After patellar fracture surgery, the patellar gap is a little big can be observed first, according to the recovery situation and then decide, at the same time, need to review, oral medication, if necessary, re-operation. The patella gap is big after patella fracture surgery, may be because the patella is badly crushed, when X-ray or CT examination is carried out, the obvious gap can be seen. At this time, oral calcium and vitamin D treatment is given, with the passage of time, the fracture line will become more and more blurred with the formation of bone crust at the fracture until it disappears. A large patellar gap may also be the result of loosening of the internal fixation (titanium wire or cable) that holds the patella in place, in which case the postoperative fixation period needs to be extended by 2 to 4 weeks, with gradual flexion and extension of the knee in bed extending to 1 week postoperatively, with regular review of X-rays, and oral calcium and vitamin D. If the fracture still does not heal at 9 months postoperatively, it is recommended that the knee be examined by CT and MRI, and evaluated again for a decision on whether to give a conservative or surgical treatment. Patellar fracture needs to be reviewed regularly after surgery and treated under the guidance of physician.