Hydrodynamic Limit of Condensing Two-Species Zero Range Processes with Sub-critical Initial Profiles.

Two-species condensing zero range processes (ZRPs) are interacting particle systems with two species of particles and zero range interaction exhibiting phase separation outside a domain of sub-critical densities. We prove the hydrodynamic limit of nearest neighbour mean zero two-species condensing ZRP with bounded local jump rate for sub-critical initial profiles, i.e.

Neurological deterioration due to cord and cauda compression at the site of laminar hook insertion : Immediate complication of Texas Scottish Rite Hospital instrumentation for lumbar vertebral fracture.

We report an unusual case of a 71-year-old female patient with incomplete paraplegia who experienced neurological deterioration a few hours after the insertion of TSRH (Texas Scottish Hospital Rite) laminar hooks for correction and stabilisation of a fracture of the first lumbar vertebra. Combined CT-myelography revealed significant encroachment of the hooks on the spinal canal, associated with compression of the spinal cord and cauda. The hardware was removed a few hours after the first operation.