Technical errors during intramedullary nail insertion are not uncommon. We report a case of tibial guide wire penetration into the distal tibial articular surface, the talus and the calcaneus during insertion of the nail with the ankle dorsiflexed. This has not been reported in the past. Computerized tomogram was a useful tool in the diagnosis. This complication was associated with long-standin...

BACKGROUND During lead implantation, venous access is generally achieved by puncturing the subclavian or axillary vein. Sometimes, although rarely, after lead positioning, the lead must be changed because of its inadequate mechanical stability or poor pacing parameters. This report concerns a technique of lead exchange that avoids an additional vein puncture. METHOD The tip of the lead, that ...

We construct an integral representation for the momentum space Green’s function for a Neutron in interaction with a straight current carrying wire. PACS numbers: 11.30.Pb, 03.65.Fd, 11.10.Ef ∗This research was supported in part by the Brazilian Research Agencies CNPq and Finep. 1 Consider an electrically neutral spin 1/2 particle of mass M and a magnetic moment μ~σ (a Neutron) in interaction wi...