Anatomy and Clinical Application of Transfer of Pronator Quadratus Muscle Branch of Anterior Interosseous Nerve in Repairing Thrhenar Muscle Branch of Median Nerve and Deep Branch of Ulnar Nerve
LI Changqing
FEI Qili
Abstract：Objective:To introduce the anatoamy and clinical application of transfer of the pronator quadratus muscle(PQ)branch of
anterior interosseous nerve(AIN)in repairing thenar muscle branch of median nerve (MN) and deep branch of ulnar nerve (UN). Methods: The nerve stem diameter of PQ branch of AIN, thenar muscle branch of MN, and deep branch of the UN,as well as distance between the upper margin of PQ and the origin of thenar muscle branch and deep branch of UN were measured in 6 adult forearm specimens respectively. The surgical procedures were performed in 5 cases from April 1996 to March 1997, which included 3 cases of old injury of ulnar nerve,and 1 case of old and 1 case of fresh injury of median nerve.Nerve graft was used in 3 cases. Results:The nerve stem diameter of PQ branch of AIN,thenar muscle branch of MN,and deep branch of UN was 1.3～1.9 mm,1.5～2.3 mm and 1.8～2.3mm respectively. Distance between the upper margin of PQ and the origin of thenar muscle branch and deep branch of UN was 75.2～84.8 mm,53.5～74.0 mm respectively.Follow-up ranged from 12 to 23 months. The power of hand intrinsic muscle recovered in 4 cases(M3-M4). Conclusion:Transfer of PQ branch of AIN for the repair of thenar muscle branch of MN and deep branch of UN enables motor fibers to grow into the motorical end-plate,shortens distance of nerve recovery,and resumes the hand dexterous motion
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Publication Date：2001-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 211-212 )