| Objective:Treatment should be adopted for closed reduction and dissatisfied,polytrauma, multiple fractures associated with radial nerve injury andopenness of the humerus fractures surgical. To explore anatomic featuresof the humerus,anterior humeral circumflex artery, axillary nerve, radialnerve and ulnar nerve.Materials and methods:Learn to normal adult embalmed corpse specimen20(male14,female6), a total of40shoulder as the research object. Shoulder peakedge of collar bone end is measured with a vernier caliper, nodules vertexand brachial artery before on vertical distance, spin before the brachialartery diameter. Shoulder peak before the lower edge, the apex of thegreater tuberosity and axillary nerves on edge of the vertical distance, thetransverse diameter of axillary nerve. Spin brachial artery, axillary nervewith the long axis of vertical Angle to shaft of humerus. Steel distalportions in the distal incision edge distance at the distance of the ulnarnerve ulnar nerve ditch, steel plate inside of the rim and the ulnar nerve inthe medial muscular intervals. Groove length of radial nerve, radial nervego line Angle (or so). The results:Shoulder peak before end nozzles and the spiral brachial artery on thevertical edge distance is (5.1±0.2) cm (4.6～5.5cm), nodulesvertex and vertical distance of spin on the brachial artery before (2.5±0.2) cm (2.0～3.0cm), spin before the brachial artery diameter is (2.6±0.2) mm (2.2～3.1mm), brachial artery before and the long axis ofthe shaft Angle for （14±4）°(5～22°), the edge of a shoulder peak andaxillary nerves on edge of the vertical distance(6.3±0.5)cm(5.2～7.0cm),the vertex of the greater tuberosity and axillary nerve on the edge of thevertical distance (3.5±0.2)cm(3.2～4.1cm), axillary nerve an Anglewith the long axis perpendicular to shaft of humerus(22±7)°(8～37°),deltoid before a third gap in transverse diameter of the axillary nerve (4.2±0.8)mm(3.7～5.5mm).Distal incision plate in the distal inner edge distance in ulnar nerve ditchthe distance of ulnar nerve is (9.86±0.87) mm (95%confidence interal,9.24～10.48mm). If open the humerus muscular tube, slightly to theradial nerve for free, can increase (5.5±0.63) cm (95%confidenceinteral,5.055.95cm) of the security zone. Steel plate inside of the rimand the ulnar nerve in the medial muscular distance intervals for (1.39±0.55) cm (95%confidence interal,1.001.78cm).Radial nerve gap length on the left side of the56.52mm±10.13mm(43.82mm～75.68mm), the right side of the65.74mm±5.80mm(55.42mm～78.82mm). Angle on the left side of the radial nerve walk line is13.00°±1.08°(10.00°～13.50°); On the right side of13.86°±0.97°(10.50°～14.50°).Conclusion:1. When humerus fracture with external fixation stent placement whenthe puncture point should be located in the humerus lateral can avoidinjury of brachial artery and line structure.2. The radial side return, called lateral artery length is about3cm,diameter is about2mm, depending on the data available in intraoperativecan more accurate separation and collection vascular pedicle bone flap(film).3. The humerus anterolateral implanted steel treatment of humerusfracture, can avoid radial nerve and ulnar nerve injuries. |
