Legal analysis: According to the national industrial injury appraisal standard, the situation that there is no dysfunction after the fracture of various parts of the body belongs to the industrial injury level 10, that is, the fracture of any part after the industrial injury can be regarded as the lowest level 10 disability, but the official disability level appraisal result shall prevail according to the healing and functional recovery. Taking patella fracture as an example, its lowest level can be identified as grade 10 disability. If the patella is comminuted fracture, patella defect, or the articular surface can not be completely recovered by surgery, the articular surface will be uneven, the knee joint will be stiff, osteoarthritis will occur in the later stage, and the knee joint function will be limited or painful, and the work-related injury can reach Grade 9 or Grade 8 disability. Severe functional limitation and pain can be determined as grade seven.

Legal basis: Regulations on Industrial Injury Insurance

Article 17 If an employee is injured by an accident or is diagnosed and identified as an occupational disease according to the provisions of the Law on the Prevention and Control of Occupational Diseases, the unit to which he belongs shall, within 30 days from the date of the accident injury or the date of the diagnosis and identification as an occupational disease, apply to the social insurance administrative department in the overall planning area for work-related injury identification.

Twenty-second labor ability appraisal refers to the level appraisal of the degree of labor dysfunction and self-care disorder. Labor dysfunction is divided into ten levels of disability, the heaviest being 1 level, and the lightest being1level. There are three levels of self-care obstacles: life can't take care of itself at all, most of life can't take care of itself, and some of life can't take care of itself. The labor ability appraisal standard shall be formulated by the social insurance administrative department of the State Council in conjunction with the health administrative department of the State Council.