Type of Article: Original Research
Year: 2016 | Volume 4 | Issue 1 | Page No. 2034-2036
Date of Publication: 29-02-2016
A STUDY OF TIBIAL NERVE BIFURCATION AND BRANCHING PATTERN OF CALCANEAL NERVE IN THE TARSAL TUNNEL
* Assistant Professor, JSS Medical College, JSS University, Mysore, Karnataka,India.
Address: Dr. D. Malar, Assistant professor, JSS Medical College, JSS University, Mysore, Karnataka, India. Phone Number: 91-9448434067, 08212410142
E-Mail: firstname.lastname@example.org, email@example.com
Background: Tibial nerve in the distal part of the leg branches into the calcaneal branch, medial plantar nerve and lateral plantat nerve.These branches inervate calcaneal,the medialplantar and the lateral plantar areas of the foot, respectively and carry sensory information from these areas. Tibial nerve and its branches show variation in branching pattern, and level of bifurcation. Detail knowledge of the anatomical variation of tibial nerve and its branches is essential for diagnosis and therapy tarsal tunnel syndrome, fractures requiring external nailing and nerve blocks.
Materials and Methods: Tibial nerve and its branches in the tarsal tunnel were dissected and studiedl in twenty adult cadavers. Bifurcation levels of tibial nerve in relation to the Medio-malleolar-calcaneal axis were noted. The ramification pattern of medial calcaneal nerve was observed and studied.
Results: In the present study tibial nerve bifurcation occurred within the tunnel in 100% cases. According to the level of bifurcation, 85% cases was type I, 10% cases was type II and 5%cases was type III. Medial calcaneal branches showed variations in number and origin, one medial calcaneal nerve was observed in 50% case , two in 20% cases and three in 10% of cases. The medial calcaneal nerve originated from the tibial nerve in85% cases.
Conclusion: The knowledge of these variations may help in diagnosis and therapy of tarsal tunnel syndrome and prevent damage to the structures in the tarsal tunnel during various surgical procedures in the tarsal region.
Key words: Ttibial nerve, branches, variations , tarsal tunnel syndrome.
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D.Malar. A STUDY OF TIBIAL NERVE BIFURCATION AND BRANCHING PATTERN OF CALCANEAL NERVE IN THE TARSAL TUNNEL. Int J Anat Res 2016;4(1):2034-2036. DOI: 10.16965/ijar.2016.139