The operation norms for the upper and lower limb bone models are mainly used to help learners master the structure, positional relationship and common clinical operation methods of the lower limb bones. This model is usually made to real scale, showing the femur, tibia, fibula and joint structure. It can be used for anatomy teaching, fracture reduction demonstration and external fixation training.

When operating, handle with care first to avoid violent disassembly and assembly, which may damage the joint connection parts. Learners should select the corresponding parts for observation or operation based on the teaching objectives. For instance, when conducting bone marking training, they should accurately identify the anatomical landmarks of each bone. When simulating fracture treatment or fixation, clinical procedures should be strictly followed to ensure the correct sequence of operations and standardized movements.

During use, keep the model clean and avoid contact of corrosive liquids with the bone surface to prevent affecting durability. After the operation is completed, the model should be reset and properly stored. Through standardized operations, trainees can not only become familiar with the spatial relationship of the lower limb bones and the range of motion of the joints, but also master clinical skills in simulated scenarios. The standardized use of skeletal models of the upper and lower extremities is conducive to improving the quality of anatomy teaching and the effect of skills training.