[Retracted] Effects of Early Weight-Bearing Treadmill Training Combined with Pre-Emptive Analgesia on Femoral Fracture Recovery

Table 5

HE staining results on the 21st day after surgery.

Groups	What can be seen
A	A large area of cartilage callus can be found in the affected area, some cartilage callus began to ossify, bone trabecula was formed locally, and a small area of fibrous callus was still visible.
B	Cartilage callus, fibrous callus, and only a small amount of granulation tissue can be seen.
C	Granulation tissue can be seen in the affected area, and cartilage callus and fibrous callus can be seen locally.
D	Many fibrous callus and cartilage callus can be seen in the affected area.