Reference values for clinical healing time of common fractures in adults 1. clavicle fracture 4-6 weeks 2. humerus surgical neck fracture 4-6 weeks 3. humerus stem fracture 4-8 weeks 4. supracondylar humerus fracture 4-6 weeks 5. distal radius fracture 4-6 weeks 6. femoral neck fracture 12-24 weeks 7. intertrochanteric (intertrochanteric) femur fracture 8-12 weeks 8. femoral stem fracture 8-12 weeks 9. patella fracture 4-6 weeks 10. Fracture of tibiofibula 8-10 weeks 11.Fracture of internal, external and posterior ankle 4-6 weeks Clinical healing criteria of fracture 1.No local pressure pain, no longitudinal buckling pain; 2.No abnormal local activity; 3.X-ray photograph shows fracture line blurred, there is continuous bone crust through the fracture line; 4.Functional measurement: under the release of external fixation, the upper limb can lift 1K weight for 1 minute, the lower limb can walk continuously unassisted for 3 minutes, and not less than 30 steps. and not less than 30 steps. If the fracture is not deformed after 2 weeks of continuous observation, the first day of observation will be the date of clinical healing.2,4 The determination of the two functions must be done carefully (try not to self-test) in order not to deform or re-fracture. In addition, fracture healing is influenced by age, infection, underlying disorders, type of fracture, specific site, soft tissue injury, treatment and rehabilitation.