Variations in the Origin and Number of Medial Calcaneal Nerve
Variations of nerve are of anatomical, embryological and clinical importance. There adequate knowledge will help in increasing surgical precision and decreasing morbidity. In present study, the variation in the origin and number of medial calcaneal nerve (MCN) was studied. The material for present study comprised of 60 lower extremities belonging to 30 adult human cadavers obtained from department of Anatomy, GMC Amritsar. In the present study, number of MCN is highly variable. 1 MCN innervated 35%, 2 MCN innervated 40%, 3 MCN innervated 15%, 4 MCN innervated 8.3%, 5 MCN innervated 1.67%.
There were total 121 medial calcaneal nerves found in the present study. MCN originated from tibial nerve in 57 instances (47.10%), from bifurcation of tibial nerve in 30 (24.79%), from lateral plantar nerve in 32 (26.44%) and from medial plantar nerve in 2 instances (1.65%). Description of variation of origin of medial calcaneal nerve in medial aspect of calcaneus is required to establish an anatomical guide for diagnosis and therapy of some tarsal region diseases including tarsal tunnel syndrome, fixation of fracture with external nailing, medial displacement osteotomy and nerve block in podiatric medicine.
Govsa F, Bilge O, Ozer MA. Variation in the origin of medial and inferior calcaneal nerve. Arch Orthop Trauma Surg 2006;126: 6-14.
Dellon AL, Kim J, Spaulding CM. Variation in the origin of the medial calcaneal nerve. J Am Podiatr Med Assoc 2002;92(2):97-101.
Romans GJ. The popliteal fossa, back of thigh, leg and foot. In: Cuningham’s Manual of Practical Anatomy. 15th Edition. Edinburgh, London: Book Society and Oxygen University Press; 1986.p.160- 214.
Oh SJ, Meyer RD. Entrapment neuropathies of the tibial (posterior tibial) nerve. Neurol Clin 1999;17(3):593-615.
Louisia S, Masquelet AC. The medial and inferior calcaneal nerves; an anatomic study. Surg Radiol Anat 1999;21:169-173.
Park TA, Del TDR. The medial calcaneal nerve: anatomy and nerve conduction technique. Muscle and Nerve 1995;19:106-108.
Dellon AL, Mackinnon SE. Tibial nerve branching in tarsal tunnel. Arch Neurol 1984;41:645-646.
Didia BC, Horsefall AV. Medial calcaneal nerve: an anatomic study. J Am Podiatr Ass 1990;80:115-119.
Vanita Ahuja, Deepak Thapa. Combination of diagnostic medial calcaneal nerve block followed by pulsed radiofrequency for plantar fascitis pain: A new modality. Indian Journal of Anaesthesia 2014;58(2):183-185.
- There are currently no refbacks.