Trombosis venosa profunda en cirugías de tobillo y pie. Algoritmo de profilaxis / A prophylaxis algorithm for deep vein thrombosis in ankle and foot surgery

Introducción: La enfermedad tromboembólica es una de las complicaciones serias en la cirugía ortopédica. La tromboprofilaxis para las cirugías de tobillo y pie no está estandarizada, porque la incidencia es baja, según la bibliografía. El objetivo de este estudio es aportar un algoritmo de prevención para la trombosis venosa profunda y una revisión de la bibliografía. Materiales y Métodos: Se llevó a cabo una revisión de las historias clínicas de los pacientes operados entre 2011 y 2017. La muestra estaba integrada por 696 hombres (28,98%) y 1706 mujeres (71,02%), con un promedio de edad de 51 años (rango 20-82). Se realizaron 2402 procedimientos, 575 (23,94%) fueron por patologías traumáticas y 1827 (76,06%), por patologías ortopédicas. Resultados: Nueve pacientes (0,37%) presentaron trombosis venosa profunda y solo dos, tromboembolismo pulmonar (0,08%). Los procedimientos en los que ocurrieron fueron: artroscopia, reparación aguda del tendón de Aquiles, hallux valgus y fractura del 5.° metatarsiano. Conclusiones: Se recomienda un enfoque multimodal para la profilaxis de la trombosis venosa profunda. Esto incluye abordar los factores de riesgo modificables, mediante la profilaxis mecánica, la movilización temprana y la profilaxis química. La heparina de bajo peso molecular es eficaz para reducir la tasa de trombosis venosa profunda y tromboembolismo pulmonar. Nivel de Evidencia: IV

Introduction: Deep vein thrombosis (DVT) is a major complication in orthopedic surgery. According to the literature, thromboprophylaxis in foot and ankle surgery is not a standardized practice due to the low incidence of DVT. Materials and Methods: We reviewed the medical records of surgical patients. Between 2011 and 2017, 1591 surgeries were performed, 6 of them due to symptomatic DVT. Results: The incidence of DVT in major orthopedic surgeries, such as knee and hip, is well documented, but there are only a few reports about its incidence in foot and ankle surgery. It is considered a relatively rare complication in many published studies; thus, preventive drug therapy is not routine practice. Conclusions: A multimodal approach to DVT prophylaxis for high-risk patients is recommended. All risk factors should be addressed, such as mechanical prophylaxis, early mobilization, and the use of chemoprophylaxis. Low molecular weight heparin is effective in reducing the rate of clinically significant DVT and is also likely to reduce the rate of pulmonary embolism. Level of Evidence: IV

Resultados clínicos y funcionales de la plastía Broström-Gould para inestabilidad lateral de tobillo: evaluación con tres escalas / Clinical and functional results of the Broström-Gould technique for lateral ankle instability: evaluation with three scales

Resumen: Antecedentes: La secuela más frecuente del esguince de tobillo es la inestabilidad del complejo ligamentario lateral; los resultados del tratamiento quirúrgico no han sido evaluados con varias escalas simultáneamente. El objetivo del estudio fue evaluar los resultados clínicos y funcionales con tres escalas en pacientes con inestabilidad lateral de tobillo sometidos a plastía de Broström-Gould, utilizando para su fijación anclas con sutura al peroné distal. Material y métodos: El diseño del estudio fue transversal y descriptivo; se incluyeron pacientes con inestabilidad lateral de tobillo y ruptura parcial o completa del ligamento PAA y/o PC, sometidos a reparación con plastía de Broström-Gould. Se realizó resonancia magnética nuclear para confirmar el diagnóstico; los resultados clínicos y funcionales se determinaron con tres escalas: EVA, SF-36 y AOFAS. Los pacientes fueron evaluados a los seis meses o más posteriores al procedimiento quirúrgico. Resultados: Se incluyeron 13 pacientes; la calidad de vida (cuestionario SF-36) arrojó un resultado bueno con promedio de 90; 10 (77%) pacientes mostraron resultados excelentes en la función, ausencia de dolor y alineación del tobillo (AOFAS 90-100). Asimismo, se observó mejoría importante en el dolor (EVA prequirúrgico: 6, comparado con 1 en el período postquirúrgico). Conclusiones: El procedimiento quirúrgico demostró excelentes resultados en el corto plazo con resolución del dolor y estabilidad del tobillo.

Abstract: Background: The most frequent sequel to the ankle sprain is the instability of the lateral ligament complex; the results of surgical treatment have not been evaluated with multiple scales simultaneously. The objective of the study was to assess the clinical and functional results with three scales in patients with lateral instability of ankle undergoing Broström-Gould technique, using for fixation, anchors with suture to distal fibula. Material and methods: The design of the study was cross-sectional and descriptive; we included patients with lateral instability of ankle and partial or complete rupture of the APA or CP ligament subject to repair with Broström-Gould technique. Magnetic resonance imaging was performed to confirm the diagnosis; clinical and functional outcomes were determined with three scales: EVA, SF-36 and AOFAS. Patients were evaluated at six months, or more, after the surgical procedure. Results: We included 13 patients; quality of life (SF-36 questionnaire) showed a good result with average score of 90; 10 (77%) patients showed excellent results in function, absence of pain and alignment of the ankle (AOFAS 90-100). Also found significant improvement in pain (presurgical EVA: 6, compared with 1 in the postoperative period). Conclusions: The surgical procedure showed excellent results, in the short term with resolution of pain and ankle stability.

Technique of syndesmotic screw insertion in weber type C ankle fractures

To find out impact of the position of the ankle during tightening of the syndesmotic screw used to fix syndesmotic disruption in bimalleolar Weber type C ankle fracture. A randomised controlled clinical trial. Orthopaedic Department at Combined Military Hospital Malir Karachi, from October 2002 to December 2005. We hypothesized that syndesmotic screw tightening with ankle in plantigrade position rather than 200 dorsiflexion would result in reduced range of dorsiflexion of the ankle joint postoperatively. Twenty-one consecutive young active patients with Weber type C bimalleolar ankle fractures having syndesmotic injuries treated with open reduction and internal fixation were randomly allocated to two groups. In group I [n=10] syndesmotic screw was inserted with ankle in 200 dorsiflexion and in group II [n=11] syndesmotic screw was inserted with ankle in plantigrade position. Patients were followed up for 12 months. Study end point was healing of the fracture. Subjective and objective assessment with Olerud-Molander Ankle [OMA] scores and bi-planar radiography was done. The range of ankle dorsiflexion postoperatively, hardware failure and need to remove the screw were the outcome measures. Comparing two groups using paired sample t-test, we did not find a statistically significant difference in postoperative range of ankle dorsiflexion between the two groups [p values > 0.05]. Differences between the two groups as regard the OMA scores, hardware failure and need to remove the screws were not significant either. Syndesmotic screw can be tightened with ankle in plantigrade or dorsiflexed positions without resulting in reduced range of ankle dorsiflexion postoperatively

The Effect of 2 Hz and 100 Hz Electrical Stimulation of Acupoint on Ankle Sprain in Rats

The electrical stimulation of acupoint (ESA) releases several endogenous neuropeptides, which play important roles in management of pain and inflammation. ESA with low and high frequencies has been shown to release different neuropepides, suggesting its various therapeutic effects. Pain and edema are major problems for ankle sprain. However, there have been few reports on the effects of ESA for ankle sprain. We aimed to investigate that ESA can reduce pain and edema resulting from ankle sprain, and whether there is a difference in therapeutic effects between low and high frequency ESA. To induce ankle sprain in Sprague-Dawley rats, the ankle of right hindpaw was overextended in direction of simultaneous inversion and plantar flexion. Stepping force and edema in the paw of the sprained ankle were measured by electronic balance and plethysmometer, respectively. In both 2 and 100 Hz ESA groups, stepping force was increased significantly in similar degrees (p<0.05). Only 2 Hz ESA produced the significant rapid decrease in ankle edema. This study demonstrates that ESA of 2 Hz and 100 Hz shows comparable analgesic effects, but only 2 Hz ESA can facilitate the reduction of edema caused by ankle sprain.

En las fracturas de tobillo, asociadas a lesión del ligamento deltoide: ¿es necesaria la repación quirúrgica del ligamento? Estudio comparativo / Must ruptures of the deltoide ligament be operated on for repair in ankle fractures? Comparative trial

Se revisaron 42 pacientes con fractura del peroné coexistente con desgarro del ligamento deltoides, recibidos durante los años 1994 y 1995. Se integraron 2 grupos, el A con 20 casos en quienes se reparó quirúrgicamente el ligamento deltoideo y el B con 22 que se trataron conservadoramente. Los resultados mostraron para el grupo A, que 2 casos tuvieron restricción funcional moderada al inicio de la marcha y 18 no tuvieron ninguna restricción. En el grupo B, un caso tuvo restricción moderada al inicio de la marcha y 21 no la tuvieron. El resultado final fue igualmente muy similar en ambos grupos. En conclusión, no se considera necesaria la reparación quirúrgica