RESUMO

The orthoplastic treatment of post-traumatic bone infections is complex and requires a multidisciplinary approach using both orthopedic and plastic surgery principles. Its primary goal is to achieve rapid control of the infection through aggressive debridement of the affected tissue, in order to perform a complete reconstruction of the limb. This allows both its salvage and restoration of function. We present a patient with septic non-union secondary to distal tibia fracture with a bone defect of 7 cm and severe soft tissue injury. The treatment was divided into three stages. First, the infection was controlled by radical debridement, limb shortening, and temporary stabilization. Second, early reconstruction was initiated utilizing the first stage of the Masquelet's induced membrane technique (MIMT), and soft tissue coverage with free flap. Third, MIMT was finalized, and bone lengthening with PRECICE nail was performed. We consider this approach effective as it can offer early recovery with optimal functional and aesthetic results in bone defects associated with coverage defects.

RESUMO

A 10-week-old male, Xoloitzcuintle (Mexican hairless dog), weighing 8.9 kg was presented after its owner accidentally stepped on its paw. The dog presented with acute pain, inflammation and grade IV lameness in the right hind paw. A complete transverse fracture in the right proximal tibia was diagnosed from radiography. The dog underwent a minimally invasive plate osteosynthesis (MIPO) procedure. After surgery, photobiomodulation therapy combined with static magnetic field (PBMT-sMF) was applied twice daily for 21 days. A multi-wavelength PBMT-sMF device was applied at three sites using different frequencies: proximal and distal of the fracture zone (3000 Hz, 40.35 J per site, and 300 s per site) and in the fracture zone (250 Hz, 39.11 J and 300 s per site). Follow up radiographies were performed after surgery and treatment with PBMT-sMF. Eighteen days post-surgery the healing process of bone was advanced. Fifty-five days post-surgery the callus was enlarged. In addition, radiographic union and clinical union was evidenced by closure of the fracture gap. This case report has reported the use of PBMT-sMF in order to accelerate and improve bone healing following a MIPO procedure on a complete transverse fracture in the proximal tibia of a puppy.

Assuntos

RESUMO

PURPOSE: The aim of this study is to compare the biomechanical behavior of three different fixation constructions currently used for buttressing the posteromedial shearing tibial plateau fragment. Our hypothesis is that non-locked implants provide sufficient comparable stability in posteromedial tibial plateau fractures as locked implants. METHODS: Fifteen left synthetic tibiae from a single manufacturing batch were used to create a posteromedial shear tibial plateau fracture. The fracture was buttressed with three different posteriorly placed five-hole straight small-fragment plate. Five models were fixed with a one-third tubular plate (TTP), five models with a dynamic compression plate (DCP), and five models with a locking compression plate (LCP). All groups were tested to vertical subsidence (Stage 1). In the same experiment (Stage 2), TTP and DCP groups were tested until catastrophic failure. Force versus displacement curves were obtained in the two stages of the experiment. RESULTS: Stage 1 - There was no significant difference in stiffness (p = 0.89), subsidence up to 2 mm (p = 0.38), and energy (p = 0.36) among the three fixation constructions. Stage 2 - Yield load revealed significantly less yield strength for the TTP group as compared with the DCP group (p = 0.048). However, there was no significant difference in maximum load to failure among the TTP and DCP fixation constructions (p = 0.16). CONCLUSION: Placement of either a locked or non-locked small fragment straight plate to buttress the posteromedial shear tibial plateau fragment has a similar biomechanical behavior. When the implant is positioned to buttress the shearing fragment it maximizes biomechanical stiffness.

RESUMO

BACKGROUND: Tibia fractures are common after trauma. Prior studies have shown that delays in treatment are associated with poor outcomes. A subpopulation of our patients are transported from Mexico, adding barriers to prompt care. We hypothesized that patients with tibia fractures crossing from Mexico would have delays in treatment and subsequently worse outcomes. METHODS: The trauma registry of an American College of Surgeons-verified level 1 trauma center was retrospectively reviewed for all tibia fractures admitted from 2010 to 2015. Data collection included demographics, country of injury, characterization of injuries, interventions, complications, and outcomes. Patients were subdivided into those injured in the United States and in Mexico, and the two groups were compared. RESULTS: A total of 498 patients were identified, 440 from the United States and 58 from Mexico. Mexico patients were more severely injured overall, with higher injury severity scores and a higher percentage of patients with abbreviated injury scale scores ≥3 for both head and chest regions. Mexico patients had longer times from injury to admission, as well as increased times to both debridement of open fractures and operative fixation after admission. On subgroup analysis of patients with isolated tibia fractures (other system abbreviated injury scale < 3), times from arrival to treatment and injury severity score were no longer statistically different. CONCLUSIONS: Patients crossing the border from Mexico with tibia fractures have delays in time to admission and from admission to operative management, although this is primarily due to other severe injuries. Ongoing systems development is required to minimize delays in care and optimize outcomes.

Assuntos

RESUMO

Se presentaron dos casos que tuvieron fractura de tibia, a quienes se les colocaron fijadores externos bipolares RALCA, lo que brinda mayor estabilidad. En el primer caso, que fue una niña de 9 años politraumatizada con gran cantidad de traumas graves que permitió continuar las curas sin peligro de movilidad del foco de fractura, evitó abrir el foco de fractura y, por consiguiente, aumentar el sangramiento y el ulterior empeoramiento dentro de la gravedad del caso. En el segundo, permitió la movilización precoz del miembro inferior izquierdo y evitó la inmovilización con yeso prolongada. Se obtuvieron resultados satisfactorios en ambos casos, llegando a la conclusión de que la aplicación de esta técnica es sumamente útil, y evita operaciones demoradas que afecten el estado general del paciente.

We presented two cases who had tibia fracture, to whom we put bipolar external fixers RALCA, giving more stability. In the first case, a girl aged 9 years, politraumatized with a great quantity of serious trauma, it allowed to continue the treatment and healing without the danger of mobility in the fracture focus, avoiding the fracture focus opening and, therefore, the increase of bleeding and the farther worsening in the case seriousness. In the second case it allowed the precocious mobilization of the lower left limb and avoided the long immobilization with a cast. We obtained satisfactory results in both cases, arriving to the conclusion that this technical application is extremely utile and avoids delayed operations affecting the general status of the patient.

Assuntos

RESUMO

Se denomina "Rodilla Flotante" a la combinación de fractura de fémur y tibia ipsilaterales. La incidencia exacta se desconoce, pero tiene un abordaje terapéutico complejo, una alta tasa de complicaciones y una elevada mortalidad. El presente estudio busca determinar los aspectos relacionados con esta patología en nuestro medio y analizarlos de una manera integral, realizándose para esto un estudio descriptivo y longitudinal retrospectivo abarcando 18 meses (de julio 2008 a diciembre 2009) que incluye a 17 pacientes con diagnóstico de "Rodilla Flotante" ingresados en el Servicio de Ortopedia y Traumatología del Hospital Clínico Viedma. Los resultados mostraron que esta lesión equivale al 1,9 % de los casos atendidos por este servicio. Siendo el 82,35% hombres. La edad promedio fue de 34 años. El mecanismo de producción más frecuente: accidentes en motocicleta (41,2%), seguido de atropellados (29,4%). En cuanto a la clasificación la mayor parte fue tipo I de Fraser (68,8%). El tratamiento quirúrgico definitivo se aplicó entre el 5º y 14° día en el 73.3%, mayormente usando clavos centro medulares en fémur y tibia. Los resultados del tratamiento fueron: excelentes 40%, buenos 33.3%, regulares 20% y pobres en el 6,6% según la escala de Karlstrom y Olerud. Las lesiones asociadas:TEC (80%), fracturas de pelvis (60%), trauma abdominal cerrado (60%) y trauma de tórax (33,3%). Dentro de las complicaciones, un paciente falleció por falla multiorgánica, otro concluyó en amputación, y cinco presentaron infección. Por lo que se concluye que en general los aspectos relacionados con esta patología, su presentación y tratamiento en nuestro medio, son similares a los que se encuentran descritos en la literatura médica.  .

"Floating knee" refers to the combination of fracture of femur and tibia ipsilateral .The exact incidence is unknown, but has a complex therapeutic approach, a high rate of complications and high mortality. This study pretends to determine aspects of this disease in our environment and to analyze them in a comprehensive manner, making this a retrospective descriptive study longitudinal spanning 18 months (from July 2008 to December 2009) includes 17 patients with diagnosis of "Floating knee" entered in the service of Orthopedics and Traumatology of the Hospital Clinico Viedma. The results showed that this injury is equivalent to 1.9% of the cases covered by this service. 82.35% corresponds to men.The middle age was 34 years. The most common mechanism: motoreyele accident (41,18%), followed by hasty (29.41%). The most common classification was Fraser type I (68.82%). The definitive surgical treatment apply between 5º and 14° day on the 73.3%, mostly using medullar center nail in femur and tibia. The results of the treatment were: excellent 40%, good 33.3%, regular 20% and poor in 6.6 % according to the scale of Karlstrom and Olerud. Associated injuries: TEC (80%), fracture of pelvis (60%), closed abdominal trauma (60%) and chest trauma (33.3%). In the complications, one patient died of multiorganic fail, another concluded in amputation, and five presented infection. The research group concluded that aspects of this disease, its presentation and treatment in our environment, are in general similar to those that are described in the medical literature.

RESUMO

OBJETIVO: comparar os resultados da fixação ou não da fíbula no tratamento das fraturas do terço distal da tíbia, com haste intramedular e placa em ponte. MÉTODOS: foram 47 fraturas em 47 pacientes, sendo que em 21 pacientes foi utilizada a haste intramedular bloqueada não fresada e em 26 a placa em ponte (placa de compressão dinâmica larga ou estreita) pela técnica minimamente invasiva. Todas as fraturas da fíbula se encontravam no mesmo nível ou abaixo da fratura da tíbia. RESULTADOS: No grupo tratado com fixação da fíbula, a média do tempo de consolidação foi de 14,6 semanas. No grupo tratado sem fixação da fíbula, a média do tempo de consolidação foi de 14,3 semanas. No grupo de pacientes tratados com fixação da fíbula observou-se uma proporção de desvio angular em varo (6,3 por cento) significativamente menor que o subgrupo sem fixação de fíbula (32,3 por cento), e com desvio angular em valgo (62,5 por cento) significativamente maior que o grupo sem fixação de fíbula (32,3 por cento). CONCLUSÃO: Os benefícios da fixação da fíbula permanecem ainda controversos quando ocorrem fraturas associadas com a tíbia Em relação à consolidação, não houve diferença significativa. Em relação à consolidação, não houve diferença significativa entre os grupos.

OBJECTIVE: to compare the results of fibula fixation (or non fixation) in the treatment of fractures located in the distal third of the tibia, by using intramedullary nailing and bridge plate. METHOD: 47 fractures on 47 patients were studied. Twenty-one patients were treated with non-reamed, interlocking intramedullary nailing, and 26 patients were treated with wide or narrow dynamic compression plates (using a minimally invasive technique). All of the fibular fractures were located at the same level or below tibial fractures. RESULTS: in the group of patients treated with fibula fixation, the average healing time was 14.6 weeks. In the group of patients treated without fibula fixation, the average healing time was 14.3 weeks. In the group of patients treated with fibula fixation a significantly smaller proportion of valgus angular deviation (6.3 percent) was observed compared to the group of patients treated without fibula fixation (32.3 percent). CONCLUSIONS: The benefits of fibula fixation remain controversial when tibial fractures are associated. Regarding fracture healing, there was no significant difference between the studied fracture groups.

Assuntos