66 research outputs found
Foot and ankle surgery in Australia: a descriptive analysis of the Medicare Benefits Schedule database, 1997–2006
This is an Open Access article distributed under the terms of the Creative Commons Attribution Licens
Demographics of extra-articular calcaneal fractures: Including a review of the literature on treatment and outcome
Introduction: Extra-articular calcaneal fractures represent 25-40% of all calcaneal fractures and an even higher percentage of up to 60% is seen in children. A disproportionately small part of the literature on calcaneal fractures involves the extra-articular type. The aim of this study was to investigate the incidence of extra-articular calcaneal fractures in a Level 1 trauma centre, define the distribution of the various types of fractures and compare patient demographics between extra- and intra-articular calcaneal fractures. In addition the literature was reviewed for the most common types of extra-articular calcaneal fractures with regard to incidence, treatment and clinical outcome. Methods: The radiological records between 2003 and 2005 were reviewed for intra- and extra-articular calcaneal fractures. Patient gender-distribution and age were compared. A literature search was conducted for the treatment of extra-articular calcaneal fractures. Results: In this 3-year study period a total of 49 patients with 50 extra-articular calcaneal fractures and 91 patients with 101 intra-articular fractures were identified. The median age for the first group was 32.7 years, and for the second group 40.3 years; P = 0.04. Male predominance was significantly less pronounced for extra-articular (63%) compared with intra-articular fractures (79%; P = 0.04). Conclusion: One-third of all calcaneal fractures are extra-articular. Significant differences exist between the intra- and extra-articular groups, in terms of lower age and male-female ratio. The literature study shows inconsistencies in treatment options, but most extra-articular fractures are well manageable conservatively
Investigations of stellar mass loss and the interstellar medium
SIGLEAvailable from British Library Document Supply Centre- DSC:DXN1367 / BLDSC - British Library Document Supply CentreGBUnited Kingdo
Synthesis of 2,3-Dihydro-1-phenylbenzo[<i>b</i>]phosphole (1‑Phenylphosphindane) and Its Use as a Mechanistic Test in the Asymmetric Appel Reaction: Decisive Evidence against Involvement of Pseudorotation in the Stereoselecting Step
Racemic
2,3-dihydro-1-phenylbenzoÂ[<i>b</i>]Âphosphole
was obtained by reduction of 1-phenylbenzoÂ[<i>b</i>]Âphosphole-1-oxide,
itself derived by ring-closing metathesis of phenylstyrylvinylphosphine
oxide. The title compound was then reoxidized under asymmetric Appel
conditions. Comparison of the sense and degree of the stereoselectivity
to those obtained with an open-chain analogue indicated that the ring
system does not affect the selectivity of the process. This in turn
strongly suggests that the stereoselection is not related to pseudorotamer
preferences in putative phosphorane intermediates
- …