A Novel Method for Preoperative Positioning of Total Ankle Replacement Using 3D Digital Model.

Objective: To establish a digital model of the ankle joint through 3D imaging technology and explore the preoperative placement of ankle replacement prostheses.

Methods: Computed tomography images of intact ankle joints from 54 cases in the outpatient and inpatient departments of our hospital were collected; according to the INBONE® total ankle system surgery process, the surgery model and surgical osteotomy were finished using MIMICS based on computer simulation method. The shortest distance was measured between the center point and the anterior, posterior, medial, and lateral, respectively, to ensure the precise position of the ankle replacement prosthesis by digital simulation surgery.

The multiple effects of hydrogen sulfide on cadmium toxicity in tobacco may be interacted with CaM signal transduction.

Soilless culture experiments with tobacco were conducted to explore how the signal molecule HS (0.3, 0.6, 0.

Hydrogen sulfide mediated alleviation of cadmium toxicity in L. and establishment of a comprehensive evaluation model for corresponding strategy.

A laboratory experiment was performed to evaluate the potential role of HS on cadmium (Cd) toxicity in L. Seeds pretreated with 0.3, 0.

[Research progress on the effects of atmospheric nitrogen dioxide on plant growth and metabo-lism].

Nitrogen dioxide (NO) is one type of the atmospheric nitrogen oxides, which is the main component of atmospheric aerosol particles. Reducing the concentration of atmospheric NO can decrease the haze in the air. Atmospheric NO deposits on plant leaves by both dry and wet deposition.