The goal of this study is to evaluate the incidence rate of iatrogenic injuries to the infrapatellar branch(es) of saphenous nerve during ACL reconstruction with four-strand hamstring tendon autograft. Retrospective review of 226 patients that underwent 230 arthroscopically assisted primary ACL reconstructions with four-strand hamstring tendon autograft, between March 2002 and December 2004. The patients were separated into two groups. In group 1 (116 knees) the tendon was harvested and tibia prepared through a 3-cm vertical surgical incision (between March 2002 and September 2003) and in group 2 (114 knees) through a 3-cm horizontal surgical incision (between October 2003 and December 2004). In group 1, we found 39.7% of the patients with disturbed sensitivity in the area of the infrapatellar branch(es) of the saphenous nerve distribution. In patients of group 2 the incidence of nerve injury was 14.9% (P<0.001). The horizontal surgical incision in harvesting hamstrings tendon autograft for ACL reconstruction was found to have less associated chance of iatrogenic injury to the infrapatellar branch(es) of the saphenous nerve. No technical ties were found in both incisions for graft harvest.
Faujasite-type zeolite membranes, having a thickness of approximately 20 µm, were synthesized on porous R-alumina supports using the secondary growth method. For the first time, a detailed investigation of the faujasite membrane's ability to separate propylene/propane mixtures has been performed. Single-component and binary mixture permeation experiments indicated that the membranes are propylene permselective. The maximum separation factor (13.7 ( 1 at 100 °C) and the maximum ideal selectivity (28 at 35 °C) indicate that the membranes have improved performance, compared to previously reported results. Membrane permselective behavior was maintained over the entire range of feed compositions examined (P total ) 101 kPa and P propylene ) 12-93 kPa). The temperature dependence differences between the single-component and binary mixture permeation fluxes indicate that the presence of propylene enhances propane transport through the membrane.
Evaluation of epidemiological trends, risk factors, and clinical outcome associated with candidemia at a neonatal intensive care unit is reported. From January 2005 to December 2009, forty candidemia cases were identified. C. albicans and C. parapsilosis were the most common species recovered (69 and 24%, respectively). All C. parapsilosis strains were susceptible to antifungals, whereas, C. albicans exhibited higher resistance rates to azoles. Low birth weight, low gestational age, presence of central lines, endotracheal intubation, total parenteral nutrition, previous use of antibiotics, steroids, previous episode(s) of bacteremia and prolonged stay in intensive care unit were common features associated with candidemia. C. albicans was most often isolated from extremely low birth weight neonates as compared to non-albicans Candida (P < 0.01). Mortality rate was 35.7% and was associated with low gestational age (P < 0.01), low birth weight (P < 0.01), and presence of renal failure (P < 0.05). Furthermore, a critical review of recent published case series is presented.
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