title: Anatomical Study of the Ulnar Nerve Variations at High Humeral Level and Their Possible Clinical and Diagnostic Implications.
abstract: Background. Descriptive evaluation of nerve variations plays a pivotal role in the usefulness of clinical or surgical practice, as an anatomical variation often sets a risk of nerve palsy syndrome. Ulnar nerve (UN) is one amongst the major nerves involved in neuropathy. In the present anatomical study, variations related to ulnar nerve have been identified and its potential clinical implications discussed. Materials and Method. We examined 50 upper limb dissected specimens for possible ulnar nerve variations. Careful observation for any aberrant formation and/or communication in relation to UN has been carried out. Results. Four out of 50 limbs (8%) presented with variations related to ulnar nerve. Amongst them, in two cases abnormal communication with neighboring nerve was identified and variation in the formation of UN was noted in remaining two limbs. Conclusion. An unusual relation of UN with its neighboring nerves, thus muscles, and its aberrant formation might jeopardize the normal sensori-motor behavior. Knowledge about anatomical variations of the UN is therefore important for the clinicians in understanding the severity of ulnar nerve neuropathy related complications.
authors.affiliation: Department of Anatomy, Melaka Manipal Medical College, Manipal University, Manipal Campus, Manipal, Karnataka 576104, India.
authors.forename: Anitha
authors.initials: A
authors.lastname: Guru
authors.affiliation: Department of Anatomy, Melaka Manipal Medical College, Manipal University, Manipal Campus, Manipal, Karnataka 576104, India.
authors.forename: Naveen
authors.initials: N
authors.lastname: Kumar
authors.affiliation: Department of Anatomy, Melaka Manipal Medical College, Manipal University, Manipal Campus, Manipal, Karnataka 576104, India.
authors.forename: Swamy
authors.initials: S
authors.lastname: Ravindra Shanthakumar
authors.affiliation: Department of Anatomy, Melaka Manipal Medical College, Manipal University, Manipal Campus, Manipal, Karnataka 576104, India.
authors.forename: Jyothsna
authors.initials: J
authors.lastname: Patil
authors.affiliation: Department of Anatomy, Melaka Manipal Medical College, Manipal University, Manipal Campus, Manipal, Karnataka 576104, India.
authors.forename: Satheesha
authors.initials: S
authors.lastname: Nayak Badagabettu
authors.affiliation: Department of Anatomy, Melaka Manipal Medical College, Manipal University, Manipal Campus, Manipal, Karnataka 576104, India.
authors.forename: Ashwini
authors.initials: A
authors.lastname: Aithal Padur
authors.affiliation: Department of Anatomy, Melaka Manipal Medical College, Manipal University, Manipal Campus, Manipal, Karnataka 576104, India.
authors.forename: Venu Madhav
authors.initials: VM
authors.lastname: Nelluri