[Lumbar herniated disks treated with a dynamic interspacer]. / Hernias discales lumbares tratadas con interespaciador dinámico.

UNLABELLED: Lumbar herniated disks result in lumbar pain with neurologic involvement. Medical treatment and rehabilitation provide improvement for this type of lumbar pain at the early stages. When conservative treatment fails, the surgical option offers the possibility of improving patients' health status. Moojen considers that the application of interspinous spacers provides good results. The purpose of this research is to assess the clinical and imaging results in patients with contained lumbar herniated disk treated with the DYNAMIC INTERSPACER interspinous spacer, a Mexican product. MATERIAL AND METHODS: The efficacy of the interspinous device was assessed by means of a near-investigational and longitudinal study conducted at "General Ignacio Zaragoza" ISSSTE Regional Hospital in patients with a diagnosis of lumbar pain. RESULTS: The mean age of the sample is 46.1 years, with an age range of 26-55 years. The treated levels were 6 L5-S1 and 5 L4-L5; two levels were treated in two patients. The mean preoperative VAS score was 8.1. The mean VAS score at postoperative year three was 1.6. CONCLUSION: Multiple types and brands of foreign interspinous devices are applied in Mexico which results in patients' clinical improvement. We proved that the use of the Mexican interspinous device can clinically improve patients with lumbar pain due to herniated disk. A decrease in the compression of the sac or the nerve roots by the hernia was observed in the comparative preoperative and postoperative MRI images.

[Infected pseudoarthrosis of the tibia, a pediatric case. Case report and literature review]. / Seudoartrosis infectada en tibia, un caso infantil. Caso clínico y revisión de la literatura.

Chronic posttraumatic osteomyelitis and infected pseudoarthrosis of the tibia are complex problems associated with considerable morbidity which may compromise the viability of the involved limb. The most frequent age of presentation is 2 to 6 years, with predominance in males at a 2:1 ratio. We present the case of a male 4 year-old patient with diagnosis of infected pseudoarthrosis. During the physical exam a fistula was detected in the anterior aspect of the right leg, with discharge of purulent material, and inability for weight bearing and gait. X-rays, culture of the exudate and biopsy were performed. Treatment consisted of antimicrobial therapy, surgical debridement's, and application of an autologous bone graft. The infection was controlled, the tibia healed, and function was restored.