Moving to a healthier city? An analysis from China's internal population migration.

A healthy urban environment is considered as an important issue for the amenity and equity of migrants. China has one of the largest internal population movements in the world, and the environmental health of its migrants becomes a growing concern. Based on the 1‰ microdata from the 2015 1% population sample survey, this study uses the spatial visualization and spatial econometric interaction model to reveal intercity population migration patterns and the role of environmental health in China.

Resection arthrodesis using distraction osteogenesis then plating as a hybrid surgical technique for the management of bone sarcomas of the distal tibia.

Purpose: We report the oncological and functional results of limb salvage for bone sarcomas involving the distal tibia using hybrid surgical technique of resection arthrodesis by bone transport then plating.

Methods: Five patients (mean age 18.6 years) with primary distal tibial sarcomas (two Ewing's sarcomas and three osteosarcomas) were treated by this method.

Arcus venosus dorsalis pedis graft to restore the superficial palmar arch in devascularized hands.

For complex amputation injuries and anatomical characteristic of the metacarpus, restoration to the superficial palmar arch in severe devascularized or amputated hands remains a daunting challenge. In this article, we treated a series of five cases using an arcus venosus dorsalis pedis (AVDP) graft to restore the superficial palmar arches in devascularized hands. All hands survived and satisfying function was gained.

The free peroneal perforator-based sural neurofasciocutaneous flap: a novel tool for reconstruction of large soft-tissue defects in the upper limb.

Background: The sural neurofasciocutaneous flap has been widely used for reconstruction of soft-tissue defects in the lower leg, ankle, and foot. It can provide a large amount of tissue without compromising the function of the leg. The authors report the applications of the free peroneal perforator-based sural neurofasciocutaneous flap.

Free peroneal perforator-based sural neurofasciocutaneous flaps for reconstruction of hand and forearm.

Background: Sural neurofasciocutaneous flap has been popularly used as an excellent option for the coverage of soft tissue defects in the lower third of leg, ankle and foot, but its free transplantation has been rarely reported. The objective of our work was to investigate the operative technique and clinical results of repairing the soft tissue defects of hand and forearm with free peroneal perforator-based sural neurofasciocutaneous flap.

Methods: Between May 2006 and March 2007, 10 patients including 7 men and 3 women were treated.

[Improvement of blood compatibility of small intestinal submucosa used as engineering vascular scaffolds by nano-bionic surface modification].

Objective: To investigate the effects of nano-bionic surface modification in improving the blood compatibility of small intestinal submucosa (SIS) used as engineering vascular scaffolds.

Methods: SIS films were obtained from pig and underwent nano-bionic surface modification with plasma initiation technique. Scanning electron microscopy (SEM) was used to observe the morphological features, including water contact angle, of the SIS films after nano-bionic surface modification.