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  • Title: Medial transposition of the radial nerve for anterolateral plate fixation of the humerus: cadaveric study.
    Author: Bacakoglu AK, Kiray A, Muratli K, Ekin A, Ergur I.
    Journal: Anat Sci Int; 2007 Jun; 82(2):116-20. PubMed ID: 17585568.
    Abstract:
    In the operative treatment of humeral shaft fractures the radial nerve may be injured during the reduction of fracture fragments or the application of plate and screws. Also, secondary surgical explorations due to delayed or non-union carry a high risk of radial nerve injury because of the scarring of the neighboring tissue and proximity of the nerve to the implants. Consequently, the need for the transposition of the radial nerve to a safer position arises. A total of 22 (11 right, 11 left) cadaveric upper extremities were studied to evaluate the medial transposition of the radial nerve during the open reduction and anterolateral plate fixation of humeral fractures. The radial nerve was transposed medially in a distal plate fixated humeral fracture model. Distance measurements of the radial nerve and the division points of its branches were carried out in the transposed position and in the original course of the nerve. There was no statistically significant difference between the original course and medially transposed measurements. The distances from the reference point to the division points of other branches (posterior antebrachial cutaneous nerve, motor branch to brachioradialis, most distal motor branch to triceps) were not altered. The mean length of the radial nerve was 185.2 +/- 14.3 mm in its original course and 183.7 +/- 13.8 mm in the medially transposed course. In conclusion, the present study shows that medial transposition of the radial nerve through the fracture line does not increase the nerve's length and may be utilized in cases in which anterolateral plate fixation is indicated.
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