[Short-term results of Weils osteotomy in patients with propulsive metatarsalgia]. / Resultados funcionales a corto plazo de la osteotomía de Weil en pacientes con metatarsalgia propulsiva.

INTRODUCTION: Metatarsalgia is the most common reason for consultation in orthopedic pathology of the foot. The key to its treatment lies in the correct determination of the symptoms, which are biological, morphological and mechanical alterations responsible for pain. Weil´s osteotomy is commonly used for multiple forefoot pathologies, including metatarsalgias. MATERIAL AND METHODS: We included patients with first-line failure syndrome and associated mechanical metatarsalgia-producing deformities. The minimum follow-up was six months. All individuals were interviewed with a standardized questionnaire based on the AOFAS, a survey to know their degree of satisfaction about the surgery. RESULTS: Twelve female subjects with a mean age of 51 years were recruited between March and September of 2013. Seven right feet, five left. The AOFAS values improved only in six, in which an excellent result was obtained; five rated them as good and six as unsatisfactory. CONCLUSIONS: In a very small series, postoperative complications were observed when the shortening of the metatarsal was greater than four millimeters, with the appearance of stiffness (floating finger).

INTRODUCCIÓN: La metatarsalgia es el motivo de consulta más frecuente en patología ortopédica del pie. La clave de su tratamiento radica en la correcta determinación del síntoma, que son alteraciones biológicas, morfológicas y mecánicas responsables del dolor. La osteotomía de Weil es comúnmente utilizada para múltiples patologías del antepié, incluyendo las metatarsalgias. MATERIAL Y MÉTODOS: Se estudiaron pacientes intervenidos por síndrome de insuficiencia del primer rayo y deformidades asociadas productoras de metatarsalgia mecánica. El seguimiento mínimo fue de seis meses. Se entrevistó a todos los individuos con un cuestionario estandarizado basado en la AOFAS, una encuesta para saber su grado de satisfacción acerca de la cirugía. RESULTADOS: Se obtuvieron 12 sujetos femeninos con un promedio de 51 años de edad en el período entre Marzo y Septiembre de 2013. Siete pies derechos, cinco izquierdos. Los valores de AOFAS mejoraron sólo en seis, se obtuvo un resultado excelente; cinco los calificaron como buenos y seis como no satisfactorio. CONCLUSIONES: En una serie muy pequeña, se identificaron complicaciones postquirúrgicas cuando el acortamiento del metatarsiano es mayor a cuatro milímetros, con la aparición de rigidez (dedo flotante).

[Comparative study on animal model of acute Achilles tendon rupture with surgical treatment using platelet-rich plasma]. / Estudio comparativo en modelo animal con ruptura aguda de tendón calcáneo con tratamiento quirúrgico aplicando plasma rico en plaquetas.

OBJECTIVE: To compare the functional and histologicalal course of two animal model groups with acute Achilles tendon tears using platelet rich plasma. MATERIAL AND METHODS: An open clinical trial was conducted with dogs donated by the animal facility of the Autonomous University of Puebla (BUAP, for its acronym in Spanish). Dogs were divided into 2 groups: a control group and a problem group. Intentional surgical Achilles tendon tear was performed to them. The Krackow technique was used to repair the tendon and the control group received platelet rich plasma (PRP) as a clot; the other group did not receive PRP. The dogs were seen at 4 weeks to check functionality using the Farell and Schwarz scale to assess the degree of limping. They were sacrificed at week 5; the tendons were removed and sent to the histopathology lab. RESULTS: Functionality results according to the Farell and Schwarz scale showed grades I and II in the problem group, and grades IV and V in the control group. Histologically, the problem group showed moderate vascular proliferation and abundant fibroblastic proliferation. The control group had mild to moderate vascular proliferation and moderate fibroblastic proliferation. CONCLUSIONS: PRP improves tendon healing and this has repercussions on functional recovery.