Cirugía de Columna y articulaciones

Cirugía de Columna y articulaciones
Cirugía de Columna y Articulaciones

lunes, 13 de octubre de 2014

"Discriminating imaging findings of acute osteoporotic vertebral fracture: a prospective multicenter cohorte study."

http://med-ortho.blogspot.mx/2014/10/discriminating-imaging-findings-of.html


"Discriminating imaging findings of acute osteoporotic vertebral fracture: a prospective multicenter cohorte study."

BackgroundAppropriate treatment of osteoporotic vertebral fractures (OVF) requires knowledge of the age of the fracture. Although diagnostic imaging has made remarkable progress in recent years, it remains difficult to differentiate acute fractures from old. Our purpose was to investigate chronological changes in radiological findings after OVF and to identify discriminators of acute versus older injuries.MethodsWe evaluated 139 vertebrae in 136 patients. All patients underwent X-ray and magnetic resonance imaging (MRI) examination within 2?weeks of injury and again after 6?months. The anterior vertebral height ratio (AVHR) was calculated on lateral X-ray, and the intensity change of the posterior wall of the fractured vertebra was evaluated on T1-weighted MRI. The cutoff AVHR value to diagnose acute fracture was determined by receiver operating characteristic (ROC) curve analysis.ResultsAverage AVHR fell from 84.6% at initial visit to 63.7% at 6?months. When acute fracture was defined as AVHR >75%, sensitivity was 85.6%, specificity was 67.6%, and positive predictive value was 72.6%. On MRI, 83.5% of fractured vertebrae showed intensity change in the posterior wall in the acute stage, which fell to 41.7% of vertebrae after 6?months. When intensity change in the posterior wall and AVHR >75% were both present, the specificity and positive predictive value for diagnosing acute fracture improved to 87.1% and 84.7%, respectively.ConclusionsThis study suggests that vertebral fracture rarely shows significant collapse on X-ray in the first 2?weeks after injury. The combination of intensity change in the posterior wall on MRI and AVHR >75% on X-ray indicates a high probability of acute fracture.

sábado, 11 de octubre de 2014

La hernia discal se cura con paciencia o cirugía

EFE SALUD 

Skeletal Tuberculosis- SM Tuli

IOA Oration delivered by Prof SM Tuli at IOACON 2013 Agra
Organised by Dr Sanjay Chaturvedi

IOACON2013 - KS Greval Lecture - S.M.Tuli

martes, 7 de octubre de 2014

Introducing the Pseudomonads

http://schaechter.asmblog.org/schaechter/2014/10/chromosome-organization-the-pseudomonas-way-part-1.html

(Re) La introducción de las bacterias Pseudomonas. A pesar de la procedencia un tanto turbia de su nombre, pseudomonas son todo menos "pseudo" en cuanto a su versatilidad metabólica: son omnívoros bacterianas, heterótrofos todavía lejos de exigente.
Los miembros de la familia Pseudomonadaceae (Gammaproteobacteria) son ubicuos y constituyen un porcentaje respetable de los microbios en cualquier muestra tomadas de cualquier fuente, ya sea aire, la piel del agua, suelo, planta o animal, plástico o metal superficies. Como ingenieros químicos especializados, que pueden convertir las botellas de PET para biodiesel y promover la nucleación de hielo a temperaturas por encima de cero en hojas de las plantas ..





Discusión entre pares / 45yrs pts case of fused knee with s.c # rt femure operated with LCP

45yrs pts case of fused knee with s.c # rt femure operated with LCP
  • Simon Thomas There are certain problems as i can see. 
    First your plate is short. With lot of screws near to fracture. 
    There appears to be some distraction at the fracture
    Plan for elective grafting at six weeks. At that time put a few more screws in the proximal part of the plate. I may remove one screw near to the fracture
    At the time of grafting assess the fracture for movement. If there is movement visible at the fracture i would put a medial plate too. DCP
    3 horas · Me gusta · 3
  • Gopal Goel with this construct chances of failure are high
  • Srinivas Daravathu Liss plating or dflcp with bone grafting
  • Ibrahim Ramzy two screw before the # not enough
  • Srinivas Daravathu U wud hav also added bone graft for this
    3 horas · Me gusta · 2
  • Uzair Hasan What were the perop findings sir?
  • Uzair Hasan In practice, older orthpedists don't use graft in comminuted #sand rely on the fact that smaller # fragments act as graft....what do you think sir?
  • Jim Bryan Pantas poor construct.. should have not violated the fracture site.. always respect the soft tissues
  • Jutti Chandra Ganesan one different thought... why could have not few degrees of flexion at the knee. why again a straight stiff knee?

sábado, 4 de octubre de 2014

Large Joint Osteoarticular Infection Caused by Mycobacterium arupense

http://www.healio.com/orthopedics/journals/ortho/2014-9-37-9/%7Bccc6ba01-e84e-4758-a554-5ccb2e15e5e1%7D/large-joint-osteoarticular-infection-caused-by-mycobacterium-arupense


CASE REPORT 

Large Joint Osteoarticular Infection Caused by Mycobacterium arupense

Adam Seidl, MD; Bennie Lindeque, MD, PhD
Large Joint Osteoarticular Infection Caused by Mycobacterium arupense Read more

Nontuberculous mycobacteria tenosynovitis and osteoarticular infections have increased during the past 25 years. At least 15 different species of atypical mycobacteria have been mentioned in the literature as the cause of orthopedic infections....