Conclusions
Our study determined that PVIBGT effectively improved blood supply to the femoral head. We propose that biodegradable magnesium screws offer two primary advantages compared to other methods. Firstly, when compared to the direct embedding method, biodegradable magnesium screws provide better fixation and reduce the risk of fixation loosening, which could potentially lead to hip preservation failure. Secondly, compared to traditional titanium screws, magnesium screws can safely degrade in vivo while also promoting angiogenesis.