Applied Anatomical Study of Radial Nerve Transfer on Internal Fixation of Fracture of Humerus

Objective: Through the anatomical observe and measurement on middle and distal humeral and radial nerve, the radial nerve transfer operation and the internal fixation of middle and distal humerus were carried on. Provide anatomical foundation for avoiding reinjury in operation and post operation while taking the internal fixation substance out. A new surgical method has been designed. Methods: Rradial nerve’s stretching branch in 30 upper climbs were observed and measured on 15 adults fixed in10% formalin.The anatomical structures of humerus of one hundred specimens were also observed.This data were made use of designing and performing the radial transfer operation after statistical analyzing. Results: The length of sulcus for radial nerve: the left side was 56.52±10.13mm(43.82~75.68mm), and the right side 65.74±5.80mm(55.42~78.82mm). The stretch angle of radial nerve: the left was 13.00°±1.08° (10.00°~13.50°), the right 13.86°±0.97° (10.50°~14.50°). The stretch angle of radial nerve: The radial nerve in the sulcus for radial nerve went from superomidial region to lateral lower region and the angle open to the inner part was formed. The angle is obvious in 29 sides, that is 96.67%, and not obvious only in 1 side, that is 3.33%. The curve distance between the exit of radial nerve and the branches is 14.26cm±1.01cm(12.80cm~19.20cm). The effects were satisfactory for 56 patients performed this operation. The fracture healed completely and there was no complication. Conclusion: The design of radial nerve transfer operation isreasonable. It reduces the injury of the radial nerve.