the meniscotibial recess and adjacent focal bone edema in the tibia shows good results in approximately 80% of cases. Smoking and KL grade 2 were factors associated with poor prognosis of surgical treatment. LEVEL OF EVIDENCE: Level IV (case series).

Medial meniscal extrusion greater than 4 mm reduces medial tibiofemoral compartment contact area: a biomechanical analysis of tibiofemoral contact area and pressures with varying amounts of meniscal extrusion.

PURPOSE: The primary objective of this study is to evaluate the contact areas, contact pressures, and peak pressures in the medial compartment of the knee in six sequential testing conditions. The secondary objective is to establish how much the medial meniscus is able to extrude, secondary to soft tissue injury while keeping its roots intact. METHODS: Ten cadaveric knees were dissected and tested in six conditions: (1) intact meniscus, (2) 2 mm extrusion, (3) 3 mm extrusion, (4) 4 mm extrusion, (5) maximum extrusion, (6) capsular based meniscal repair. Knees were loaded with a 1000-N axial compressive force at 0°, 30°, 60°, and 90° for each condition. Medial compartment contact area, average contact pressure, and peak contact pressure data were recorded. RESULTS: When compared to the intact state, there was no statistically significant difference in medial compartment contact area at 2 mm of extrusion or 3 mm of extrusion (n.s.). There was a statistically significant decrease in contact area compared to the intact state at 4 mm (p = 0.015) and maximum extrusion (p < 0.001). The repair state was able to improve medial compartment contact area, and there was no statistically significant difference between the repair and the intact states (n.s.). No significant differences were found in the average contact pressure between the repair, intact, or maximum extrusion conditions at any flexion angle (n.s.). No significant differences were found in the peak contact pressure between the repair, intact, or maximum extrusion conditions at any flexion angle (n.s.). CONCLUSION: In this in vitro model, medial meniscus extrusion greater than 4 mm reduced medial compartment contact area, but meniscal extrusion did not significantly increase pressure in the medial compartment. Additionally, meniscal centralization was effective in restoring the medial tibiofemoral contact area to intact state when the meniscal extrusion was secondary to meniscotibial ligament injury. The diagnosis of meniscal extrusion may not necessarily involve meniscal root injury. Since it is known that meniscal extrusion greater than 3 or 4 mm has a biomechanical impact on tibiofemoral compartment contact area and pressures, specific treatments can be established. Centralization restored medial compartment contact area to the intact state.

Evolución clínica y análisis del estado del cartílago articular por mapeo-T2 y segunda vista artroscópica a veinticuatro meses del trasplante de menisco medial / Meniscal transplantation. Clinical evolution of articular cartilage for T2-mapping and second-look arthroscopic at twenty-four months

Introducción: El objetivo de nuestro trabajo es evaluar la evolución clínica, la condroprotección y la reacción inmunológica del trasplante de menisco (TM) con aloinjerto gama irradiado (GI) versus fresco congelado (FC) a veinticuatro meses. Materiales y métodos: veinte TM mediales en veinte pacientes, se evaluaron escalas de rodilla, Mapeo-T2 y segunda vista artroscópica, así como identificación de reacciones inmunológicas con la medición de citocinas inflamatorias por PCR en sangre y líquido sinovial. Trece trasplantes con injerto FC y siete GI, edad promedio de treinta y dos años. Resultados: mejoría significativa en escalas a veinticuatro meses: KOOS (dolor 67.80/79.30; síntomas 60.80/82.10; AVD 8.05/92.40; deportes 37/63.35; CV 28.90/71.30), Lysholm (62.20/85.80), IKDCs (50.17/72.12), EVA (3.35/0.4). El cartílago del compartimento trasplantado se mantuvo dentro de valores normales, sin diferencia a los veinticuatro meses (fémur: 33.43 versus 33.50 ms, p = 0.16) (tibia: 33.57 versus 34.35 ms, p = 0.21). Todos los pacientes mostraron integridad del injerto a los doce meses en la segunda vista artroscópica. Solo se observó aumento en las citoquinas plasmáticas IL-6 e IL-17 en un paciente del grupo GI, sin repercusión clínica. Conclusiones: mejoría clínica, adecuada integración y condroprotección significativa a veinticuatro meses en ambos tipos de injertos

Introduction: Our objective is to evaluate the clinical course, chondroprotection and immunological reaction of meniscus transplantation (TM) with gamma irradiated (GI) versus fresh frozen (FC) allograft at twenty-four months. Materials and methods: twenty medial TMs in twenty patients, knee scales, T2-mapping and second arthroscopic view were evaluated, as well as identification of immunological reactions with the measurement of inflammatory cytokines by PCR in blood and synovial fluid. Thirteen transplants with FC graft and seven GI grafts, average age of thirty-two years. Results: significant improvement on scales at twenty-four months: KOOS (pain 67.80 / 79.30; symptoms 60.80 / 82.10; AVD 8.05 / 92.40; sports 37 / 63.35; CV 28.90 / 71.30), Lysholm (62.20 / 85.80), IKDCs (50.17 / 72.12), EVA (3.35 / 0.4). The cartilage of the transplanted compartment remained within normal values, with no difference at twenty-four months (femur: 33.43 versus 33.50 ms, p = 0.16) (tibia: 33.57 versus 34.35 ms, p = 0.21). Conclusions: all patients showed integrity of the graft at twelve months in the second arthroscopic view. An increase in plasma cytokines IL-6 and IL-17 was only observed in one patient in the GI group, without clinical repercussion. Clinical improvement, adequate integration and significant chondroprotection at twenty-four months in both types of grafts

Prediction of reparability of meniscal tears in athletes using magnetic resonance.

Meniscal tears account for approximately 15% of all knee injuries and almost 25% of them require surgical procedures. Magnetic Resonance Imaging (MRI) is widely used for noninvasive assessment of the knee joint and is considered reliable and a powerful tool for the detection of soft tissue injuries of the knee. The aim of the study was to evaluate the sensitivity, specificity, and accuracy of magnetic resonance imaging (MRI) to predict the meniscal tears repair in sports practitioners. 104 incoming consecutive patients who underwent knee joint ligament reconstruction and/or arthroscopy for the treatment of meniscal injury at knee joint were imaged using a 1.5-T MRI scanner prior to arthroscopy. MRI images were evaluated for anterior cruciate ligament (ACL), articular cartilage, and meniscal injury. Images were correlated with arthroscopic findings, used as the gold standard. The sensitivity, specificity, and accuracy of MRI in predicting meniscal repair were 61.1%, 65.94%, and 64.58%, respectively. The agreement between MRI and arthroscopy yielded a kappa index of 0.236, indicating fair agreement. When the menisci were evaluated separately, 65.85% sensitivity, 45.45% specificity, and 54.16% accuracy were found for the medial meniscus, while 46.15%, 79.51%, and 75.0% for the lateral meniscus, respectively. The accuracy was 62.09% in whose patients that arthroscopy was performed up to 3 months after MRI and 67.18% in those that this time frame was more than 3 months before surgery. The 54 meniscal injuries occurred more frequently in the posterior horn; most injuries had a longitudinal pattern and were located in the red-red (vascular) zone. We suggest that magnetic resonance imaging is only moderately accurate for the prediction of meniscus reparability.

Tratamiento de las lesiones del ligamento cruzado anterior y meniscales en adolescentes: reporte de un caso / Treatment for anterior cruciate ligament and meniscal tears in adolescents: a case report / Tratamento das lesões do ligamento cruzado anterior e meniscais em adolescentes: relatório de um caso

Dada la creciente popularidad de las actividades deportivas, el número de roturas del ligamento cruzado anterior (LCA) y lesiones meniscales ha aumentado en particular en niños y adolescentes. El manejo de estas lesiones es desafiante debido las fisis abiertas. Por un lado las opciones de reconstrucción del LCA incluyen técnicas: transfisarias, extra-articulares y intraepifisarias. Por otro lado se han descrito diferentes técnicas de reparación meniscal: "all-inside", "inside-out" y "outside-in". Estas tiene como objetivo lograr la cicatrización meniscal, evitando los efectos adversos de la meniscectomía. Presentamos un reporte de caso de un adolescente de 14 años con una rotura completa del LCA y una lesión del cuerno posterior del menisco interno que fue sometido a una reconstrucción transfisaria del LCA y a una reparación meniscal "inside-out".

With the raising popularity of sporting activity, the number of anterior cruciate ligament (ACL) ruptures and meniscal tears has increased in particular in children and adolescents. Management of these injuries is challenging due to open growth plates. On the one hand the ACL reconstructions options includes: transphyseal, extra-articular and epiphyseal-only techniques. On the other hand there have been described different meniscal repair techniques: "all-inside", "inside-out" and "outside-in". These aim to achieve meniscal healing, avoiding the adverse effects of meniscectomy. We present a case report of a 14-year adolescent with an ACL complete rupture and a posterior horn tear of the medial meniscus who underwent an ACL transphyseal reconstruction and a "inside-out" meniscal repair.

Dada a crescente popularidade das atividades esportivas, o número de rupturas do ligamento cruzado anterior (LCA) e lesões meniscais aumentou especialmente em crianças e adolescentes. O manejo destas lesões é desafiador devido às fissuras abertas. Por um lado as opções de reconstrução do LCA incluem técnicas: transfisárias, extra-articulares e intraepifisárias. Por outro lado, foram descritas diferentes técnicas de reparação meniscal: "all-inside", "inside-out" e "outside-in". Estes têm como objetivo alcançar a cicatrização meniscal, evitando os efeitos adversos da meniscectomia. Apresentamos um relatório de caso de um adolescente de 14 anos com uma ruptura completa do LCA e uma lesão do corno posterior do menisco interno que foi submetido a uma reconstrução transfisária do LCA e a uma reparação meniscal "inside-out".

Work, sport activities and factors associated with medial meniscal tears in nonathletic subjects.

BACKGROUND: It is known that late surgical reconstruction of the anterior cruciate ligament (ACL) is associated with a medial meniscal (MM) tears. However, the association between factors relating to sports and work activities and joint instability, has not been examined in non-athletic subjects. OBJECTIVE: To compare sports and work activities and other factors associated with MM tears, in subjects with ACL rupture. METHOD: A case-control design study, of patients with ACL injury, 140 cases and 140 controls with and without a rupture of MM respectively, were included. Sociodemographic factors, sports and work activities were compared. RESULTS: The independent factors associated with MM ruptures were continuing sports activities after injury (odds ratio [OR]: 3.6; 95% confidence interval [95% CI]: 1.7-7.9), joint instability (OR: 2.2; 95% CI: 1.8-2.6), time between injury and surgical intervention (time of evolution) (OR: 1.003; 95% CI: 1.0-1.01) and age (OR: 1.1; 95% CI: 1.03-1.1). CONCLUSIONS: Intense activities of daily life such as continuing sports activities, after an ACL injury in non-athletic factory workers subjects, without previous training, as well as, age, joint instability and surgical delay are risk factors for rupture of MM.

ANTECEDENTES: Se sabe que la reconstrucción tardía del ligamento cruzado anterior (LCA) se asocia a rotura del menisco medial (MM). Sin embargo, la asociación entre factores referentes a las actividades deportivas, laborales e inestabilidad articular no se ha examinado en sujetos no deportistas. OBJETIVO: Comparar las actividades laborales, deportivas y otros factores asociados a rotura del MM en sujetos con rotura del LCA. MÉTODO: Diseño de casos y controles, de sujetos con rotura del LCA; 140 casos y 140 controles con y sin rotura de MM, respectivamente. Se compararon factores sociodemográficos, actividades deportivas y laborales. RESULTADOS: Los factores independientes asociados a roturas del MM fueron el continuar con actividades deportivas después de la lesión (razón de momios [RM]: 3.6; intervalo de confianza del 95% [IC 95%]: 1.7-7.9), la inestabilidad articular (RM: 2.2; IC 95%: 1.8-2.6), el tiempo de evolución entre la lesión y la reconstrucción (RM: 1.003; IC 95%: 1.0-1.01) y la edad (RM: 1.1; IC 95%: 1.03-1.1). CONCLUSIONES: Actividades intensas de la vida diaria, como continuar con deportes, después de una lesión del LCA en sujetos obreros, no deportistas, sin entrenamiento previo, así como la edad, el retraso en la reconstrucción y la inestabilidad articular, son factores de riesgo para rotura del MM.

Reparación transtibial de la raíz posterior del menisco lateral en lesiones agudas: técnica quirúrgica y seguimiento clínico a corto plazo / Transtibial repair of posterior root of the lateral meniscus in acute lesions: surgical technique and short-term clinical follow-up

Introducción Las lesiones de la raíz posterior del menisco lateral (RPML) afectan la transferencia de la carga axial de la rodilla, lo cual genera una sobrecarga con el posterior deterioro del cartílago articular. Se han descrito numerosas técnicas quirúrgicas en la literatura para su tratamiento, pero aún no se ha demostrado superioridad de alguna, por ende, existen controversias sobre cual técnica es la más indicada para estas lesiones. El objetivo del estudio es describir la técnica quirúrgica y la evolución clínica de pacientes intervenidos con fijación transtibial de la RPML en una clínica especializada, durante el periodo 2016-2017. Materiales & Métodos Se realizó una descripción de la técnica quirúrgica y una serie de casos retrospectiva. Se incluyeron pacientes con lesiones agudas en la RPML, los cuales fueron intervenidos quirúrgicamente utilizando una nueva variación a técnica transtibial. Para determinar la evolución cínica de los pacientes se realizaron las escalas Lysholm e IKDC, antes y después de la cirugía. Resultados Se intervinieron seis pacientes con lesión aguda de la RPML, cuatro de sexo masculino. El tiempo entre el trauma y la cirugía fue en promedio 2,5 meses. Todos los pacientes presentaron lesión concomitante de ligamento cruzado anterior. Al comparar el estado inicial de los pacientes y el postoperatorio mediante las escalas de Lysholm e IKDC, se encontraron diferencias estadísticamente significativas (p<0,05). Asimismo, no se realizaron reintervenciones durante el seguimiento. Discusión La reparación de la RPML con la nueva variación de la fijación transtibial proporciona una mejoría en la función, el dolor y el nivel de actividad de los pacientes, lo que puede ayudar a retrasar la progresión de la osteoartrosis en la rodilla. Igualmente, este procedimiento se puede realizar de forma segura aún en casos de lesiones ligamentarías concomitantes. Nivel de evidencia: IV

Background injuries of posterior lateral meniscus root (PLMR) affect the transfer of the axial load of the knee. Several surgical techniques have been described for it treatment, but still none has demonstrated superiority. Consequently, there are controversies about which technique is most indicated for these injuries. The aim is to describe the a surgical technique and the clinical follow up of patients operated with transtibial fixation of PLMR in a specialized clinic, during the 2016-2017. Methods Retrospective case series and description of the surgical technique. We included patients with acute injuries in the PLMR, who were operated using a new variation to the transtibial technique. For the clinical follow-up, the IKDC and Lysholm scores were performed before and after surgery. Results Six patients with acute lesion in the PLMR were intervened, four were male. The time between trauma and surgery was on average 2.5 months. All the patients presented a concomitant lesion of the anterior cruciate ligament. When comparing the initial state of the patients and the postoperative period, statistically significant differences were found (p <0.05). Likewise, reinterventions were not performed during follow-up. Discussion The repair of PLMR with the new variation of the transtibial fixation provides an improvement in the function, the pain and the level of activity of the patients, which can help to delay the progression of osteoarthrosis in the knee. Likewise, this technique can be performed safely even in cases of concomitant ligament injuries. Level of clinical evidence: Level IV

Sutura meniscal artroscópica con técnica fuera dentro. Evaluación de resultados funcionales / Arthroscopic meniscal repair with out-inside technique

Introducción: El propósito de este trabajo fue evaluar retrospectivamente los resultados funcionales de una serie de pacientes con lesiones meniscales, tratados mediante la sutura artroscópica del menisco con técnica fuera dentro y describir la técnica quirúrgica.Material y métodos: Se analizaron retrospectivamente 49 suturas meniscales artroscópicas de rodilla. Cuarenta fueron aisladas y 9 asociadas a rupturas del LCA. Treinta y dos fueron hombres y 17 mujeres, con una edad promedio de 24 años (12- 40), y con un seguimiento promedio de 58 meses. Treinta y seis pacientes fueron tratados solo con técnica fuera dentro y en 13 pacientes se utilizó una técnica híbrida combinando una sutura fuera dentro con dispositivos todo dentro. Se realizó una evaluación clínica con el escore de Lysholm y con el International Knee Documentation Committee (IKDC), en el pre operatorio y en el último control. Resultados: Se observo una ruptura de la reparación en 7 pacientes (15%), 6 traumáticas durante una actividad deportiva, y una espontánea. Las lesiones del menisco interno y las rupturas en asa de balde presentaron un mayor índice de falla, sin que esta diferencia sea significativa. No se observaron diferencias clínicas al comparar el grupo de pacientes con técnica fuera dentro y en aquellos que se realizó una técnica hibrida. Conclusión: La cirugía de preservación meniscal con la técnica fuera-dentro nos permitió obtener resultados funcionales favorables en casos seleccionados.Tipo de estudio: Serie de casos Nivel de evidencia: IV

Introduction: The purpose of this study was to retrospectively evaluate the functional results of a series of patients with meniscal lesions treated by arthroscopic meniscal suture with the outside in technique and describe the surgical technique.Material and Methods: 49 arthroscopic meniscal knee sutures were retrospectively analyzed. Forty were isolated and 9 associated with ACL ruptures. Thirty-two were men and 17 women with an average age of 24 years (12-40), and with an average follow-up of 58 months. Thirty-six patients were treated only with outside in technique and in 13 patients a hybrid technique was used combining a suture outside inside with devices all inside. A clinical evaluation was performed with the Lysholm score and the International Knee Documentation Committee (IKDC) in the preoperative and in the last control.Results: A re-rupture is observed in 7 patients (15%), 6 traumatic during a sport activity, and a spontaneous one. Medial meniscus and bucket handle repairs have a major failure rate, without significant difference. No clinical differences were observed when comparing the group of patients with outside in technique and in those who performed a hybrid technique.Conclusion: Meniscal preservation surgery with the outside in technique allows us to obtain favorable functional results in selected cases. Type of study: Case series. Level of evidence: IV

Long-Term Survival Analysis and Outcomes of Meniscal Allograft Transplantation With Minimum 10-Year Follow-Up: A Systematic Review.

PURPOSE: To investigate the long-term survivorship rates and functional outcomes of meniscal allograft transplantation (MAT) in patients with minimum 10-year postoperative follow-up. METHODS: Two reviewers independently searched EMBASE, MEDLINE, and PubMed from database inception for literature related to MAT according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) checklist. Data are reported in a narrative summary fashion with descriptive statistics. RESULTS: Eleven studies with a total of 658 patients and 688 MATs were included. Mean age of patients was 33.1 years (range 14-66), of whom 63% were male. Mean survivorship rates were 73.5% at 10-year and 60.3% at 15-year follow-up, with 2 studies reporting 19- and 24-year survivorship of 50% and 15.1%, respectively. Pre- and postoperative Lysholm scores ranged from 36 to 60.5 and 61 to 75, respectively. Pre- and postoperative Tegner scores ranged from 1 to 3 and 2.5 to 4.6, respectively. Postoperative Knee injury and Osteoarthritis Outcome Score subset scores were as follows: Pain: 61.6 to 76.3; Symptoms: 57.9 to 61.8; Function in Daily Living: 68.5 to 79.9; Sport and Recreation: 33.9 to 49.3; Quality of Life: 37.3 to 45.9. Postoperative International Knee Documentation Committee scores ranged from 46 to 77. Regarding surgical technique, 194 MAT bone-fixation technique (53.8%) and 165 MAT suture-only fixation techniques (46.2%) were reported. The most common type of allograft used was cryopreserved (54.5% of the allografts). The most frequent concomitant procedures performed with MAT were to address chondral (20.8% of the cases) and ligament injuries (12.4% of the cases), and realignment procedures (9.4% of the cases). The most common complications observed that were not directly related to concomitant procedures were meniscal allograft partial tears (11.1%), arthrofibrosis (3.6%), and infection (2.0%). Several criteria were used among studies to define failure of MAT, the most common parameters being removal of meniscal allograft (8/11 studies) and conversion to total knee arthroplasty (7/11 studies). CONCLUSIONS: MAT can yield good long-term survivorship rates, with 73.5% and 60.3% of allografts remaining functional after 10 and 15 years, respectively. Functional outcomes 10 years after MAT were fair and improved compared with preoperative scores. LEVEL OF EVIDENCE: Level IV, systematic review of Level III and IV studies.

Meniscus Repair in Children and Adolescents: A Systematic Review of Treatment Approaches, Meniscal Healing, and Outcomes.

Although the consequences of traumatic meniscus tears and the importance of meniscal repair are well-established in adults, the same cannot be said for the young population. Better evidence regarding the outcomes following traumatic meniscal tears in children would improve our understanding of this increasing pathology and help define important factors in deciding the best treatment option. A systematic review was performed according to the Preferred Reporting Items for Systematic Review and Meta-Analysis guidelines using the Cochrane Database of Systematic Review, Cochrane Central Register of Controlled Trials, MEDLINE Ovid, and MEDLINE PubMed databases. Inclusion criteria were as follows: studies reporting the outcomes of meniscal repair in patients 18 years old or younger, with a minimum mean follow-up of 12 months, Portuguese, Spanish, or English languages, and human studies including 10 or more patients. Our search identified 2,534 individual titles. After application of the inclusion and exclusion criteria, 8 studies were included, evaluating 287 patients with repaired meniscal tears. All eight studies were classified as level of evidence IV. The mean methodological index for nonrandomized studies score was 8.6 ± 1.4. Meniscal repair included all meniscal zones and tear patterns. Anterior cruciate ligament tear was the most common associated injury. The all-inside and inside-out techniques were predominantly reported. The majority of the patients reported good to excellent outcomes and had clinical signals of meniscal healing; meniscectomies following meniscal repair were performed in just 44 cases. In conclusion, meniscal tears in pediatrics are not uncommon. Repairs of this injury were associated with good to excellent outcomes in most patients, regardless of the injury pattern, zone, or technique. Reported complications were minimal; however, higher quality studies are needed to confirm the findings of this systematic review. This is a systematic review study with Level IV.

All-epiphyseal Anterior Cruciate Ligament Reconstruction Does Not Increase the Risk of Complications Compared With Pediatric Transphyseal Reconstruction.

INTRODUCTION: Complication rates after physeal-sparing anterior cruciate ligament reconstruction (ACLR) are known to be high in the paediatric population compared with the adult population. However, the outcomes of these skeletally immature patients after all-epiphyseal reconstruction have not been compared with those after transphyseal reconstructions in a more similar age group. This study compares clinical outcomes and complications between all-epiphyseal and pediatric transphyseal ACLR. METHODS: We retrospectively reviewed 1,056 pediatric patients undergoing primary ACLR between 2000 and 2015. Of these, 51 were excluded (5 extra-articular and 46 partial transphyseal reconstructions). Demographic data, intraoperative findings and techniques, postoperative complications (including graft rupture, contralateral anterior cruciate ligament [ACL] tear, and meniscus injuries), clearance for sports, range of motion (ROM), and isokinetic strength testing were recorded. Univariate analysis was followed by stepwise, binary logistic regressions to control for confounding factors. RESULTS: During the study period, 162 patients underwent all-epiphyseal reconstruction (mean age, 12.1 ± 1.8 years) and 843 underwent transphyseal ACLR (mean age, 15.8 ± 1.9 years). At the time of surgery, more meniscus tears were found in the transphyseal group (76% versus 60%; P < 0.01). These patients also had more irreparable meniscus tears requiring partial meniscectomy (35% versus 18%; P < 0.01). Overall, the rates of graft failure, contralateral ACL injury, and new meniscus tears were 10.3%, 6.1%, and 14.2%, respectively. After controlling for confounders in a multivariate model, no difference was found in these postoperative complications between all-epiphyseal and transphyseal ACLR. Furthermore, no clinically significant difference was observed in postoperative ROM or isokinetic strength testing. DISCUSSION: Skeletally immature patients undergoing all-epiphyseal ACLR had less irreparable meniscus tears than older children undergoing transphyseal reconstruction. After adjusting for age and other confounders, there was no difference in postoperative ROM or strength, nor an increased risk of graft rupture, contralateral ACL injury, or new meniscus tear in these young patients compared with older adolescents undergoing transphyseal ACLR. LEVEL OF EVIDENCE: Level III.

Meniscectomía parcial artroscópica: resultados a más de un año de seguimiento en pacientes laborales vs. no laborales / Arthroscopic partial meniscectomy. Results to more than one year of follow-up in working compensation vs. non-working compensation patients

Introducción: El objetivo del trabajo es evaluar y comparar de manera retrospectiva los resultados de una serie de pacientes laborales y no laborales con lesiones meniscales, tratadas mediante meniscectomía parcial artroscópica. Material y métodos: Se evaluaron 60 pacientes tratados en nuestro centro, entre junio 2016 y mayo 2017, los cuales presentaban lesiones meniscales agudas que no respondieron a tratamiento conservador. Todas las lesiones fueron diagnosticadas con RM previa. Se trataba de 30 pacientes laborales y 30 no laborales, 53 de sexo masculino y 7 de sexo femenino. La edad fue entre 18 y 45 años. Treinta y seis meniscos internos y veinticuatro meniscos externos. El seguimiento promedio fue 18 meses. Se realizó score de Lysholm y EVA. Resultados: De los 30 pacientes no laborales 28 evolucionaron favorablemente, con mejoría en el score de Lysholm de 53 a 93 puntos y EVA de 7 a 1 puntos en promedio, con retorno a la actividad previo a la lesión. Dos de ellos continuaron con molestias leves, sin afectar sus rutinas diarias. En los pacientes laborales 14 evolucionaron favorablemente, con mejoría en el score de Lysholm de 48 a 74 puntos y EVA 7 a 2 puntos en promedio con retorno a su actividad laboral habitual. Dieciséis de ellos presentaban dolor moderado con retorno laboral parcial o requirieron cambio de tareas. Conclusión: Los resultados de la meniscectomía parcial en pacientes no laborales fueron excelentes a buenos, con retorno a sus actividades cotidianas en un 96%. En cuanto a los pacientes laborales se obtuvieron resultados regulares, con retorno a su actividad laboral habitual en un 53%. Tipo de estudio: Serie de casos. Nivel de evidencia: IV

Introduction: The aim of the study is to evaluate and compare retrospectively the results of arthroscopic partial meniscectomy for meniscus tears in working compensation vs. non-working compensation patients Material and methods: Sixty patients treated in our institution between June 2016 and May 2017 with the diagnosis of acute meniscus tears that did not respond to conservative treatment were evaluated. All lesions were diagnosed with previous MRI. There were 30 patients under working compensation insurance and 30 under another insurance system (53 men, and 7 women). The age ranged between 18 and 45 years. Thirty-six tears were located in the internal menisci and twenty-four in the external menisci. The average follow-up was 18 months. Lysholm and EVA scores were obtained. Results: Of the 30 non-working compensation patients, 28 evolved favorably with an improvement in the Lysholm score of 53 to 93 points and EVA of 7 to 1 points on average and returned to activity prior to the injury. Two of them continued with mild discomfort, without affecting their daily routines. In working compensation, patients 14 evolved favorably, with improvement in the Lysholm score of 48 to 74 points and EVA 7 to 2 points on average and return to their usual work activity. Sixteen of them presented moderate pain with partial job return or required change of tasks. Conclusion: The results of partial meniscectomy in non-work-related patients were excellent to good, with 96% return to daily activities. Regarding work-related patients, regular results were obtained, with a return to their usual work activity of only 53%. Type of study: Case series. Level of evidence: IV

Osteotomia de nivelamento do platô tibial na ruptura de ligamento cruzado cranial em cães: revisão / Tibial plateau leveling osteotomy in the rupture of the cranial cruciate ligament in dogs: review / Ostectomía de nivelación de la meseta tibial en la ruptura del ligamiento cruzado craneal en perros: revisión

A ruptura do ligamento cruzado cranial é uma das afecções mais comuns que ocorrem no joelho dos cães. O tratamento ainda é bastante controverso na medicina veterinária, e muitos profissionais encontram obstáculos em relação ao diagnóstico e ao procedimento cirúrgico a ser adotado. No Brasil, é crescente a abordagem terapêutica por meio das osteotomias corretivas, sendo a osteotomia de nivelamento do platô tibial (TPLO) uma das técnicas indicadas atualmente. Este trabalho tem por objetivo realizar uma revisão dos principais tópicos relacionados à ruptura do ligamento cruzado e descrever os fundamentos técnicos do planejamento e da execução da TPLO, já que esses fatores estão diretamente relacionados ao sucesso ou insucesso desse procedimento, tendo em vista a importância das possíveis complicações pós-operatórias.

Cranial cruciate ligament rupture is one of the most common conditions encounter in the stifle of dogs. It still has a controversial etiology and treatment in veterinary medicine. Many professionals find difficulties in to diagnose and chose the surgical procedure to be adopted. In Brazil, the treatment approach using corrective osteotomies is increasing, and Tibial Plateau Leveling Osteotomy (TPLO) is one ofthe techniques most widely used by professionals. The objective of this study was to review the most important issues associated to the rupture of the cranial cruciate ligament, and to describe the technical principies behind the use of correcting tibial plateau angle, and surgical technique of TPLO. The surgical procedure is directly associated to the success ar failure of treatment, and the importance of the postoperative complications must be taken into consideration.

La ruptura del ligamento cruzado craneal es una de Ias afecciones más frecuentes de la articulación femoro tibio patelar de los perros. El tratamiento sigue syendo bastante discutido en medicina veterinaria. Muchos veterinarios tienen dificultades en el diagnóstico y en cuanto a la conducta terapéutica a ser tomada. Las técnicas correctivas mediante osteotomías correctivas están siendo cada vez más utilizadas, siendo la técnica de nivelación de la meseta tibial (TPLO) una de las más indicadas actualmente. Este trabajo tiene como objetivo realizar una revisión de los principales tópicos relacionados con la ruptura del ligamento cruzado, y describir los fundamentos técnicos en cuanto a planificación y ejecución de la TPLO, ya que estas están directamente relacionados con el éxito o fracaso del procedimiento quirúrgico,teniendo en consideración la importancia de las eventuales complicaciones postoperatorias.

Osteotomia de nivelamento do platô tibial na ruptura de ligamento cruzado cranial em cães: revisão / Tibial plateau leveling osteotomy in the rupture of the cranial cruciate ligament in dogs: review / Ostectomía de nivelación de la meseta tibial en la ruptura del ligamiento cruzado craneal en perros: revisión

A ruptura do ligamento cruzado cranial é uma das afecções mais comuns que ocorrem no joelho dos cães. O tratamento ainda é bastante controverso na medicina veterinária, e muitos profissionais encontram obstáculos em relação ao diagnóstico e ao procedimento cirúrgico a ser adotado. No Brasil, é crescente a abordagem terapêutica por meio das osteotomias corretivas, sendo a osteotomia de nivelamento do platô tibial (TPLO) uma das técnicas indicadas atualmente. Este trabalho tem por objetivo realizar uma revisão dos principais tópicos relacionados à ruptura do ligamento cruzado e descrever os fundamentos técnicos do planejamento e da execução da TPLO, já que esses fatores estão diretamente relacionados ao sucesso ou insucesso desse procedimento, tendo em vista a importância das possíveis complicações pós-operatórias.(AU)

Cranial cruciate ligament rupture is one of the most common conditions encounter in the stifle of dogs. It still has a controversial etiology and treatment in veterinary medicine. Many professionals find difficulties in to diagnose and chose the surgical procedure to be adopted. In Brazil, the treatment approach using corrective osteotomies is increasing, and Tibial Plateau Leveling Osteotomy (TPLO) is one ofthe techniques most widely used by professionals. The objective of this study was to review the most important issues associated to the rupture of the cranial cruciate ligament, and to describe the technical principies behind the use of correcting tibial plateau angle, and surgical technique of TPLO. The surgical procedure is directly associated to the success ar failure of treatment, and the importance of the postoperative complications must be taken into consideration.(AU)

La ruptura del ligamento cruzado craneal es una de Ias afecciones más frecuentes de la articulación femoro tibio patelar de los perros. El tratamiento sigue syendo bastante discutido en medicina veterinaria. Muchos veterinarios tienen dificultades en el diagnóstico y en cuanto a la conducta terapéutica a ser tomada. Las técnicas correctivas mediante osteotomías correctivas están siendo cada vez más utilizadas, siendo la técnica de nivelación de la meseta tibial (TPLO) una de las más indicadas actualmente. Este trabajo tiene como objetivo realizar una revisión de los principales tópicos relacionados con la ruptura del ligamento cruzado, y describir los fundamentos técnicos en cuanto a planificación y ejecución de la TPLO, ya que estas están directamente relacionados con el éxito o fracaso del procedimiento quirúrgico,teniendo en consideración la importancia de las eventuales complicaciones postoperatorias.(AU)

Lesiones meniscales ramp, y lesiones del ligamento meniscotibial posteromedial / Meniscal ramp lesions, and posteromedial meniscotibial ligament lesions

Las lesiones meniscales son las lesiones más frecuentemente asociadas a lesiones del Ligamento Cruzado anterior (LCA), encontrándose 9,3 a 16,9% en el segmento posteromedial y comprometiendo el ligamento meniscotibial. Descritas por Strobel por su apariencia artroscópica de rampa, se ha presentado su importancia dado el subdiagnóstico y el efecto biomecánico de una lesión posteromedial del menisco sobre el LCA y que su reparación restaura la traslación nativa de la tibia en conjunto con la reconstrucción del pivote central. Se ha demostrado que la mejor forma para diagnosticar lesiones ramp, es por visiones artroscópicas accesorias, una a través del surco intercondíleo y la otra por un portal posteromedial, logrando diagnosticar y manejar aquellas lesiones que sean inestables, a través de suturas dentro tanto por el portal anterior como por el posterior. Los resultados quirúrgicos son buenos, con mayor riesgo de falla en casos que la lesión se extiende al cuerpo meniscal. Es una lesión que debe buscarse bajo lupa, ya que pasarla por alto puede llevar a progresión de la lesión y a un mayor riesgo de rerotura del ligamento cruzado reconstruido.

Meniscal tears are the most frequently associated lesions in Anterior Cruciate Ligament (ACL) rupture, 9.3 to 16.9% on them in the posteromedial segment compromising the meniscotibial ligament. Described by Strobel for its arthroscopic ramp appearance, has gained importance given the underdiagnosis and biomechanical effect of a posteromedial meniscal lesion on the ACL, and that its repair restores the native anterior tibial translation when the central pivot is also reconstructed. It has been shown that the best way to diagnose ramp lesions is by accessory portals, one through the intercondylar notch and the other through a posteromedial portal, useful to diagnose and repair those lesions that are unstable, through all-inside sutures within both Anterior and posterior portals. Surgical results are good, with increased risk of failure in cases where the lesion extends to the meniscal body. It is a lesion that must be looked for in a direct way, since misdiagnosing it can lead to ramp lesion progression and increased risk of re rupture of the reconstructed ACL.