Conclusion With the forearm being pronated, the proximal 7/10 of the line between the LHE and the SPU can be considered as the projection on body surface of the deep branch of the radial nerve.

• 结论前臂于旋前位时,肱骨外上髁至尺骨茎突连线近端7/10可作为桡神经深支的体表投影;