A new technique of autologous bone grafting for open-wedge high tibial osteotomy.

Purpose: This study aimed to demonstrate the application of orthotopic bone flap transplantation with a fibula transplantation (OBFT-FT) in open-wedge high tibial osteotomy (OW-HTO) and to assess the effect of OBFT-FT on gap healing.

Patients And Methods: From January to July 2020, 18 patients who underwent OW-HTO with OBFT-FT were reviewed for this study. Demographics, postoperative complications, and radiological and clinical outcomes of patients were collected.

Sequential growth of urban environmental efficiency: evidence from Chinese cities.

We examined the relationship between city size and environmental efficiency and found sequential growth of environmental efficiency in 282 Chinese cities from 2003 to 2019 and also tested the mechanism of industrial transfer. The empirical results show that as the period advances, the relationship between the environmental efficiency of cities and the city size changes from an upward-sloping straight line to a "U-shaped" structure, indicating that the urbanization advantages of megacities are shifting to large or medium-sized cities. This shift is the result of the industrial transfer.