Anatomical base of radial nervetransfer operation

[Objective]Through the anatomical observation and measurement on middle and distal humerus and radial nerve,To investigete a new radial nerve transfer operation.[Method]By means of anatomical methods,radial nerve's stretching branch,the relationship between radial nerve and deep brachial vessel in 30 upper climbs were observed and measured on 15 adults fixed in 10% formalin.The anatomical structures of humerus of one hundred specimens were also observed.This data were made by designing and performing the radial transfer operation after statistical analyzing.[Result](1)Length of humerus: The left side was (30.60±1.46)cm and the right side(31.37±1.23)cm.The length of sulcus for radial nerve: the left side was(5.65±1.01)cm and the right side(6.57±0.58)cm.The stretch angle of radial nerve: the left was 13.00°±1.08°,the right13.86°±0.97°.(2)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 was 96.67%,and not obvious only in 1 side,that was 3.33%.(3)The position of the radial nerve superficial and deep branches: The radial nerve in 17 sides branches were above interepicondylar line,which was 76.67%.Below the line were 10 sides,cover 33.33% and on the line 3 sides,cover 10.00%.(4)The curve distance between the exit of radial nerve and the brarnches was(14.26±1.01)cm.(5)The relationship between radial nerve and deep brachial vessel: the radial nerve lies inside of the deep brachial vessel were 12 sides,lies the outside of the deep brachial vessel were 10 sides and cross the deep brachial vessel were 8 sides.[Conclusion]The design of radial nerve transfer operation is reasonable,it conforms to the radial nerve's anatomy and physiology and provides much wider operation space for the performing of all kinds of internal fixation on fractures of middle and distal humerus.It reduces the injury of the radial nerve in the course of the operation and alter the operation while taking the internal fixation substance out.It doesn't increase the difficulty and injury.